scholarly journals Actinoalloteichus spitiensis sp. nov., a novel actinobacterium isolated from a cold desert of the Indian Himalayas

2005 ◽  
Vol 55 (6) ◽  
pp. 2561-2564 ◽  
Author(s):  
A. K. Singla ◽  
S. Mayilraj ◽  
Takuji Kudo ◽  
S. Krishnamurthi ◽  
G. S. Prasad ◽  
...  

An actinobacterial strain, RMV-1378T, isolated from a cold desert of the Indian Himalayas, was subjected to polyphasic taxonomic characterization. The strain formed branching, non-fragmenting vegetative hyphae and did not produce diffusible pigments. Neither aerial mycelium nor spore formation was observed. The G+C content of the DNA was 72·0 mol%. The strain had chemotaxonomic characteristics typical of the genus Actinoalloteichus and was closely related (99·3 % 16S rRNA gene sequence similarity) to Actinoalloteichus cyanogriseus, currently the only Actinoalloteichus species with a validly published name. However, the results of DNA–DNA hybridization experiments showed 51·9 % relatedness with the type strain of A. cyanogriseus. On the basis of the above data and the physiological and biochemical distinctiveness of RMV-1378T (=MTCC 6194T=JCM 12472T=DSM 44848T), this strain should be classified as the type strain of a novel species of Actinoalloteichus, for which the name Actinoalloteichus spitiensis sp. nov. is proposed.

2006 ◽  
Vol 56 (8) ◽  
pp. 1971-1975 ◽  
Author(s):  
S. Mayilraj ◽  
R. M. Kroppenstedt ◽  
K. Suresh ◽  
H. S. Saini

A reddish orange bacterium, strain K07-05T, was isolated from soil during a study of the bacterial diversity of a cold desert of the Indian Himalayas and was studied by using a polyphasic approach. The organism had morphological and chemotaxonomic properties consistent with its classification in the genus Kocuria. Phylogenetic analysis of the 16S rRNA gene sequence showed that strain K07-05T was closely related to Kocuria rosea DSM 20447T and Kocuria polaris MTCC 3702T (98.1 and 97.8 % sequence similarity, respectively), whereas the sequence similarity values with respect to the other Kocuria species with validly published names were between 96.4 and 94.2 %. However, the genomic relatedness, as shown by DNA–DNA hybridization, of strain K07-05T and K. polaris MTCC 3702T is 49.5 % and that with K. rosea MTCC 2522T is 24.0 %. The DNA G+C content of the strain is 75.3 mol%. The above data in combination with the phenotypic distinctiveness of K07-05T clearly indicate that the strain represents a novel species, for which the name Kocuria himachalensis sp. nov. is proposed. The type strain is K07-05T (=MTCC 7020T=DSM 44905T=JCM 13326T).


2006 ◽  
Vol 56 (7) ◽  
pp. 1667-1671 ◽  
Author(s):  
S. Mayilraj ◽  
K. Suresh ◽  
R. M. Kroppenstedt ◽  
H. S. Saini

A coral-red-pigmented actinobacterium, strain K30-10T, was isolated from a soil sample from a cold desert of the Indian Himalayas. Chemical and phenotypic properties of strain K30-10T were consistent with its classification in the genus Dietzia. It showed 97.9 % 16S rRNA gene sequence similarity to Dietzia maris MTCC 7011T; similarities to the type strains of three other species of the genus, Dietzia natronolimnaea, Dietzia psychralcaliphila and Dietzia cinnamea, were 94.4–96.0 %. The DNA–DNA relatedness between K30-10T and the closely related strain D. maris MTCC 7011T was 59.2 %. The DNA G+C content of strain K30-10T was 67.0 mol%. Based on physiological and biochemical tests and genotypic differences between strain K30-10T and its closest phylogenetic relatives, it is proposed that this strain represents a novel species, Dietzia kunjamensis sp. nov.; the type strain is K30-10T (=MTCC 7007T=DSM 44907T=JCM 13325T).


2011 ◽  
Vol 61 (5) ◽  
pp. 1033-1038 ◽  
Author(s):  
Ismet Ara ◽  
Baljinova Tsetseg ◽  
Damdinsuren Daram ◽  
Manabu Suto ◽  
Katsuhiko Ando

A Gram-positive, aerobic, non-motile actinomycete, strain MN08-A0203T, that formed pale yellow to orange-brown colonies and non-fragmented branched substrate mycelium is described. The strain, which produced very scanty aerial mycelium-like structures and scanty formation of spherical bodies on the aerial mycelium on Bennett’s agar medium, was studied in detail to determine its taxonomic position. On the basis of 16S rRNA gene sequence similarity studies, strain MN08-A0203T grouped with the genus Actinophytocola, being most closely related to the type strain of Actinophytocola oryzae (97.8 %). Chemotaxonomic data [menaquinone MK-9(H4); iso-C16 : 0 (27 %), iso-C15 : 0 (18 %), C16 : 1 H (8 %), C16 : 0 9-methyl (8 %) as major fatty acids; glucose, galactose, ribose, arabinose, mannose, rhamnose and xylose (trace) as whole cell sugars; diphosphatidylglycerol, phosphatidylethanolamine, hydroxyphosphatidylethanolamine and ninhydrin-positive phosphoglycolipids as polar phospholipids] supported allocation of the strain to the genus Actinophytocola. Furthermore, the results of DNA–DNA hybridization of strain MN08-A0203T with the type strain of Actinophytocola oryzae revealed that the two strains were genetically distinct from each other. Moreover, physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain MN08-A0203T from closely related species. Thus, MN08-A0203T represents a novel species of the genus Actinophytocola, for which the name Actinophytocola burenkhanensis sp. nov. is proposed, with MN08-A0203T ( = NBRC 105883T  = VTCC D9-23T) as the type strain.


2007 ◽  
Vol 57 (8) ◽  
pp. 1762-1764 ◽  
Author(s):  
T. N. R. Srinivas ◽  
P. Anil Kumar ◽  
Ch. Sasikala ◽  
Ch. V. Ramana ◽  
J. F. Imhoff

A Gram-negative, rod-shaped, phototrophic bacterium (JA181T) was isolated from a tidal water sample. On the basis of 16S rRNA gene sequence similarity, strain JA181T was shown to belong to the class Alphaproteobacteria, most closely related to Rhodovulum sulfidophilum (97.8 % similarity to the type strain), Rhodovulum adriaticum (93 %), Rhodovulum robiginosum (93 %), Rhodovulum iodosum (94 %), Rhodovulum imhoffii (94 %), Rhodovulum strictum (95 %), Rhodovulum euryhalinum (94.6 %) and Rhodovulum marinum (94.6 %). DNA–DNA hybridization with Rdv. sulfidophilum DSM 1374T (relatedness of 39 % with strain JA181T) and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain JA181T from the eight Rhodovulum species with validly published names. Strain JA181T therefore represents a novel species, for which the name Rhodovulum visakhapatnamense sp. nov. is proposed (type strain JA181T =JCM 13531T =ATCC BAA-1274T =DSM 17937T).


2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 3086-3090 ◽  
Author(s):  
Ying Wang ◽  
Huiqin Huang ◽  
Weidao Yuan ◽  
Hua Wei ◽  
Yuqing Chen ◽  
...  

A novel aerobic actinomycete, designated HA11110T, was isolated from a mangrove soil sample collected in Haikou, China. It formed white aerial mycelium and pale yellow substrate mycelium on Gause's synthetic agar no. 1. Scanning electron microscopy revealed that cells of HA11110T produced straight to spiral spore chains with spiny spores. Chemotaxonomic tests showed that the cell wall contained ll-diaminopimelic acid and the major fatty acids were iso-C16 : 0, anteiso-C15 : 0 and iso-C14 : 0.16S rRNA gene sequence similarity showed that strain HA11110T belonged to the genus Streptomyces, most closely related to Streptomyces fenghuangensis GIMN4.003T (99.1 %), Streptomyces nanhaiensis SCSIO 01248T (98.8 %) and Streptomyces radiopugnans R97T (98.8 %). However, DNA–DNA hybridization studies of strain HA11110T with these three closest relatives showed relatedness values of 58.4, 49.7 and 47.2 %, respectively. On the basis of phenotypic and genotypic data, strain HA11110T represents a novel species of the genus Streptomyces, for which the name Streptomyces mangrovi sp. nov. is proposed. The type strain is HA11110T ( = CGMCC 4.7117T = DSM 42113T).


2011 ◽  
Vol 61 (12) ◽  
pp. 2811-2815 ◽  
Author(s):  
Honghui Zhu ◽  
Shumei Jiang ◽  
Qing Yao ◽  
Yonghong Wang ◽  
Meibiao Chen ◽  
...  

An actinomycete, designated strain GIMN4.003T, was isolated from seawater collected in Sanya, China. It produced white aerial mycelium and yellow substrate mycelium on Gause’s synthetic agar medium no. 1. The substrate mycelium colour was not sensitive to pH. Scanning electron microscopy observations revealed that GIMN4.003T produced straight to flexuous spore chains of rough to warty spores. ll-Diaminopimelic acid was present in the cell-wall hydrolysate. Based on chemotaxonomy and morphological features, strain GIMN4.003T was identified as a member of the genus Streptomyces. Melanin was not produced. No antimicrobial activity was detected against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Penicillium citrinum or Candida albicans. Analysis of the 16S rRNA gene sequence revealed that the highest sequence similarity was to Streptomyces radiopugnans R97T (99.0 %). However, DNA relatedness between GIMN4.003T and S. radiopugnans DSM 41901T was low (41.24±1.47 %). Furthermore, the morphological, physiological and biochemical characteristics of strain GIMN4.003T were different from those of S. radiopugnans DSM 41901T and the type strains of other closely related Streptomyces species. On the basis of its physiological and molecular properties, it is evident that strain GIMN4.003T ( = CCTCCM 208215T  = NRRL B-24801T) represents the type strain of a novel species within the genus Streptomyces, for which the name Streptomyces fenghuangensis sp. nov. is proposed.


2010 ◽  
Vol 60 (3) ◽  
pp. 653-658 ◽  
Author(s):  
Mi-Ja Jung ◽  
Min-Soo Kim ◽  
Seong Woon Roh ◽  
Kee-Sun Shin ◽  
Jin-Woo Bae

A novel, moderately halophilic bacterium belonging to the genus Salinicoccus was isolated from crabs preserved in soy sauce: a traditional Korean fermented seafood. Colonies of strain CrmT were ivory and the cells were non-motile, Gram-positive cocci. The organism was non-sporulating, catalase-positive and oxidase-negative. The major fatty acids of strain CrmT were iso-C15 : 0 (22.0 %), anteiso-C15 : 0 (40.6 %) and anteiso-C17 : 0 (12.1 %). The cell wall peptidoglycan contained lysine and glycine, and the major isoprenoid quinone was MK-6. The polar lipids were phosphatidylglycerol, diphosphatidylglycerol and an unidentified glycolipid. The genomic DNA G+C content was 47.8 mol%. Strain CrmT was closely related to the type strain of Salinicoccus halodurans, with which it shared 96.9 % 16S rRNA gene sequence similarity. The DNA–DNA hybridization value between strains CrmT and S. halodurans DSM 19336T was 7.6 %. Based on phenotypic, genetic and phylogenetic data, strain CrmT should be classified as a novel species within the genus Salinicoccus, for which the name Salinicoccus carnicancri sp. nov. is proposed. The type strain is CrmT (=KCTC 13301T =JCM 15796T).


2007 ◽  
Vol 57 (10) ◽  
pp. 2376-2380 ◽  
Author(s):  
Mubina M. Merchant ◽  
Allana K. Welsh ◽  
Robert J. C. McLean

A Gram-negative, rod-shaped, motile, non-spore-forming bacterium, designated strain A62-14BT, was isolated from a constant-temperature, spring-fed, freshwater lake. On the basis of the complete 16S rRNA gene sequence, strain A62-14BT was shown to belong to the class Gammaproteobacteria, being most closely related to Rheinheimera sp. HTB082 (96.2 % sequence similarity), Rheinheimera baltica (95.01 %), Rheinheimera pacifica (96.35 %), Rheinheimera perlucida and Alishewanella fetalis (95.9 %). The major fatty acids (C16 : 1 ω7c, 38.56 %; C16 : 0, 19.04 %; C12 : 0 3-OH, 12.83 %; C18 : 1 ω7c, 7.70 %) and the motility of strain A62-14BT support its affiliation to the genus Rheinheimera. The salt intolerance of strain A62-14BT, together with the results of other physiological and biochemical tests, allowed the differentiation of this strain from the three species of the genus Rheinheimera with validly published names. Therefore strain A62-14BT represents a novel species of the genus Rheinheimera, for which the name Rheinheimera texasensis sp. nov. is proposed. The type strain is A62-14BT (=ATCC BAA-1235T=DSM 17496T). The description of the genus Rheinheimera is emended to reflect the halointolerance and freshwater origin of strain A62-14BT.


2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 93-97 ◽  
Author(s):  
Olga I. Nedashkovskaya ◽  
Sung-Heun Cho ◽  
Yochan Joung ◽  
Kiseong Joh ◽  
Mi Na Kim ◽  
...  

An aerobic, halotolerant, Gram-negative bacterium was isolated from the sea urchin Strongylocentrotus intermedius and subjected to taxonomic characterization. The strain, designated KMM 6042T, was rod-shaped, motile and yellow-pigmented. Phylogenetic analysis indicated that the strain was most closely related to the type strain of Altererythrobacter dongtanensis , and the level of 16S rRNA gene sequence similarity between the two was 99.0 %. However, the DNA–DNA relatedness between the two strains was 34.4±7.6 %. Physiological and chemotaxonomic properties clearly distinguished the novel strain from other species of the genus Altererythrobacter . It is thus evident from the phylogenetic and phenotypic analyses that strain KMM 6042T merits recognition as a novel species of the genus Altererythrobacter , for which the name Altererythrobacter troitsensis sp. nov. (type strain, KMM 6042T = KCTC 12303T = JCM 17037T) is proposed.


2011 ◽  
Vol 61 (6) ◽  
pp. 1360-1369 ◽  
Author(s):  
Arvind Kumar Gupta ◽  
Mahesh Shantappa Dharne ◽  
Ashraf Yusuf Rangrez ◽  
Pankaj Verma ◽  
Hemant V. Ghate ◽  
...  

Two Gram-negative-staining, aerobic, non-motile, rod-shaped bacteria, designated strains FFA1T and FFA3T, and belonging to the class Gammaproteobacteria were isolated from the gastrointestinal tract of adult flesh flies (Diptera: Sarcophagidae). Phylogenetic analysis of 16S rRNA gene sequence data placed these two strains within the genus Ignatzschineria with similarities of 98.6 % (FFA1T) and 99.35 % (FFA3T) to Ignatzschineria larvae L1/68T. The level of gene sequence similarity between strains FFA1T and FFA3T was 99 %, 97.15 % and 78.1 % based on the 16S rRNA, 23S rRNA and gyrB gene sequences, respectively. Strains FFA1T and FFA3T shared 24 % DNA–DNA relatedness. DNA–DNA hybridization revealed a very low level of relatedness between the novel strains (22 % for strain FFA1T and 44 % for strain FFA3T) and I. larvae L1/68T genomic DNA. The respiratory quinone was Q-8 in both novel strains. The DNA G+C contents were 41.1 mol% and 40.1 mol% for strains FFA1T and FFA3T, respectively. The cell membrane of both strains consisted of phosphatidylglycerol, phosphatidylethanolamine, phospholipids and aminophospholipid. The major fatty acids for both strains were C16 : 0, summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c), CyC19 : 0ω8c and C14 : 0. The results of DNA–DNA hybridization between the two new strains and I. larvae L1/68T, in combination with phylogenetic, chemotaxonomic, biochemical and electron microscopic data, demonstrated that strains FFA1T and FFA3T represented two novel species of the genus Ignatzschineria for which the names Ignatzschineria indica sp. nov. (type strain FFA1T = DSM 22309T = KCTC 22643T = NCIM 5325T) and Ignatzschineria ureiclastica sp. nov. (type strain FFA3T = DSM 22310T = KCTC 22644T = NCIM 5326T) are proposed.


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