| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
What's this? |
0 Department of Ecology and Evolution, State University of New York, Stony Brook, New York 11794 USA
ABSTRACT
I compared the C4 grass flora and climatic records for 32 sites in the United States. Consistent with previous studies, I found that the proportion of the grass flora that uses the NADP malic enzyme (NADP-ME) variant of C4 photosynthesis greatly increases with increasing annual precipitation, while the proportion using the NAD malic enzyme (NAD-ME) variant (and also the less common phosphoenolpyruvate carboxykinase [PCK] variant) decreases. However the association of grass subfamilies with annual precipitation was even stronger than for the C4 decarboxylation variants. Analysis of the patterns of distribution by partial correlation analysis showed that the correlations between the frequency of various C4 types and rainfall were solely due to the association of the C4 types with particular grass subfamilies. In contrast, there was a strong correlation of the frequency of the different subfamilies with annual precipitation that was independent of the influence of the different C4 variants. It therefore appears that other, as yet unidentified, characteristics that differ among grass subfamilies may be responsible for their differences in distribution across natural precipitation gradients.
Key Words: climate • C4 photosynthesis • grasses • NAD-ME photosynthesis • NADP-ME photosynthesis • PCK photosynthesis • Poaceae • precipitation
CiteULike Complore Connotea Del.icio.us Digg Facebook Reddit Technorati Twitter What's this?
This article has been cited by other articles:
|
|
 |
|
  B. Ripley, K. Frole, and M. Gilbert Differences in drought sensitivities and photosynthetic limitations between co-occurring C3 and C4 (NADP-ME) Panicoid grasses Ann. Bot., January 27, 2010; (2010): mcp307v1 - mcp307. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. E. Carmo-Silva, A. Francisco, S. J. Powers, A. J. Keys, L. Ascensao, M. A. J. Parry, and M. C. Arrabaca Grasses of different C4 subtypes reveal leaf traits related to drought tolerance in their natural habitats: Changes in structure, water potential, and amino acid content Am. J. Botany, July 1, 2009; 96(7): 1222 - 1235. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. P. Osborne and R. P. Freckleton Ecological selection pressures for C4 photosynthesis in the grasses Proc R Soc B, May 22, 2009; 276(1663): 1753 - 1760. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
O. Ghannoum C4 photosynthesis and water stress Ann. Bot., February 1, 2009; 103(4): 635 - 644. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P.-A. Christin, B. Petitpierre, N. Salamin, L. Buchi, and G. Besnard Evolution of C4 Phosphoenolpyruvate Carboxykinase in Grasses, from Genotype to Phenotype Mol. Biol. Evol., February 1, 2009; 26(2): 357 - 365. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P.-A. Christin, N. Salamin, E. A. Kellogg, A. Vicentini, and G. Besnard Integrating Phylogeny into Studies of C4 Variation in the Grasses Plant Physiology, January 1, 2009; 149(1): 82 - 87. [Full Text] [PDF]
|
|
|
|
 |
|
 B. S. Ripley, M. E. Gilbert, D. G. Ibrahim, and C. P. Osborne Drought constraints on C4 photosynthesis: stomatal and metabolic limitations in C3 and C4 subspecies of Alloteropsis semialata J. Exp. Bot., April 1, 2007; 58(6): 1351 - 1363. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. P Osborne and D. J Beerling Nature's green revolution: the remarkable evolutionary rise of C4 plants Phil Trans R Soc B, January 29, 2006; 361(1465): 173 - 194. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
