Characteristics and pathogenicity of the Entomopathogenic Fungus Beauveria bassiana101AA on the silkworm (Bombyx mori)

백강균(Beauveria bassiana)101A의 특성 및 가잠(Bombyx mori)에 대한 병원성 검정

  • 정이연 (농촌진흥청 농업과학기술원 잠사곤충부) ;
  • 남성희 (농촌진흥청 농업과학기술원 잠사곤충부) ;
  • 조세연 (농촌진흥청 농업과학기술원 잠사곤충부)
  • Published : 2000.12.01

Abstract

This study was carried out to investigate incubating characteristics, LTSEM observation, nature of a disease of infected silkworms(bombyx mori), LD$\_$50/, optimum infective condition for mass production and infection percentage(%) on conservation periods. On the V8 media, the colony was 0.5∼2.0cm/8 days in diameter and white or slighty colored with a white fluffy to powdery appearance. The conidia was subglobos in shape, zig-zag appearance, 1-celled, hyaline and 3.2$\times$2.4 ㎛ in size on the average. The conidiophore was irregular grouped, hyaline, rounded or flask-shaped. The LD$\_$50/ values of the 2nd and 4th silkworms were each other 6.6142(Log) in natural temperature and humidity (25$\^{C}$, 65%). On optimum infective condition for mass production, all of preservation time(hr.) postinoculation in 1.0$\times$10$\^$8/ conidia/㎖ was over 97% and only 20 hr in 1.0$\times$10$\^$7/ condia/㎖ was over 90%.

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References

  1. Entomol.Exp.Appl. v.45 Hemocytic defense response to the entomopathogenic fungus Beauveria bassiana in the migratory grasshopper Melanoplus sanguinipes Bidochka, M.J.;Khachatourians,G.G.
  2. Entomophaga v.12 no.3 Etude on laboratoire des conditions ecologibues favorisant le development de la mycose a Beauveria.tenella du ver Blanc. Ferron,P.
  3. Comprehensive Insect Physiology Biochemistry and Pharmacology v.12 Fungal control Ferron, P.;G.A.Kerkut(eds.);L.I.Gilbert(eds.)
  4. Statistical Methods in Bioassay Finney, D.J.
  5. Owaldo Cruz, Rio de Janeiro v.84 World picture of biological control of fungi,Inst. Roberts, D.W.
  6. Principles of Insect Pathology Steinhaus, E.A.
  7. Insect pathology Tanada Y.;H.Kaya
  8. Paris Soc.Bot.Fr.Bull. v.59 Beauveria,nouveau genre de Verticilliacees Vuillemin, P.
  9. 동의보감 v.339 학력개발사(동의보감 편찬위원회)