Plastic adjustments in xylem vessel traits to drought events in three Cedrela species from Peruvian Tropical Andean forests

• DOI: 10.1038/s41598-022-25645-w
• Publication Date: 2022-12-07T11:10:26Z
• Authors: Ernesto C. Rodríg...; M. Eugenia Ferrero; Ingrith Acevedo-Vega; Doris B. Crispin-...; Ginette Ticse-Ota...; Edilson J. Requen...
• Keywords: Cloud forest; Swietenia macrophylla

Abstract Cedrela species occur within the Tropical montane cloud forest (TMCF) and rainforest in North America (Mexico), Central South America. We assessed hypothesis that functional xylem hydraulic architecture might be influenced by specific climatic variations. investigated effect of climate on tree-ring width vessel traits (diameter, density, vulnerability index diameter) three relict-endemic threatened ( fissilis , C . nebulosa angustifolia ) inhabiting Peruvian Andean forests. All showed a significant reduction radial growth adjusted trait linked with temperature, precipitation, evapotranspiration. Ring-width adaptation species, crucial to understanding rough indication plant’s ability withstand drought-induced embolism or cavitation. Our results provide evidence for mechanisms determine wood anatomical functionality variation drought responses. Therefore, changing frequency intensity future events exceed adaptive limits TMCF tree resulting substantial species.