Effects of Several Microorganisms on the Insecticidal Activity of .DELTA.-Endotoxin of Bacillus thuringiensis serovar Kurstaki HD-1.
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- MIYASONO Minoru
- Aburahi Laboratories, Shionogi Research Laboratories, Shionogi & Co. Ltd.
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- YAMAMOTO Makiko
- Aburahi Laboratories, Shionogi Research Laboratories, Shionogi & Co. Ltd.
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- INAGAKI Shyuichiro
- Aburahi Laboratories, Shionogi Research Laboratories, Shionogi & Co. Ltd.
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- OHBA Katsuaki
- Aburahi Laboratories, Shionogi Research Laboratories, Shionogi & Co. Ltd.
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- ISHIGURO Takeo
- Aburahi Laboratories, Shionogi Research Laboratories, Shionogi & Co. Ltd.
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- HAYASHI Yoshiyuki
- Aburahi Laboratories, Shionogi Research Laboratories, Shionogi & Co. Ltd.
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- TAKEDA Reiji
- Aburahi Laboratories, Shionogi Research Laboratories, Shionogi & Co. Ltd.
Bibliographic Information
- Other Title
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- 乳酸菌,酵母菌,枯草菌およびBacillus thuringiensisの混合によるBacillus thuringiensis HD‐1 δ‐endotoxinの殺虫活性増強について
- 乳酸菌,酵母菌,枯草菌およびBacillus thuringiensisの混合によるBacillus thuringiensis HD-1 δ-endotoxinの殺虫活性増強について
- ニュウサンキン コウボキン コソウキン オヨビ Bacillus thurin
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Abstract
The enhancement of the insecticidal activity of δ-endotoxin from Bacillus thuringiensis serovar kurstaki HD-1 by several microorganisms and spores from six serovars of B. thuringiensis was investigated. Fourth instar larvae of the diamondback moth, Plutella xylostella were fed on 5g of artificial diet containing 1ml of test preparation. The LC50 values of the δ-endotoxin combinations with spore or bacterial cells (108/ml) were: B. thuringiensis serovar kurstaki: 0.05μg/ml, serovar aizawai: 0.06μg/ml, serovar kenyae: 0.21μg/ml, serovar israelensis: 0.53μg/ml, serovar entomocides: 1.10μg/ml, serovar sotto: 2.00μg/ml, living cells of Lactobacillus rhamnosus: 0.42μg/ml, Saccharomyces sake: 0.77μg/ml, Bacillus subtilis: 2.50μg/ml, Zygosaccharomyces soya: 2.10μg/ml, and Bacillus coagulans: 3.40μg/ml. Whereas the LC50 of δ-endotoxin was 5.80μg/ml. Higher correlations were observed between the enhanced insecticidal activity and proliferation of microorganisms in the insect hemolymphs. Germination of spores or proliferation of bacterial cells in the insects were observed when only δ-endotoxin was applied. This suggests that: (1) spore germination in the intestine of the diamondback moth is responsible for the lethal precipitate action, (2) spores or living cells of some microorganisms act synergistically with the δ-endotoxin toxicity.
Journal
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- Japanese Journal of Applied Entomology and Zoology
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Japanese Journal of Applied Entomology and Zoology 38 (2), 101-108, 1994
JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY
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Details 詳細情報について
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- CRID
- 1390001206449118720
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- NII Article ID
- 110001124387
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- NII Book ID
- AN00186121
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- COI
- 1:CAS:528:DyaK2cXkslKis7k%3D
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- ISSN
- 13476068
- 00214914
- http://id.crossref.org/issn/00214914
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- NDL BIB ID
- 3882866
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed