Description of Proteiniphilum saccharofermentans sp. nov., Petrimonas mucosa sp. nov. and Fermentimonas caenicola gen. nov., sp. nov. isolated from mesophilic lab-scale biogas reactors and emended description of the genus Proteiniphilum

International Journal of Systematic and Evolutionary Microbiology
Sarah HahnkeMichael Klocke

Abstract

Three novel facultative anaerobic bacteria of the family Porphyromonadaceae (phylum Bacteroidetes) were isolated from mesophilic lab-scale biogas reactors. Strains were Gram-negative rods. Optimal growth occurred between 35 and 45 °C and at pH values of 7.1-7.8. Main fermentation products were acetic and propionic acid. The predominant fatty acid in all strains was anteiso-C15 : 0, the only detected respiratory quinone was menaquinone MK-8. 16S rRNA gene sequence comparison indicated that the strains M3/6T and ING2 E5BT were most closely related to Proteiniphilum acetatigenes with sequence similarities of 97.3 and 94.5 %. Strain ING2 E5AT showed closest affiliation to Petrimonas sulfuriphila with 97 % sequence identity. DNA-DNA hybridization of strain M3/6T and ING2 E5AT with their closest related type strains showed 43.3-45.6 and 23.8-25.7 % relatedness, which supports the conclusion that both isolates represent new species. Phylogenetic analysis and comparison of cellular fatty acid patterns indicated that strain ING2 E5BT cannot be classified as member of any previously described genus. Thus, due to physiological, genotypic and chemotaxonomic differences it is proposed to designate two new species within the genera Proteinip...Continue Reading

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Citations

Feb 21, 2018·International Journal of Systematic and Evolutionary Microbiology·Sarah HahnkeMichael Klocke
Apr 24, 2018·Standards in Genomic Sciences·Mamadou BeyePierre-Edouard Fournier
Jun 5, 2019·Applied Microbiology and Biotechnology·Masanori FujimotoPatrick J McNamara
Oct 15, 2019·Frontiers in Microbiology·Marina García-LópezMarkus Göker
May 20, 2017·Biotechnology for Biofuels·Jutta SpedaMartin Karlsson
Oct 21, 2020·International Journal of Environmental Research and Public Health·Shuhei MatsudaTakashi Ohtsuki
Oct 6, 2018·Microorganisms·Susanne GüntherChristian Wilhelm
Nov 25, 2020·The Science of the Total Environment·Farrukh Raza AminRuihong Zhang
Jun 12, 2021·Frontiers in Microbiology·Mads Borgbjerg JensenMichael Vedel Wegener Kofoed

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