Hydraulic efficiency of the leaf venation system in sun- and shade-adapted species

Functional Plant Biology : FPB
Andrea NardiniSebastiano Salleo

Abstract

We tested the hypothesis that leaf hydraulics is correlated with the light adaptation of different plant species and specifically that the hydraulic resistance of the leaf venation (Rvenation) is lower in sun- than in shade-adapted species. Rvenation was measured in six sun- and six shade-adapted species with a high-pressure flow meter (HPFM). The number of conduits at the proximal third of the midrib was counted and the diameter of the widest conduits together with vein density were measured. Rvenation was higher in shade species than in sun species and it was negatively correlated with the mean diameter of the widest conduits. Maximum leaf conductance to water vapour recorded for the different species was negatively correlated with the corresponding Rvenation. Sun-adapted species coping with the high water demand typical of sunny habitats appeared to have developed a highly efficient conducting system to supply living mesophyll cells with water. In contrast, species adapted to shady habitats showed higher Rvenation values according to their lower need for investment of carbon into producing wide conduits in the leaf.

References

Feb 1, 1994·Plant Physiology·W. J. DaviesC. L. Trejo
Oct 16, 2002·Journal of Experimental Botany·Lawren SackN Michele Holbrook
Apr 6, 2004·Plant Physiology·Lawren SackN Michele Holbrook
Feb 22, 2005·The New Phytologist·Tim J BrodribbBeatriz Palma
Dec 1, 2004·Functional Plant Biology : FPB·Antonio GascóSebastiano Salleo

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Citations

Jul 10, 2007·Plant, Cell & Environment·Maciej A ZwienieckiN Michele Holbrook
Feb 21, 2008·Plant, Cell & Environment·Andrea NardiniSebastiano Salleo
Sep 20, 2011·Plant, Cell & Environment·Katy E SommervilleMarilyn C Ball
Jul 5, 2016·International Journal of Molecular Sciences·Adi Yaaran, Menachem Moshelion
Oct 19, 2017·Plant, Cell & Environment·Akihiro OhtsukaHaruhiko Taneda
Feb 1, 2011·Functional Plant Biology : FPB·Chris J Blackman, Tim J Brodribb
May 4, 2006·Annual Review of Plant Biology·Lawren Sack, N Michele Holbrook
Aug 8, 2008·Plant, Cell & Environment·Tim J Brodribb, Gregory J Jordan
Jun 4, 2016·Nature Plants·Christine ScoffoniLawren Sack
Apr 15, 2008·Biology Letters·David A CoomesLawren Sack
Nov 29, 2011·Journal of Experimental Botany·Andreas SavvidesWim van Ieperen
Jun 18, 2011·The New Phytologist·Timothy J Brodribb, Gregory J Jordan
Nov 4, 2006·Plant, Cell & Environment·Tim J Brodribb, N Michele Holbrook
Jan 30, 2008·Proceedings of the National Academy of Sciences of the United States of America·Lawren SackN Michele Holbrook
Sep 6, 2011·Tree Physiology·Roman GebauerPaal Krokene
Sep 2, 2017·Photosynthesis Research·Jared J StewartBarbara Demmig-Adams

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Software Mentioned

SigmaStat
SPSS

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