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Date: | Sat, 19 Sep 2015 05:58:53 -0500 |
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The abstract of "Genomics of the honey bee microbiome" by Nancy A.
Moran:
The guts of honey bee workers contain a distinctive community of
bacterial species. They are microaerophilic or anaerobic, and were not
clearly deliniated by earlier studies relying on laboratory culture of
isolates under atmospheric oxygen levels. Recently, a more complete
picture of the potential metabolism and functions of these bacteria
have been possible, using genomic approaches based on metagenomic
samples, as well as cultured isolates. Of these, most are host-
restricted and are generally absent outside adult guts. These species
include both Gram negative groups, such as Gilliamella apicola and
Snodgrassella alvi, and Gram positive groups such as certain
Lactobacillus and Bifidobacterium species. These gut bacterial species
appear to have undergone long term coevolution with honey bee and, in
some cases, bumble bee hosts. Prediction of gene functions from genome
sequences suggests roles in nutrition, digestion, and potentially in
defense against pathogens. In particular, genes for sugar utilization
and carbohydrate breakdown are enriched in G. apicola and the
Lactobacillus species.
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