Bolla R I, Winter R E, Fitzsimmons K, Linit M J
J Nematol. 1986 Apr;18(2):230-8.
An isolate of Bursaphelenchus xylophilus from Pinus sylvestris in Missouri infected and reproduced in 2-3-year-old seedlings of P. sylvestris and to some extent in seedlings of P. nigra. Wilting, however, occurred only in P. sylvestris. B. xylophilus isolated from P. strobus in Vermont infected and reproduced only in P. strobus seedlings. P. taeda seedlings were resistant to both of these isolates. Phytotoxin production was seen only in susceptible seedling species-nematode combinations. Significant water loss occurred only in those seedlings that were wilted because of infection by a compatible nematode isolate. Our results suggest that these isolates are pathotypes of B. xylophilus.
从密苏里州的欧洲赤松中分离出的一种松材线虫在2至3年生的欧洲赤松幼苗中感染并繁殖，在一定程度上也能在黑松幼苗中感染和繁殖。然而，萎蔫现象仅在欧洲赤松中出现。从佛蒙特州的北美乔松中分离出的松材线虫仅在北美乔松幼苗中感染和繁殖。火炬松幼苗对这两种分离株均具有抗性。仅在易感幼苗物种与线虫的组合中观察到植物毒素的产生。显著的水分流失仅发生在那些因受兼容线虫分离株感染而萎蔫的幼苗中。我们的结果表明，这些分离株是松材线虫的致病型。
