Blastochloris gulmargensis sp. nov., isolated from an epilithic phototrophic biofilm

2011 ◽  
Vol 61 (8) ◽  
pp. 1811-1816 ◽  
Author(s):  
V. Venkata Ramana ◽  
Shivali Kapoor ◽  
E. Shobha ◽  
E. V. V. Ramprasad ◽  
Ch. Sasikala ◽  
...  

A novel Gram-negative, motile, bacteriochlorophyll b-containing purple non-sulfur bacterium, strain JA248T, was isolated from phototrophic enrichments of a yellow–green epilithic biofilm sample collected from Gulmarg, India. The genomic DNA G+C content of strain JA248T was 63.8 mol%. A phylogenetic tree based on 16S rRNA gene sequence analysis showed that strain JA248T had highest similarity to members of the genus Blastochloris and was closely related to Blastochloris sulfoviridis DSM 729T (98.5 % sequence similarity) and Blastochloris viridis DSM 133T (98.4 %) of the class Alphaproteobacteria. Strain JA248T was characterized based on polyphasic taxonomy, and distinct phenotypic and molecular differences based on DNA–DNA hybridization (relatedness of <46.5 % with the two species of the genus Blastochloris), multilocus sequence analysis, and phenotypic and chemotaxonomic evidence separated strain JA248T from other species of the genus Blastochloris. Strain JA248T therefore represents a novel species in the genus Blastochloris, for which the name Blastochloris gulmargensis sp. nov. is proposed. The type strain is JA248T ( = JCM 14795T  = DSM 19786T).

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Chandandeep Kaur ◽  
Anil Kumar Pinnaka ◽  
Nitin Kumar Singh ◽  
Monu Bala ◽  
Shanmugam Mayilraj

A Gram-positive, yellowish bacterium strain AK-1Twas isolated from soil sample collected from peanut (Arachis hypogaea) crop field and studied by using a polyphasic approach. The organism had morphological and chemotaxonomic properties consistent with its classification in the genusAgromyces. Phylogenetic analysis of the 16S rRNA gene sequence showed that strain AK-1Twas closely related toAgromyces aurantiacus(98.6%) followed byAgromyces soli(98.3%),Agromyces tropicus(97.6%),Agromyces ulmi(97.3%),Agromyces flavus(97.2%), andAgromyces italicus(97.0%), whereas the sequence similarity values with respect to the otherAgromycesspecies with validly published names were between 95.3 and 96.7 %. However, the DNA-DNA hybridization values obtained between strain AK-1Tand other related strains were well below the threshold that is required for the proposal of a novel species. The DNAG+Ccontent of the strain is 71.8 mol%. The above data in combination with the phenotypic distinctiveness of AK-1Tclearly indicate that the strain represents a novel species, for which the nameAgromyces arachidissp. nov. is proposed. The type strain is AK-1T(=MTCC 10524T= JCM 19251T).


2010 ◽  
Vol 60 (1) ◽  
pp. 187-190 ◽  
Author(s):  
Maki Kitahara ◽  
Mitsuo Sakamoto ◽  
Yoshimi Benno

The taxonomic position of strain JCM 2765T isolated from fermented cane molasses in Thailand was reinvestigated. Strain JCM 2765T was originally identified as representing Lactobacillus buchneri on the basis of biochemical and physiological characteristics. In the present study, 16S rRNA gene sequence analysis of strain JCM 2765T demonstrated a low level of similarity with the type strain of L. buchneri (92.5 %) and high levels with those of Lactobacillus collinoides (97.6 %) and Lactobacillus paracollinoides (98.0 %). Ribotyping was applied to investigate the relationships between strain JCM 2765T, L. collinoides and L. paracollinoides. The dendrogram based on ribotyping patterns showed one cluster for six strains of L. paracollinoides, and that strain JCM 2765T and L. collinoides JCM 1123T were each independent. Based on additional phenotypic findings and DNA–DNA hybridization results, strain JCM 2765T is considered to represent a novel species of the genus Lactobacillus, for which the name Lactobacillus similis sp. nov. is proposed. The type strain is JCM 2765T (=LMG 23904T).


2011 ◽  
Vol 61 (4) ◽  
pp. 938-941 ◽  
Author(s):  
Sung-Heun Cho ◽  
Song-Hee Chae ◽  
Wan-Taek Im ◽  
Seung Bum Kim

A Gram-negative, aerobic, non-motile, yellow-pigmented, rod-shaped bacterium (strain JS-08T) isolated from seawater was subjected to a polyphasic taxonomic study. 16S rRNA gene sequence analysis indicated that strain JS-08T belongs to the genus Myroides, a member of the phylum Bacteroidetes. Its closest phylogenetic relative was Myroides odoratimimus JCM 7460T, with which it shared 97.0 % 16S RNA gene sequence similarity. Strain JS-08T contained menaquinone-6 (MK-6) as the predominant menaquinone, and the dominant fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and a summed feature consisting of iso-C15 : 0 2-OH and/or C16 : 1ω7c. The DNA G+C content of strain JS-08T was 34.2 mol%. Based on phenotypic, genotypic and phylogenetic evidence, it is suggested that strain JS-08T represents a novel species of the genus Myroides, for which the name Myroides marinus sp. nov. is proposed. The type strain is JS-08T ( = KCTC 23023T  = JCM 16529T).


2006 ◽  
Vol 56 (7) ◽  
pp. 1615-1619 ◽  
Author(s):  
Myung Kyum Kim ◽  
Wan-Taek Im ◽  
Jun-Gyo In ◽  
Sung-Hoon Kim ◽  
Deok-Chun Yang

A Gram-negative, non-spore-forming, rod-shaped, motile bacterium, strain Ko06T, was isolated from soil from a ginseng field in South Korea and was characterized in order to determine its taxonomic position. 16S rRNA gene sequence analysis revealed that strain Ko06T belongs to the Gammaproteobacteria, and the highest levels of sequence similarity were with Thermomonas brevis LMG 21746T (98.4 %), Thermomonas fusca LMG 21737T (97.7 %), Thermomonas haemolytica A50-7-3T (96.5 %) and Thermomonas hydrothermalis SGM-6T (95.8 %). Chemotaxonomic data revealed that strain Ko06T possesses ubiquinone Q-8 and that the predominant fatty acids are C15 : 0 iso, C11 : 0 iso and C11 : 0 iso 3-OH, all of which corroborated assignment of the strain to the genus Thermomonas. The results of DNA–DNA hybridization and physiological and biochemical tests clearly demonstrated that strain Ko06T represents a distinct species. On the basis of these data, strain Ko06T (=KCTC 12540T=NBRC 101155T) should be classified as the type strain of a novel Thermomonas species, for which the name Thermomonas koreensis sp. nov. is proposed.


2006 ◽  
Vol 56 (12) ◽  
pp. 2899-2901 ◽  
Author(s):  
Byung-Yong Kim ◽  
Hang-Yeon Weon ◽  
Seung-Hee Yoo ◽  
Seon-Young Lee ◽  
Soon-Wo Kwon ◽  
...  

A Gram-negative, rod-shaped, non-spore-forming bacterium, strain GH9-3T, isolated from greenhouse soil, was investigated in a polyphasic study. The novel organism grew at 10–35 °C, 0–3 % NaCl and pH 5–9. It had ubiquinone 8 (Q-8) as the predominant isoprenoid quinone and possessed C16 : 0, summed feature 3, C17 : 0 cyclo and C18 : 1 ω7c as the major fatty acids (together representing 87.4 % of the total). The DNA G+C content was 67.1 mol%. 16S rRNA gene sequence analysis of strain GH9-3T showed that it grouped within the Variovorax cluster, with highest sequence similarities to Variovorax paradoxus IAM 12373T (98.3 %) and Variovorax dokdonensis DS-43T (98.0 %). DNA–DNA hybridization values between strain GH9-3T and V. paradoxus DSM 30034T and V. dokdonensis DS-43T were 38 and 29 %, respectively. Based on phenotypic, chemotaxonomic and phylogenetic features, it is proposed that strain GH9-3T represents a novel species of the genus Variovorax with the name Variovorax soli sp. nov. The type strain is GH9-3T (=KACC 11579T=DSM 18216T).


2007 ◽  
Vol 57 (11) ◽  
pp. 2618-2622 ◽  
Author(s):  
Elke Lang ◽  
Jolantha Swiderski ◽  
Erko Stackebrandt ◽  
P. Schumann ◽  
Cathrin Spröer ◽  
...  

A Gram-negative, rod-shaped, non-spore-forming bacterium (strain NS11T) was isolated from a lichen-colonized rock surface. On the basis of 16S rRNA gene sequence similarity, strain NS11T was shown to belong to the Betaproteobacteria, and was most closely related to Herminiimonas arsenicoxydans ULPAs1T (98.8 %), Herminiimonas aquatilis CCUG 36956T (98.0 %) and Herminiimonas fonticola S-94T (98.0 %). Major whole-cell fatty acids were C16 : 0, C17 : 0 cyclo and C16 : 1 ω7c. Strain NS11T also contained high proportions of C10 : 0 3-OH and C18 : 1 ω7c. This pattern is typical for members of the genus Herminiimonas. The results of DNA–DNA hybridization experiments and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain NS11T from the three recognized Herminiimonas species. It is therefore concluded that strain NS11T represents a novel species of the genus Herminiimonas, for which the name Herminiimonas saxobsidens sp. nov. is proposed. The type strain is NS11T (=DSM 18748T=CCM 7436T).


2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 860-863 ◽  
Author(s):  
Chun Tao Gu ◽  
Fang Wang ◽  
Chun Yan Li ◽  
Fei Liu ◽  
Gui Cheng Huo

A Gram-positive bacterial strain, 3.1.1T, was isolated from traditional pickle in Heilongjiang Province, China. The bacterium was characterized by a polyphasic approach, including 16S rRNA gene sequence analysis, pheS gene sequence analysis, rpoA gene sequence analysis, dnaK gene sequence analysis, fatty acid methyl ester analysis, determination of DNA G+C content, DNA–DNA hybridization and an analysis of phenotypic features. Based upon the data obtained in the present study, a novel species, Lactobacillus xiangfangensis sp. nov., is proposed with the type strain 3.1.1T ( = LMG 26013T  = NCIMB 14687T).


2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 3115-3118 ◽  
Author(s):  
Soo-Jin Kim ◽  
Jae-Hyung Ahn ◽  
Hang-Yeon Weon ◽  
Seung-Beom Hong ◽  
Soon-Ja Seok ◽  
...  

An aerobic, Gram-stain-negative, non-flagellated, long rod or rod-shaped bacterial strain, 5GH22-11T, was isolated from a soil sample of a greenhouse in Gongju, Republic of Korea. According to 16S rRNA gene sequence analysis, strain 5GH22-11T showed the highest sequence similarities with Niastella populi THYL-44T (97.1 %), Niastella koreensis GR20-10T (95.7 %) and Niastella yeongjuensis GR20-13T (95.6 %), and < 93 % sequence similarity with all other species with validly published names. The phylogenetic tree also showed strain 5GH22-11T formed a compact cluster with members of the genus Niastella. DNA–DNA hybridization revealed strain 5GH22-11T is a novel species, showing far less than 70 % DNA–DNA relatedness with Niastella populi THYL-44T. Strain 5GH22-11T contained iso-C15 : 0 (34.3 %), iso-C17 : 0 3-OH (24.8 %) and iso-C15 : 1 G (18.2 %) as the major fatty acids; phosphatidylethanolamine, six unknown aminolipids, two unknown lipids and one unknown phospholipid as the polar lipids; and MK-7 as the predominant isoprenoid quinone. The DNA G+C content was 41.4 mol%. Based on these phylogenetic, physiological and chemotaxonomic data, it was demonstrated that strain 5GH22-11T represents a novel species of the genus Niastella, for which the name Niastella gongjuensis sp. nov. is proposed. The type strain is 5GH22-11T ( = KACC 17399T = JCM 19941T).


2004 ◽  
Vol 54 (3) ◽  
pp. 713-719 ◽  
Author(s):  
Gundlapalli S. N. Reddy ◽  
Genki I. Matsumoto ◽  
Peter Schumann ◽  
Erko Stackebrandt ◽  
Sisinthy Shivaji

Thirty-one bacteria that belonged to the genus Pseudomonas were isolated from cyanobacterial mat samples that were collected from various water bodies in Antarctica. All 31 isolates were psychrophilic; they could be divided into three groups, based on their protein profiles. Representative strains of each of the three groups, namely CMS 35T, CMS 38T and CMS 64T, were studied in detail. Based on 16S rRNA gene sequence analysis, it was established that the strains were related closely to the Pseudomonas fluorescens group. Phenotypic and chemotaxonomic characteristics further confirmed their affiliation to this group. The three strains could also be differentiated from each other and the closely related species Pseudomonas orientalis, Pseudomonas brenneri and Pseudomonas migulae, based on phenotypic and chemotaxonomic characteristics and the level of DNA–DNA hybridization. Therefore, it is proposed that strains CMS 35T (=MTCC 4992T=DSM 15318T), CMS 38T (=MTCC 4993T=DSM 15319T) and CMS 64T (=MTCC 4994T=DSM 15321T) should be assigned to novel species of the genus Pseudomonas as Pseudomonas antarctica sp. nov., Pseudomonas meridiana sp. nov. and Pseudomonas proteolytica sp. nov., respectively.


2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 2951-2956 ◽  
Author(s):  
Sei Joon Oh ◽  
Na-Ri Shin ◽  
Dong-Wook Hyun ◽  
Pil Soo Kim ◽  
Joon Yong Kim ◽  
...  

A novel, Gram-stain-positive, non-motile, facultatively anaerobic, rod- or coccoid-shaped bacterium, designated strain ORY33T, was isolated from the gut of a camel cricket (Diestrammena coreana). The 16S rRNA gene sequence analysis showed that strain ORY33T belonged to the genus Weissella , with highest sequence similarity to Weissella koreensis S-5623T (97.7 %). The strain grew optimally at 30 °C and pH 7 in the presence of 0 % (w/v) NaCl. Catalase and oxidase activities were negative. The genomic DNA G+C content of strain ORY33T was 45.1 mol%. DNA–DNA hybridization values between strain ORY33T and closely related members of the genus Weissella were less than 27 %. The major fatty acids of strain ORY33T were C18 : 1ω9c, C16 : 0 and C14 : 0. Based on these phenotypic, phylogenetic and genotypic analyses, strain ORY33T represents a novel species belonging to the genus Weissella , for which the name Weissella diestrammenae sp. nov. is proposed. The type strain is ORY33T ( = KACC 16890T = JCM 18559T).


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