Hymenobacter taeanensis sp. nov., radiation resistant bacterium isolated from coastal sand dune

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Title
Hymenobacter taeanensis sp. nov., radiation resistant bacterium isolated from coastal sand dune
Author(s)
J H Lee; J H Jung; M K Kim; Han Na Choe; S Lim
Bibliographic Citation
Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, vol. 114, no. 10, pp. 1585-1593
Publication Year
2021
Abstract
An aerobic, Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, and light pink-colored bacterial strain, designated TS19T, was isolated from a sand sample obtained from a coastal sand dune after exposure to 3 kGy of gamma radiation. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that the isolate was a member of the genus Hymenobacter and was most closely related to H. wooponensis WM78T (98.3% similarity). Strain TS19T and H. wooponensis showed resistance to gamma radiation with D10 values (i.e., the dose required to reduce the bacterial population by tenfold) of 7.3 kGy and 3.5 kGy, respectively. The genome of strain TS19T consists of one contig with 4,879,662 bp and has a G + C content of 56.2%. The genome contains 3,955 protein coding sequences, 44 tRNAs, and 12 rRNAs. The predominant fatty acids of strain TS19T were iso-C15:0, summed feature 4 (iso-C17:1 I and/or anteiso-C17:1 B), summed feature 3 (C16:1 ω6c and/or C16:1 ω7c), and C16:1 ω5c. The major polar lipids were phosphatidylethanolamine, and one unidentified aminophospholipid. The main respiratory quinone was menaquinone-7. Based on the phylogenetic, physiological, and chemotaxonomic characteristics, strain TS19T represents a novel species, for which the name Hymenobacter taeanensis sp. nov. is proposed. The type strain is TS19T (= KCTC 72897T = JCM 34023T).
Keyword
HymenobacterCoastal sand duneTaxonomyGamma radiationPhylogenetic analysis
ISSN
0003-6072
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s10482-021-01624-5
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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