Relationship between <I>Bacillus thuringiensis</I> Isolated from Crops and Field Soil and the Strains Used in BT-Insecticide Formulations
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概要
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Anti <I>B. thuringiensis</I> H-sera were prepared with <I>B. thuringiensis</I>, Kurstaki (H-3a3b3c) and <I>B. thuringiensis</I>, Aizawai (H-7) which are used in the BT microbial pesiticide formulations, in addition to <I>B. thuringiensis</I>, Thuringiensis (H-1), <I>B. thuringiensis</I>, Sotto (H-4a4b) and <I>B. thuringiensis</I>, Israelensis (H-14). The prepared anti H-sera had relatively high specificity, and the titres of each anti H-sera ranged from 6, 400 to 12, 800.<BR>Eighty-four strains of <I>B. thuringiensis</I> isolated from various foodstuffs and farmland soil were identified with the 5 prepared anti H-sera. Consequently, 49 strains were identified by the anti H-sera, and included 38 of serovar H-3a3b3c, 7 of serovar H-7, 3 of serovar H-4a4b and 1 of serovar H-14.<BR>Particularly, strains presumed as serovar H-3a3b3c were frequently detected from imported corn and from native vegetables and soil. This suggested that BT formulations were applied to various crops as preharvest and/or postharvest pesticides, and that attention should be paid to the contamination of <I>B. thuringiensis</I> from the aspect of food hygiene.
- 日本食品微生物学会の論文
日本食品微生物学会 | 論文
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