Thus, the symbiotic bacteria in both the pine wilt disease occurrence are indispensable factors.PWN and the bacteria carried by PWN maybe both played an important role in pathogenicity.

• 由此推测，松材线虫所携带的细菌在这一病害过程中起至关重要的作用，细菌与松材线虫二者在松材线虫病的发生中均为不可缺少的因素。