植物病原真菌产生ABA的初步研究

PRILIMINARY STUDY ON THE MODEL FOR SCREENING ABA PRODUCING STRAINS

根据植物病理学和微生物生态学原理，建立了脱落酸（ＡＢＡ）产生菌的筛选模型。从不同的植物寄主上分离到３６株真菌，其中有十余株菌株能产生天然的脱落酸，这些真菌分别属于葡萄孢属（Ｂｏｔｒｙｔｉｓ）、青霉属（Ｐｅｎｉｃｉｌｉｕｍ）、根霉属（Ｒｈｉｚｏｐｕｓ）和镰孢属（Ｆｕｓａｒｉｕｍ）。其中一株ＡＢＡ的产量达到４６ｇ／ｇ培养基，经鉴定为灰葡萄孢（Ｂ．ｃｉｎｅｒｅａ）。在此基础上，对该菌株的培养条件进行了优化。

Thirty six strains of phytopathogenic fungi were isolated from different plant tissues. Ten fungus producing abscisic acid were assigned to Botrytis, Fusarium, Rhizopus and Penicillium . ABA was purified from the cultures. The highest ABA producing strain was selected from Botrytis cinerea and the yield was 46μg/g medium.