Anti-TMV mechanism of volatile oil extracted from Allium satuvum L.

The volatile oil from Allium sativum splited the particles of tobacco mosaic virus (TMV) after incubating it with TMV.It strongly inhibited TMV-CP polymerization in vitro, but did not obviously influence the infectivity of TMV-RNA.The volatile oil also increased the in vitro activities of peroxidase (POD) and polyphenol oxidase (PPO) when sprayed in Nicotiana tobacum.