<正>在松材线虫病的研究方面，目前比较一致的观点是松材线虫在整个病程中起着重要作用，其中多数学者认为松材线虫是唯一病原，还有认为松材线虫携带的细菌与松材线虫一起导致发病。在致病机理的研究中，有3种主要观点：（1）松材线虫分泌的酶破坏了松树薄壁细胞的壁和膜，导致松树死亡；（2）松材线虫入侵松树后，松树体内出现了导致松树死亡的毒素；（3）松树感染松材线虫后，木质部内挥发性物质增加，管胞中形成了空洞，致使松树体内水分输导受阻，松树萎蔫死亡。在松树对松材线虫的抗性方面，树种之间抗性的差异性较显著，而同种松树不同地理种源之间抗性的差异性的显著程度因树种而异。

One bamboo powder reinforcement PF resin composite was made. The properties of this composite had been studied. The dimension of particles and the content of bamboo powder in the composite was obvious to the compound materials performance influence. The bamboo powder reinforcement PF resin composites could get better property by controlling the dimension of the particles and its area in the material.