Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Comparison of Predacity of Nematode Predatory Fungi against Meloidogyne incognita

국내 분리 포식성곰팡이들의 고구마뿌리혹선충에 대한 포식 능력 비교

  • Published : 2000.08.01
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Abstract

Fifty-two nematode predatory fungi were isolated from 37 soil samples collected from eight provinces in Korea. Isolated fungi were tested their predacity against Rhabditis sp. and Meloidogyne incognita in petri dish, and against M. incognita in greenhouse pot experiments. Fifty isolates had trapping organ of adhesive networks and two isolates had adhesive column or adhesive knob. In petri dish experiments, 5 1 isolates against Rhubditis sp. and 26 isolates against M. incognita showed over 91 % of predacity; in greenhouse experiments, however, only three isolates showed over 81% of predacity. These results imply that the results from the laboratory experiments are not consistent with those from the greenhouse experiments. Therefore, to select a promising biocontrol predatory fungi for plant-parasitic nematodes, the screening experiment should be conducted in conditions close to nature.

1995년 전국 8개도 37개점의 밭토양으로부터 분리한 52균주의 선충 포식성곰팡이를 이용하여 실내 및 온실에서 부식성선충과 뿌리혹선충을 이용하여 포식력을 비교하였다. 실내검정에서 부식성선충에 대하여 91% 이상의 포식력을 보인 균주는 51균주였고, 부리혹선충에 대하여는 26균주였으나, 온실 검정에서는 81%의 포식력을 보인 균주가 3균주로 온실검정과 실내 검정간 상관 유의성은 없었다. 선발된 3균주는 부식선충 및 뿌리혹선충에 대하여 실내 및 온실실험에서 모두 높은 포식력을 나타내었다. 이 실험으로 미루어 볼 때, 천적 포식성곰팡이 선발 시험은 반드시 포장 조건과 가장 유사한 상태에서 실시되어야 할 것으로 보인다.

Keywords

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