Biodiversity and phylogenetic analysis of the gut microbiome of Euphausia superba Dana from the Rose Sea of the Antarctic Ocean

Lidong, Yuan and Lingzhi, Li and Xiaoqing, Tian and Yingying, Tang and Chengqi, Fan and Hongliang, Huang and Qiao, Yang (2016) Biodiversity and phylogenetic analysis of the gut microbiome of Euphausia superba Dana from the Rose Sea of the Antarctic Ocean. Advances in Polar Science, 27 (1). pp. 48-55.

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Abstract

Metabolites derived from marine symbiotic microorganisms have great potential as lead compounds for the discovery of novel marine drugs. Euphausia superba Dana, which lives in the Antarctic Ocean, is regarded as a new source of marine microbial natural products. However, no studies have examined the biodiversity of the symbiotic intestinal microbiome of E. superba. To address this issue, the species diversity and abundance of the gut microbiome of E. superba Dana from the Rose Sea of the Antarctic Ocean were analyzed by culture-independent high-throughput sequencing and pure culture methods. A comparison with gene databases revealed that the microbiome contained 61 known microbial species and a plethora of uncultivable microorganisms. Additionally, 7% of the species in the microbiome were currently unknown. The microbes belonged to 56 genera, eight of which, including Arthrobacter, Bacillus, Candidatus, Lactococcus, Lysinibacillus, Leuconostoc, Solibacillus, and Vibrio, were dominant, as were Vibrionaceae spp. Moreover, 81 microbial strains were isolated by the pure culture method, and they belonged to 36 genera, including Mobilicoccus, Rhodococcus, Arthrobacter, and Microbacterium. The results obtained by two different methods demonstrate the richness of the microbial biodiversity of the gut microbiome of E. superba, and it also suggests that they have good potential for the discovery of novel marine microbial species.

Item Type:	Article
Related URLs:
Uncontrolled Keywords:	biodiversity, Euphausia superba Dana, gut microbiome, phylogenetic analysis
Subjects:	Natural Environment > Fauna Natural Environment > Oceans
Organizations:	Unspecified
Date Deposited:	02 Nov 2023 10:25
URI:	http://library.arcticportal.org/id/eprint/2594

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