Effect of nano-TiO2 on photochemical reaction of chloroplasts of spinach |
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| Authors: | Fashui Hong Juan Zhou Chao Liu Fan Yang Cheng Wu Lei Zheng Ping Yang |
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| Affiliation: | (1) College of Life Sciences, Suzhou University, 215006 Suzhou, People's Republic of China;(2) College of Chemistry and Chemical Engineering, Suzhou University, 215006 Suzhou, People's Republic of China |
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| Abstract: | ![]()
The effects of nano-TiO2 (rutile) on the photochemical reaction of chloroplasts of spinach were studied. The results showed that when spinach was treated with 0.25% nano-TiO2, the Hill reaction, such as the reduction rate of FeCy, and the rate of evolution oxygen of chloroplasts was accelerated and noncyclic photophosphorylation (nc-PSP) activity of chloroplasts was higher than cyclic photophosphorylation (c-PSP) activity, the chloroplast coupling was improved and activities of Mg2+-ATPase and chloroplast coupling factor I (CF1)-ATPase on the thylakoid membranes were obviously activated. It suggested that photosynthesis promoted by nano-TiO2 might be related to activation of photochemical reaction of chloroplasts of spinach. |
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| Keywords: | Nano-TiO2 spinach chloroplast photophosphorylation coupling factor |
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