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Ecofisiología agraria
Ecofisiología agraria

Ecofisiología agraria

Érick de la Barrera — Universidad Nacional Autónoma de México

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Integrantes

Investigador titular

foto_edlb
Erick de la Barrera Montppellier

Estudiantes

deysi
D. Nayeli Martínez Vázquez
Posgrado en Ciencias Biológicas

Graduados recientes

Dr. Edison Díaz Álvarez
Edison A. Díaz Álvarez

 

cristobal
Cristóbal M. Márquez Prado

 

Egresados


Instituto de Investigaciones en Ecosistemas y Sustentabilidad

Laboratorio de Ecofisiología Agraria
3er. Piso, Edificio Sur
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM Campus Morelia, Antigua Carretera a Pátzcuaro 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México.
(Ver mapa)

Contacto:
Dr. Erick de la Barrera Montppellier
T. +52 (443) 322-3810; (55) 5623-2810
delabarrera@unam.mx
Twitter: @erickdlbm
Blog: Ecolibrios.com
Facebook

UNAM La universidad de la nación.

Publicaciones recientes

Díaz-Álvarez, E A; de la Barrera, E

Isotopic biomonitoring of anthropic carbon emissions in a megalopolis Journal Article

PeerJ, 8 , pp. e9283, 2020, ISSN: 2167-8359.

Abstract | Links | BibTeX

@article{Díaz-Álvarez2020b,
title = {Isotopic biomonitoring of anthropic carbon emissions in a megalopolis},
author = {E. A. Díaz-Álvarez and E. de la Barrera},
doi = {10.7717/peerj.9283},
issn = {2167-8359},
year = {2020},
date = {2020-05-29},
journal = {PeerJ},
volume = {8},
pages = {e9283},
abstract = {Atmospheric pollution has become a serious threat for human health and the environment. However, the deployment, operation, and maintenance of monitoring networks can represent a high cost for local governments. In certain locations, the use of naturally occurring plants for monitoring pollution can be a useful supplement of existing monitoring networks, and even provide information when other types of monitoring are lacking. In this work, we i) determined the tissue carbon content and the δ13C values for the epiphytic CAM bromeliad Tillandsia recurvata and the relationship of both parameters with the existing CO concentrations in the Valley of Mexico basin, and ii) mapped the spatial distribution of such elemental and isotopic composition for this plant within the basin, in order to assess its potential as an atmospheric biomonitor of carbon monoxide, a pollutant with important repercussions on public health. The CO concentrations in the basin ranged from 0.41 ppm at rural locations to 0.81 ppm at urban sites. The carbon content of T. recurvata which averaged 42.9 ± 0.34% (dry weight), was not influenced by the surrounding CO concentration. In contrast, the δ13C depended on the sites where the plants were collected. For example, the values were ‒13.21‰ in rural areas and as low as –17.47‰ in an urban site. Indeed, the isotopic values had a positive linear relationship with the atmospheric CO concentrations. Given the close relationship observed between the isotopic composition of T. recurvata with the CO concentrations in the Valley of Mexico, the δ13C values can be useful for the detection of atmospheric carbonaceous emissions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

Close

Atmospheric pollution has become a serious threat for human health and the environment. However, the deployment, operation, and maintenance of monitoring networks can represent a high cost for local governments. In certain locations, the use of naturally occurring plants for monitoring pollution can be a useful supplement of existing monitoring networks, and even provide information when other types of monitoring are lacking. In this work, we i) determined the tissue carbon content and the δ13C values for the epiphytic CAM bromeliad Tillandsia recurvata and the relationship of both parameters with the existing CO concentrations in the Valley of Mexico basin, and ii) mapped the spatial distribution of such elemental and isotopic composition for this plant within the basin, in order to assess its potential as an atmospheric biomonitor of carbon monoxide, a pollutant with important repercussions on public health. The CO concentrations in the basin ranged from 0.41 ppm at rural locations to 0.81 ppm at urban sites. The carbon content of T. recurvata which averaged 42.9 ± 0.34% (dry weight), was not influenced by the surrounding CO concentration. In contrast, the δ13C depended on the sites where the plants were collected. For example, the values were ‒13.21‰ in rural areas and as low as –17.47‰ in an urban site. Indeed, the isotopic values had a positive linear relationship with the atmospheric CO concentrations. Given the close relationship observed between the isotopic composition of T. recurvata with the CO concentrations in the Valley of Mexico, the δ13C values can be useful for the detection of atmospheric carbonaceous emissions.

Close

  • doi:10.7717/peerj.9283

Close

Cooke, S J; Madliger, C L; Cramp, R L; Beardall, J; Burness, G P; Chown, S L; Clark, T D; Dantzer, B; de la Barrera, E; Fangue, N A; Franklin, C F; Fuller, A; Hawkes, L A; Hultine, K R; Hunt, K E; Love, O P; MacMillan, H A; Mandelman, J W; Mark, F C; Martin, L B; Newmann, A E M; Nicotra, A B; Robinson, S A; Ropert-Courdet, Y; Rummer, J L; Seebacher, F; Todgham, A E

Reframing conservation physiology to be more inclusive, integrative, relevant and forward-looking: reflections and a horizon scan Journal Article

Conservation Physiology, 8 (1), pp. coaa016, 2020.

Abstract | Links | BibTeX

@article{Cooke2020,
title = {Reframing conservation physiology to be more inclusive, integrative, relevant and forward-looking: reflections and a horizon scan},
author = {S. J. Cooke and C. L. Madliger and R. L. Cramp and J. Beardall and G. P. Burness and S. L. Chown and T. D. Clark and B. Dantzer and E. de la Barrera and N. A. Fangue and C. F. Franklin and A. Fuller and L. A. Hawkes and K. R. Hultine and K. E. Hunt and O. P. Love and H. A. MacMillan and J. W. Mandelman and F. C. Mark and L. B. Martin and A. E. M. Newmann and A. B. Nicotra and S. A. Robinson and Y. Ropert-Courdet and J. L. Rummer and F. Seebacher and A.E. Todgham},
url = {https://academic.oup.com/conphys/article/8/1/coaa016/5815645},
doi = {10.1093/conphys/coaa016},
year = {2020},
date = {2020-04-04},
journal = {Conservation Physiology},
volume = {8},
number = {1},
pages = {coaa016},
abstract = {Applying physiological tools, knowledge and concepts to understand conservation problems (i.e. conservation physiology) has become commonplace and confers an ability to understand mechanistic processes, develop predictive models and identify cause-and-effect relationships. Conservation physiology is making contributions to conservation solutions; the number of ‘success stories’ is growing, but there remain unexplored opportunities for which conservation physiology shows immense promise and has the potential to contribute to major advances in protecting and restoring biodiversity. Here, we consider how conservation physiology has evolved with a focus on reframing the discipline to be more inclusive and integrative. Using a ‘horizon scan’, we further explore ways in which conservation physiology can be more relevant to pressing conservation issues of today (e.g. addressing the Sustainable Development Goals; delivering science to support the UN Decade on Ecosystem Restoration), as well as more forward-looking to inform emerging issues and policies for tomorrow. Our horizon scan provides evidence that, as the discipline of conservation physiology continues to mature, it provides a wealth of opportunities to promote integration, inclusivity and forward-thinking goals that contribute to achieving conservation gains. To advance environmental management and ecosystem restoration, we need to ensure that the underlying science (such as that generated by conservation physiology) is relevant with accompanying messaging that is straightforward and accessible to end users.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

Close

Applying physiological tools, knowledge and concepts to understand conservation problems (i.e. conservation physiology) has become commonplace and confers an ability to understand mechanistic processes, develop predictive models and identify cause-and-effect relationships. Conservation physiology is making contributions to conservation solutions; the number of ‘success stories’ is growing, but there remain unexplored opportunities for which conservation physiology shows immense promise and has the potential to contribute to major advances in protecting and restoring biodiversity. Here, we consider how conservation physiology has evolved with a focus on reframing the discipline to be more inclusive and integrative. Using a ‘horizon scan’, we further explore ways in which conservation physiology can be more relevant to pressing conservation issues of today (e.g. addressing the Sustainable Development Goals; delivering science to support the UN Decade on Ecosystem Restoration), as well as more forward-looking to inform emerging issues and policies for tomorrow. Our horizon scan provides evidence that, as the discipline of conservation physiology continues to mature, it provides a wealth of opportunities to promote integration, inclusivity and forward-thinking goals that contribute to achieving conservation gains. To advance environmental management and ecosystem restoration, we need to ensure that the underlying science (such as that generated by conservation physiology) is relevant with accompanying messaging that is straightforward and accessible to end users.

Close

  • https://academic.oup.com/conphys/article/8/1/coaa016/5815645
  • doi:10.1093/conphys/coaa016

Close

Briones, O; Reyes-García, C; Díaz-Álvarez, E A; Tinoco-Ojanguren, C; de la Barrera, E; Andrade, J L

A few islands of preliminary research among a sea of unknown: moving plant ecophysiology forward in megadiverse countries Journal Article

Botanical Sciences, 98 (98), pp. 212-216, 2020.

Abstract | Links | BibTeX

@article{Briones2020,
title = {A few islands of preliminary research among a sea of unknown: moving plant ecophysiology forward in megadiverse countries},
author = {O. Briones and C. Reyes-García and E. A. Díaz-Álvarez and C. Tinoco-Ojanguren and E. de la Barrera and J. L. Andrade},
url = {http://botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2546},
doi = {10.17129/botsci.2546},
year = {2020},
date = {2020-03-11},
journal = {Botanical Sciences},
volume = {98},
number = {98},
pages = {212-216},
abstract = {A principal intention of ecological sciences is to explain biodiversity: why are some species and not others found in certain places. As an experimental science, plant ecophysiology focuses on the interactions among plants, the environment, and other biological species. In this context, the VII Mexican Ecology Congress focused on "addressing the complexity of nature." Some examples of how ecophysiology can address said complexity were discussed during the symposium.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

Close

A principal intention of ecological sciences is to explain biodiversity: why are some species and not others found in certain places. As an experimental science, plant ecophysiology focuses on the interactions among plants, the environment, and other biological species. In this context, the VII Mexican Ecology Congress focused on "addressing the complexity of nature." Some examples of how ecophysiology can address said complexity were discussed during the symposium.

Close

  • http://botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2546
  • doi:10.17129/botsci.2546

Close

Martínez, D N; de la Barrera, E

Germination ecophysiology for three peri-urban ephemeral weeds Journal Article

La Granja (Revista de Ciencias de la Vida), 31 , pp. 03, 2020.

Abstract | Links | BibTeX

@article{Martínez2020,
title = {Germination ecophysiology for three peri-urban ephemeral weeds},
author = {D. N. Martínez and E. de la Barrera },
url = {https://lagranja.ups.edu.ec/index.php/granja/article/view/31.2020.03},
doi = {10.17163/lgr.n31.2020.03},
year = {2020},
date = {2020-02-28},
journal = {La Granja (Revista de Ciencias de la Vida)},
volume = {31},
pages = {03},
abstract = {The environmental requirements leading to germination were determined by three common species found during the June-October 2009 rainy season in a peri-urban site from Morelia, Michoacán, Mexico, where the construction of a campus of Universidad Nacional Autónoma de México (UNAM) was underway. In particular, the responses were evaluated in the laboratory to low-temperature stratification, as well as day/night air temperature, and water potential for the native Onagraceae Lopezia racemosa and Ludwigia octovalvis, and the exotic Polygonaceae Rumex crispus. Low-temperature stratification had no effect on germination by L. racemosa, for which maximum germination averaging 88% was optimal at 25/15 and 30/20 ºC. Germination at 21 d was halved at –0.5 MPa and completely inhibited at –1.0 MPa. The seeds of L. octovalvis were also insensitive to low temperature stratification and their germination never exceeded 70%, with the two highest temperatures of 30/20 and 35/25 ºC being the optimum. For this species germination was maximal at 0.0 MPa, decreasing significantly under every treatment with a minimum germination of 21% for seeds incubated at –0.1 MPa. Germination for the exotic R. crispus was delayed by low-temperature stratification, although all its seeds germinated regardless of the temperature or water potential treatment. While the environmental requirements for germination of ephemeral species often match the typical climate of their growing season, the differential responses found for the species considered in the present study provide some insight into the mechanisms leading to changes in species composition for communities from disturbed environments, including the displacement of native species and the proliferation of exotic, potentially invasive plants. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}

Close

The environmental requirements leading to germination were determined by three common species found during the June-October 2009 rainy season in a peri-urban site from Morelia, Michoacán, Mexico, where the construction of a campus of Universidad Nacional Autónoma de México (UNAM) was underway. In particular, the responses were evaluated in the laboratory to low-temperature stratification, as well as day/night air temperature, and water potential for the native Onagraceae Lopezia racemosa and Ludwigia octovalvis, and the exotic Polygonaceae Rumex crispus. Low-temperature stratification had no effect on germination by L. racemosa, for which maximum germination averaging 88% was optimal at 25/15 and 30/20 ºC. Germination at 21 d was halved at –0.5 MPa and completely inhibited at –1.0 MPa. The seeds of L. octovalvis were also insensitive to low temperature stratification and their germination never exceeded 70%, with the two highest temperatures of 30/20 and 35/25 ºC being the optimum. For this species germination was maximal at 0.0 MPa, decreasing significantly under every treatment with a minimum germination of 21% for seeds incubated at –0.1 MPa. Germination for the exotic R. crispus was delayed by low-temperature stratification, although all its seeds germinated regardless of the temperature or water potential treatment. While the environmental requirements for germination of ephemeral species often match the typical climate of their growing season, the differential responses found for the species considered in the present study provide some insight into the mechanisms leading to changes in species composition for communities from disturbed environments, including the displacement of native species and the proliferation of exotic, potentially invasive plants.

Close

  • https://lagranja.ups.edu.ec/index.php/granja/article/view/31.2020.03
  • doi:10.17163/lgr.n31.2020.03

Close

de la Barrera, E; Aguirre-Pérez, I A; Ibarra-Otero, B A; Villalvazo-Figueroa, E A; Díaz-Álvarez, E A

No country for new seeds: Food and environmental security implications of Mexico's intended ban on GM crops Journal Article

Transgenic Research, 29 (1), pp. 156-170, 2020.

Abstract | Links | BibTeX

@article{delaBarrera2020b,
title = {No country for new seeds: Food and environmental security implications of Mexico's intended ban on GM crops},
author = {E. de la Barrera and I. A. Aguirre-Pérez and B. A. Ibarra-Otero and E. A. Villalvazo-Figueroa and E. A. Díaz-Álvarez},
url = {https://link.springer.com/article/10.1007/s11248-019-00186-7},
doi = {10.1007/s11248-019-00186-7},
year = {2020},
date = {2020-02-03},
journal = {Transgenic Research},
volume = {29},
number = {1},
pages = {156-170},
abstract = {An intended generalized ban on the "introduction and use of transgenic seeds" has been announced by the Mexican government, which, unlike the other agricultural programs under this administration, lacks a budget and rules of operation. In this policy brief we consider scenarios of implementing such an intended ban, de-regulating the use of genetically modified crops, or an intermediate scenario under the existing biosafety regulations. We recommend maintaining the status quo given its potential contributions to food and environmental security, in addition to a better economic outlook. However, a greater impulse needs to be given by the federal government to foment the domestic development of GM crops that are pertinent for Mexican agri-food needs, in addition to funding the development and implementation of various agro-ecological practices that increase biodiversity in food production units.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

Close

An intended generalized ban on the "introduction and use of transgenic seeds" has been announced by the Mexican government, which, unlike the other agricultural programs under this administration, lacks a budget and rules of operation. In this policy brief we consider scenarios of implementing such an intended ban, de-regulating the use of genetically modified crops, or an intermediate scenario under the existing biosafety regulations. We recommend maintaining the status quo given its potential contributions to food and environmental security, in addition to a better economic outlook. However, a greater impulse needs to be given by the federal government to foment the domestic development of GM crops that are pertinent for Mexican agri-food needs, in addition to funding the development and implementation of various agro-ecological practices that increase biodiversity in food production units.

Close

  • https://link.springer.com/article/10.1007/s11248-019-00186-7
  • doi:10.1007/s11248-019-00186-7

Close

Temas de investigación
acclimation agriculture biophysics buffel grass climate change CO2 cultivation drought ecophysiology flower fruit germination global change Hylocereus invasive species nectar nitrogen orchid photosynthesis reproductive ecophysiology seed shade stable isotopes temperature tropical forest water
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