郑州郊区水稻纹枯病菌对井冈霉素敏感性的初步研究

A PRELIMINARY STUDY ON THE SENSITIVITY OF RICE SHEATH BLIGHT FUNGI (RHIZOCTONIA SOLANI) TO JINGGANGMYCIN IN ZHENGZHOU SUBURBS

本研究通过检测郑州郊区几个主要水稻种植区稻纹枯病菌对井冈霉素的敏感性，发现引起水稻纹枯病的丝核菌有ＡＧ－１ＩＡ和ＡＧ－１ＩＣ两个菌丝融合群，其中ＡＧ－１ＩＡ是主要致病菌群，检测结果表明该菌群菌株对井冈霉素未产生抗药性；ＡＧ－１ＩＣ菌群菌株虽出现的频率较低。

The preliminary study showed that there were two anastomosis groups of Rhizoc tonia solani AG 1IA and AG 1IC from rice sheath blight in Zhengzhou suburb s. The sensitivity of isolates of AG 1IA to Jinggangmycin was similar to that of natural wild ones. The resistance of isolates of AG 1IC to Jinggangmycin wa s tested to increase up to 11.14～15.03 times.