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Nematode-Trapping Fungi Showed Different Predacity among Nematode Species

선충 종류별 4종 포식성곰팡이의 포식력 차이

Kang, Heonil;Choi, Insoo;Park, Namsook;Bae, Changhwan;Kim, Donggeun
강헌일;최인수;박남숙;배창환;김동근

  • Received : 2019.05.01
  • Accepted : 2019.08.16
  • Published : 2019.09.30

Abstract

Nematode-trapping fungi develop trap and consume nematodes are an important part of the subsoil ecosystem and they share a special predator-prey relationship. Four nematode-trapping species, there with adhesive network, Arthrobotrys oligospora, A. sinensis, A. thaumasia and one with constricting ring, Drechslerella brochopaga were collected from soils in Korea and tested their predacity against 12 different nematode species. They were three feeding groups, plant-parasitic (Meloidogyne incognita and Pratylenchus penetrans), fungivorous (Aphelenchus avenae), bacteriovorous (Betlerius sp. and Diplogasteritus sp. in diplogasterid, Panagrolaimus labiatus, P. multidentatus in panagrolaimid, Mesorhabditis irregularis, Pelodera strongyloides and Rhabditis sp., in rhabditid, and Acrobeloides sp. in cephalobid). Results showed that nematode-trapping fungi successfully captured most of nematodes in Petri dish in the group of plant-parasitic nematodes and rhabditids, moderately and variably in other nematodes in 15 days. But it didn't captured A. avenae and Acrobeloides sp. both belongs to c-p group 2. Numbers of Acrobeloides sp. and A. avenae even increased during the test period. The results of this study indicated that nematode-trapping fungi may have specificity among nematode species.

Keywords

Biocontrol;c-p group;Feeding group;Nematophagous fungi;Specificity

Acknowledgement

Grant : Cooperative Research Program for Agriculture Science and Technology Department

Supported by : Rural Development Administration