search for




 

Nematode-Trapping Fungi Showed Different Predacity among Nematode Species
Res. Plant Dis. 2019;25:149-155
Published online September 30, 2019
© 2019 The Korean Society of Plant Pathology.

Heonil Kang1 , Insoo Choi1,2, Namsook Park2, Changhwan Bae3, and Donggeun Kim2*

1Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea
2Nematode Research Center, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Korea
3Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Korea
*Tel: +82-55-350-5692
Fax: +82-55-350-5509
E-mail: kimdgkr@naver.com
ORCID
https://orcid.org/0000-0002-9858-6593
Received May 1, 2019; Revised July 24, 2019; Accepted August 16, 2019.
cc This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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


September 2019, 25 (3)