Yang Li、Qingzhou Yao、Zhon Xing、Choufei Wu1、Liqin Zhang
???PWN????Bursaphelenchus xylophilus? B. xylophilus ??????????PWD???????1????????????????????????PWD??????????????????????PWD?????????????????????????????????PWD??????????????????????????10????????Pinus massoniana?P. massoniana ???????? B. xylophilus???????????????????????????PCR-DGGE????????? B. xylophilus?????P. massoniana?????????????????????? 8?16?11?12???????????????????????????4?????PWD??????????????????????????????NMDS????????????P. massoniana???????????????????????????????????????????????????30???40?????????????????????????P. massonian a??????????????????????????????40???PWD?????????????PWD??????????????????????????????????????PWD?????????????????????????????????????