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algoriphagus ratkowskyi gen. nov., sp. nov., brumimicrobium glaciale gen. nov., sp. nov., cryomorpha ignava gen. nov., sp. nov. and crocinitomix catalasitica gen. nov., sp. nov., novel flavobacteria isolated from various polar habitats.several cold-adapted strains isolated from a variety of algal-rich antarctic and southern ocean samples formed three distinct groups within the class flavobacteria, phylogenetically distant from other cultivated species. the first taxon, designated algoriphagus ratkowskyi gen. nov., sp. nov., was isolated from sea ice and from saline lake cyanobacterial mats and includes non-motile, strictly aerobic, saccharolytic rod-like or serpentine strains that were most closely related to the genus cycloba ...200313130017
hongiella mannitolivorans gen. nov., sp. nov., hongiella halophila sp. nov. and hongiella ornithinivorans sp. nov., isolated from tidal flat sediment.three marine strains of the cytophaga-flavobacterium-bacteroides group, designated jc2050t, jc2051t and jc2052t, were obtained from a single sediment sample of getbol, the korean tidal flat. comparative 16s rdna sequence studies revealed that the test strains were not closely related to any validly published genera and that these strains were only distantly related to the genus cyclobacterium (88.7-91.2%). phylogenetic analyses demonstrated that the three getbol isolates formed a distinct monoph ...200414742474
description of algoriphagus aquimarinus sp. nov., algoriphagus chordae sp. nov. and algoriphagus winogradskyi sp. nov., from sea water and algae, transfer of hongiella halophila yi and chun 2004 to the genus algoriphagus as algoriphagus halophilus comb. nov. and emended descriptions of the genera algoriphagus bowman et al. 2003 and hongiella yi and chun 2004.four marine heterotrophic, aerobic, pink-pigmented and non-motile bacterial strains were isolated from sea water and algae collected in the sea of japan. in a polyphasic taxonomic study, 16s rrna gene sequence analysis indicated that the strains were phylogenetically highly related to algoriphagus ratkowskyi lmg 21435t, a member of the phylum bacteroidetes. further phenotypic, chemotaxonomic and genomic analyses revealed that the strains represent three novel species of the genus algoriphagus, f ...200415388741
hongiella marincola sp. nov., isolated from sea water of the east sea in korea.two gram-negative, non-motile, non-spore-forming, rod-shaped strains, sw-2t and sw-26, were isolated from sea water of the east sea in korea. these organisms grew optimally at 37 degrees c and in the presence of 2-3 % (w/v) nacl. they did not grow without nacl or in the presence of >9 % (w/v) nacl. strains sw-2t and sw-26 were characterized chemotaxonomically as having mk-7 as the predominant isoprenoid quinone and iso-c(15 : 0) as the major fatty acid. the dna g + c content of strains sw-2t and ...200415388753
algoriphagus antarcticus sp. nov., a novel psychrophile from microbial mats in antarctic lakes.a taxonomic study was performed on six strains isolated from microbial mats of lakes reid, fryxell and ace in antarctica. phylogenetic analysis based on 16s rrna gene sequences indicated that these strains belonged to the family 'flexibacteraceae' and were closely related to the recently described genera algoriphagus and hongiella. the isolates were gram-negative, chemoheterotrophic, aerobic, psychrophilic, orange-red-pigmented bacteria and their dna g+c content ranged from 39.9 to 41.0 mol%. wh ...200415545419
algoriphagus yeomjeoni sp. nov., isolated from a marine solar saltern in the yellow sea, korea.two gram-negative, rod-shaped bacterial strains, mss-160(t) and mss-161, were isolated from a marine solar saltern in the yellow sea, korea, and subjected to a polyphasic taxonomic study. the two strains grew optimally in the presence of 2 % (w/v) nacl and at 25-30 degrees c. strains mss-160(t) and mss-161 contained mk-7 as the predominant menaquinone and large amounts of fatty acids c(16 : 1)omega7c and/or iso-c(15 : 0) 2-oh and iso-c(15 : 0). the dna g+c content of the two strains was 41 mol%. ...200515774676
algoriphagus locisalis sp. nov., isolated from a marine solar saltern.two gram-negative, rod-shaped, non-motile bacterial strains, mss-170(t) and mss-171, were isolated from sea water of a marine solar saltern of the yellow sea, korea, and characterized by using a polyphasic taxonomic approach. the two isolates grew optimally at 30 degrees c and in the presence of 2% (w/v) nacl. they were characterized chemotaxonomically as having mk-7 as the predominant menaquinone and major amounts of fatty acids iso-c(15:0) and c(16:1)omega7c and/or iso-c(15:0) 2-oh. the dna g+ ...200516014494
chimaereicella alkaliphila gen. nov., sp. nov., a gram-negative alkaliphilic bacterium isolated from a nonsaline alkaline groundwater.a gram-negative bacterium designated ac-74(t) was isolated from a highly alkaline groundwater environment (ph 11.4). this organism formed rod-shaped cells, is strictly aerobic, catalase and oxidase positive, tolerates up to 3.0% nacl, has an optimum growth temperature of 30 degrees c, but no growth occurs at 10 or 40 degrees c, and an optimum ph value of 8.0, but no growth occurs at ph 7.0 or 11.3. the predominant fatty acids are iso-15:0, iso-17:1 omega9c and 16:1 omega7c and or iso-15:2oh. the ...200616464691
algoriphagus terrigena sp. nov., isolated from soil.a gram-negative, non-motile, non-spore-forming bacterial strain, ds-44t, was isolated from soil from dokdo in korea, and its taxonomic position was investigated by using a polyphasic approach. it grew optimally at 25 degrees c and in the presence of 2 % (w/v) nacl. strain ds-44t contained mk-7 as the predominant menaquinone and iso-c(15 : 0) and c(16 : 1)omega7c and/or iso-c(15 : 0) 2-oh as the major fatty acids. the dna g+c content was 49.0 mol%. phylogenetic analyses based on 16s rrna gene seq ...200616585693
a carotenoid synthesis gene cluster from algoriphagus sp. kk10202c with a novel fusion-type lycopene beta-cyclase gene.a carotenoid synthesis gene cluster was isolated from a marine bacterium algoriphagus sp. strain kk10202c that synthesized flexixanthin. seven genes were transcribed in the same direction, among which five of them were involved in carotenoid synthesis. this cluster had a unique gene organization, with an isoprenoid gene, isph (previously named lytb), being present among the carotenoid synthesis genes. the lycopene beta-cyclase encoded by the crty ( cd ) gene appeared to be a fusion of bacterial ...200616625353
echinicola pacifica gen. nov., sp. nov., a novel flexibacterium isolated from the sea urchin strongylocentrotus intermedius.the taxonomic position of three novel marine, heterotrophic, pigmented and agarolytic bacteria with gliding motility, isolated from the sea urchin strongylocentrotus intermedius, was investigated. 16s rrna gene sequence analysis revealed that strains kmm 6166, kmm 6172t and kmm 6173 are members of the phylum bacteroidetes; their nearest neighbours were belliella baltica and hongiella marincola (similarities of 94.5 and 93.6 %, respectively). the dna g+c content of the strains was 44-45 mol%. the ...200616627637
chimaereicella boritolerans sp. nov., a boron-tolerant and alkaliphilic bacterium of the family flavobacteriaceae isolated from soil.a non-motile, gram-negative, boron-tolerant and alkaliphilic bacterium was isolated from soil of the hisarcik area in the kutahya province of turkey that was naturally high in boron minerals. the novel isolate, designated t-22(t), formed rod-shaped cells, was catalase- and oxidase-positive and tolerated up to 300 mm boron. the strain also survived on agar medium containing up to 3 % (w/v) nacl. the ph range for growth of this strain was 6.5-10.0 (optimum ph 8.0-9.0) and the temperature range was ...200717473246
proposal of algoriphagus vanfongensis sp. nov., transfer of members of the genera hongiella yi and chun 2004 emend. nedashkovskaya et al. 2004 and chimaereicella tiago et al. 2006 to the genus algoriphagus, and emended description of the genus algoriphagus bowman et al. 2003 emend. nedashkovskaya et al. 2004.a taxonomic study of a novel marine, heterotrophic, non-gliding, halotolerant and light-pink-pigmented bacterium was carried out using a polyphasic approach. 16s rrna gene sequence analysis revealed that strain kmm 6241(t) is a member of the phylum bacteroidetes. strain kmm 6241(t) formed a cluster with the genera algoriphagus, chimaereicella and hongiella with sequence similarities of 94.0-98.2 %. hongiella ornithinivorans was the closest relative of the novel isolate. comparative analysis of p ...200717766860
algoriphagus hitonicola sp. nov., isolated from an athalassohaline lagoon.a gram-negative, heterotrophic, aerobic, reddish-orange-pigmented, non-spore-forming, non-motile bacterial strain, designated 7-uah(t), was isolated from salty water from the athalassohaline lagoon at el hito, located in central spain. the strain grew optimally at 37 degrees c and ph 7.0 and in the presence of 2.5 % nacl. a polyphasic taxonomic study was carried out in order to characterize the strain in detail. phylogenetic analyses based on 16s rrna gene sequence comparisons indicated that str ...200818218943
algoriphagus aquatilis sp. nov., isolated from a freshwater lake.a gram-negative, non-spore-forming, non-motile bacterium, strain a8-7(t), was isolated from fresh water of a slightly alkaline lake, longhu lake, in daqing, north-east china, and its taxonomic position was studied by using a polyphasic approach. strain a8-7(t) was aerobic, heterotrophic and positive for catalase and oxidase. it grew at 20-37 degrees c (optimum 30 degrees c) and ph 5.5-10.5 (optimum ph 7.5) and in the presence of 0-3 % (w/v) nacl. it formed pink-pigmented, smooth and circular col ...200919542135
algoriphagus olei sp. nov., isolated from oil-contaminated soil.a motile, gram-negative, pinkish red-pigmented bacterium (strain cc-hsuan-617(t)) was isolated from an oil-contaminated soil near an oil refinery located in kaohsiung county, taiwan. 16s rrna gene sequence analysis showed that strain cc-hsuan-617(t) clustered with algoriphagus mannitolivorans (97.5 % sequence similarity), algoriphagus aquatilis (98.0 %) and algoriphagus boritolerans (97.5 %), followed by algoriphagus ornithinivorans (97.1 %) and algoriphagus alkaliphilus (97.1 %). the fatty acid ...200919628616
algoriphagus lutimaris sp. nov., isolated from a tidal flat sediment.a gram-negative, non-motile, non-spore-forming bacterial strain, s1-3(t), was isolated from a tidal flat sediment on the west coast of korea and its taxonomic position was investigated. strain s1-3(t) grew optimally at 30 degrees c and in the presence of 2 % (w/v) nacl. strain s1-3(t) contained mk-7 as the predominant menaquinone and c(16 : 1)omega7c and/or iso-c(15 : 0) 2-oh and iso-c(15 : 0) as the major fatty acids. the dna g+c content was 41.4 mol%. phylogenetic analyses based on 16s rrna ge ...201019648320
indibacter alkaliphilus gen. nov., sp. nov., a novel alkaliphilic bacterium isolated from haloalkaline lonar lake, india.a novel gram-negative, rod shaped, non-motile bacterium, strain lw1t, was isolated from a water sample collected at a depth of 3.5 m from the lonar lake of buldhana district, maharastra, india. the cell suspension was reddish-orange due to the presence of carotenoids. cells of the strain lw1t are positive for catalase, oxidase, ornithine decarboxylase and lysine decarboxylase and negative for gelatinase, urease and lipase. the fatty acids were dominated by branched-chain fatty acids (>76 %), wit ...200919656931
fontibacter flavus gen. nov., sp. nov., a member of the family 'cyclobacteriaceae', isolated from a hot spring.the taxonomic position of a bright orange-pigmented bacterial strain, designated cc-gzm-130(t), isolated from a water sample of the guan-zing-ling hot spring, southern taiwan, was studied. the strain was able to grow on nutrient agar at 25-40 degrees c and in the presence of 1-3 % (w/v) nacl. comparative analyses of the 16s rrna gene sequence showed that the isolate was grouped in the vicinity of the genus aquiflexum with the highest sequence similarity of 92.1 % to the type strain of aquiflexum ...201019819991
mechanism of boron tolerance in soil bacteria.boron (b) is toxic to living cells at levels above a certain threshold. we isolated several b-tolerant bacterial strains from soil samples and studied them for possible mechanisms of b tolerance. 16s rrna gene sequencing and comparative phylogenetic analysis demonstrated that the isolates belong to the following 6 genera: arthrobacter, rhodococcus, lysinibacillus, algoriphagus, gracilibacillus, and bacillus. these isolates exhibited b-tolerance levels of 80, 100, 150, 300, 450, and 450 mmol/l, r ...201020130690
indibacter alkaliphilus gen. nov., sp. nov., an alkaliphilic bacterium isolated from a haloalkaline lake.a novel gram-stain-negative, rod-shaped, non-motile bacterium, strain lw1(t), was isolated from a water sample collected at a depth of 3.5 m from lonar lake, buldhana district, maharashtra, india. the cell suspension was reddish-orange due to the presence of carotenoids. strain lw1(t) was positive for catalase, oxidase, ornithine decarboxylase and lysine decarboxylase and negative for gelatinase, urease and lipase. fatty acids were dominated by branched-chain fatty acids (>76 %), with a high abu ...201020371870
complete genome sequence of algoriphagus sp. pr1, bacterial prey of a colony-forming choanoflagellate.bacteria are the primary food source of choanoflagellates, the closest known relatives of animals. studying signaling interactions between the gram-negative bacteroidetes bacterium algoriphagus sp. pr1 and its predator, the choanoflagellate salpingoeca rosetta, provides a promising avenue for testing hypotheses regarding the involvement of bacteria in animal evolution. here we announce the complete genome sequence of algoriphagus sp. pr1 and initial findings from its annotation.201021183675
algoriphagus faecimaris sp. nov., a novel bacterium isolated from yellow sea coastal sediment, china.a gram-negative, non-motile, non-spore-forming bacterial strain, lyx05(t), was isolated from coastal sediment of qingdao, yellow sea, china. strain lyx05(t) was aerobic and heterotrophic. the strain grew optimally at 37° c and ph 7.5 and in the presence of 2% (w/v) nacl. colonies are 1-2 mm in diameter, circular, reddish-orange-pigmented and shiny with entire edges on marine agar medium. cells are rods, range from 0.3 to 0.5 µm in width and 0.8 to 1.6 µm in length. the dominant fatty acids were ...201121257690
algoriphagus jejuensis sp. nov., isolated from seawater.a gram-negative, pink-pigmented, non-motile, strictly aerobic, rod-shaped bacterium, designated cnu040t, was isolated from seawater on the coast of jeju island in korea, and subjected to a polyphasic taxonomic study. the temperature, ph and nacl ranges for growth were 4-30 °c, ph 5.5-10.0 and 0-5.0 %, respectively. phylogenetic analysis based on 16s rrna gene sequences indicated that strain cnu040t belongs to a distinct lineage in the genus algoriphagus, with high sequence similarity to algoriph ...201121460141
algoriphagus namhaensis sp. nov., isolated from seawater of the south sea in korea.a gram-staining-negative, non-motile, non-spore-forming bacterial strain, dpg-3t, was isolated from seawater of the south sea in korea, and its taxonomic position was investigated by using a polyphasic study. strain dpg-3t grew optimally at 30 °c and in the presence of 2 % (w/v) nacl. neighbour-joining phylogenetic tree based on 16s rrna gene sequences revealed that strain dpg-3t fell within the clade comprising algoriphagus species, clustering with algoriphagus halophilus jc2051t and algoriphag ...201121515706
algoriphagus aquaeductus sp. nov., isolated from a freshwater pipe.a gram-negative, aerobic to microaerophilic, rod-shaped, red-colored bacterium, strain t4(t), was isolated from a freshwater pipe on tenerife island. a polyphasic taxonomic study was performed in order to characterise the strain in detail. the isolate is surrounded by a slime capsula and occurs single, in form of short chains, or in aggregates and exhibits catalase and oxidase activities. growth was observed at 15-42 °c. best growth of the bacterium occurred at ph 8 with mono- and disaccharides, ...201121551331
evidence for horizontal gene transfer from bacteroidetes bacteria to dinoflagellate minicircles.dinoflagellate protists harbor a characteristic peridinin-containing plastid that evolved from a red or haptophyte alga. in contrast to typical plastids that have ∼100-200 kb circular genomes, the dinoflagellate plastid genome is composed of minicircles that each encode 0-5 genes. it is commonly assumed that dinoflagellate minicircles are derived from a standard plastid genome through drastic reduction and fragmentation. however, we demonstrate that the ycf16 and ycf24 genes (encoded on the cera ...201122075114
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