《植物生理学报》 2016, 52(1): 28-36

植物和藻类应对硫缺乏的生理生化响应

王倩雅, 张莹, 袁朝杰, 李爱芬^*, 张成武

暨南大学水生生物研究中心, 广州510632

通信作者：李爱芬；E-mail: tiger@jnu.edu.cn

摘　要：

硫素对藻类和植物的生长发育具有重要的生理功能, 是继氮、磷、钾之后第四位必需的中量营养元素。硫素缺乏严重影响藻类和植物的生理生化功能, 因此, 藻类和植物也相应形成了应对硫缺乏的作用机制, 表现为细胞代谢途径发生调整, 提高对外源硫素的转运与同化能力; 增强对膜脂硫代异鼠李糖甘油二酯(sulfoquinovosyl diacylglycerol, SQDG)和胞内含硫次级代谢产物等内源硫的利用; 类囊体光合膜结构发生变化, 光合作用的效率降低; 细胞生长速率与分裂也受到一定限制。本文主要围绕藻类和植物应对硫缺乏的上述生理生化响应机制进行了综述。

关键词：硫缺乏; 硫素的转运与同化; 代谢途径; 细胞生长与分裂

收稿：2015-12-21   修定：2016-01-09

资助：国家自然科学基金(41176105)和中央高校基本科研业务费专项资金 (21614101)。

Physiological and biochemical response of plants and algae in response to deprivation sulfur

WANG Qian-Ya, ZHANG Ying, YUAN Chao-Jie, LI Ai-Fen^*, ZHANG Cheng-Wu

Jinan University, Research Center of Hydrobiology, Guangzhou 510632, China

Corresponding author: LI Ai-Fen; E-mail: tiger@jnu.edu.cn

Abstract:

Sulfur has an important physiological function on the growth and development of algae and plants, and it is the following fourth essential middle-nutrients of nitrogen, phosphorus and potassium. The physiological and biochemical functions of algae and plants have been affected seriously by sulfur deficiency, and therefore algae and plants have generated several corresponding responses to react sulfur deprivation: adjusting metabolic pathways and increasing the capacity of the cell for transporting and assimilating exogenous sulfate; enhancing sulfoquinovosyl diacylglycerol (SQDG) and secondary metabolites of endogenous sulfur utilization; changing photosynthetic membrane structure and the efficiency of photosynthes has reduced, and the rate of cell growth and division has also subjected to certain restrictions. This paper aims to discuss several response mechanisms in algae and plants under sulfur deprivation.

Key words: sulfur deprivation; sulfur transport and assimilation; metabolic pathways; cell growth and division