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Screening of Entomopathogenic Fungal Culture Extracts with Honeybee Nosemosis Inhibitory Activity. | LitMetric

Screening of Entomopathogenic Fungal Culture Extracts with Honeybee Nosemosis Inhibitory Activity.

Insects

Department of Agricultural Biology, College of Agriculture, Life & Environment Science, Chungbuk National University, Cheongju 28644, Republic of Korea.

Published: June 2023

AI Article Synopsis

  • This study tested 342 types of fungi to find the most effective extracts for combating honeybee nosemosis, a disease caused by spores.
  • Among the tested fungi, 89 extracts demonstrated high inhibitory activity, and 44 of these maintained their effectiveness at 1% concentration.
  • Ultimately, two fungal extracts significantly reduced honeybee death rates and improved their survival, highlighting their potential as biocontrol agents against nosemosis.

Article Abstract

This study aimed to select the most effective culture extracts for controlling honeybee nosemosis using 342 entomopathogenic fungi of 24 species from 18 genera. The germination inhibitory activity of the fungal culture extract on spores was evaluated using an in vitro germination assay method. Among 89 fungal culture extracts showing germination inhibitory activity of approximately 80% or more, 44 fungal culture extracts that maintained their inhibitory activity even at a concentration of 1% were selected. Finally, the honeybee nosemosis inhibitory activity was evaluated using the cultured extracts of five fungal isolates having a inhibitory activity of approximately 60% or more, even when the extract was removed after treatment. As a result, the proliferation of spores was reduced by all fungal culture extract treatments. However, only the treatment of the culture extracts from 364 and 60 showed a reduction in honeybee mortality due to nosemosis. In particular, the extracts of these two fungal isolates also increased the survival of honeybees.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10298890PMC
http://dx.doi.org/10.3390/insects14060538DOI Listing

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