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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 75, Issue 5

gen. nov., sp. nov., a facultatively autotrophic bacterium from environmental water samples No Access

Abstract

A Gram-stain-negative coccobacillus, LMG 32992, was isolated from water that had collected in a tyre in Pingtung, Donggang Township, Taiwan. Upon preliminary 16S rRNA gene sequence analysis, it was most closely related to members of the genus (16S rRNA gene sequence similarities of 96.7–97.5%). The present study aimed to elucidate its taxonomic position and to propose a formal classification. To this end, the complete genome sequence was determined, and taxonomic, phylogenomic, metabolic and physiological analyses were performed. Comparative genomic analyses demonstrated that strain LMG 32992 and another unclassified strain, bacterium PBA, which was isolated earlier from textile wastewater in Malaysia, represented a single novel species within a novel genus of the family . The G+C content of the LMG 32992 genomic DNA was 63.77 mol%. Genomic analyses and growth tests demonstrated that LMG 32992 had an asaccharolytic metabolism but that it was well-equipped to synthetize, if necessary autotrophically, and transform all required carbohydrates and that it used the Krebs and related cycles to generate reductive power for a heterotrophic energy metabolism. We propose the name gen. nov., sp. nov. with strain LMG 32992 (=CIP 112179=BCRC 81361=A30B1) as the type strain, for this novel taxon.

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Keyword(s): biodegradation , comparative genomics , Cupriavidus , Imbroritus primus , phylogenomics and Ralstonia
© 2025 The Authors
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2025-05-13
2026-02-13

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Imbroritus primus gen. nov., sp. nov., a facultatively autotrophic bacterium from environmental water samples
Int J Syst Evol Microbiol 75, 006781 (2025); https://doi.org/10.1099/ijsem.0.006781
/content/journal/ijsem/10.1099/ijsem.0.006781
/content/journal/ijsem/10.1099/ijsem.0.006781
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