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7蛭弧菌生物拮抗作用的研究7.1蛭弧菌的噬菌特性蛭弧菌在含在特定宿主的双层琼脂平板上,可裂解宿主,形成类似噬菌体的噬斑,现已研究证明,蛭弧菌是一类专门以捕食细菌为生的寄生物。它可以同时裂解不同科属的革兰阴性细菌的大部分,一些菌株还可以裂解革兰阳性菌。蛭弧菌对沙门菌属等裂解活性很强,司穉东等研究报道,蛭弧菌对沙门菌属、志贺菌属、弧菌属、埃希菌属、假单胞菌属中的24株不同科属细菌的裂解率为75%~99.6%,有部分阳性菌株也可被蛭弧菌裂解,但枯草杆菌不能被蛭弧菌裂解。
7 biological antagonism of Bdellovibrio 7.1 Bdellovibrio phage characteristics Bdellovibrio bacteria in a specific double-layer agar plate can be split into the host, the formation of phage-like plaques has been studied to prove that the leech arc Bacteria are a group of parasites specifically designed to feed on bacteria. It cleaves most of the Gram-negative bacteria of different genera at the same time, and some strains can also cleave Gram-positive bacteria. Bdellovibrio on Salmonella and other cracking activity is very strong Division Secretary East reported that Bdellovibrio on Salmonella, Shigella, Vibrio, Escherichia, Pseudomonas in 24 Strains of different strains of bacteria is 75% ~ 99.6% split rate, some positive strains can also be bdellovibrio lytic, but Bacillus subtilis can not be bdellovibrio lysis.