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Epiphytic orchids Stanhopea tigrina and Prosthechea cochleata are differentially affected by drought in a subtropical cloud forest

dc.contributor.authorGuevara Pérez, Cecilia Isabel
dc.contributor.authorDelgado Sánchez, Pablo
dc.contributor.authorTorres Castillo, Jorge Ariel
dc.contributor.authorFlores Rivas, Joel David
dc.contributor.authorMendieta Leiva, Glenda
dc.contributor.authorDe la Rosa Manzano, Edilia
dc.date.accessioned2020-03-12T23:37:05Z
dc.date.available2020-03-12T23:37:05Z
dc.date.issued2019
dc.identifier.citationGuevara-Perez, C.I., Delgado-Sánchez, P., Torres-Castillo, J.A., Flores-Rivas, J.D., Mendieta-Leiva, G., & Rosa-Manzano, E.D. (2019). Epiphytic orchids Stanhopea tigrina and Prosthechea cochleata are differentially affected by drought in a subtropical cloud forest. Photosynthetica, 57(4):1053-1065 DOI: 10.32615/ps.2019.123
dc.identifier.urihttp://hdl.handle.net/11627/5312
dc.description.abstract"We investigated the physiological responses of two epiphytic orchids under three light regimes of 20, 50, and 70% of total daily radiation under drought and rewatering conditions. Stanhopea tigrina was the one more affected because it exhibited strong photoinhibition and reduction of both electron transport rate and nocturnal acidity under drought and high radiation. However, this species maintained relatively high relative water content (RWC) values and underwent osmotic adjustment during the drought period and recovered photosynthetic variables during watered period. Prosthechea cochleata maintained similar water and photosynthetic responses to light conditions during the drought period and was more tolerant than S. tigrina. Principal component analysis provided evidence that water variables, such as RWC and succulence of both leaf and pseudobulb, were the most important variables for both species. Our results suggest that S. tigrina is more sensitive to drought than P. cochleata, and could be more affected by global warming."
dc.publisherInstitute of Experimental Botany CAS
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectChlorophyll fluorescence
dc.subjectMexico
dc.subjectOrchidaceae
dc.subjectPhotosynthesis
dc.subjectWater stress
dc.subject.classificationBIOLOGÍA VEGETAL (BOTÁNICA)
dc.titleEpiphytic orchids Stanhopea tigrina and Prosthechea cochleata are differentially affected by drought in a subtropical cloud forest
dc.typearticle
dc.identifier.doihttp://doi.org/10.32615/ps.2019.123
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional