Jones John T, Moens Maurice, Mota Manuel, Li Hongmei, Kikuchi Taisei
PPP Programme, SCRI, Invergowrie, Dundee DD2 5DA, UK.
Mol Plant Pathol. 2008 May;9(3):357-68. doi: 10.1111/j.1364-3703.2007.00461.x.
Most Bursaphelenchus species are fungal feeding nematodes that colonize dead or dying trees. However, Bursaphelenchus xylophilus, the pine wood nematode, is also a pathogen of trees and is the causal agent of pine wilt disease. B. xylophilus is native to North America and here it causes little damage to trees. Where it is introduced to new regions it causes huge damage. The most severely affected areas are found in the Far East but more recently B. xylophilus has been introduced into Portugal and the potential for damage here is also high. As incidence and severity of pine wilt disease are linked to temperature we suggest that climate change is likely to exacerbate the problems caused by B. xylophilus and, in addition, will extend (northwards in Europe) the range in which pine wilt disease can occur. Here we review what is currently known about the interactions of B. xylophilus with its hosts, including recent developments in our understanding of the molecular biology of pathogenicity in the nematode. We also examine the potential developments that could be made by more widespread use of genomics tools to understand interactions between B. xylophilus, bacterial pathogens that have been implicated in disease and host trees.
大多数松材线虫物种是寄生于真菌的线虫，它们寄生于枯死或濒死的树木。然而，松材线虫（Bursaphelenchus xylophilus）也是树木的病原体，是松树萎蔫病的致病因子。松材线虫原产于北美，在那里它对树木造成的损害较小。当它被引入新的地区时，会造成巨大的破坏。受影响最严重的地区在远东，但最近松材线虫已被引入葡萄牙，在那里造成破坏的可能性也很高。由于松树萎蔫病的发病率和严重程度与温度有关，我们认为气候变化可能会加剧松材线虫造成的问题，此外，还会（在欧洲向北）扩大松树萎蔫病可能发生的范围。在此，我们综述了目前已知的松材线虫与其寄主相互作用的情况，包括我们对线虫致病性分子生物学理解的最新进展。我们还研究了通过更广泛地使用基因组学工具来了解松材线虫、与疾病有关的细菌病原体和寄主树木之间相互作用可能取得的进展。
