Novel lactic acid bacteria inhibiting Paenibacillus larvae in honey bee larvae

We evaluated the antagonistic effects of newly identified lactic acid bacteria (LAB) in the genera Lactobacillus and Bifidobacterium, originating from the honey stomach, on the honey bee pathogen, Paenibacillus larvae. We used inhibition assays on agar plates and honey bee larval bioassays to invest...

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Bibliographic Details
Published in:Apidologie 2010, Vol.41 (1), p.99-108
Main Authors: Forsgren, Eva, Olofsson, Tobias C, Váasquez, Alejandra, Fries, Ingemar
Format: Article
Language:English
Subjects:
Agricultural sciences
American foulbrood
Animal biology
Animal production studies
Animal productions
antibacterial properties
Apiculture
Bifidobacterium
bioassays
Biodiversity
Biologi
Biological and medical sciences
Biological Sciences
Biomedical and Life Sciences
Ecology, environment
Entomology
Fundamental and applied biological sciences. Psychology
honey
honey bee colonies
honey bees
inhibition
Insecta
Invertebrate Zoology
Invertebrates
Lactic Acid Bacteria
Lactobacillus
larvae
Life Sciences
Natural Sciences
Naturvetenskap
Original Article
Paenibacillus larvae
pathogens
phylotype
stomach
Terrestrial animal productions
Zoologi
Zoology
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Summary:We evaluated the antagonistic effects of newly identified lactic acid bacteria (LAB) in the genera Lactobacillus and Bifidobacterium, originating from the honey stomach, on the honey bee pathogen, Paenibacillus larvae. We used inhibition assays on agar plates and honey bee larval bioassays to investigate the effects of honey bee LAB on P. larvae growth in vitro and on AFB infection in vivo. The individual LAB phylotypes showed different inhibition properties against P. larvae growth on agar plates, whereas a combination of all eleven LAB phylotypes resulted in a total inhibition (no visible growth) of P. larvae. Adding the LAB mixture to the larval food significantly reduced the number of AFB infected larvae in exposure bioassays. The results demonstrate that honey bee specific LAB possess beneficial properties for honey bee health. Possible benefits to honey bee health by enhancing growth of LAB or by applying LAB to honey bee colonies should be further investigated.
ISSN:0044-8435
1297-9678
1297-9678
DOI:10.1051/apido/2009065