Evolution of C 4 plants: a new hypothesis for an interaction of CO 2 and water relations mediated by plant hydraulics

P. Osborne, Colin; Sack, Lawren

doi:10.1098/rstb.2011.0261

Public

Evolution of C 4 plants: a new hypothesis for an interaction of CO 2 and water relations mediated by plant hydraulics

Published in Philosophical Transactions of the Royal Society B Biological Sciences • Jan 9, 2012

Authors:

Colin P. Osborne

Lawren Sack

Abstract

C(4) photosynthesis has evolved more than 60 times as a carbon-concentrating mechanism to augment the ancestral C(3) photosynthetic pathway. The rate and the efficiency of photosynthesis are greater in the C(4) than C(3) type under atmospheric CO(2) depletion, high light and temperature, suggesting ...

Subject

Photosynthesis

Transpiration

Water-use efficiency

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