Chemotactic responses of the root-knot nematode Meloidogyne incognita to Streptomyces plicatus
Chemotactic responses of the root-knot nematode Meloidogyne incognita to Streptomyces plicatus
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根结线虫南方根结线虫对褶皱链霉菌的趋化反应
DOI：
10.1093/femsle/fnz234
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发表时间：
2019
影响因子：
2.1
通讯作者：
Yajun Liu
中科院分区：
文献类型：
--
作者：
Pinyi Wang;Yan Sun;Liangliang Yang;Yan Hu;Jiefang Li;Jinxing Wang;Fei Zhang;Yajun Liu
根际微生物在包括土壤线虫在内的许多根际物种的相互作用中起着重要作用。本研究采用离体培养的方法，筛选了100株根际放线菌对南方根结线虫（Meloidogyne incognita）的趋化作用。褶皱链霉菌G产生的挥发性物质对M.无名氏化合物二苯并呋喃对M.化合物苯并噻唑对无名线虫有较强的驱避作用。对M.还在盆栽实验中的受控条件下测试了incognita。S.褶皱型G和挥发性二苯并呋喃型M.挥发性的苯并噻唑使它们不受欢迎。结果表明，根际放线菌产生的挥发性物质能影响线虫对寄主的趋化性。本研究为农作物根际放线菌和线虫的相互关系提供了新的信息，可能有助于防治线虫寄生。
Rhizosphere microorganisms play an important role in the interactions of many species in the rhizosphere, including soil nematodes. One hundred strains of rhizosphere actinomycetes were screenedin vitrofor their effects on the chemotactic behavior of the root-knot nematode,Meloidogyne incognita. Volatile compounds produced by the strainStreptomyces plicatusG demonstrated both strong attractant and repellent activities towardsM. incognita. The compound dibenzofuran attractedM. incognitanematodes strongly, while compound benzothiazole repelled them. The chemotaxis ofM. incognitawas also tested under controlled conditions in pot experiments. Cultures ofS. plicatusG and volatile dibenzofuran attractedM. incognitawhile volatile benzothiazole repelled them. The results showed that volatile compounds produced by rhizosphere actinomycetes could influence the chemotaxis of nematodes to a host. This study provides new information about the interrelationship between rhizosphere actinomycetes and nematodes that may be useful in preventing nematode parasitism of agricultural crops.