云南省烟草根结线虫卵寄生菌的分离和筛选

ISOLATING AND SCREENING OF FUNGI PARASITED IN EGGS OF TOBACCO ROOT KNOT NEMATODES

为了防治烟草根结线虫病,用"Z"形法和五点法在云南省15个县市采集带卵块或根结的烟根150份,并用直接解剖法从根结线虫卵上共分离寄生菌193株,它们分别属于Verticillumchlamydosporium、V psalliota、Verticillumspp 、Paecilomyceslilacinus、Trichodermaspp 、Fusariumspp 、Phomaspp 、Cladospori umspp 、Cephaeosporiumspp 、Aspergillusspp 、Penicilliumspp 和Mucorspp 。其中,厚孢轮枝霉(Verti cilumchlamydosporium)、淡紫拟青霉(Paecilomyceslilacinus)是根结线虫卵的主要寄生菌。

FOR CONTROL TOBACCO ROOT-KNOT NEMATODE MORE EFFECTIVELY, 150 SAMPLES WERE COLLECTED FROM TOBACCO FIELDS AT 30 CITIES (OR COUNTIES) OF YUNNAN PROVINCE WITH 'Z' TYPE OR 5 POINT METHODS. 193 PARASITIC FUNGI WERE OBTAINED BY DIRECT DISSECTION FROM EGGS OF ROOT-KNOT NEMATODES, WHICH INCLUDE THE SPECIES OF VERTICILLUM CHLAMYDOSPORIUM, V. PSALLIOTA, VERTICILLUM SPP., PAECILOMYCES LILACINUS, TRICHODERMA SPP., FUSARIUM SPP., PHOMA SPP., CLADOSPORIUM SPP., CEPHAEOSPORIUM SPP.,ASPERGILLUS SPP., PENICILLIUM SPP., MUCOR SPP. AMONG THEM, VERTICILLUM CHLAMYDOSPORIUM AND PAECILOMYCES LILACINUS WERE MAIN PARASITES.