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}
}
2011
Gudiño, W.; Casas, A.; Valiente-Banuet, A.; Orozco-Martínez, R.; de la Barrera, E.
In: Journal of the Professional Association for Cactus Development, vol. 13, pp. 88-101, 2011.
Links | BibTeX | Tags: anthesis, cactus, climate, climate change, drought, energy balance, light, microenvironment, nectar flower, photosynthesis, Polaskia, Tehuacán, temperature
@article{Gudiño2011,
title = {Climate and microenvironmental parameters affecting anthesis and nectar secretion for Polaskia chende and P. chichipe, endemic columnar cacti from the Tehuacán Valley, Puebla},
author = {W. Gudiño and A. Casas and A. Valiente-Banuet and R. Orozco-Martínez and E. de la Barrera},
url = {http://www.jpacd.org/?modulo=JS&ID=14},
year = {2011},
date = {2011-02-02},
journal = {Journal of the Professional Association for Cactus Development},
volume = {13},
pages = {88-101},
keywords = {anthesis, cactus, climate, climate change, drought, energy balance, light, microenvironment, nectar flower, photosynthesis, Polaskia, Tehuacán, temperature},
pubstate = {published},
tppubtype = {article}
}
2007
Gallardo-Vásquez, J. C.; de la Barrera, E.
Environmental and ontogenetic influences on growth, photosynthesis, and survival for young pitayo (Stenocereus queretaroensis) seedlings Journal Article
In: Journal of the Professional Association for Cactus Development, vol. 9, pp. 118-135, 2007.
Links | BibTeX | Tags: acclimation, agroecology, domestication, growth, nurse plants, photosynthesis, pitayo, reproductive ecophysiology, seed, seedling, shade, Stenocereus
@article{Gallardo-Vásquez2007,
title = {Environmental and ontogenetic influences on growth, photosynthesis, and survival for young pitayo (Stenocereus queretaroensis) seedlings},
author = {J. C. Gallardo-Vásquez and E. de la Barrera },
url = {http://www.jpacd.org/downloads/vol9/v9p118-135.pdf},
year = {2007},
date = {2007-04-04},
journal = {Journal of the Professional Association for Cactus Development},
volume = {9},
pages = {118-135},
keywords = {acclimation, agroecology, domestication, growth, nurse plants, photosynthesis, pitayo, reproductive ecophysiology, seed, seedling, shade, Stenocereus},
pubstate = {published},
tppubtype = {article}
}
de la Barrera, E.; Castellanos, A. E.
High temperature effects on gas exchange for the invasive buffel grass (Pennisetum ciliare [L.] Link) Journal Article
In: Weed Biology and Management, vol. 7, pp. 128-131, 2007.
Links | BibTeX | Tags: acclimation, buffel grass, Cenchrus, CO2, cultivation, forage, global change, invasive species, Pennisetum, photosynthesis, shade, Sonoran Desert, temperature, transpiration, water
@article{delaBarrera2007,
title = {High temperature effects on gas exchange for the invasive buffel grass (Pennisetum ciliare [L.] Link)},
author = {E. de la Barrera and A. E. Castellanos},
url = {http://agro.mx/wp-content/uploads/2016/06/014-De-la-Barrera-Castellanos-2007-WBM.pdf},
year = {2007},
date = {2007-01-01},
journal = {Weed Biology and Management},
volume = {7},
pages = {128-131},
keywords = {acclimation, buffel grass, Cenchrus, CO2, cultivation, forage, global change, invasive species, Pennisetum, photosynthesis, shade, Sonoran Desert, temperature, transpiration, water},
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}
}
de la Barrera, E.; Nobel, P. S.
Carbon and water relations for developing fruits of Opuntia ficus-indica (L.) Miller, including effects of drought and gibberellic acid Journal Article
In: Journal of Experimental Botany, vol. 55, no. 397, pp. 719-729, 2004.
Links | BibTeX | Tags: abscisic acid, cactus, CAM, carbon, drought, fruit, gibberellic acid, opuntia, photosynthesis, water
@article{delaBarrera2004b,
title = {Carbon and water relations for developing fruits of Opuntia ficus-indica (L.) Miller, including effects of drought and gibberellic acid},
author = {E. de la Barrera and P. S. Nobel },
url = {http://agro.mx/wp-content/uploads/2016/06/009-De-la-Barrera-Nobel-2004-J-Exp-Bot.pdf},
year = {2004},
date = {2004-03-03},
journal = {Journal of Experimental Botany},
volume = {55},
number = {397},
pages = {719-729},
keywords = {abscisic acid, cactus, CAM, carbon, drought, fruit, gibberellic acid, opuntia, photosynthesis, water},
pubstate = {published},
tppubtype = {article}
}