大豆科学2024，Vol.43Issue(1)：88-94,7.DOI:10.11861/j.issn.1000-9841.2024.01.0088
野生大豆内生真菌YD09鉴定及促生耐盐特性研究
Identification of Endophytic Fungi YD09 from Wild Soybean and Its Characteristics in Promoting Growth and Salt Tolerance
摘要
Abstract
In order to screen endophytes with growth promotion and stress resistance from wild soybeans,we used tissue separation method to isolate endophytic fungi from wild soybean roots.The strain was identified according to the morphology and ITS sequence phylogenetic tree.The salt tolerance characteristics of the strain itself was studied,as well as the effects of intracellular and extracellular products on the growth and salt tolerance of soybean seedlings.One endophytic fungus was isolated and identified as Alternaria angustifolia,which was named YD09.The strain YD09 can grow up under 30％NaCl concentration.Strain YD09 has a good promoting effect on soybean seedlings,and make the seedlings resistant to NaCl concentration up to 200 mmol·L-1.The intracellular product of strain YD09 has a significant resistance promoting effect on soybean seedlings,extracellular products can enhance salt tolerance of soybean seedlings.Strain YD09 has good growth promoting and salt tolerance abilities,which can alleviate the damage of salt stress to soybean seedlings,and it can be used as a new strain resource in agricultural production.关键词
野生大豆/内生真菌/鉴定/耐盐Key words
wild soybean/endophytic fungi/identification/salt tolerance引用本文复制引用
高丽丽,林星月,朱淼,王泽,东雨竹,马莲菊..野生大豆内生真菌YD09鉴定及促生耐盐特性研究[J].大豆科学,2024,43(1):88-94,7.基金项目
辽宁省教育厅项目(LJC201912,LZD202004,LJKZ0991). （LJC201912,LZD202004,LJKZ0991）
