2024
Martínez, D. N.; Vibrans, H.; Espinosa-García, F. J.; Camacho-Cervantes, M.; de la Barrera, E.
Malezas ruderales como biomonitores del depósito de nitrógeno urbano Journal Article Forthcoming
In: Ecosistemas, Forthcoming.
Abstract | BibTeX | Tags: anthropocene, biomonitoring, invasive species, nitrogen, nitrogen deposition, plant nutrition, pollution, urban ecology
@article{Martínez2024,
title = {Malezas ruderales como biomonitores del depósito de nitrógeno urbano},
author = {D. N. Martínez and H. Vibrans and F.J. Espinosa-García and M. Camacho-Cervantes and E. de la Barrera},
year = {2024},
date = {2024-02-29},
urldate = {2024-02-29},
journal = {Ecosistemas},
abstract = {The production of reactive forms of nitrogen has surpassed safe planetary boundaries, jeopardizing the proper functioning of ecosystems. Their deposition is a threat to both biodiversity and public health. Monitoring systems to quantify nitrogen deposition are often lacking, making biomonitoring a potential alternative. In biomonitoring, physiological variables responsive to nitrogen availability are identified, along with organisms tolerant to high nitrogen availability. Although epiphytic organisms are frequently used as biomonitors, many are confined to humid climates and areas with minimal anthropogenic disturbance. The aim of this review is to identify potential nitrogen deposition biomonitors for sites under anthropic disturbance. Ruderal weeds persist and thrive in urban areas, where disturbance, pollutant emissions, and nitrogen deposition rates are often high. Moreover, several weeds are identified as nitrophilic, and within a well-represented group among them, grasses, tolerance to high nitrogen deposition rates has been documented. The use of these organisms has allowed for the identification of contributions from nitrogen sources and the increase of nitrogen in environments that are restrictive for other plants.},
keywords = {anthropocene, biomonitoring, invasive species, nitrogen, nitrogen deposition, plant nutrition, pollution, urban ecology},
pubstate = {forthcoming},
tppubtype = {article}
}
2022
de la Barrera, E.
The role of CAM ecophysiology in the Anthropocene Journal Article
In: Acta Horticulturae, vol. 1343, pp. 267-281, 2022.
Abstract | Links | BibTeX | Tags: anthropocene, arid, arid agriculture, atmospheric pollution, biomonitors, climate change, environmental productivity index, food security, nitrogen, nitrogen deposition, planetary boundaries
@article{delaBarrera2022,
title = {The role of CAM ecophysiology in the Anthropocene},
author = {E. de la Barrera},
url = {http://agro.mx/wp-content/uploads/2022/09/071-delaB-CAM-Anthropocene.pdf},
doi = {10.17660/ActaHortic.2022.1343.35},
year = {2022},
date = {2022-09-19},
urldate = {2022-09-19},
journal = {Acta Horticulturae},
volume = {1343},
pages = {267-281},
abstract = {Human impact on the planet is such that geologists have acknowledged the start of a new geological epoch, the Anthropocene, which is characterized by an environmental emergency with multiple open fronts such as climate change, biodiversity loss, decreased fresh water availability, alterations to the nitrogen cycle, and chemical pollution. Activities such as food production and the increasing aggregation of people in urban areas are simultaneously major drivers and vulnerable points of such environmental change. For example, climate change represents a major threat to food production, considering that a reduction of annual precipitation, in addition to temperature increases, is likely to occur especially in tropical agricultural regions. The use of CAM crops has been recognized as a useful strategy for climate change adaptation, owing to their tolerance of high temperatures and their inherently high water use efficiency. The potential performance of Opuntia ficus-indica and Agave tequilana is modeled as an application of the Environmental Productivity Index for identifying potential areas for cultivation under climate change. Regarding alterations to the nitrogen biogeochemical cycle, CAM epiphytes can be useful to characterize environmental pollution in tropical environments, especially when electrochemical monitoring networks are lacking. Indeed, CAM epiphytes are particularly promising to characterize the prevalent levels of heavy metals, persistent organic pollutants and, especially, nitrogen deposition. This is illustrated with the use of the orchid Laelia speciosa and the bromeliad Tillandsia recurvata as biomonitors of atmospheric nitrogen deposition. From fundamental research on the mechanisms behind plant responses to environmental change to applications in agriculture and biomonitoring, CAM ecophysiology will be essential in the Anthropocene.},
keywords = {anthropocene, arid, arid agriculture, atmospheric pollution, biomonitors, climate change, environmental productivity index, food security, nitrogen, nitrogen deposition, planetary boundaries},
pubstate = {published},
tppubtype = {article}
}
2021
Martínez, D. N.; de la Barrera, E.
Physiological screening of ruderal weed biomonitors of atmospheric nitrogen deposition Journal Article
In: Botanical Sciences, vol. 99, no. 3, pp. 573-587, 2021.
Abstract | Links | BibTeX | Tags: atmospheric pollution, biomass, chlorophyll, invasive species, nitrate reductase, nitrogen, plant nutrition, stable isotopes
@article{Martínez2021,
title = {Physiological screening of ruderal weed biomonitors of atmospheric nitrogen deposition},
author = {D. N. Martínez and E. de la Barrera },
url = {https://botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2789},
doi = {10.17129/botsci.2789},
year = {2021},
date = {2021-05-18},
journal = {Botanical Sciences},
volume = {99},
number = {3},
pages = {573-587},
abstract = {Background: Plants take up various species of reactive nitrogen and their different physiological responses to the increase of nitrogen availability can be useful in biomonitoring.
Questions: Does atmospheric nitrogen deposition affect the physiology of ruderal weeds? Which species are most responsive to the nitrogen deposition?
Studied species: Eleven ruderal weeds.
Study site and dates: Morelia, Michoacán, Mexico. 2019.
Methods: Under scenarios of 10, 20, 40 and 80 kg N ha-1year-1, we quantified plant responses of biomass production, nitrate reductase activity, chlorophyll content, fluorescence, δ15N, nitrogen and carbon content.
Results: Total biomass production increased with the rate of nitrogen deposition for Bidens pilosa, Chloris gayana, Lepidium virginicum, and Pennisetum setaceum, as chlorophyll content in B. pilosa, C. gayana, and L. virginicum. In turn, the below- to above-ground biomass ratio decreased for B. pilosa and C. gayana, as photosynthetic efficiency in C. gayana, L. virginicum, and Chloris pycnothrix. Nitrate reductase activity was only affected in L. virginicumm, C. gayana, and T. officinale.
With the exception of C. pycnothrix, the nitrogen content increased, while the carbon augmented in C. gayana, C. pycnothrix, and P. setaceum. The C/N ratio was reduced in B. pilosa, C. gayana, Chloris virgata, P. setaceum, and T. officinale. The δ15N was increased in B. pilosa, C. gayana, C. virgata and P. setaceum.
Conclusions: Bidens pilosa, C. gayana, L. virginicum, and P. setaceum were the species with more affected variables to nitrogen deposition, which could be useful in the biomonitoring.
},
keywords = {atmospheric pollution, biomass, chlorophyll, invasive species, nitrate reductase, nitrogen, plant nutrition, stable isotopes},
pubstate = {published},
tppubtype = {article}
}
Questions: Does atmospheric nitrogen deposition affect the physiology of ruderal weeds? Which species are most responsive to the nitrogen deposition?
Studied species: Eleven ruderal weeds.
Study site and dates: Morelia, Michoacán, Mexico. 2019.
Methods: Under scenarios of 10, 20, 40 and 80 kg N ha-1year-1, we quantified plant responses of biomass production, nitrate reductase activity, chlorophyll content, fluorescence, δ15N, nitrogen and carbon content.
Results: Total biomass production increased with the rate of nitrogen deposition for Bidens pilosa, Chloris gayana, Lepidium virginicum, and Pennisetum setaceum, as chlorophyll content in B. pilosa, C. gayana, and L. virginicum. In turn, the below- to above-ground biomass ratio decreased for B. pilosa and C. gayana, as photosynthetic efficiency in C. gayana, L. virginicum, and Chloris pycnothrix. Nitrate reductase activity was only affected in L. virginicumm, C. gayana, and T. officinale.
With the exception of C. pycnothrix, the nitrogen content increased, while the carbon augmented in C. gayana, C. pycnothrix, and P. setaceum. The C/N ratio was reduced in B. pilosa, C. gayana, Chloris virgata, P. setaceum, and T. officinale. The δ15N was increased in B. pilosa, C. gayana, C. virgata and P. setaceum.
Conclusions: Bidens pilosa, C. gayana, L. virginicum, and P. setaceum were the species with more affected variables to nitrogen deposition, which could be useful in the biomonitoring.
Díaz-Álvarez, E. A.; de la Barrera, E.
Influence of land-use on the C and N status of a C4 invasive grass in a semi-arid region: implications for biomonitoring Journal Article
In: Plants, vol. 10, pp. 942, 2021.
Abstract | Links | BibTeX | Tags: atmospheric pollution, biomonitoring, buffel grass, carbon, global ecology, invasive species, nitrogen, pollution, Sonora, stable isotopes
@article{Díaz-Álvarez2021bb,
title = {Influence of land-use on the C and N status of a C4 invasive grass in a semi-arid region: implications for biomonitoring},
author = {E. A. Díaz-Álvarez and E. de la Barrera },
url = {https://www.mdpi.com/2223-7747/10/5/942},
doi = {10.3390/plants10050942},
year = {2021},
date = {2021-05-09},
journal = {Plants},
volume = {10},
pages = {942},
abstract = {Biomonitoring of atmospheric pollution is an increasingly accepted practice. However, most existing biomonitors are usually epiphytic species from mesic environments. This work assessed the suitability of buffelgrass (Cenchrus ciliaris), an invasive C4 grass in northwestern Mexico, as a biomonitor, by means of the spatial distribution of the carbon and nitrogen content and isotopic signatures for grass samples collected from urban, agricultural, and natural areas throughout the state of Sonora. We found the highest tissue carbon content of 45.6% (on a dry weight basis) and highest nitrogen content of 3.31% for buffelgrass from the Yaqui Valley. We also found the lowest δ13C of −15.9‰, and the highest δ15N of 16.7‰ in the same region. In contrast, the lowest carbon and nitrogen content of 39.4 and 1.49% were found for Bahía de Kino and Río Sonora mountains, respectively. The lowest δ15N of 2.18‰ and the highest δ13C of −13.7‰ were measured for two remote locations. These results show the influence that pollutant emissions, including agriculture and transportation, have on elemental and isotopic composition of vegetation. Buffelgrass is most adequate for tracking carbon and nitrogen emissions in arid environments and for determining alterations on nitrogen soil reactions, as a first approximation for saturation.},
keywords = {atmospheric pollution, biomonitoring, buffel grass, carbon, global ecology, invasive species, nitrogen, pollution, Sonora, stable isotopes},
pubstate = {published},
tppubtype = {article}
}
2020
Díaz-Álvarez, E. A.; de la Barrera, E.; Barrios-Hernández, E. Y.; Arróniz-Crespo, M.
Morphophysiological screening of potential organisms for biomonitoring nitrogen deposition Journal Article
In: Ecological Indicators, vol. 108, pp. 105729, 2020, ISSN: 1470-160X.
Abstract | Links | BibTeX | Tags: atmospheric pollution, CAM, global change, Latin America, Mexico, neotropical, nitrogen
@article{Díaz-Álvarez2020,
title = {Morphophysiological screening of potential organisms for biomonitoring nitrogen deposition},
author = {E. A. Díaz-Álvarez and E. de la Barrera and E. Y. Barrios-Hernández and M. Arróniz-Crespo},
url = {https://www.sciencedirect.com/science/article/pii/S1470160X19307228},
doi = {10.1016/j.ecolind.2019.105729},
issn = {1470-160X},
year = {2020},
date = {2020-01-06},
journal = {Ecological Indicators},
volume = {108},
pages = {105729},
abstract = {The intensification of different anthropic activities has led to a doubling of the emitted reactive nitrogen species since the second half of the XX century, resulting in the increase of nitrogen deposition. This poses a major threat to global biodiversity. However, in developing countries the monitoring of atmospheric deposition has shown to be difficult. For these reasons, the aim of this study was to assess, by means of a greenhouse dose-response experiment, the biomonitoring potential of two mosses, Braunia secunda and Thuidium delicatulum, and two epiphytic bromeliads, Tillandsia recurvata and Tillandsia usneoides, which are widely distributed in Latin America. A significant increase of the phosphomonoesterase activity was observed for the mosses, particularly under a High-nitrogen treatment, a parameter that decreased for the bromeliads. In turn, the nitrate reductase activity decreased over the course of the experiment for the mosses, but it remained almost unchanged for both tillandsias. While the nitrogen content for the mosses increased, it fluctuated for the bromeliads. Braunia secunda became greener under the Low-nitrogen than under the other treatments, while the coloration for T. delicatulum turned to brown under all treatments. The tillandsias remained visually unchanged under all treatments. The mosses had a clear response to the simulated nitrogen deposition, with B. secunda being more tolerant than T. delicatulum. Neither tillandsia presented a clear response to the treatments. Thus, the moss B. secunda is a very suitable species for biomonitoring nitrogen deposition, while the other species evaluated were deemed unsuitable.},
keywords = {atmospheric pollution, CAM, global change, Latin America, Mexico, neotropical, nitrogen},
pubstate = {published},
tppubtype = {article}
}
2019
Díaz-Álvarez, E. A.; Felix, J. D.; de la Barrera, E.
Elemental and isotopic assessment for Colombian orchids from a montane cloud forest: a baseline for global environmental change Journal Article
In: Acta Physiologiae Plantarum, vol. 41, no. 6, pp. 99, 2019.
Abstract | Links | BibTeX | Tags: biodiversity, CAM, ecophysiology, epiphytes, global change, nitrogen, orchid, photosynthesis, stable isotopes
@article{Díaz-Álvarez2019,
title = {Elemental and isotopic assessment for Colombian orchids from a montane cloud forest: a baseline for global environmental change},
author = {E. A. Díaz-Álvarez and J. D. Felix and E. de la Barrera},
url = {https://rdcu.be/bCRG6},
doi = {10.1007/s11738-019-2893-y},
year = {2019},
date = {2019-05-16},
journal = {Acta Physiologiae Plantarum},
volume = {41},
number = {6},
pages = {99},
abstract = {Orchidaceae is the largest family of plants, reaching its maximum diversity in Colombia where 4000 species have been registered. One particular ecosystem with high diversity of orchids is the tropical montane cloud forest characterized by high humidity and low air temperatures. However, due to anthropic pressure such as land use change its area has been reduced. This is not the only anthropic disturbance that can affect the continuity of this forest and orchids, climate change and nitrogen deposition also become threats. By means of elemental composition and isotopic measurements of carbon and nitrogen, we determined the photosynthetic pathway for orchids from a tropical cloud forest in Colombia, for which, we also evaluated the nutritional status of nitrogen and its relationship with atmospheric deposition. We found 46 species from 18 genera; of these, 19 species were epiphytic, 9 lithophytic and 18 terrestrials. The carbon content was not significantly different among the species evaluated, averaging 46.4 ± 0.41% (dry weight). In turn, only one terrestrial orchid had a nitrogen content above 2.2%, averaged 1.4 ± 0.07% for the remaining 45 species. The δ13C that averaged − 28.1 ± 0.4‰ for 45 species was typical of C3 plants, while only one species, whose δ13C of 18.8‰ can be considered CAM. The δ15N values for 44 orchids were negative, in total they ranged from − 8.1 to 4.5‰. It can be concluded that the temperatures in this area are not yet high enough to produce a noticeable change in photosynthesis as evidenced by the carbon content of orchids, however, the expected rise would bring harmful consequences for these populations of orchids, especially when considering that these orchids were collected at the highest altitudinal range of the region. Moreover, the rates of nitrogen deposition are not high enough yet to leave a significant signal in the vegetation.},
keywords = {biodiversity, CAM, ecophysiology, epiphytes, global change, nitrogen, orchid, photosynthesis, stable isotopes},
pubstate = {published},
tppubtype = {article}
}
2018
Díaz-Álvarez, E. A.; de la Barrera, E.
Characterization of nitrogen deposition in a megalopolis by means of atmospheric biomonitors Journal Article
In: Scientific Reports, vol. 8, pp. 13569, 2018.
Abstract | Links | BibTeX | Tags: biomonitors, epiphytes, Mexico, mosses, nitrogen, pollution, stable isotopes, Tillandsia, urban ecology
@article{Díaz-Álvarez2018b,
title = {Characterization of nitrogen deposition in a megalopolis by means of atmospheric biomonitors},
author = {E. A. Díaz-Álvarez and E. de la Barrera },
url = {https://rdcu.be/6jWU},
doi = {10.1038/s41598-018-32000-5},
year = {2018},
date = {2018-09-11},
journal = {Scientific Reports},
volume = {8},
pages = {13569},
abstract = {An increase of nitrogen deposition resulting from human activities is not only a major threat for global biodiversity, but also for human health, especially in highly populated regions. It is thus important and in some instances legally mandated to monitor reactive nitrogen species in the atmosphere. The utilization of widely distributed biological species suitable for biomonitoring may be a good alternative. We assessed the suitability of an ensemble of atmospheric biomonitors of nitrogen deposition by means of an extensive sampling of a lichen, two mosses, and a bromeliad throughout the Valley of Mexico, whose population reaches 30 million, and subsequent measurements of nitrogen metabolism parameters. In all cases we found significant responses of nitrogen content, C:N ratio and the δ15N to season and site. In turn, the δ15N for the mosses responded linearly to the wet deposition. Also, the nitrogen content (R2 = 0.7), the C:N ratio (R2 = 0.6), and δ15N (R2 = 0.5) for the bromeliad had a linear response to NOx. However, the bromeliad was not found in sites with NOx concentrations exceeding 80 ppb, apparently of as a consequence of exceeding nitrogen. These biomonitors can be utilized in tandem to determine the status of atmospheric nitrogenous pollution in regions without monitoring networks for avoiding health problems for ecosystems and humans.},
keywords = {biomonitors, epiphytes, Mexico, mosses, nitrogen, pollution, stable isotopes, Tillandsia, urban ecology},
pubstate = {published},
tppubtype = {article}
}
Díaz-Álvarez, E. A.; Lindig-Cisneros, R.; de la Barrera, E.
Biomonitors of atmospheric nitrogen deposition: potential uses and limitations Journal Article
In: Conservation Physiology, vol. 6, pp. coy011, 2018.
Abstract | Links | BibTeX | Tags: biomonitors, ecosystem saturation, epiphytes, nitrogen, pollution, stable isotopes, urban ecology
@article{Díaz-Álvarez2018,
title = {Biomonitors of atmospheric nitrogen deposition: potential uses and limitations},
author = {E. A. Díaz-Álvarez and R. Lindig-Cisneros and E. de la Barrera },
doi = {10.1093/conphys/coy011},
year = {2018},
date = {2018-03-13},
journal = {Conservation Physiology},
volume = {6},
pages = {coy011},
abstract = {Atmospheric nitrogen deposition is the third largest cause of global biodiversity loss, with rates that have more than doubled over the past century. This is especially threatening for tropical regions where the deposition may soon exceed 25 kg of N ha–1 year–1, well above the threshold for physiological damage of 12-20 kg of N ha–1 year–1, depending on plant species and nitrogenous compound. It is thus urgent to monitor these regions where the most diverse biotas occur. However, most studies have been conducted in Europe, the USA, and recently in China. This review presents the case for the potential use of biological organisms to monitor nitrogen deposition, with emphasis on tropical plants. We first present an overview of atmospheric chemistry and the nitrogen metabolism of potential biomonitors, followed by a framework for monitoring nitrogen deposition based on the simultaneous use of various functional groups. In particular, the tissue nitrogen content responds to the rate of deposition, especially for mosses, whose nitrogen content increases by 1% per kilogram of N ha-1 year-1. The isotopic signature, δ15N, is a useful indicator of the nitrogen source, as the slightly negative values (e.g., 5‰) of plants from natural environments can become very negative (–11.2‰) in sites with agricultural and husbandry activities, but very positive (13.3‰) in urban environments with high vehicular activity. Mosses are good biomonitors for wet deposition and atmospheric epiphytes for dry deposition. In turn, the nitrogen saturation of ecosystems can be monitored with trees whose isotopic values increase with saturation. Although given ecophysiological limitations of different organisms, particular studies should be conducted in each area of interest to determine the most suitable biomonitors. Overall, biomonitors can provide an integrative approach for characterizing nitrogen deposition in regions where the deployment of automated instruments or passive monitoring is not feasible or can be complementary.
},
keywords = {biomonitors, ecosystem saturation, epiphytes, nitrogen, pollution, stable isotopes, urban ecology},
pubstate = {published},
tppubtype = {article}
}
2017
Díaz-Álvarez, E. A.; de la Barrera, E.
PREPRINT: Mapping pollution in a megalopolis: the case for atmospheric biomonitors of nitrogen deposition Journal Article
In: BioRxiv, vol. doi: 10.1101/118257, 2017, (This article is a preprint and has not been peer reviewed. ).
Abstract | Links | BibTeX | Tags: biomonitoring, ecophysiology, global change, lichen, megacities, mosses, nitrogen, Tillandsia, urban ecology
@article{Díaz-Álvarez2017b,
title = {PREPRINT: Mapping pollution in a megalopolis: the case for atmospheric biomonitors of nitrogen deposition},
author = {E. A. Díaz-Álvarez and E. de la Barrera },
url = {https://doi.org/10.1101/118257
},
doi = {10.1101/118257},
year = {2017},
date = {2017-03-19},
journal = {BioRxiv},
volume = {doi: 10.1101/118257},
abstract = {An increase of nitrogen deposition resulting from human activities is not only a major threat for global biodiversity, but also for human health, especially in highly populated regions. It is thus important and in some instances legally mandated to monitor reactive nitrogen species in the atmosphere. However, deployment of automated networks can be excessively costly for most cities so the utilization of widely distributed biological species suitable for biomonitoring may be a good alternative. The aim of this work was thus to assess the suitability of different atmospheric organisms as biomonitors of nitrogen deposition, by means of an extensive sampling of a lichen, two mosses, and one bromeliad throughout the Valley of Mexico, the basin where the megalopolis of Mexico City (population 20 million) is located, and subsequent measurements of nitrogen metabolism parameters. In all cases significant responses of nitrogen content, C:N ratio and 15N were found for the lichen Anaptychia sp. the mosses Grimmia sp. and Fabronia sp., and the bromeliad Tillandsia recurvata in response to season and collected site. In turn, 15N for the mosses responded linearly to the wet deposition (R2= 0.7 for Grimmia sp. and R2=0.2 for Fabronia sp.). Also, the nitrogen content (R2=0.7), the C:N ratio (R2=0.6), and 15N (R2=0.5) for the bromeliad had a linear response to NOx. However, latter species was not found in sites with NOx concentrations above 212 ppm. These biomonitors can be utilized in tandem to determine the status of nitrogenous pollution in regions without monitoring networks.},
note = {This article is a preprint and has not been peer reviewed. },
keywords = {biomonitoring, ecophysiology, global change, lichen, megacities, mosses, nitrogen, Tillandsia, urban ecology},
pubstate = {published},
tppubtype = {article}
}
2016
Díaz-Álvarez, E. A.
¿Qué tanto es tantito? Una breve historia del nitrógeno en la era industrial Online
Morelia, UNAM Campus (Ed.): 2016.
Links | BibTeX | Tags: ecophysiology, nitrogen, pollution, urban ecology
@online{Díaz-Álvarez2016,
title = {¿Qué tanto es tantito? Una breve historia del nitrógeno en la era industrial},
author = {E. A. Díaz-Álvarez},
editor = {UNAM Campus Morelia},
url = {http://agro.mx/wp-content/uploads/2017/08/diazalvarez-2016-BUM.pdf},
year = {2016},
date = {2016-12-31},
journal = {Boletín UNAM Morelia (BUM)},
volume = {64},
keywords = {ecophysiology, nitrogen, pollution, urban ecology},
pubstate = {published},
tppubtype = {online}
}
Díaz-Álvarez, E. A.; Reyes-García, C.; de la Barrera, E.
A δ15N assessment of nitrogen deposition for the endangered epiphytic orchid Laelia speciosa from a city and an oak forest in Mexico Journal Article
In: Journal of Plant Research, vol. 129, pp. 863–872, 2016.
Abstract | Links | BibTeX | Tags: conservation physiology, global change, moss, Neo-volcanic axis, nitrogen, orchid, pollution, stable isotopes, urban ecology
@article{Díaz-Álvarez2016b,
title = {A δ15N assessment of nitrogen deposition for the endangered epiphytic orchid Laelia speciosa from a city and an oak forest in Mexico},
author = {E. A. Díaz-Álvarez and C. Reyes-García and E. de la Barrera },
url = {http://rdcu.be/npd1
http://agro.mx/wp-content/uploads/2016/06/039-Diaz-Alvarez-laelia-rv3.pdf
http://link.springer.com/article/10.1007/s10265-016-0843-y},
doi = {10.1007/s10265-016-0843-y},
year = {2016},
date = {2016-06-09},
journal = {Journal of Plant Research},
volume = {129},
pages = {863–872},
abstract = {Atmospheric nitrogen deposition poses a major threat to global biodiversity. Tropical epiphytic plants are especially at risk given their reliance on atmospheric sources of nutrients. The leaf, pseudobulb, and root carbon and nitrogen content, C:N ratio, as well as the nitrogen isotopic composition were studied for individuals of Laelia speciosa from a city and from an oak forest in Mexico. The nitrogen content of leaves was similar between the city and the oak forest, reaching 1.3 ± 0.2 % (dry mass). The δ15N of leaves, pseudobulbs, and roots reached 5.6 ± 0.2 ‰ in the city, values found in sites exposed to industrial and vehicular activities. The δ15N for plant from the oak forest amounted to –3.1 ± 0.3 ‰, which is similar to values measured from sites with low industrial activities. Some orchids such as Laelia speciosa produce a single pseudobulb per year, i.e., a water and nutrient storage organ, so the interannual nitrogen deposition was studied by considering the ten most recent pseudobulbs for plants from either site formed between 2003 and 2012. The C:N ratio of the ten most recent pseudobulbs from the oak forest, as well as that of the pseudobulbs formed before 2010 for plants in the city were indistinguishable from each other, averaging 132.4 ± 6.5, while it was lower for the two most recent pseudobulbs in the city. The δ15N values of pseudobulbs from the oak forest averaged ‒4.4 ± 0.1 ‰ for the entire series. The δ15N ranged from 0.1 ± 1.6 ‰ for the oldest pseudobulb to 4.7 ± 0.2 ‰ for the pseudobulb formed in the city from 2008 onwards. Isotopic analysis and the C:N ratio for L. speciosa revealed that rates of nitrogen deposition were higher in the city than in the forest. The δ15N values of series of pseudobulbs showed that it is possible to track nitrogen deposition over multiple years.},
keywords = {conservation physiology, global change, moss, Neo-volcanic axis, nitrogen, orchid, pollution, stable isotopes, urban ecology},
pubstate = {published},
tppubtype = {article}
}
2015
Montejo-Mayo, W.; del-Val, E.; Gómez-Romero, M.; de la Barrera, E.; Lindig-Cisneros, R.
Interactions between dominant hydrophytic species of the wetlands of western Mexico mediated by fire and nitrite concentration Journal Article
In: Polibotánica, vol. 40, pp. 53-161, 2015.
Links | BibTeX | Tags: fire, nitrogen, Typha, wetland
@article{Montejo-Mayo2015,
title = {Interactions between dominant hydrophytic species of the wetlands of western Mexico mediated by fire and nitrite concentration},
author = {W. Montejo-Mayo and E. del-Val and M. Gómez-Romero and E. de la Barrera and R. Lindig-Cisneros},
url = {http://agro.mx/wp-content/uploads/2015/10/MontejoetalPolibotanica.pdf
http://www.polibotanica.mx/esp/num40/tema10esp.htm
},
year = {2015},
date = {2015-09-29},
journal = {Polibotánica},
volume = {40},
pages = {53-161},
keywords = {fire, nitrogen, Typha, wetland},
pubstate = {published},
tppubtype = {article}
}
Báez-Pérez, A. L.; Gómez-Romero, M.; Villegas, J.; de la Barrera, E.; Carreto-Montoya, L.; Lindig-Cisneros, R.
Inoculación con hongos micorrízicos y fertilización con urea de plantas de Fraxinus uhdei en acrisoles provenientes de sitios degradados Journal Article
In: Botanical Sciences, vol. 93, no. 3, pp. 501-508, 2015.
Links | BibTeX | Tags: erosion, Fraxinus, micorrhizae, nitrogen, Pisolitus, restoration, Rhizophagus
@article{Báez-Pérez2015,
title = {Inoculación con hongos micorrízicos y fertilización con urea de plantas de Fraxinus uhdei en acrisoles provenientes de sitios degradados},
author = {A. L. Báez-Pérez and M. Gómez-Romero and J. Villegas and E. de la Barrera and L. Carreto-Montoya and R. Lindig-Cisneros},
url = {http://agro.mx/wp-content/uploads/2015/09/032-Baez-Pérez-2015-BotSci-micorrizas.pdf
http://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/207/pdf_138
},
doi = {10.17129/botsci.207},
year = {2015},
date = {2015-09-15},
journal = {Botanical Sciences},
volume = {93},
number = {3},
pages = {501-508},
keywords = {erosion, Fraxinus, micorrhizae, nitrogen, Pisolitus, restoration, Rhizophagus},
pubstate = {published},
tppubtype = {article}
}
Díaz-Álvarez, E. A.; Lindig-Cisneros, R.; de la Barrera, E.
Responses to simulated nitrogen deposition by the neotropical epiphytic orchid Laelia speciosa Journal Article
In: PeerJ, vol. 3, pp. e1021, 2015.
Abstract | Links | BibTeX | Tags: acid rain, biodiversity, CAM, conservation physiology, d15N, global change, Laelia, neotropical, nitrogen, orchid, plant nutrition, pollution, stable isotopes
@article{Díaz-Álvarez2015,
title = {Responses to simulated nitrogen deposition by the neotropical epiphytic orchid Laelia speciosa},
author = {E. A. Díaz-Álvarez and R. Lindig-Cisneros and E. de la Barrera},
url = {https://peerj.com/articles/1021/
http://agro.mx/wp-content/uploads/2015/06/031-Díaz-Alvarez-et-al-2015-PeerJ-Laelia.pdf},
doi = {10.7717/peerj.1021},
year = {2015},
date = {2015-06-18},
journal = {PeerJ},
volume = {3},
pages = {e1021},
abstract = {Potential ecophysiological responses to nitrogen deposition, which is considered to be one of the leading causes for global biodiversity loss, were studied for the endangered endemic Mexican epiphytic orchid, Laelia speciosa, via a shadehouse dose-response experiment (doses were 2.5, 5, 10, 20, 40, and 80 kg N ha-1 yr-1) in order to assess the potential risk facing this orchid given impending scenarios of nitrogen deposition. Lower doses of nitrogen of up to 20 kg N ha yr–1, the dose that led to optimal plant performance, acted as fertilizer. For instance, the production of leaves and pseudobulbs were respectively 35% and 36% greater for plants receiving 20 kg N ha yr–1 than under any other dose. Also, the chlorophyll content and quantum yield peaked at 0.66 ± 0.03 g m-2 and 0.85 ± 0.01, respectively, for plants growing under the optimum dose. In contrast, toxic effects were observed at the higher doses of 40 and 80 kg N ha yr–1. The δ13C for leaves averaged –14.7 ± 0.2‰ regardless of the nitrogen dose. In turn, δ15N decreased as the nitrogen dose increased from 0.9 ±0.1‰ under 2.5 kg N ha-1 yr-1 to – 3.1 ± 0.2 ‰ under 80 kg N ha-1 yr-1, indicating that orchids preferentially assimilate NH4+ rather than NO3– of the solution under higher doses of nitrogen. Laelia speciosa showed a clear response to inputs of nitrogen, thus, increasing rates of atmospheric nitrogen deposition can pose an important threat for this species.},
keywords = {acid rain, biodiversity, CAM, conservation physiology, d15N, global change, Laelia, neotropical, nitrogen, orchid, plant nutrition, pollution, stable isotopes},
pubstate = {published},
tppubtype = {article}
}
2014
Díaz-Álvarez, E. A.; Lindig-Cisneros, R.; Reyes-García, C.; de la Barrera, E.
PREPRINT: Effects of simulated nitrogen deposition and a stable isotopic assessment for the neotropical epiphytic orchid Laelia speciosa Journal Article
In: PeerJ Preprints, vol. 2, pp. e771v1, 2014, ( NOT PEER-REVIEWED. This is a rapid communication before peer review.).
Links | BibTeX | Tags: CAM, epiphyte, global change, nitrogen, orchid, preprint
@article{Díaz-Álvarez2014,
title = {PREPRINT: Effects of simulated nitrogen deposition and a stable isotopic assessment for the neotropical epiphytic orchid Laelia speciosa},
author = {E. A. Díaz-Álvarez and R. Lindig-Cisneros and C. Reyes-García and E. de la Barrera},
url = {https://peerj.com/preprints/771/},
doi = {10.7287/peerj.preprints.771v1},
year = {2014},
date = {2014-12-31},
journal = {PeerJ Preprints},
volume = {2},
pages = {e771v1},
note = { NOT PEER-REVIEWED. This is a rapid communication before peer review.},
keywords = {CAM, epiphyte, global change, nitrogen, orchid, preprint},
pubstate = {published},
tppubtype = {article}
}
2013
Gómez-Romero, M.; de la Barrera, E.; Villegas, J.; Lindig-Cisneros, R.
Fertilización y asociación con especies pioneras herbáceas en el crecimiento de Pinus pseudostrobus Journal Article
In: Phyton, vol. 82, pp. 135-143, 2013.
Links | BibTeX | Tags: erosion, Lupinus, nitrogen, phosphorus, Pinus, pioneer, restoration ecology, temperate forests, understory
@article{Gómez-Romero2013,
title = {Fertilización y asociación con especies pioneras herbáceas en el crecimiento de Pinus pseudostrobus},
author = {M. Gómez-Romero and E. de la Barrera and J. Villegas and R. Lindig-Cisneros},
url = {http://www.revistaphyton.fund-romuloraggio.org.ar/vol82/GOMEZ_ROMERO.pdf},
year = {2013},
date = {2013-12-12},
journal = {Phyton},
volume = {82},
pages = {135-143},
keywords = {erosion, Lupinus, nitrogen, phosphorus, Pinus, pioneer, restoration ecology, temperate forests, understory},
pubstate = {published},
tppubtype = {article}
}
2012
Tenopala, J.; González, F. J.; de la Barrera, E.
Physiological responses of the green manure, Vicia sativa, to drought Journal Article
In: Botanical Sciences, vol. 90, no. 3, pp. 305-311, 2012.
Links | BibTeX | Tags: agroecology, drought, isohydric, nitrogen, Raman, Vicia
@article{Tenopala2012,
title = {Physiological responses of the green manure, Vicia sativa, to drought },
author = {J. Tenopala and F. J. González and E. de la Barrera},
url = {http://www.scielo.org.mx/pdf/bs/v90n3/v90n3a6.pdf},
year = {2012},
date = {2012-03-01},
journal = {Botanical Sciences},
volume = {90},
number = {3},
pages = {305-311},
keywords = {agroecology, drought, isohydric, nitrogen, Raman, Vicia},
pubstate = {published},
tppubtype = {article}
}
Orozco-Martínez, R.; del-Val, E.; Lindig-Cisneros, R.; Paz, H.; Quesada, M.; de la Barrera, E.
Evaluation of three organic fertilizers for growing the widely cultivated crop Cucurbita pepo L. Journal Article
In: African Journal of Agricultural Research, vol. 7, no. 7, pp. 1087-1097, 2012.
Links | BibTeX | Tags: agriculture, agroecology, compost, crop, Cucurbita, Eichornia, invasive species, nitrogen
@article{Orozco-Martínez2012,
title = {Evaluation of three organic fertilizers for growing the widely cultivated crop Cucurbita pepo L.},
author = {R. Orozco-Martínez and E. del-Val and R. Lindig-Cisneros and H. Paz and M. Quesada and E. de la Barrera },
url = {http://www.academicjournals.org/journal/AJAR/article-abstract/7FF8F8B44821},
year = {2012},
date = {2012-02-19},
journal = {African Journal of Agricultural Research},
volume = {7},
number = {7},
pages = {1087-1097},
keywords = {agriculture, agroecology, compost, crop, Cucurbita, Eichornia, invasive species, nitrogen},
pubstate = {published},
tppubtype = {article}
}
2010
Escutia-Lara, Y.; de la Barrera, E.; Martínez-delaCruz, Y.; Lindig-Cisneros, R.
Respuesta a la adición de nitrógeno y fósforo en el crecimiento de Typha domingensis y Schoenoplectus americanus Journal Article
In: Boletín de la Sociedad Botánica de México, vol. 87, pp. 83-87, 2010.
Links | BibTeX | Tags: nitrogen, nutrition, phosphorus, Schoenoplectus, Typha, wetland
@article{Escutia-Lara2010,
title = {Respuesta a la adición de nitrógeno y fósforo en el crecimiento de Typha domingensis y Schoenoplectus americanus},
author = {Y. Escutia-Lara and E. de la Barrera and Y. Martínez-delaCruz and R. Lindig-Cisneros},
url = {http://www.scielo.org.mx/scielo.php?pid=S0366-21282010000200007&script=sci_arttext},
year = {2010},
date = {2010-01-01},
journal = {Boletín de la Sociedad Botánica de México},
volume = {87},
pages = {83-87},
keywords = {nitrogen, nutrition, phosphorus, Schoenoplectus, Typha, wetland},
pubstate = {published},
tppubtype = {article}
}
2005
de la Barrera, E.; Andrade, J. L.
Challenges to plant megadiversity: how environmental physiology can help Journal Article
In: New Phytologist, vol. 167, pp. 5-8, 2005.
Links | BibTeX | Tags: acclimation, agriculture, cactus, climate change, conservation, ecophysiology, legume, nitrogen, plant diversity, public policy, seed, stable isotopes, tropical forest
@article{delaBarrera2005b,
title = {Challenges to plant megadiversity: how environmental physiology can help},
author = {E. de la Barrera and J. L. Andrade},
url = {http://agro.mx/wp-content/uploads/2016/06/012-De-la-Barrera-Andrade-2005-New-Phytol.pdf},
year = {2005},
date = {2005-05-01},
journal = {New Phytologist},
volume = {167},
pages = {5-8},
keywords = {acclimation, agriculture, cactus, climate change, conservation, ecophysiology, legume, nitrogen, plant diversity, public policy, seed, stable isotopes, tropical forest},
pubstate = {published},
tppubtype = {article}
}
2004
Nobel, P. S.; de la Barrera, E.
CO2 uptake by the cultivated hemiepiphytic cactus, Hylocereus undatus Journal Article
In: Annals of Applied Biology, vol. 144, pp. 1-8, 2004.
Links | BibTeX | Tags: abscisic acid, agriculture, cactus, CO2, cultivation, Hylocereus, nitrogen, photosynthesis, pitahaya, temperature, tropical forest, water
@article{Nobel2004,
title = {CO2 uptake by the cultivated hemiepiphytic cactus, Hylocereus undatus},
author = {P. S. Nobel and E. de la Barrera},
url = {http://agro.mx/wp-content/uploads/2015/09/010-Nobel-De-la-Barrera-2004-Ann-Appl-Biol.pdf},
year = {2004},
date = {2004-04-04},
journal = {Annals of Applied Biology},
volume = {144},
pages = {1-8},
keywords = {abscisic acid, agriculture, cactus, CO2, cultivation, Hylocereus, nitrogen, photosynthesis, pitahaya, temperature, tropical forest, water},
pubstate = {published},
tppubtype = {article}
}
2002
Nobel, P. S.; de la Barrera, E.
Nitrogen relations for net CO2 uptake by the cultivated hemiepiphytic cactus, Hylocereus undatus Journal Article
In: Scientia Horticulturae, vol. 96, pp. 281-292, 2002.
Links | BibTeX | Tags: cactus, CAM, chlorophyll, CO2, Hoagland solution, Hylocereus, nitrogen, nutrition, pitahaya
@article{Nobel2002b,
title = {Nitrogen relations for net CO2 uptake by the cultivated hemiepiphytic cactus, Hylocereus undatus},
author = {P. S. Nobel and E. de la Barrera },
url = {http://agro.mx/wp-content/uploads/2016/06/004-Nobel-De-la-Barrera-2002-Sci-Hort.pdf},
year = {2002},
date = {2002-04-01},
journal = {Scientia Horticulturae},
volume = {96},
pages = {281-292},
keywords = {cactus, CAM, chlorophyll, CO2, Hoagland solution, Hylocereus, nitrogen, nutrition, pitahaya},
pubstate = {published},
tppubtype = {article}
}