Genomic repertoire of Mameliella alba Ep20 associated with Symbiodinium from the endemic coral Mussismilia braziliensis
Bacteria associated with Symbiodinium may exert relevant roles in the Symbiodinium and the coral host. The bacterial isolate Ep20 was obtained from cell suspensions of Symbiodinium retrieved from the endemic coral Mussismilia braziliensis (Abrolhos Bank, Brazil). Here we aimed to analyze the genomic...
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Published in | Symbiosis (Philadelphia, Pa.) Vol. 80; no. 1; pp. 53 - 60 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Netherlands
2020
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Bacteria associated with
Symbiodinium
may exert relevant roles in the
Symbiodinium
and the coral host. The bacterial isolate Ep20 was obtained from cell suspensions of
Symbiodinium
retrieved from the endemic coral
Mussismilia braziliensis
(Abrolhos Bank, Brazil). Here we aimed to analyze the genomic repertoire of Ep20 to gain insights into its possible roles in the coral holobiont. Ep20 enhanced the growth of
Symbiodinium
under controlled laboratory conditions, possibly through nitrogen fixation and vitamin production. The genome of Ep20 contains 5.5 Mbp (65% G + C content), 5397 genes, 53 tRNAs, and four rRNAs. Ep20 was identified as
Mameliella alba
, a member of the
Roseobacter
Clade Bacteria (RCB, Alphaproteobacteria). The genomic repertoire of Ep20 includes genes responsible for i. Aerobic Anoxygenic Photosynthesis (AAP), ii. Cofactors and vitamins (B
12
), iii. Gene Transfer Agents (GTAs), iv. Dimethylsulfoniopropionate (DMSP) metabolism, v. Carbon and Nitrogen fixation, and vi. Secondary metabolites (e.g., Terpenes). The genomic attributes of Ep20 hint at a possible mutualistic interaction with
Symbiodinium
, both in the free-living and in the coral holobiont lifestyles. |
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ISSN: | 0334-5114 1878-7665 |
DOI: | 10.1007/s13199-019-00655-x |