期刊
MYCOLOGICAL PROGRESS
卷 15, 期 10-11, 页码 1137-1144出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11557-016-1235-3
关键词
Nematophagous; Hyphomycetes; Xeric habitat
类别
Lecophagus vermicola sp. nov. is described and illustrated as a predacious (carnivorous) hyphomycete living in bark fissures of living trees of Platanus and other angiosperm and gymnosperm trees, recorded in Hungary, Luxembourg and France. The fungus captures nematodes unlike other Lecophagus species, which are predators of rotifers and tardigrades. The morphology of the sessile, adhesive knobs differ from all previously described species of the genus which form adhesive pegs. Molecular data confirms that the new species belongs to the Lecophagus clade but without matching existing sequences. The fungus captures victims with adhesive knobs and colonizes its prey with a mycelium of rather broad hyphae on which, again, adhesive knobs are formed which penetrate the cuticule of the victim. Clusters of colonized nematodes form a network utilized to capture more prey. The fungus lives in the xeric, ephemerally aquatic habitat of bark fissures of standing, living or dead, corticated trunks and branches. The genus Haptocara is compared, which has similar adhesive knobs capturing nematodes and similar broad hyphae, but for which no molecular data was available.
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