Seasonal courses of maximum hydraulic conductance in shoots of six temperate deciduous tree species

Functional Plant Biology : FPB
Krõõt Aasamaa, Anu Sõber

Abstract

The seasonal course of maximum hydraulic conductance of leaf laminae (K lamina) of shoots correlated strongly with the seasonal course of the maximum hydraulic conductance of leaf laminae of HgCl2-treated shoots (K lamina(HgCl2)), and with the seasonal course of the difference (dK lamina) between K lamina and K lamina(HgCl2). However, it did not correlate strongly with the seasonal course of the hydraulic conductance of stem and petioles of the shoot (K stpt) in six temperate deciduous tree species. The species ranked according to K lamina as follows: Populus tremula L. > Salix caprea L. > Padus avium Mill. > Quercus robur L. > Tilia cordata Mill. > Acer platanoides L. The species-specific maxima of K lamina correlated positively with the simultaneous values of K lamina(HgCl2), dK lamina and K stpt; the correlation was strongest with K lamina(HgCl2). It was concluded that the seasonal dynamics of maximum hydraulic conductance of leaf laminae was determined almost equally by the seasonal dynamics of the hydraulic conductance of foliar protoplasts and apoplast, but the inter-specific differences in K lamina were mainly caused by the different apoplastic hydraulic conductance in leaves of these species. The relative contribution o...Continue Reading

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Citations

May 1, 2008·Annual Review of Plant Biology·Christophe MaurelVéronique Santoni
Nov 5, 2014·Plant, Cell & Environment·Guowei LiVéronique Santoni
Jun 5, 2019·Proceedings. Biological Sciences·Hisanori HarayamaAtsushi Ishida
Sep 1, 2012·Functional Plant Biology : FPB·Kr T Aasamaa, Anu S Ber
Nov 3, 2016·Molecular & Cellular Proteomics : MCP·Jorge BellatiVéronique Santoni
Dec 17, 2020·International Journal of Molecular Sciences·Yan WangFushun Hao

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