Torr P, Heritage S, Wilson M J
School of Biological Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen AB24 3UU, UK.
Int J Parasitol. 2004 Aug;34(9):997-9. doi: 10.1016/j.ijpara.2004.05.003.
Nematodes are known to parasitise all major invertebrate groups in soils, and it has been assumed that their host finding relies on attraction to chemical cues. We studied movement of three species of insect-parasitic nematodes, Steinernema carpocapsae, Steinernema feltiae and Heterorhabditis megidis in response to chemical and vibrational cues. All species showed strong, significant taxes towards the vibrations. We also show that in soils, the utility of chemical cues as attractants is substantially reduced by the presence of organic matter.
已知线虫寄生于土壤中的所有主要无脊椎动物类群，并且人们认为它们寻找宿主依赖于对化学信号的吸引。我们研究了三种昆虫寄生线虫，即小卷蛾斯氏线虫、嗜菌异小杆线虫和大异小杆线虫对化学和振动信号的反应。所有物种对振动都表现出强烈且显著的趋性。我们还表明，在土壤中，由于有机物的存在，化学信号作为引诱剂的效用会大幅降低。
