The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Influence of Germination Triggers on Control Efficacy of an Entomopathogenic Fungus Beauveria bassiana against Myzus persicae

곤충병원성 곰팡이 Beauveria bassiana 포자 발아촉진제가 복숭아혹진딧물 살충효과에 미치는 영향

  • Kim, Jeong-Jun (Agricultural Microbiology Team, National Academy of Agricultural Science, Rural Development Administration) ;
  • Zhu, Hong (Agricultural Microbiology Team, National Academy of Agricultural Science, Rural Development Administration) ;
  • Seok, Soon-Ja (Agricultural Microbiology Team, National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Sang-Yeob (Agricultural Microbiology Team, National Academy of Agricultural Science, Rural Development Administration)
  • 김정준 (농촌진흥청 국립농업과학원 농업미생물팀) ;
  • ;
  • 석순자 (농촌진흥청 국립농업과학원 농업미생물팀) ;
  • 이상엽 (농촌진흥청 국립농업과학원 농업미생물팀)
  • Received : 2011.11.21
  • Accepted : 2011.11.29
  • Published : 2011.12.01
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Abstract

This study was conducted to investigate agents inducing conidial germination of an entomopathogenic fungus, Beauveria bassiana KK5. Different chemicals including carbohydrates were mixed with conidia of B. bassiana and incubated on water agar for 12 hours. Fructose, mannose and skim milk were useful for spore germination compared to other chemicals. Bioassays against green peach aphids were conducted with the fungal conidia suspended in 1% fructose, mannose and skim milk. Of them, a mixture of skim milk plus conidia of B. bassiana KK5 showed the highest mortalities against $3^{rd}$ instar of green peach aphid.

곤충병원성 곰팡이 B. bassiana KK5균의 포자 발아 촉진제를 조사하기 위한 연구가 수행되었다. 탄수화물을 포함한 18 화합물을 B. bassiana 포자와 혼합하여 12시간 동안 water agar에서 배양하였다. 18종의 화합물 중 fructose, mannose 그리고 skim milk와 혼합된 포자의 발아율은 배양 12시간 후 무처리와 비교하여 촉진되는 것으로 조사되었다. 발아 촉진 효과가 확인된 1% fructose, mannose 또는 skim milk와 포자 혼합액을 진딧물에 살포 하였을 때, skim milk와 포자 혼합액의 처리에서 복숭아혹진딧물 3령 약충에 대한 살충증진 효과를 보였다.

Keywords

References

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