《植物生理学报》 2016, 52(11): 1721-1724

亚硫酸氢钠在藻类光合生理中的浓度效应

马为民^*

上海师范大学生命与环境科学学院生物科学与技术系, 上海200234

通信作者：马为民；E-mail: wma@shnu.edu.cn

摘　要：

由于大气污染物SO₂在生理pH的水中主要形成HSO₃ − , 因此人们就NaHSO₃在藻类光合生理中的功能角色进行了广泛研究。研究结果发现, 低浓度NaHSO₃处理可增加围绕光系统I的环式电子传递, 优化ATP/NADPH比例和改善光合碳同化; 中浓度NaHSO₃处理可与超氧阴离子反应, 建立厌氧环境, 激活氢化酶和促进光合放氢; 高浓度NaHSO₃处理则抑制了上述光合生理现象。本文主要围绕NaHSO₃在藻类光合生理中的浓度效应进行简要综述。

关键词：亚硫酸氢钠; 浓度效应; 光合碳同化; 光合放氢; 藻类

收稿：2016-08-01   修定：2016-10-07

资助：国家自然科学基金(31570235和31370270)。

Concentration effect of NaHSO₃ on algal photosynthetic physiology

MA Wei-Min^*

Department of Bioscience and Biotechnology, College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China

Corresponding author: MA Wei-Min; E-mail: wma@shnu.edu.cn

Abstract:

Under physiological pH conditions, bisulfite is a main type after the atmospheric pollutant SO₂ dissolves in water. Consequently, the functional role of NaHSO₃ on algal photosynthetic physiology has been extensively studied. Recent experimental results showed that NaHSO₃ in a low amount improved photosynthetic efficiency via increasing cyclic electron transport around photosystem I and optimizing the ratio of ATP to NADPH; in a moderate amount could enhance the yield of H₂ photoproduction by the reaction of bisulfite with superoxide anion produced at the acceptor side of photosystem I, and consequently building an anaerobic environment and activating hydrogenase; and in a high amount suppressed the aforementioned photosynthetic reactions, including photosynthetic CO₂ assimilation and H₂ photoproduction. This mini-review describes mainly the concentration effect of NaHSO₃ on algal photosynthetic physiology.

Key words: NaHSO₃; concentration effect; photosynthetic CO₂ assimilation; H2 photoproduction; algae