胞外多糖促进胁迫条件下农作物生长的研究与展望  

Promoting crop growth under stress conditions by exopolysaccharides: review and perspective

作　　者：魏宏宇 李怡 彭帅英 黄林[1,2] 张宝[1,2] 李昆太 程新[1,2] WEI Hong-yu;LI Yi;PENG Shuai-ying;HUANG Lin;ZHANG Bao;LI Kun-tai;CHENG Xin(Institute of Applied Microbiology,Jiangxi Agricultural University,Nanchang 330045,China;College of Bioscience and Bioengineering,Jiangxi Agricultural University,Nanchang 330045,China;College of Food Science and Technology,Guangdong Ocean University,Zhanjiang 524088,China)

机构地区：[1]江西农业大学应用微生物研究所,江西南昌330045 [2]江西农业大学生物科学与工程学院,江西南昌330045 [3]广东海洋大学食品科技学院,广东湛江524088

出　　处：《江苏农业学报》2022年第4期1123-1134,共12页Jiangsu Journal of Agricultural Sciences

基　　金：江西省自然科学基金项目(20202BABL205019);江西省教育厅科技计划项目(GJJ180211)。

摘　　要：胞外多糖是微生物分泌的一大类天然大分子活性物质,在食品、医药、化工等领域有着广泛的应用。目前,大量研究结果表明,胞外多糖是一种很好的生物源肥料,外源施加可以有效地提高农作物生长性能,激活农作物自身潜在的防御机制,以此促进不同胁迫条件下农作物的生长。本文综述了胞外多糖提高盐、干旱、重金属等胁迫条件下农作物生长及生理代谢的研究进展,进而对胞外多糖促进胁迫条件下农作物生长的机理进行了归纳和总结,并对本领域的研究热点进行了展望,旨在推进胞外多糖在农业领域的应用。Exopolysaccharides(EPS) are a large class of natural macromolecular active substances secreted by microorganisms, and play an extensive role in food, medicine, chemical industry and other fields. Numerous research results show that EPS can be used as biological fertilizer. Exogenous application can effectively improve the growth performance of crops and activate their potential defense mechanisms, thus promoting the growth of crops under different stress conditions. Research progress of EPS in improving crop growth and physiological metabolism under stress conditions such as salt stress, drought stress and heavy metals stress was reviewed, and the mechanism of EPS in promoting crop growth under stress conditions was also summarized. In the end, the hotspots in this field were prospected. The aim of this paper is to advance the application of EPS in agriculture.

关 键 词：胞外多糖 产胞外多糖微生物 农作物 胁迫 

分 类 号：S182[农业科学—农业基础科学]