Demequina globuliformis sp. nov., Demequina oxidasica sp. nov. and Demequina aurantiaca sp. nov., actinobacteria isolated from marine environments, and proposal of Demequinaceae fam. nov

International Journal of Systematic and Evolutionary Microbiology
Harumi UeAkira Yokota

Abstract

Three Gram-stain-positive actinobacterial strains, designated YM24-125(T), YM05-1041(T) and YM12-102(T), were isolated from marine environments. Phylogenetic analysis based on 16S rRNA gene sequences indicated that they belonged to the suborder Micrococcineae and were most closely related to members of the genus Demequina with 95.0-98.4 % sequence similarities. Cells of strains YM05-1041(T) and YM12-102(T) were rod-shaped, similar to members of the genus Demequina, while cells of strain YM24-125(T) were cocci to short ovoid rods. All strains grew in the absence of NaCl, but tolerated up to 15 % NaCl. The major menaquinone was demethylmenaquinone DMK-9 (H(4)) and the major polar lipids were phosphatidylinositol, diphosphatidylglycerol and phosphatidyglycerol. All strains contained straight-chain, iso-branched and anteiso-branched saturated fatty acids. The DNA G+C contents were 65.3-67.3 mol%. The peptidoglycans of strains YM05-1041(T) and YM12-102(T) were the A4β type with ornithine while that of strain YM24-125(T) contained ornithine and lysine as diamino acids. Phylogenetic analyses and differences in physiological and biochemical characteristics indicated that these three isolates represent novel species within the genus Dem...Continue Reading

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Citations

Sep 24, 2013·Applied Microbiology and Biotechnology·Ramesh Subramani, William Aalbersberg
Sep 12, 2015·International Journal of Systematic and Evolutionary Microbiology·Moriyuki HamadaKen-Ichiro Suzuki
Apr 1, 2015·International Journal of Systematic and Evolutionary Microbiology·Sooyeon ParkJung-Hoon Yoon
Mar 6, 2012·International Journal of Systematic and Evolutionary Microbiology·Moriyuki HamadaMasayuki Hayakawa
Sep 21, 2011·International Journal of Systematic and Evolutionary Microbiology·Moriyuki HamadaMasayuki Hayakawa
Apr 18, 2015·Genome Announcements·Moriyuki HamadaNobuyuki Fujita
Jul 30, 2016·International Journal of Systematic and Evolutionary Microbiology·Sooyeon ParkJung-Hoon Yoon
Sep 7, 2018·Frontiers in Microbiology·Imen NouiouiMarkus Göker
Sep 21, 2018·Frontiers in Microbiology·Alba Pérez-CataluñaMaria J Figueras
Sep 25, 2021·International Journal of Systematic and Evolutionary Microbiology·Myong Chol KimFang Peng

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