Alteromonas australica sp. nov., isolated from the Tasman Sea

Ivanova, Elena P.; Ng, Hooi Jun; Webb, Hayden K.; Kurilenko, Valeriya V.; Zhukova, Natalia V.; Mikhailov, Valery V.; Понаморева, О. Н.; Crawford, Russell J.

doi:10.1007/s10482-012-9869-x

Cited by 37 publications

(21 citation statements)

References 31 publications

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“…We have assembled into a single contig the genome of the two isolates, A. australica H17 T [10] isolated from the Tasman Sea and A. australica DE170 from the South Adriatic (16000 km away). The general features of the strains and the comparison with other members from the Alteromonas genus sequenced thus far are shown in Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…From the same sample several other strains were isolated. The characterization by PCR amplification of their 16S rRNA gene classified one of them as belonging (99% identity) to the recently described species Alteromonas australica [10]. This bacterium (strain H17 T ) was collected from the first meters below the surface at St. Kilda beach, in Port Phillip Bay (Tasman Sea, Pacific Ocean).…”

Section: Introductionmentioning

confidence: 99%

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Genomes of Alteromonas australica,a world apart

et al. 2014

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BackgroundAlteromonas is a genus of marine bacteria that is very easy to isolate and grow in the laboratory. There are genomes available of the species Alteromonas macleodii from different locations around the world and an Alteromonas sp. isolated from a sediment in Korea. We have analyzed the genomes of two strains classified by 16S rRNA (>99% similarity) as the recently described species Alteromonas australica, and isolated from opposite ends of the world; A. australica DE170 was isolated in the South Adriatic (Mediterranean) at 1000 m depth while A. australica H17T was isolated from a sea water sample collected in St Kilda Beach, Tasman Sea.ResultsAlthough these two strains belong to a clearly different species from A. macleodii, the overall synteny is well preserved and the flexible genomic islands seem to code for equivalent functions and be located at similar positions. Actually the genomes of all the Alteromonas species known to date seem to preserve synteny quite well with the only exception of the sediment isolate SN2. Among the specific metabolic features found for the A. australica isolates there is the degradation of xylan and production of cellulose as extracellular polymeric substance by DE170 or the potential ethanol/methanol degradation by H17T.ConclusionsThe genomes of the two A. australica isolates are not more different than those of strains of A. macleodii isolated from the same sample. Actually the recruitment from metagenomes indicates that all the available genomes are found in most tropical-temperate marine samples analyzed and that they live in consortia of several species and multiple clones within each. Overall the hydrolytic activities of the Alteromonas genus as a whole are impressive and fit with its known capabilities to exploit sudden inputs of organic matter in their environment.Electronic supplementary materialThe online version of this article (doi:10.1186/1471-2164-15-483) contains supplementary material, which is available to authorized users.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genomes of Alteromonas australica,a world apart

et al. 2014

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“…In total, 29 of such strains were obtained from 9 water samples. These strains were very close to A. australica from the Tasman Sea, 27 A. marina from the East Sea in Korea, 28 A. genovensis from a marine electroactive biofilm in the port of Genoa, Italy, 29 A. macleodii in the Mediterranean Sea 30 and A. litorea from an intertidal sediment of the Yellow Sea in Korea. 31 R120, obtained from CTD11 at a depth of 2700 m, was the only strain belonging to the class of Bacilli, and showed 100% homology with Bacillus safensis FO-036b T (AF234854).…”

Section: Discussionmentioning

confidence: 70%

Diversity of culturable bacteria in deep-sea water from the South Atlantic Ocean

Wang

Yan

et al. 2017

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The variability of culturable bacterial diversity and distribution was studied by phylogenetic analysis of 16S rRNA sequences. Seventeen water samples were examined and were collected, from different depths in the range of 5 m to 2700 m at 3 sampling sites (CTD06, CTD10 and CTD11) in the South Atlantic Ocean. Phylogenetic analysis of 16S rRNA gene sequences revealed a significant diversity of culturable bacteria. A total of 247 strains clustered into 8 classes: g-Proteobacteria, a-Proteobacteria, Actinobacteria, Actinomycetales, Bacilli, Flavobacteria, Opitutae and Sphingobacteria. The 17 water samples were dominated by populations of strains belonging to the genus Erythrobacter (16.60%). Of the 247 strains, 10 were potential new species and might form a minor population in the deep sea. To our knowledge, this is the first report to analyze the diversity of culturable bacteria in the South Atlantic Ocean from different depths across the water column.

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“…Bacteria of the genus Alteromonas represent one of the oldest known genera of Gram-negative, strictly aerobic, 39 heterotrophic marine bacteria [1]. The genus is primarily marine with examples found in a wide range of oceanic 40 ecosystems ranging from surface waters and sea ice to abyssal sediments.…”

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confidence: 99%