Increasing rice photosynthesis by manipulation of the acclimation and adaptation to light.
There are three important considerations in assessing the interaction of crop plants with light: (a) how does the plant respond to the light environment both in the short-term (regulation) and in the long-term (acclimation), (b) under what conditions are these responses inadequate, leading to photoinhibition, and (c) are the responses optimally adapted for maximum agricultural yield? Despite a wealth of knowledge about these processes in model plant species, it is impossible to predict how significant they are in influencing the yield of rice. Therefore, in collaboration with IRRI, we have undertaken a study of photoinhibition and photoacclimation of rice under field conditions. The results of this study are presented, along with an assessment of the implications for improvement of rice yield.
Horton
P
P
Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, Sheffield S10 2TN, UK.
Murchie
E H
EH
Ruban
A V
AV
Walters
R G
RG
D000222:Adaptation, Physiological; D018533:Biomass; D002245:Carbon Dioxide / Q000378:metabolism; D002734:Chlorophyll / Q000378:metabolism / Q000528:radiation effects; D008027:Light; D045342:Light-Harvesting Protein Complexes; D009584:Nitrogen / Q000378:metabolism; D012275:Oryza / Q000502:physiology / Q000528:radiation effects*; D010084:Oxidation-Reduction; D010788:Photosynthesis / Q000502:physiology / Q000528:radiation effects*; D045322:Photosynthetic Reaction Center Complex Proteins / Q000528:radiation effects; D018515:Plant Leaves / Q000502:physiology / Q000528:radiation effects; D014867:Water
D045342:Light-Harvesting Protein Complexes; D045322:Photosynthetic Reaction Center Complex Proteins; D014867:Water; D002734:Chlorophyll; D002245:Carbon Dioxide; D009584:Nitrogen