Nano-anatase relieves the inhibition of electron transport caused by linolenic acid in chloroplasts of spinach

被引：14

作者：

Su Mingyu ^{[1
]}

Liu Chao ^{[1
]}

Qu Chunxiang ^{[1
]}

Zheng Lei ^{[1
]}

Chen Liang ^{[1
]}

Huang Hao ^{[1
]}

Liu Xiaoqing ^{[1
]}

Wu Xiao ^{[1
]}

Hong Fashui ^{[1
]}

机构：

[1] Suzhou Univ, Coll Life Sci, Suzhou 215123, Peoples R China

来源：

BIOLOGICAL TRACE ELEMENT RESEARCH | 2008年 / 122卷 / 01期

基金：

中国国家自然科学基金;

关键词：

nano-anatase; TiO2; linolenic acid; spinach; chloroplast; electron transport; oxygen evolution;

D O I：

10.1007/s12011-007-8055-x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Linolenic acid is an inhibitor of electron transport in chloroplasts of higher plants. It has obvious effects on the structure and function of chloroplasts. In the present paper, we investigated the nano-anatase relieving the inhibition of photoreduction activity and oxygen evolution caused by linolenic acid in spinach chloroplasts. The results showed that linolenic acid in various concentrations could obviously reduce the whole chain electron transport and the photoreduction activity of two photosystems, especially on the oxidative reside and reduce reside of photosystem II (PS II). After adding nano-anatase to chloroplasts treated by linolenic acid, the whole chain electron transport rate, the photoreduction activity of two photosystems, and the oxygen evolution rate were increased significantly, indicating that nano-anatase could obviously decrease the inhibition of linolenic acid on the electron transport, photoreduction activity, and oxygen evolution of spinach chloroplasts.

引用

页码：73 / 81

页数：9

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