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Query: EC:3.1.3.1 (alkaline phosphatase)
 47,916 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A novel marine bacterium, strain KMM 6050T, was isolated from the sea urchin Strongylocentrotus intermedius, which inhabits the Sea of Japan. The strain studied was strictly aerobic, heterotrophic, yellow-orange-pigmented, motile by gliding, Gram-negative and oxidase-, catalase-, beta-galactosidase- and alkaline phosphatase-positive. The results of 16S rRNA gene sequence analysis showed that strain KMM 6050T occupies a distinct lineage within the family Flavobacteriaceae and is most closely related to the species Mesonia algae and Salegentibacter salegens (sequence similarity of 92.5-92.6 %). The DNA G+C content of KMM 6050T was 39.6 mol%. The major respiratory quinone was MK-6. The predominant fatty acids were i15 : 0, a15 : 0, 15 : 0, i16 : 1, i16 : 0, i16 : 0 3-OH and i17 : 0 3-OH. On the basis of phenotypic, chemotaxonomic, genotypic and phylogenetic characteristics, the novel bacterium has been assigned to the genus Gramella gen. nov., as Gramella echinicola sp. nov. The type strain is KMM 6050T (=KCTC 12278T=NBRC 100593T=LMG 22585T).
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PMID:Gramella echinicola gen. nov., sp. nov., a novel halophilic bacterium of the family Flavobacteriaceae isolated from the sea urchin Strongylocentrotus intermedius. 1565 6

A thermostable alkaline phosphatase with high specific activity and thermal resistance was purified from a novel species of Thermus sp. named as Thermus yunnanensis sp. nov. The enzyme contains a single peptide with a molecular mass of about 52 kDa on SDS-PAGE analysis and appears to be a homodimer in solution with the molecular mass of 104 kDa. The optimal pH and temperature for its activities are pH 8.0-10.0 and 70-80 degrees C, respectively. The catalytic activities of the enzyme are metal ion dependent, and Mg2+, Zn2+ and Co2+ are the main activators. Among these, Co2+ is the most active stimulator and has unique activation effect at high temperature. Metal binding analysis showed the binding of Mg2+ at the metal binding site was easy to loss in the thermoinactivation, and Co2+ was apt to bind at that site and kept the favorable configuration of catalysis, which would result high activation in the incubation with Co2+ at high temperature. According to this study, a model was proposed for the explanation of the activation and the results of actual experiments demonstrated the validity of the model.
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PMID:Characterization of a thermostable alkaline phosphatase from a novel species Thermus yunnanensis sp. nov. and investigation of its cobalt activation at high temperature. 1595 49

A novel strictly aerobic, heterotrophic, pink-pigmented, non-motile, Gram-negative, oxidase-, catalase-, beta-galactosidase- and alkaline phosphatase-positive marine bacterium, designated strain KMM 6058(T), was isolated from the sea urchin Strongylocentrotus intermedius and studied using a polyphasic taxonomic approach. The G+C content of the DNA of the isolate was 41.3 mol%. The predominant fatty acids were i15:1, i15:0, a15:0 and i17:0 3-OH. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain KMM 6058(T) formed a monophyletic clade with Roseivirga ehrenbergii, with 99% similarity. On the basis of phenotypic, chemotaxonomic, genotypic and phylogenetic characteristics, the novel bacterium should be assigned to the genus Roseivirga as Roseivirga echinicomitans sp. nov. The type strain is KMM 6058(T) (=KCTC 12370(T)=LMG 22587(T)).
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PMID:Roseivirga echinicomitans sp. nov., a novel marine bacterium isolated from the sea urchin Strongylocentrotus intermedius, and emended description of the genus Roseivirga. 1616 68

A sponge-associated strain, KMM 7019T, was investigated in a polyphasic taxonomic study. The bacterium was strictly aerobic, heterotrophic, Gram-negative, yellow-pigmented, motile by gliding and oxidase-, catalase-, beta-galactosidase- and alkaline phosphatase-positive. A phylogenetic analysis based on 16S rRNA gene sequences revealed that strain KMM 7019T is closely related to members of the genus Salegentibacter, namely Salegentibacter holothuriorum, Salegentibacter mishustinae and Salegentibacter salegens (97.7-98 % sequence similarities). The DNA-DNA relatedness between the strain studied and Salegentibacter species ranged from 27 to 31 %, clearly demonstrating that KMM 7019T belongs to a novel species of the genus Salegentibacter, for which the name Salegentibacter agarivorans sp. nov. is proposed. The type strain is KMM 7019T (=KCTC 12560T = LMG 23205T).
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PMID:Salegentibacter agarivorans sp. nov., a novel marine bacterium of the family Flavobacteriaceae isolated from the sponge Artemisina sp. 1658 10

Gram-negative, curved, motile bacteria (strains EqF1T and EqF2) were isolated from faecal samples from two clinically healthy horses. Both strains possessed a single, monopolar, sheathed flagellum and were urease-negative. The novel strains grew at 37 degrees C under microaerobic conditions and were positive for oxidase, catalase and alkaline phosphatase activities. The isolates reduced nitrate to nitrite, but gamma-glutamyl transpeptidase activity was not detected. The novel isolates did not grow at 42 degrees C or on media containing 1 % glycine. They were resistant to cephalotin and nalidixic acid and susceptible to metronidazole. Analysis of the 16S and 23S rRNA gene sequences of the two novel strains identified them as representing a single species within the genus Helicobacter. In terms of 16S rRNA gene sequence similarity, Helicobacter pullorum and Helicobacter canadensis were the most closely related species (98 % similarity). 23S rRNA gene sequence analysis also classified strains EqF1T and EqF2 within the enterohepatic division of the genus Helicobacter, but only 94 % similarity was detected with H. pullorum and H. canadensis, which are helicobacters with unsheathed flagella. The most closely related species in terms of 23S rRNA gene sequence similarity was Helicobacter canis (95 %). Numerical analysis of whole-cell protein extracts by SDS-PAGE was performed and the novel isolates were clearly differentiated from H. pullorum, H. canadensis, H. canis and other species of the genus Helicobacter. This finding was also confirmed by sequence analysis of the hsp60 gene. On the basis of these genetic, biochemical and protein data, the isolates are classified as representing a novel species, for which the name Helicobacter equorum sp. nov. is proposed (type strain EqF1T=LMG 23362T=CCUG 52199T).
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PMID:Helicobacter equorum sp. nov., a urease-negative Helicobacter species isolated from horse faeces. 1726 52

A slowly growing microaerophilic Helicobacter species was isolated from the feces of the common marmoset (Callithrix jacchus). This bacterium possessed a pair of nonsheathed bipolar flagella, was positive for oxidase, catalase and alkaline phosphatase activities, but was negative for gamma-glutamyltranspeptidase and urease activity and for nitrate reduction. The bacterium was susceptible to nalidixic acid and resistant to cephalotine and did not hydrolyze hippurate. On the basis of phenotypic characteristics, 16S rRNA gene sequence analysis and whole-cell protein profiles, the isolate represents a new species of the genus Helicobacter, for which the name Helicobacter callitrichis sp. nov. is proposed; the type strain of the new species is R-204(T) (GenBank accession number AY192526).
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PMID:Helicobacter callitrichis sp. nov., a novel Helicobacter species isolated from the feces of the common marmoset (Callithrix jacchus). 1743 42

A novel, strictly aerobic, heterotrophic, gliding, Gram-negative, oxidase-, catalase-, beta-galactosidase- and alkaline phosphatase-positive marine bacterium, designated strain KMM 6220(T), was isolated from seawater and studied by using a polyphasic taxonomic approach. The DNA G+C content of strain KMM 6220(T) was 59.9 mol%. The predominant fatty acids were iso-C(15 : 1), iso-C(15 : 0), iso-C(15 : 0) 3-OH, iso-C(17 : 0) 3-OH and C(16 : 1)omega7/iso-C(15 : 0) 2-OH. Phylogenetic analysis based on 16S rRNA gene sequencing revealed that strain KMM 6220(T) formed a cluster with the misclassified strains [Flexibacter] aggregans NBRC 15974 and [Flexibacter] tractuosus NBRC 16035 and with the type strains of Reichenbachiella agariperforans and Roseivirga ehrenbergii with levels of similarity of 95.9, 94.4, 92.0 and 91.8 %, respectively. On the basis of its phenotypic, chemotaxonomic, genotypic and phylogenetic characteristics, strain KMM 6220(T) is considered to represent a novel species of a new genus in the phylum Bacteroidetes, for which the name Fulvivirga kasyanovii gen. nov., sp. nov. is proposed. The type strain of the type species is KMM 6220(T) (=CCTCC AB 206119(T)=KCTC 12832(T)).
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PMID:Fulvivirga kasyanovii gen. nov., sp. nov., a novel member of the phylum Bacteroidetes isolated from seawater in a mussel farm. 1747 56

Ten isolates of an unknown Campylobacter species were isolated from cloacal swabs obtained from captive adult whooping cranes (Grus americana). All isolates were identified as Campylobacter based on generic PCR and grouped with other Campylobacter species based on 23S rRNA gene sequence. None of the isolates could be identified by species-specific PCR for known taxa, and all ten isolates formed a robust clade that was very distinct from known Campylobacter species based on 16S rRNA, rpoB and cpn60 gene sequences. The results of 16S rRNA gene nucleotide sequence (<or=92% sequence similarity to recognized Campylobacter species) and genomic DNA (no detectable relatedness) analyses were consistent with novel species status. Cells of the Campylobacter from whooping cranes were uniflagellar and typically sigmoid to allantoid in shape (0.48 microm wide and 2.61 microm long), but also spheroid to coccoid (0.59 microm wide and 0.73 microm long). The bacterium was oxidase-positive, able to reduce nitrite, able to grow at 3 degrees and 42 degrees C, and grew anaerobically, as well as in an atmosphere devoid of H2, and on MacConkey agar. It was not alpha-haemolytic and was negative for hippurate and indoxyl acetate hydrolysis and alkaline phosphatase. It also was susceptible to cephalotin and was unable to grow on nutrient agar, on a medium containing 3.5% NaCl or in ambient O2. The bacterium was unable to grow at 25 degrees C and growth was negative or very restricted at 30 degrees C. Fluorescent amplified fragment length polymorphism analysis indicated that nine of the recovered isolates were genetically distinct. A species-specific primer set targeting the cpn60 gene was developed. The name Campylobacter canadensis sp. nov. is proposed for the novel species, with the type strain L266T (=CCUG 54429T=LMG 24001T).
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PMID:Campylobacter canadensis sp. nov., from captive whooping cranes in Canada. 1797 32

Strain HAL40b(T) was isolated from the marine sponge Haliclona sp. 1 collected at the Sula Ridge off the Norwegian coast and characterized by physiological, biochemical and phylogenetic analyses. The isolate was a small rod with a polar flagellum. It was aerobic, Gram-negative and oxidase- and catalase-positive. Optimal growth was observed at 20-30 degrees C, pH 7-9 and in 3 % NaCl. Substrate utilization tests were positive for arabinose, Tween 40 and Tween 80. Enzyme tests were positive for alkaline phosphatase, esterase lipase (C8), leucine arylamidase, acid phosphatase, naphthol-AS-BI-phosphohydrolase and N-acetyl-beta-glucosaminidase. The predominant cellular fatty acid was C(17 : 1) omega8, followed by C(17 : 0) and C(18 : 1) omega7. Analysis by matrix-assisted laser desorption/ionization time-of-flight MS was used to characterize the strain, producing a characteristic low-molecular-mass protein pattern that could be used as a fingerprint for identification of members of this species. The DNA G+C content was 69.1 mol%. Phylogenetic analysis supported by 16S rRNA gene sequence comparison classified the strain as a member of the class Gammaproteobacteria. Strain HAL40b(T) was only distantly related to other marine bacteria including Neptunomonas naphthovorans and Marinobacter daepoensis (type strain sequence similarity >90 %). Based on its phenotypic, physiological and phylogenetic characteristics, it is proposed that the strain should be placed into a new genus as a representative of a novel species, Spongiibacter marinus gen. nov., sp. nov.; the type strain of Spongiibacter marinus is HAL40b(T) (=DSM 17750(T) =CCUG 54896(T)).
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PMID:Spongiibacter marinus gen. nov., sp. nov., a halophilic marine bacterium isolated from the boreal sponge Haliclona sp. 1. 1831 60

A Gram-negative, motile, rod-shaped bacterium was isolated from black sand collected at Soesoggak, Jeju island, Korea. The strain, designated J83T, was able to grow in the presence of 5 % NaCl, at temperatures of 4-45 degrees C and over the pH range 5.5-9.5. The isolate reduced nitrate to nitrite and was positive for oxidase, catalase, alkaline phosphatase and leucine arylamidase. Strain J83(T) utilized malate, maltose, mannitol and glucose as sole sources of carbon. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain J83T belongs to the class Gammaproteobacteria and is related to species of the genus Shewanella. Strain J83T exhibited 97.8 % 16S rRNA gene sequence similarity to the type strain of Shewanella hafniensis. Based on DNA-DNA hybridization, the level of relatedness between strain J83T and S. hafniensis NBRC 100975T was 39.3 %. On the basis of phenotypic, genetic and phylogenetic data, strain J83T is considered to represent a novel species of the genus Shewanella, for which the name Shewanella basaltis sp. nov. is proposed. The type strain is J83T (=KCTC 22121T =JCM 14937T).
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PMID:Shewanella basaltis sp. nov., a marine bacterium isolated from black sand. 1867 78


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