Cultural Studies On Soil Nematodes and Their Fungal Hosts
Cultural Studies On Soil Nematodes and Their Fungal Hosts
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土壤线虫及其真菌宿主的培养研究
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
J. Dighton
中科院分区：
文献类型：
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作者：
Liliane Ruess;J. Dighton
在实验室实验中，研究了线虫在菌根和腐生真菌培养物中的生存、摄食和繁殖。从云杉森林土壤有机层中提取的线虫被接种到真菌平板上。真菌饲养者 Aphelenchoides saprophilus 是繁殖最成功的物种。以菌根真菌作为食物来源，其种群比腐生真菌物种发展得更快、程度更大。放牧腐霉会降低菌丝重量和真菌生长速度。类似的影响也可能发生在田间，并可能影响菌根发育或影响土壤真菌之间的竞争。除了 A. saprophilus 之外，腐食性线虫 Acrobeloides nanus 在菌根真菌培养物中也能很好地繁殖。对于某些以细菌为食的线虫来说，可能存在摄入底物或在真菌菌丝上放牧的因素。
In laboratory experiments survival, feeding and reproduction of nematodes in cultures with mycorrhizal and saprophytic fungi were investigated. Nematodes extracted from the organic layer of a spruce forest soil were inoculated to fungal plates. The fungal feeder Aphelenchoides saprophilus was the most successful species to multiply. With mycorrhizal fungi as a food source its population developed faster and to a greater extent than it did with saprophytic fungal species. The grazing of A. saprophilus reduced mycelial weight and fungal growth rate. Similar effects are likely to occur in the field, and can influence mycorrhizal development or affect competition between soil fungi. Besides A. saprophilus, the saprophagous nematode Acrobeloides nanus reproduced well in cultures with mycorrhizal fungi. There may be an element of substrate ingestion or grazing on fungal hyphae for some bacterial feeding nematodes.