Starch and apparent rate of photosynthesis of leaves of Lolium perenne grown at different temperatures
- 1 January 1970
- journal article
- Published by Springer Nature in Planta
- Vol. 91 (3), 274-278
- https://doi.org/10.1007/bf00385487
Abstract
Leaves from Lolium perenne plants grown at day/night temperatures of 15°/10° had slower rates of apparent photosynthesis at 15° than leaves from plants grown at 25°/20°. Electron microscopy showed a higher starch concentration in chloroplasts from low- compared with the higher temperature-grown plants. However, all differences in apparent photosynthesis were negatively associated with differences in size of mesophyll cells. It is suggested that the presence of starch per se had no effect on photosynthesis rate and that temperature during growth influences subsequent rates because leaves from the higher temperature have smaller cells and chloroplasts than those from the lower one.Keywords
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