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@article{1820058, author = {Jupa, Radek and Krabičková, Dita and Plichta, Roman and Mayr, Stefan and Gloser, Vít}, article_number = {4}, doi = {http://dx.doi.org/10.1111/ppl.13435}, keywords = {climate-change; hydraulic architecture; embolism resistance; pit characters; water-deficit; wood anatomy; Xylem; vessel; temperate}, language = {eng}, issn = {0031-9317}, journal = {Physiologia Plantarum}, title = {Do angiosperm tree species adjust intervessel lateral contact in response to soil drought?}, url = {https://onlinelibrary.wiley.com/doi/10.1111/ppl.13435}, volume = {172}, year = {2021} }
TY - JOUR ID - 1820058 AU - Jupa, Radek - Krabičková, Dita - Plichta, Roman - Mayr, Stefan - Gloser, Vít PY - 2021 TI - Do angiosperm tree species adjust intervessel lateral contact in response to soil drought? JF - Physiologia Plantarum VL - 172 IS - 4 SP - 2048-2058 EP - 2048-2058 PB - Wiley SN - 00319317 KW - climate-change KW - hydraulic architecture KW - embolism resistance KW - pit characters KW - water-deficit KW - wood anatomy KW - Xylem KW - vessel KW - temperate UR - https://onlinelibrary.wiley.com/doi/10.1111/ppl.13435 N2 - During soil drought (i.e. limited soil water availability to plants), woody species may adjust the structure of their vessel network to improve their resistance against future soil drought stress. Impacts of soil drought on intervessel lateral contact remain poorly understood despite of its significance to xylem transport efficiency and safety. Here, we analysed drought-induced modifications in xylem structures of temperate angiosperm trees with a focus on intervessel lateral contact. Anatomical analyses were performed both in stems of seedlings cultivated under different substrate water availability and annual rings of mature individuals developed during years of low and high soil drought intensities. In response to limited water availability, a decrease in vessel diameter (up to −20%) and simultaneous increase in vessel density (up to +60%) were observed both in seedlings and mature trees. Conversely, there were only small and inconsistent drought-induced changes in intervessel contact frequency and intervessel contact fraction (typically up to ±15%) observed across species, indicating that intervessel lateral contact is a conservative trait. The small adjustments in intervessel lateral contacts were primarily driven by changes in the contact frequencies between neighbouring vessels (i.e. vessel grouping) rather than by changes in proportions of shared cell walls. Our results demonstrate that angiosperm tree species, despite remarkable adjustments in vessel dimensions and densities upon soil drought, exhibit surprisingly invariant intervessel lateral contact architecture. ER -
JUPA, Radek, Dita KRABIČKOVÁ, Roman PLICHTA, Stefan MAYR a Vít GLOSER. Do angiosperm tree species adjust intervessel lateral contact in response to soil drought? \textit{Physiologia Plantarum}. Wiley, 2021, roč.~172, č.~4, s.~2048-2058. ISSN~0031-9317. Dostupné z: https://dx.doi.org/10.1111/ppl.13435.
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