Volatile compounds in pine stands suffering from pine wilt disease: qualitative and quantitative evaluation
Volatile compounds in pine stands suffering from pine wilt disease: qualitative and quantitative evaluation
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DOI：
10.1163/156854106779799295
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发表时间：
2006
期刊：
影响因子：
1.2
通讯作者：
Y. Takeuchi;N. Kanzaki;K. Futai
中科院分区：
文献类型：
--
作者：
Y. Takeuchi;N. Kanzaki;K. Futai
尽管对松材线虫（Bursaphelenchus xylophilus）进行了大量的保护，但松材线虫病仍对日本松林造成了生态和经济损失。感染了嗜木芽孢杆菌的松树会释放出一种具有特征性的挥发性化合物，对线虫病媒甲虫（Monochamus alternatus）具有生物活性，并可能影响树木内部的症状发展。为了研究田间挥发性物质的定性和定量特性，我们对两处自然发生松材枯萎病的日本黑松林和人工接种了木霉的日本黑松林的挥发性物质排放进行了分析。在两种松林中，(−)-α-蒎烯等萜类物质的释放量在夏季开始增加，与病媒甲虫产卵季节重叠，但在夏秋两季达到峰值。这些数据表明，甲虫在寻找适合产卵的树木时，可能不一定只依赖大量的挥发物。
Pine wilt disease causes ecological and economic damage in Japanese pine forests in spite of intensive effort to protect them from the pine wood nematode, Bursaphelenchus xylophilus. Pine trees infected with B. xylophilus emit a characteristic bouquet of volatile compounds bioactive to the vector beetle of the nematode, Monochamus alternatus, and potentially affecting symptom development inside the trees. To investigate the qualitative and quantitative properties of volatile compounds in the field, we profiled the volatile emissions in two Japanese black pine stands, one naturally suffering from pine wilt disease and the other artificially inoculated with B. xylophilus. In both pine stands, the emission of some terpenoids from the infected trees such as (−)-α-pinene, began to increase in summer, overlapping the oviposition season of the vector beetle, but peaked in the summer and autumn. These data suggest that the beetles may not necessarily depend on the tremendous quantity of volatiles alone when they search for suitable trees on which to oviposit.