【摘要】 盐胁迫是在干旱半干旱和灌溉地区的一种主要的非生物胁迫。本文主要综述了盐胁迫下蓝藻为适应高盐度环境所表现出的各种响应机制:(1)积累渗透调节物质;(2)增强P-ATP酶活性和排出钠离子与改变膜脂质成分;(3)抗氧化性发生改变。盐胁迫蓝藻是一类生物应对高盐或者干旱胁迫的系统模型,对研究生物响应盐胁迫的分子机理和解决农业干旱、土壤盐渍化问题有重要意义。本文主要综述了盐胁迫对蓝藻的影响及蓝藻对盐胁迫的响应。更多还原

【Abstract】 Salt stress is a major abiotic stress in arid and semi-arid and irrigated areas.A variety of response mechanisms of cyanobacterias which is adapted to high salinity environment are discussed.Results are as follows:(1)the accumulation of osmolytes;(2)enhancement of P-ATPase activity and active extrusion of sodium ions and modification of membrane lipid composition;(3)antioxidant changes.Salt stress cyanobacterias is a kind of system model of living things to high salt or dry stress.It is important to study the molecular biological mechanism of salt stress response and resolution of agricultural drought,soil salinity problems.In this paper,the impact of salt stress on cyanobacteria and response of cyanobacterias to salt stress is mainly reviewed.更多还原