R Waite1, S Jackson, H Thompson. 1. National Bee Unit, Central Science Laboratory, Sand Hutton, York, UK.
Abstract
AIMS: To investigate the occurrence of oxytetracycline (OTC) resistance in Melissococcus plutonius, which causes European foulbrood in honeybee colonies. METHODS AND RESULTS: Strains of M. plutonius were isolated from diseased colonies in England and Wales and tested for resistance to OTC. The minimum inhibitory concentration (MIC) of OTC was also determined for selected isolates. No resistance to the antibiotic was found in any isolate and the average MIC was found to be 3.9 microg ml-1. Melissococcus plutonius was found to be susceptible to both chlortetracycline and tetracycline. CONCLUSIONS: No resistance to OTC was found in M. plutonius. SIGNIFICANCE AND IMPACT OF THE STUDY: This study demonstrated that OTC can continue to be used to treat European foulbrood and that resistance may not explain why some treatments fail.
AIMS: To investigate the occurrence of oxytetracycline (OTC) resistance in Melissococcus plutonius, which causes European foulbrood in honeybee colonies. METHODS AND RESULTS: Strains of M. plutonius were isolated from diseased colonies in England and Wales and tested for resistance to OTC. The minimum inhibitory concentration (MIC) of OTC was also determined for selected isolates. No resistance to the antibiotic was found in any isolate and the average MIC was found to be 3.9 microg ml-1. Melissococcus plutonius was found to be susceptible to both chlortetracycline and tetracycline. CONCLUSIONS: No resistance to OTC was found in M. plutonius. SIGNIFICANCE AND IMPACT OF THE STUDY: This study demonstrated that OTC can continue to be used to treat European foulbrood and that resistance may not explain why some treatments fail.
Authors: Jiang Hong Li; Jay D Evans; Wen Feng Li; Ya Zhou Zhao; Gloria DeGrandi-Hoffman; Shao Kang Huang; Zhi Guo Li; Michele Hamilton; Yan Ping Chen Journal: PLoS One Date: 2017-11-10 Impact factor: 3.240
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