Rudanella lutea gen. nov., sp. nov., isolated from an air sample in Korea

Weon, Hang-Yeon; Noh, Hyung-Jun; Son, Jung-A; Jang, Han Byul; Kim, Byung-Yong; Kwon, Soon-Wo; Stackebrandt, Erko

doi:10.1099/ijs.0.65358-0

Cited by 25 publications

(8 citation statements)

References 14 publications

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“…Only one isolate, designated strain SM-1, was confirmed to have robust As methylation ability. The strain was an aerobic oligotrophic bacterium; it grew better in R 2 A medium 35 than in ST10 −1 medium but could not grow in LB medium.…”

Section: Resultsmentioning

confidence: 99%

Efficient Arsenic Methylation and Volatilization Mediated by a Novel Bacterium from an Arsenic-Contaminated Paddy Soil

Huang

Chen

Zhang

et al. 2016

Environ. Sci. Technol.

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Microbial arsenic (As) methylation and volatilization are important processes controlling the As biogeochemical cycle in paddy soils. To further understand these processes, we isolated a novel bacterial strain, SM-1, from an As-contaminated paddy soil. SM-1 showed strong As methylation and volatilization abilities, converting almost all arsenite (10 µM) to dimethylarsenate and trimethylarsenic oxide in the medium and trimethylarsine gas into the headspace within 24 h, with trimethylarsine accounting for nearly half of the total As. On the basis of the 16S rRNA sequence, strain SM-1 represents a new species in a new genus within the family Cytophagaceae. Strain SM-1 is abundant in the paddy soil and inoculation of SM-1 greatly enhanced As methylation and volatilization in the soil. An arsenite methyltransferase gene (ArarsM) was cloned from SM-1. When expressed in Escherichia coli, ArArsM conferred the As methylation and volatilization abilities to E. coli and increased its resistance to arsenite. The high As methylation and volatilization abilities of SM-1 are likely attributed to an efficient ArArsM enzyme coupled with low arsenite efflux. These results suggest that strain SM-1 plays an important role in As methylation and volatilization in the paddy soil and has a great potential for As bioremediation.

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Section: Resultsmentioning

confidence: 99%

Efficient Arsenic Methylation and Volatilization Mediated by a Novel Bacterium from an Arsenic-Contaminated Paddy Soil

Huang

Chen

Zhang

et al. 2016

Environ. Sci. Technol.

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“…The heterotrophic strains used in the experiments were Rudanella lutea DSM 19387 T [65] and two new bacteria isolated from a mud sample from tidal flats in Fedderwardersiel, on the North Sea coast of Germany, Fibrella aestuarina BUZ 2 T [66] and strain Fibrisoma limi BUZ 3 T [67]. The autotrophic strains were two axenic cyanobacteria, Nostoc muscorum SAG 25.82 (identical strains ATCC 27893; PCC 7120) and Anabaena variabilis SAG 1403-4b (identical strains CCAP 1403/4B; UTEX 377; ATCC 29211; PCC 6309).…”

Section: Methodsmentioning

confidence: 99%

Emergent multicellular life cycles in filamentous bacteria owing to density-dependent population dynamics

Rossetti

Filippini

Švercel

et al. 2011

J. R. Soc. Interface.

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Filamentous bacteria are the oldest and simplest known multicellular life forms. By using computer simulations and experiments that address cell division in a filamentous context, we investigate some of the ecological factors that can lead to the emergence of a multicellular life cycle in filamentous life forms. The model predicts that if cell division and death rates are dependent on the density of cells in a population, a predictable cycle between short and long filament lengths is produced. During exponential growth, there will be a predominance of multicellular filaments, while at carrying capacity, the population converges to a predominance of short filaments and single cells. Model predictions are experimentally tested and confirmed in cultures of heterotrophic and phototrophic bacterial species. Furthermore, by developing a formulation of generation time in bacterial populations, it is shown that changes in generation time can alter length distributions. The theory predicts that given the same population growth curve and fitness, species with longer generation times have longer filaments during comparable population growth phases. Characterization of the environmental dependence of morphological properties such as length, and the number of cells per filament, helps in understanding the pre-existing conditions for the evolution of developmental cycles in simple multicellular organisms. Moreover, the theoretical prediction that strains with the same fitness can exhibit different lengths at comparable growth phases has important implications. It demonstrates that differences in fitness attributed to morphology are not the sole explanation for the evolution of life cycles dominated by multicellularity.

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“…The major isoprenoid quinone is menaquinone MK-7, a trace amount of menaquinone MK-8 was detected [1]. The polar lipids of L. byssophila have not been determined, but for a number of other taxa, including Rudanella lutea 5715S-11 T , S. linguale DSM 74 T , Larkinella insperata LMG 22510 T and some members of the genus Sphingobacterium and Parapedobacter [29,30] the presence of phosphatidylethanolamine as the major (diglyceride based) phospholipid and a number of not further characterized lipids and amino lipids provide useful taxonomic and evolutionary markers [31]. …”

Section: Classification and Featuresmentioning

confidence: 99%

Complete genome sequence of Leadbetterella byssophila type strain (4M15T)

Abt

Teshima

Lucas

et al. 2011

Stand. Genomic Sci.

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Leadbetterella byssophila Weon et al. 2005 is the type species of the genus Leadbetterella of the family Cytophagaceae in the phylum Bacteroidetes. Members of the phylum Bacteroidetes are widely distributed in nature, especially in aquatic environments. They are of special interest for their ability to degrade complex biopolymers. L. byssophila occupies a rather isolated position in the tree of life and is characterized by its ability to hydrolyze starch and gelatine, but not agar, cellulose or chitin. Here we describe the features of this organism, together with the complete genome sequence, and annotation. L. byssophila is already the 16th member of the family Cytophagaceae whose genome has been sequenced. The 4,059,653 bp long single replicon genome with its 3,613 protein-coding and 53 RNA genes is part of the Genomic Encyclopedia of Bacteria and Archaea project.

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Rudanella lutea gen. nov., sp. nov., isolated from an air sample in Korea

Cited by 25 publications

References 14 publications

Efficient Arsenic Methylation and Volatilization Mediated by a Novel Bacterium from an Arsenic-Contaminated Paddy Soil

Efficient Arsenic Methylation and Volatilization Mediated by a Novel Bacterium from an Arsenic-Contaminated Paddy Soil

Emergent multicellular life cycles in filamentous bacteria owing to density-dependent population dynamics

Complete genome sequence of Leadbetterella byssophila type strain (4M15T)

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