Further Readings in Geomicrobiology

Allgaier, Martin; Uphoff, H; Felske, Andreas; Wagner‐Döbler, Irene

doi:10.1080/01490450490270087

Cited by 30 publications

(50 citation statements)

References 52 publications

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“…The two strains investigated were obtained from washed single cells of cultivated marine dinoflagellates plated onto an agar surface (Allgaier et al, 2003). Strain DFL 12 T was isolated from cells of Prorocentrum lima on a sea water medium containing 1 g tryptone and 0?5 g yeast extract per litre; strain DFL 27 was isolated from Alexandrium ostenfeldii on a sea water medium containing 40 mg peptone and 8 mg yeast extract per litre.…”

Section: Methodsmentioning

confidence: 99%

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Dinoroseobacter shibae gen. nov., sp. nov., a new aerobic phototrophic bacterium isolated from dinoflagellates

Biebl¹,

Allgaier²,

Tindall

et al. 2005

International Journal of Systematic and Evolutionary Microbiology

185

182

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A novel group of aerobic anoxygenic phototrophic bacteria was isolated from marine dinoflagellates, and two strains were characterized in detail. Cells were Gram-negative cocci or ovoid rods and were motile by means of a single, polarly inserted flagellum. They were obligate aerobes requiring 1-7 % salinity. The optimal pH range for growth was 6?5-9?0 and the temperature optimum was 33 6C. The bacteria contained bacteriochlorophyll a and spheroidenone as the only carotenoid. The in vivo absorption spectrum displayed two maxima in the infrared region at 804 and 868 nm. The distinct 804 nm band indicates the presence of light-harvesting system 2. Various organic carbon sources were assimilated, including many carboxylic acids, glucose and glycerol, but not butyrate, ethanol or methanol. Dissimilatory nitrate reduction was found for both strains. The physiological characteristics of the new strains resembled those of Roseobacter denitrificans, but there were differences in the lipid composition. Based on 16S rRNA gene sequence analysis the new strains are relatively distant from other recognized species, with the closest relatives Jannaschia helgolandensis, Ruegeria atlantica and Rhodobacter veldkampii showing 94?1-93?4 % similarity. Similarity to Roseobacter denitrificans was only 92?2 %, in line with numerous other species of the Roseobacter group. Therefore, it is proposed to classify the strains in a new genus and species within the Roseobacter clade, Dinoroseobacter shibae gen. nov., sp. nov. The type strain is DFL 12 T (=DSM 16493 T =NCIMB 14021 T ).

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Section: Methodsmentioning

confidence: 99%

“…Recently we surveyed a greater number of marine habitats for the presence of pigmented bacterial strains (Allgaier et al, 2003). Putative photosynthetic activity was tested by probing for the presence of the pufL and pufM genes.…”

Section: Introductionmentioning

confidence: 99%

Dinoroseobacter shibae gen. nov., sp. nov., a new aerobic phototrophic bacterium isolated from dinoflagellates

Biebl¹,

Allgaier²,

Tindall

et al. 2005

International Journal of Systematic and Evolutionary Microbiology

185

182

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“…Members of the Roseobacter clade have been isolated from a wide variety of habitats and are physiologically diverse (Brinkoff et al, 2008), with marine strains having unique traits in carbon and sulfur sequestration, such as aerobic anoxygenic photosynthesis, carbon monoxide oxidation and dimethylsulfoniopropionate degradation (Allgaier et al, 2003;Moran et al, 2003Moran et al, , 2004Miller and Belas, 2004). Although the most abundantly detected Roseobacter proteins, such as GroEL, TufB and ribosomal proteins, tended to have housekeeping functions, proteins involved in amino acid, sugar and proline/glycine betaine transport were also frequently observed.…”

Section: Frequently Detected Proteinsmentioning

confidence: 99%

Environmental proteomics of microbial plankton in a highly productive coastal upwelling system

et al. 2010

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Metaproteomics is one of a suite of new approaches providing insights into the activities of microorganisms in natural environments. Proteins, the final products of gene expression, indicate cellular priorities, taking into account both transcriptional and posttranscriptional control mechanisms that control adaptive responses. Here, we report the proteomic composition of the o 1.2 lm fraction of a microbial community from Oregon coast summer surface waters, detected with two-dimensional liquid chromatography coupled with electrospray tandem mass spectrometry. Spectra corresponding to proteins involved in protein folding and biosynthesis, transport, and viral capsid structure were the most frequently detected. A total of 36% of all the detected proteins were best matches to the SAR11 clade, and other abundant coastal microbial clades were also well represented, including the Roseobacter clade (17%), oligotrophic marine gammaproteobacteria group (6%), OM43 clade (1%). Viral origins were attributed to 2.5% of proteins. In contrast to oligotrophic waters, phosphate transporters were not highly detected in this nutrient-rich system. However, transporters for amino acids, taurine, polyamines and glutamine synthetase were among the most highly detected proteins, supporting predictions that carbon and nitrogen are more limiting than phosphate in this environment. Intriguingly, one of the highly detected proteins was methanol dehydrogenase originating from the OM43 clade, providing further support for recent reports that the metabolism of one-carbon compounds by these streamlined methylotrophs might be an important feature of coastal ocean biogeochemistry.

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“…Antibiotic resistance, production of H 2 S and hydrolysis of starch were assessed as described by Dong & Cai (2001). Tests for cellular photosynthetic pigments were performed by extraction with acetone/methanol followed by spectrophotometric detection according to the methods of Biebl et al (2007) and Allgaier et al (2003). The amplification of pufLM genes from the photosynthetic reaction centre was performed with primers described by Allgaier et al (2003).…”

mentioning

confidence: 99%

Salinarimonas ramus sp. nov. and Tessaracoccus oleiagri sp. nov., isolated from a crude oil-contaminated saline soil

Cai

Wang

Cai

et al. 2011

International Journal of Systematic and Evolutionary Microbiology

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Four bacterial strains, SL014B-41A4T, SL014B-20A1T, SL014B-76A1 and SL014B-79A, isolated from a crude oil-contaminated saline soil of Shengli Oilfield, China, were investigated using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SL014B-41A4T belonged to the genus Salinarimonas in the order Rhizobiales, with the highest sequence similarity with Salinarimonas rosea YIM YD3T (98.3 %). The DNA–DNA relatedness of strain SL014B-41A4T to S. rosea YIM YD3T was 27.03±3.0 %. Strain SL014B-41A4T was Gram-negative staining, facultatively anaerobic and produced deep red pigment in artificial seawater medium. Cells of strain SL014B-41A4T were rod-shaped (0.6–4.0×1.25–25 µm), motile with a single polar flagellum and often formed branches. The strain contained Q-10 as the predominant respiratory ubiquinone and C18 : 1ω7c (57.5 %), C16 : 0 (16.4 %) and 10-methyl C19 : 0 (9.1 %) as the major fatty acids. Strains SL014B-20A1T, SL014B-76A1 and SL014B-79A were actinobacteria and belonged to the genus Tessaracoccus in the family Propionibacteriaceae of the order Actinomycetales with the highest 16S rRNA gene sequence similarities with Tessaracoccus flavescens SST-39T (96.4 %), Tessaracoccus lubricantis KISS-17SeT (96.2 %) and Tessaracoccus bendigoensis Ben 106T (94.7 %). Strains SL014B-20A1T, SL014B-76A1 and SL014B-79A were Gram-positive staining, facultatively anaerobic, non-endospore-forming, non-motile, acid-fast and oval to rod-shaped (0.48×0.5–1.0 µm). These three novel strains had ll-diaminopimelic acid (DAP) as the diagnostic diamino acid in the cell-wall peptidoglycan, MK-9(H4) as the only menaquinone and anteiso-C15 : 0 (67.11–76.14 %) as the major cellular fatty acid. The G+C contents of the genomic DNA of strain SL014B-41A4T and strains SL014B-20A1T, SL014B-76A1 and SL014B-79A were 67.68 mol% and 65.65–67.17 mol%, respectively. Based on phenotypic and genotypic characteristics, strain SL014B-41A4T represents a novel species of the genus Salinarimonas, for which the name Salinarimonas ramus is proposed, with strain SL014B-41A4T ( = DSM 22962T = CGMCC 1.9161T) as the type strain. Strains SL014B-20A1T, SL014B-76A1 and SL014B-79A represent a novel species of the genus Tessaracoccus, for which the name Tessaracoccus oleiagri is proposed, with strain SL014B-20A1T ( = DSM 22955T = CGMCC 1.9159T) as the type strain.

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Further Readings in Geomicrobiology

Cited by 30 publications

References 52 publications

Dinoroseobacter shibae gen. nov., sp. nov., a new aerobic phototrophic bacterium isolated from dinoflagellates

Dinoroseobacter shibae gen. nov., sp. nov., a new aerobic phototrophic bacterium isolated from dinoflagellates

Environmental proteomics of microbial plankton in a highly productive coastal upwelling system

Salinarimonas ramus sp. nov. and Tessaracoccus oleiagri sp. nov., isolated from a crude oil-contaminated saline soil

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