Differences in photosynthetic responses of NADP-ME type C4 species to high light
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- 作者：Elżbieta Romanowska ; Alicja Buczyńska ; Wioleta Wasilewska ; Tomasz Krupnik…
- 关键词：Bundle sheath and mesophyll chloroplasts ; Fluorescence ; Photosynthesis rate ; Protein phosphorylation ; Photosystems activity ; Photoinhibition
- 刊名：Planta
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：245
- 期：3
- 页码：641-657
- 全文大小：888KB
- 刊物主题：Plant Sciences; Agriculture; Ecology; Forestry;
- 出版者：Springer Berlin Heidelberg
- ISSN：1432-2048
- 卷排序：245
文摘
Main conclusionThree species chosen as representatives of NADP-ME C4 subtype exhibit different sensitivity toward photoinhibition, and great photochemical differences were found to exist between the species. These characteristics might be due to the imbalance in the excitation energy between the photosystems present in M and BS cells, and also due to that between species caused by the penetration of light inside the leaves. Such regulation in the distribution of light intensity between M and BS cells shows that co-operation between both the metabolic systems determines effective photosynthesis and reduces the harmful effects of high light on the degradation of PSII through the production of reactive oxygen species (ROS).