Effects of Ce3+ on improvement of spectral characteristics and function of chloroplasts damaged by linolenic acid in spinach
来源期刊：JOURNAL OF RARE EARTHS2009年第2期
论文作者：HONG Fashui YIN Sitao LIU Chao ZHOU Min LIU Xiaoqing DUAN Yanmei LI Na ZE Yuguan
Key words：Ce3+; linolenic acid; chloroplasts; spectral characteristic; O2-evolving; rare earths;
Abstract: Linolenic acid has great effects on the structure and function of chloroplast. We studied the effects of Ce3+ on the improvement of chloroplast spectral characteristics and oxygen evolution damaged by linolenic acid in spinach. Results showed that Ce3+ could decrease the light absorption increased by linolenic acid and promote the distribution of excitation energy to PS Ⅱ and alleviate the decrease of PS Ⅱ fluo-rescence yield caused by linolenic acid. The linolenic acid treatments in various concentrations reduced the oxygen-evolving rate of chloro-plasts, but the rate was accelerated since adding Ce3+.
HONG Fashui1，YIN Sitao1，LIU Chao1，ZHOU Min1，LIU Xiaoqing1，DUAN Yanmei1，LI Na1，ZE Yuguan1
(1.College of Life Sciences,Suzhou University,Suzhou 215123,China)
Abstract:Linolenic acid has great effects on the structure and function of chloroplast. We studied the effects of Ce3+ on the improvement of chloroplast spectral characteristics and oxygen evolution damaged by linolenic acid in spinach. Results showed that Ce3+ could decrease the light absorption increased by linolenic acid and promote the distribution of excitation energy to PS Ⅱ and alleviate the decrease of PS Ⅱ fluo-rescence yield caused by linolenic acid. The linolenic acid treatments in various concentrations reduced the oxygen-evolving rate of chloro-plasts, but the rate was accelerated since adding Ce3+.
Key words:Ce3+; linolenic acid; chloroplasts; spectral characteristic; O2-evolving; rare earths;
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