Vulcanibacillus modesticaldus gen. nov., sp. nov., a strictly anaerobic, nitrate-reducing bacterium from deep-sea hydrothermal vents

International Journal of Systematic and Evolutionary Microbiology
Stéphane L'HaridonC Jeanthon

Abstract

A novel anaerobic, moderately thermophilic, spore-forming bacterium, designated strain BRT, was isolated from deep-sea hydrothermal core samples collected at the Rainbow vent field on the Mid-Atlantic Ridge (36 degrees 14' N 33 degrees 54' W). The cells were found to be rod-shaped, non-motile, Gram-positive and spore-forming. The organism grew in the temperature range 37-60 degrees C, with an optimum at 55 degrees C, and at pH values in the range 6-8.5, with an optimum around pH 7. NaCl concentrations for growth were in the range 10-40 g l(-1), with an optimum at 20-30 g l(-1). Strain BRT grew chemo-organoheterotrophically with carbohydrates, proteinaceous substrates and organic acids with nitrate as electron acceptor. The novel isolate was not able to ferment. The G+C content of the genomic DNA was 34.5 mol%. Phylogenetic analysis of the 16S rRNA gene sequence placed strain BRT in the Bacillaceae within the class 'Bacilli'. On the basis of the phenotypic and phylogenetic data, this isolate should be described as a member of a novel genus, for which the name Vulcanibacillus gen. nov. is proposed. The type species is Vulcanibacillus modesticaldus sp. nov., with the type strain BRT (=DSM 14931T=JCM 12998T).

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Citations

Jun 8, 2011·Microbiology and Molecular Biology Reviews : MMBR·Beth N OrcuttKatrina J Edwards
Apr 2, 2008·Annals of the New York Academy of Sciences·Isaac D Wagner, Juergen Wiegel
Mar 15, 2011·International Journal of Systematic and Evolutionary Microbiology·Akinobu EchigoRon Usami
Nov 2, 2014·International Journal of Systematic and Evolutionary Microbiology·Zhen YuShungui Zhou
Apr 10, 2008·International Journal of Systematic and Evolutionary Microbiology·G B SlobodkinaA I Slobodkin
Aug 1, 2014·Environmental Science and Pollution Research International·Shenghui WangXia Huang
Jul 14, 2016·International Journal of Systematic and Evolutionary Microbiology·Yiran DongBruce W Fouke
Apr 28, 2018·International Journal of Systematic and Evolutionary Microbiology·Pei LinTae-Hoo Yi
Oct 30, 2020·International Journal of Systematic and Evolutionary Microbiology·Juan LiGaosen Zhang
May 11, 2021·3 Biotech·Sulochana A Shet, Sandeep Garg
Jun 25, 2015·Microbiology Spectrum·Patricia Fajardo-CavazosWayne L Nicholson
Jun 25, 2015·Microbiology Spectrum·Ines Mandic-MulecJan Dirk van Elsas
Jul 7, 2021·Archives of Microbiology·Michel Rodrigo Zambrano PassariniRafaella Costa Bonugli-Santos

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