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Screening of anti-Nosema substances from entomopathogenic fungi by polar tube germination assay

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한국응용곤충학회 (Korean Society Of Applied Entomology)
초록

The population of managed honey bees has been dramatically declining the recent past in worldwide. The one of most common disease of bees is nosemosis, the nosemosis is caused by microsporidia in the genus Nosema. Nosema apis and N. ceranae have been described as honeybee pathogens. These microsporidia are highly evoloved fungi with an obligately intracellular parasitic lifstyle. The disease causes significant detriment to honey production and results in economic losses. In our knowledge, Fumagillin is the only antibiotic approved for control of nosemosis in honey bees, however this antibiotic may have unintended effects on the honey bee host, ultimately contributing to increased prevalence and pathogenicity of Nosema. Therefore, we screened anti-Nosema substances from entomopathogenic fungal culture filtrates using in vitro polar tube germination assay. These fungal metabolites are employed as antibiotic agents. As results, Total 3 samples (23% of 13 total samples) showing the germinating inhibition against N. ceranae. This screening method may be useful for the detection of anti-Nosema substances from various samples and selected samples in this study may be a good feature to be used in the development of a new biocontrol method of nosemosis.

저자
  • Dong Jun Kim(Department of Agricultural Biology, Chungbuk National University)
  • Won Seok Gwak(Department of Agricultural Biology, Chungbuk National University)
  • Yong Oh Ahn(Department of Agricultural Biology, Chungbuk National University)
  • Seung Hee Lee(Department of Agricultural Biology, Chungbuk National University)
  • In Hui Kim(Department of Agricultural Biology, Chungbuk National University)
  • See Nae Lee(Department of Agricultural Biology, Chungbuk National University)
  • Dong Woo Kim(Department of Agricultural Biology, Chungbuk National University)
  • Tae Young Shin(Department of Agricultural Biology, Chungbuk National University)
  • Sung Min Bae(Department of Agricultural Biology, Chungbuk National University)
  • Soo Dong Woo(Department of Agricultural Biology, Chungbuk National University)