穿剌芽孢杆菌在水稻潜根线虫中感染的记述

The Record of the infection of Hirschmanniella oryzae with Bacillus penetrans

穿剌芽孢杆菌在水稻潜根线虫中感染的记述潘沧桑林竞汪空旭（厦门大学生物学系寄生动物研究室厦门３６１００５）蔡秋锦（福建林学院资源与环境学系南平３５３０００）穿剌芽孢杆菌由于其孢子能附着在许多种线虫的体表，使其侵染力降低甚至死亡，纵有少数侵入植物体内，其...

The present communication reports the infection of Hirschmanniella oryzae with Bacillus penetrans  in Yuan Kou Village of Nan Ping city in Fujian province, which was first found in China. The infectivity was 5.26 %.In addition, the cuticles of 40 % of H. oryzae were adhered to the endospores of B. penetrans.  After the infection, the pseudocoelom of H. oryzae was filled with many spores, so that nematodes were clumsy in movement, body's colour was especially white, and ophagus became indistinct. When the nematode bodies were cut, many spores flowed out of the wound, and the genital glands in the pseudocoelom shrivelled. The spores were (n=36) 4.1±0.1 (3.6～4.3) μm in diameter with an internal, dense, spherical structure at apex which was (n=32) 2.0±0.1 (1.6～2.1) μm in diameter. Their morphology was similar to the spores from the females of Meloidogyne spp. . This discovery indicated that B.penetrans currently appeared to have great potential for biological control of Hirschmanniella spp. of rice.