|Vu, Joseph - UNIVERSITY OF FLORIDA|
|Allen Jr, L - UNIVERSITY OF FLORIDA|
|Boote, Kenneth - UNIVERSITY OF FLORIDA|
Submitted to: Research Signpost: Recent Research Developments in Plant Physiology
Publication Type: Review Article
Publication Acceptance Date: April 20, 2001
Publication Date: November 1, 2001
Citation: GESCH, R.W., VU, J.C., ALLEN JR, L.H., BOOTE, K.J. PHOTOSYNTHETIC RESPONSES OF RICE AND SOYBEAN TO ELEVATED CO2 AND TEMPERATURE. RECENT RESEARCH DEVELOPMENTS IN PLANT PHYSIOLOGY. 2001. V. 2. P. 125-137. Technical Abstract: Carbon dioxide and other "greenhouse" gases continue to increase in the earth's atmosphere at a relatively rapid rate. Because of this, atmospheric general circulation models predict substantial increases in atmospheric temperature and changes in regional precipitation patterns by the later part of this century. Scientific evidence already indicates that the earth's near-surface temperature has increased about 0.6 deg C just over the past three decades. Both CO2 and temperature influence a myriad of biological processes in plants largely due to the effect they have on gas exchange and carbon metabolism. The interactive effects of these environmental factors on plant processes are quite complex and often vary among species. Agronomic crops, particularly those that initially fix carbon by the C3 photosynthetic pathway, are expected to show the greatest response to increases in CO2 and temperature. The following review mainly focuses on describing photosynthetic responses of two important C3 crops, rice (Oryza sativa L.) and soybean (Glycine max L.), to elevated atmospheric CO2 and high temperatures. These crops show interesting differences in how their photosynthetic processes adapt to rising CO2 and temperature.