Melissococcus plutonius is a fastidious honeybee pathogen, and the addition of KH(2)PO(4) to culture medium is required for its growth. Using genome sequences and a newly developed vector, we showed that mutations in genes encoding Na(+)/H(+) antiporter and cation-transporting ATPase are involved in the potassium requirement for growth.
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http://dx.doi.org/10.1128/AEM.00598-13 | DOI Listing |
Front Vet Sci
December 2024
Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada.
European Foulbrood (EFB) is a severe bacterial disease affecting honeybees, primarily caused by the Gram-positive bacterium . Although the presence of is associated with EFB, it does not consistently predict the manifestation of symptoms, and the role of 'secondary invaders' in the disease's development remains a subject of ongoing debate. This review provides an updated synthesis of the microbial ecological factors that influence the expression of EFB symptoms, which have often been overlooked in previous research.
View Article and Find Full Text PDFViruses
August 2024
College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
Larval mortality is the primary symptom of diseased colonies, often attributed to sacbrood virus (SBV) and However, the impact of other common honeybee viruses is frequently overlooked, and their pathogenicity to remains poorly understood. To investigate the causes of the increasing disease incidence in brood, we conducted an epidemiological survey, collecting 70 samples from 19 sites across nine provinces in China. Furthermore, we examined the pathogenicity of Israeli acute paralysis virus (IAPV) in brood through artificial inoculation experiments.
View Article and Find Full Text PDFCan J Vet Res
July 2024
Faculté de médecine vétérinaire, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, Québec J2S 2M2 (Claing, Arsenault, Dubreuil); Centre de recherche en sciences animales de Deschambault, 120a chemin du Roy, Deschambault, Québec G0A 1S0 (Bernier); Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec, 200 chemin Ste-Foy, ville de Québec, Québec G1R 4X6 (Ferland, Rodriguez); Cégep Garneau, 1660 boulevard de l'Entente, ville de Québec, Québec G1S 4S3 (L'Homme).
Winter mortality of honey bee colonies represents a major source of economic loss for the beekeeping industry. The objectives of this prospective study were to estimate the incidence risk of winter colony mortality in southwestern Quebec, Canada and to evaluate and quantify the impact of the associated risk factors. A total of 242 colonies from 31 apiaries was selected for sampling in August 2017.
View Article and Find Full Text PDFInsects
May 2024
Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia.
Honeybee diseases are one of the most significant and most common causes of honeybee colonies' weakness and death. An early diagnosis of subclinical infections is necessary to implement precautionary and control measures. Sampling debris from hive bottom boards is simple, non-invasive, and cheap.
View Article and Find Full Text PDFPLoS One
May 2024
Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy.
The survival of the honey bee (Apis mellifera), which has a crucial role in pollination and ecosystem maintenance, is threatened by many pathogens, including parasites, bacteria, fungi and viruses. The ectoparasite Varroa destructor is considered the major cause of the worldwide decline in honey bee colony health. Although several synthetic acaricides are available to control Varroa infestations, resistant mites and side effects on bees have been documented.
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