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Nucleotide sequence of the lantibiotic Pep5 biosynthetic gene cluster and functional analysis of PepP and PepC. Evidence for a role of PepC in thioether formation.
TLDR
It is demonstrated that PepC is a thioether-forming protein and strongly suggest that PepB is responsible for dehydration of serine and threonine in the cells without excretion of processed peptide.
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Phylogenetic relationships among the Chromatiaceae, their taxonomic reclassification and description of the new genera Allochromatium, Halochromatium, Isochromatium, Marichromatium, Thiococcus,…
TLDR
A genetic divergence between Chromatium species originated from freshwater sources and those of truly marine and halophilic nature was revealed and a reclassification is proposed on the basis of 16S rDNA sequence similarity supported by selected phenotypic properties.
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The phylogenetic relationship among Ectothiorhodospiraceae: a reevaluation of their taxonomy on the basis of 16S rDNA analyses
Abstract Sequences of the 16S rRNA gene were determined from all type strains of the recognized Ectothiorhodospira species and from a number of additional strains. For the first time, these data…
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Thiorhodospira sibirica gen. nov., sp. nov., a new alkaliphilic purple sulfur bacterium from a Siberian soda lake.
TLDR
A new purple sulfur bacterium was isolated from microbial films on decaying plant mass in the near-shore area of the soda lake Malyi Kasytui and recognized as a new species of a new genus with the proposed name Thiorhodospira sibirica.
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Reclassification of species of the spiral-shaped phototrophic purple non-sulfur bacteria of the alpha-Proteobacteria: description of the new genera Phaeospirillum gen. nov., Rhodovibrio gen. nov.,…
TLDR
The 165 rDNA sequence of Rhodospirillum mediosalinum was determined and compared with corresponding sequences from other spiral-shaped purple non-sulfur bacteria classified as or related to the genus Rhodospira in the alpha subclass of the Proteobacteria, indicating the necessity to recognize these groups as different genera.
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Rhodospira trueperi gen. nov., spec. nov., a new phototrophic Proteobacterium of the alpha group
TLDR
A new phototrophic purple bacterium was isolated from a flat, laminated microbial mat in a salt marsh near Woods Hole, Mass., USA and assigned to a new genus with the proposed name Rhodospira trueperi, most similar to Rhodospirillum rubrum.
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Thiocapsa marina sp. nov., a novel, okenone-containing, purple sulfur bacterium isolated from brackish coastal and marine environments.
TLDR
According to phenotypic characteristics and mainly the carotenoid composition, 16S rDNA sequence analysis and DNA-DNA hybridization data, it is proposed that these strains should be classified as a novel species, Thiocapsa marina sp.
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16s rDNA-based phylogeny of sulphur-oxidising bacterial endosymbionts in marine bivalves from cold-seep habitats
TLDR
The results corroborate the hypothesis of a monophyletic origin of the symbionts in vesicomyid clams, and support the existence of deeply branching groups in solemyid symbiont groups and of divergent lines and distribution for thyasirid Symbionts.
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Presence of two phylogenetically distinct groups in the deep-sea mussel Acharax Mollusca: Bivalvia: Solemyidae
TLDR
Analysis of 18S rRNA gene sequences of Acharax specimens from methane-seeps off Makran, Java, the Aleutian Trench and off the Oregon, Costa Rica, and Peru margins revealed that Solemya spp.
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Young volcanism and related hydrothermal activity at 5°S on the slow‐spreading southern Mid‐Atlantic Ridge
The effect of volcanic activity on submarine hydrothermal systems has been well documented along fast‐ and intermediate‐spreading centers but not from slow‐spreading ridges. Indeed, volcanic…
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