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Virologica Sinica, 17 (3) : 239-242, 2002
Research Article
Enhancement to Helicoverpa armigera NucleOpOlyhedrOVirus by Chitinase of W HS3 Strain
Wuhan Institute of Virology,Chinese Academy 0,Sciences,Wuhan 430071,China
WHs3 Serratia marcesscens is a high yield bacterium of Chitinase.The yield of chtinase in
induce medium was 84.4t~g/mI .The chitinase(A3) can enhance the toxicity of Helicoverpa
arm igera nucleopolyhedrovirus(HaSNPV)up tO 20% ~70% .The LT50 and LT90 were shortened
1.1 and 1.3 days respectively com paring with contro1
  Published online: 5 Jun 2002
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