Differences in drought sensitivities and photosynthetic limitations between co-occurring C3 and C4 (NADP-ME) Panicoid grasses.

Annals of Botany
B S RipleyMatthew E Gilbert

Abstract

The success of C4 plants lies in their ability to attain greater efficiencies of light, water and nitrogen use under high temperature, providing an advantage in arid, hot environments. However, C4 grasses are not necessarily less sensitive to drought than C3 grasses and are proposed to respond with greater metabolic limitations, while the C3 response is predominantly stomatal. The aims of this study were to compare the drought and recovery responses of co-occurring C3 and C4 NADP-ME grasses from the subfamily Panicoideae and to determine stomatal and metabolic contributions to the observed response. Six species of locally co-occurring grasses, C3) species Alloteropsis semialata subsp. eckloniana, Panicum aequinerve and Panicum ecklonii, and C4 (NADP-ME) species Heteropogon contortus, Themeda triandra and Tristachya leucothrix, were established in pots then subjected to a controlled drought followed by re-watering. Water potentials, leaf gas exchange and the response of photosynthetic rate to internal CO2 concentrations were determined on selected occasions during the drought and re-watering treatments and compared between species and photosynthetic types. Leaves of C4 species of grasses maintained their photosynthetic advantage...Continue Reading

References

Jan 1, 1982·Comparative Biochemistry and Physiology. A, Comparative Physiology·F R FayK Bolan
Dec 29, 2000·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·M R BadgerH Nakano
Apr 1, 2006·Biological Reviews of the Cambridge Philosophical Society·David I WartonMark Westoby
Jun 17, 2008·Annals of Botany·Oula Ghannoum

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Citations

Apr 23, 2011·Journal of Experimental Botany·Marta S LopesChristine H Foyer
Jan 11, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Colin P Osborne, Lawren Sack
Apr 20, 2016·Trends in Plant Science·Matthew E Gilbert, Viviana Medina
May 26, 2016·PloS One·Stefani DaryantoPierre-André Jacinthe
Mar 19, 2013·Global Change Biology·Josep PeñuelasAlistair S Jump
Sep 20, 2017·Plant, Cell & Environment·Maxime VersluysWim Van den Ende
Jul 17, 2021·Journal of Experimental Botany·Cristina R G SalesJohannes Kromdijk

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