Long-term retention of ice-nucleating active Pseudomonas fluorescens by overwintering colorado potato beetles |
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Authors: | Castrillo L A Lee RE JR R E Lee M R Wyman J A |
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Institution: | Department of Zoology and Department of Microbiology, Miami University, Oxford, Ohio 45056 USA. |
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Abstract: | Ice nucleating-active Pseudomonas fluorescens F264C was fed to Colorado potato beetles to determine bacterial retentioin in the beetle gut and its effect on the cold hardiness of this insect pest. The bacrterium was present in beetles recovered after overwintering in the field, seven months after their exposure to P. fluorescens. Retention was evident not only in the detection of the P. fluorescens ice nucleating gene, inaW, in bacterial cultures from beetle guts but also in the elevated supercooling points of some treated beetles. |
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