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Effect of Nosema ceranae infection and season on the gut bacteriome composition of the European honeybee (Apis mellifera)
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Effect of Nosema ceranae infection and season on the gut bacteriome composition of the European honeybee (Apis mellifera)
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Journal Article
Effect of Nosema ceranae infection and season on the gut bacteriome composition of the European honeybee (Apis mellifera)
2022
Overview
Nosema ceranae
is an intracellular parasite that infects honeybees’ gut altering the digestive functions; therefore, it has the potential of affecting the composition of the gut microbiome. In this work, individual bees of known age were sampled both in spring and autumn, and their digestive tracts were assessed for
N. ceranae
infection. Intestinal microbiome was assessed by sequencing the bacterial 16S rRNA gene in two different gut sections, the anterior section (AS; midgut and a half of ileum) and the posterior section (PS; second half of ileum and rectum). A preliminary analysis with a first batch of samples (n = 42) showed that AS samples had a higher potential to discriminate between infected and non-infected bees than PS samples. As a consequence, AS samples were selected for subsequent analyses. When analyzing the whole set of AS samples (n = 158) no changes in α- or β-diversity were observed between infected and non-infected bees. However, significant changes in the relative abundance of Proteobacteria and Firmicutes appeared when a subgroup of highly infected bees was compared to the group of non-infected bees. Seasonality and bees’ age had a significant impact in shaping the bacteriome structure and composition of the bees’ gut. Further research is needed to elucidate possible associations between the microbiome and
N. ceranae
infection in order to find efficient strategies for prevention of infections through modulation of bees’ microbiome.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
