scholarly journals Saccharopolyspora halotolerans sp. nov., a halophilic actinomycete isolated from a hypersaline lake

2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3532-3537 ◽  
Author(s):  
Ling-Ling Lv ◽  
Yue-Feng Zhang ◽  
Zhan-Feng Xia ◽  
Jing-Jing Zhang ◽  
Li-Li Zhang

A novel actinomycete strain, designated TRM 45123T, was isolated from a hypersaline habitat in Xinjiang Province (40° 20′ N 90° 49′ E), north-west China. The isolate was characterized using a polyphasic approach. 16S rRNA gene sequence analysis indicated that strain TRM 45123T belonged to the genus Saccharopolyspora and was closely related to Saccharopolyspora gloriosae (96.7 % similarity). The G+C content of the DNA was 69.07 mol%. The isolate contained meso-diaminopimelic acid as the diagnostic diamino acid, and arabinose and ribose as the major whole-cell sugars. The diagnostic phospholipids were phosphatidylethanolamine, phosphatidylcholine and phosphatidylglycerol. The predominant menaquinone was MK-9(H4). The major fatty acids were iso-C16 : 0, anteiso-C17 : 0, iso-C15 : 0 and anteiso-C15 : 0. On the basis of the evidence from this polyphasic study, a novel species, Saccharopolyspora halotolerans sp. nov., is proposed. The type strain of Saccharopolyspora halotolerans is TRM 45123T ( = CCTCC AA 2013006T = DSM 45990T).

2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1945-1951 ◽  
Author(s):  
Yong-Guang Zhang ◽  
Qing Liu ◽  
Hong-Fei Wang ◽  
Dao-Feng Zhang ◽  
Yuan-Ming Zhang ◽  
...  

A facultatively alkaliphilic actinomycete strain, designated EGI 80088T, was isolated from a saline-alkali soil sample from Xinjiang province, north-west China, and subjected to a polyphasic taxonomic characterization. Strain EGI 80088T formed fragmented aerial hyphae and short spore chains, and rod-like spores aggregated at maturity. Whole-cell hydrolysates of the isolate contained ll-diaminopimelic acid as the diagnostic diamino acid, and glucosamine, mannose, galactose, glucose and rhamnose as the marker sugars. The major fatty acids identified (>5 %) were anteiso-C15 : 0, iso-C15 : 0, summed feature 4 (iso-C17 : 1I/anteiso-C17 : 1B), iso-C16 : 0 and anteiso-C17 : 0. The predominant menaquinone was MK-9(H4). The G+C content of the genomic DNA of strain EGI 80088T was 70.6 mol%. EGI 80088T showed the highest 16S rRNA gene sequence similarity to its closest phylogenetic neighbour Haloactinopolyspora alba YIM 93246T (98.5 %). The DNA–DNA relatedness value of the strain EGI 80088T and H. alba YIM 93246T was 59.3±5.2 %. On the basis of morphological, chemotaxonomic and phylogenetic characteristics and DNA–DNA hybridization data, strain EGI 80088T represents a novel species of the genus Haloactinopolyspora , for which the name Haloactinopolyspora alkaliphila sp. nov. (type strain EGI 80088T = BCRC 16946T = JCM 19128T) is proposed. The description of the genus Haloactinopolyspora has also been emended.


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3787-3792 ◽  
Author(s):  
Atika Meklat ◽  
Noureddine Bouras ◽  
Abdelghani Zitouni ◽  
Florence Mathieu ◽  
Ahmed Lebrihi ◽  
...  

A halophilic actinomycete strain, designated H55T, was isolated from Saharan soil sampled in the Mzab region (Ghardaïa, southern Algeria) and was characterized in a taxonomic study using a polyphasic approach. The cell wall was determined to contain meso-diaminopimelic acid and the characteristic whole-cell sugars were arabinose and galactose. The predominant menaquinones were found to be MK-10(H4) and MK-9(H4). The predominant cellular fatty acids were determined to be anteiso-C17 : 0, iso-C16 : 0 and iso-C15 : 0. The diagnostic phospholipid detected was phosphatidylcholine. The morphological and chemotaxonomic characteristics of the strain were consistent with those of members of the genus Actinopolyspora , and 16S rRNA gene sequence analysis confirmed that strain H55T was a member of this genus. DNA–DNA hybridization values between strain H55T and the type strains of the nearest species of the genus Actinopolyspora , Actinopolyspora erythraea and A. alba , were clearly below the 70 % threshold. The genotypic and phenotypic data showed that the organism represents a novel species of the genus Actinopolyspora , for which the name Actinopolyspora mzabensis sp. nov. is proposed, with the type strain H55T ( = DSM 45460T = CCUG 62965T).


2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1421-1425 ◽  
Author(s):  
Syed G. Dastager ◽  
Rahul Mawlankar ◽  
Poonam Mual ◽  
Ashish Verma ◽  
Srinivasan Krishnamurthi ◽  
...  

A Gram-stain-positive, rod-shaped, endospore-forming, aerobic bacterium designated SGD-V-25T was isolated from Veraval sediment sample, India. Strain SGD-V-25T was capable of growing at 25–50 °C (optimum 37 °C), pH 6–12 (optimum pH 7.0) and with 0–5 % (w/v) NaCl. The taxonomic position of this strain was deduced using a polyphasic approach and the 16S rRNA gene sequence analysis showed that the isolate belongs to the phylum Firmicutes , forming the cluster with Bacillus badius MTCC 1548T, with which it shares highest similarity of 99.1 % with 13 nt differences. Other type strains of the genus Bacillus showed less than 96 % similarity. The cell wall contained meso-diaminopimelic acid as the diagnostic diamino acid. The polar lipid profile of strain SGD-V-25T showed the presence of diphosphatidylglycerol, phosphatidylglycerol, phsophoglycolipid and two aminophospholipids. The predominant isoprenoid quinone was MK-7. The major cellular fatty acids were iso-C15 : 0, anteiso-C15 : 0, anteiso-C17 : 0, iso-C16 : 0, C16 : 1ω11c and C16 : 0. The genomic DNA G+C content of strain SGD-V-25T was 37.6 mol%. On the basis of phenotypic characteristics, phylogenetic analysis and DNA–DNA hybridization, strain SGD-V-25T could be clearly distinguished from closely related members of the genus Bacillus , and the name Bacillus encimensis sp. nov., is proposed to accommodate this strain. The type strain is SGD-V-25T ( = NCIM 5513T = DSM 28241T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2484-2489 ◽  
Author(s):  
Peter Kämpfer ◽  
Stefanie P. Glaeser ◽  
Iris Grün-Wollny ◽  
Hans-Jürgen Busse

A Gram-positive, non-spore-forming bacterium (GW-12028T) of unknown origin showing filamentous growth and producing spherical sporangia was studied for its taxonomic allocation. The 16S rRNA gene sequence analysis and subsequent similarity studies showed that strain GW-12028T belongs to the genus Streptosporangium , and is most closely related to Streptosporangium pseudovulgare DSM 43181T (99.9 %) and Streptosporangium nondiastaticum DSM 43848T (99.6 %) and more distantly related to Streptosporangium fragile IFO 14311T (98.4 %) and other species of the genus Streptosporangium (95.8 to 98 %). Chemotaxonomic analyses showed that the peptidoglycan diamino acid was meso-diaminopimelic acid. Whole-cell hydrolysates contained madurose as the diagnostic sugar and exhibited a quinone system that contained predominantly menaquinones with nine isoprenoic units in the side chain [MK-9, MK-9(H2), MK-9(H4)]. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, phoshatidylethanolamine, hydroxyphosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol-mannosides, four unidentified glycolipids, a phospholipid and an aminolipid. The polyamine pattern contained the major compounds spermine and spermidine. The major fatty acids were 10-methyl C17 : 0, iso-C16 : 0 and C15 : 0. These chemotaxonomic traits are common to other species of the genus Streptosporangium . DNA–DNA hybridizations and physiological and biochemical tests in comparison with the type strains of the most closely related species, S. nondiastaticum and S. pseudovulgare , allowed genotypic and phenotypic differentiation of strain GW-12028T. This strain represents a novel species, for which we propose the name Streptosporangium sandarakinum sp. nov., with the type strain GW-12028T ( = LMG 27062T  = DSM 45763T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2649-2654 ◽  
Author(s):  
Wipaporn Ngaemthao ◽  
Chanwit Suriyachadkun ◽  
Suwanee Chunhametha ◽  
Tomohiko Tamura ◽  
Jean-Jacques Sanglier

A novel actinomycete strain, A-T 4600T, which developed cylindrical sporangia containing a longitudinal pair of motile spores forming singly or in bundles on short ramifications of the aerial mycelium, was isolated from soil collected from an evergreen forest in Thailand. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars contained ribose, madurose, mannose and glucose. The predominant menaquinones were MK-9(H2). Mycolic acids were not detected. The diagnostic phospholipids were phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylinositol, phosphatidylglycerol, phosphatidylinositol mannoside, diphosphatidylglycerol and aminophosphoglycolipid. The predominant cellular fatty acids were unsaturated C17 : 1, C18 : 1, saturated C16 : 0, and C17 : 0. The G+C content of the DNA was 70.8 mol%. Phenotypic and chemotaxonomic analyses showed that the isolate had the typical characteristics of members of the genus Planobispora . Furthermore, 16S rRNA gene sequence analysis also indicated that this strain belonged to the genus Planobispora but as a putative novel species. DNA–DNA relatedness values that differentiate the isolate from previously described members of the genus Planobispora were significantly below 70 %. Following an evaluation of phenotypic, chemotaxonomic and genotypic studies, it is proposed that the isolate represents a novel species, Planobispora siamensis sp. nov.; the type strain is A-T 4600T ( = BCC 39469T = NBRC 107568T).


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3782-3786 ◽  
Author(s):  
Aysel Veyisoglu ◽  
Anil Sazak ◽  
Demet Cetin ◽  
Kiymet Guven ◽  
Nevzat Sahin

A novel actinomycete, strain DS3030T, was isolated from a deep sediment sample, collected from the southern Black Sea coast, Turkey, and was examined using a polyphasic approach. On the basis of 16S rRNA gene sequence analysis, strain DS3030T was shown to belong to the genus Saccharomonospora and to be related most closely to Saccharomonospora marina XMU15T (99.6 % similarity). Sequence similarities with other strains of the genus Saccharomonospora were lower than 97.0 %. The organism had chemical and morphological features typical of the genus Saccharomonospora . The cell wall of the novel strain contained meso-diaminopimelic acid, arabinose and galactose as diagnostic sugars. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositol mannoside. The predominant menaquinone was MK-9(H4). Major fatty acids were iso-C16 : 0, iso-C16 : 0 2-OH and C16 : 1 cis 9. Phenotypic data clearly distinguished the new isolate from its closest relative, S. marina XMU15T. The combined genotypic and phenotypic data and low DNA–DNA relatedness with its closest related strain reveal that strain DS3030T represents a novel species of the genus, for which the name Saccharomonospora amisosensis sp. nov. is proposed. The type strain is DS3030T ( = DSM 45685T = KCTC 29069T = NRRL B-24885T).


2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3204-3208 ◽  
Author(s):  
Zhan-Feng Xia ◽  
Ji-Sheng Ruan ◽  
Ying Huang ◽  
Li-Li Zhang

A novel actinomycete strain, designated TRM 46012T, was isolated from sediment of Aiding Lake in Tulufan Basin (42° 64′ N 89° 26′ E), north-west China. The strain was aerobic and Gram-staining-positive with an optimum NaCl concentration for growth of 0–5 % (w/v). The isolate had sparse aerial mycelium and produced bud-shaped spores at the end of the aerial mycelium on ISP medium 4. The isolate contained ll-diaminopimelic acid as the diagnostic diamino acid and ribose as the major whole-cell sugar. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol, phosphatidylinositol mannoside, one unidentified phospholipid and three unidentified glycolipids. The predominant menaquinones were MK-9(H6), MK-9(H8) and MK-9(H4). The major fatty acids were iso-C16 : 0, anteiso-C17 : 0 and anteiso-C15 : 0. The G+C content of the DNA was 74.4 mol%. Phylogenetic analysis showed that strain TRM 46012T had 16S rRNA gene sequence similarity of 95.7 % with the most closely related species with a validly published name, Streptomyces cheonanensis , and it could be distinguished from all species in the genus Streptomyces by using the data from this polyphasic taxonomic study. On the basis of these data, strain TRM 46012T should be designated as a representative of a novel species of the genus Streptomyces , for which the name Streptomyces aidingensis sp. nov. is proposed. The type strain is TRM 46012T ( = CGMCC 4.5739T = NBRC 108211T).


Author(s):  
Chanwit Suriyachadkun ◽  
Wipaporn Ngaemthao ◽  
Tawanmol Pujchakarn ◽  
Wuttichai Mhuantong ◽  
Suwanee Chunhametha

A novel actinomycete, designated strain ASG 168T, was isolated from cave rock collected from Stegodon Sea Cave in Thailand. Long chains of non-motile spores that were oval or spherical in shape with a smooth surface developed on aerial mycelia. Substrate mycelia fragmented into irregular rod-shaped elements. A polyphasic taxonomic study showed that strain ASG 168T had typical characteristics of members of the genus Prauserella . 16S rRNA gene sequence analysis indicated that strain ASG 168T shared 97.5 % similarity with Prauserella marina MS498T and 96.7 % with Prauserella coralliicola SCSIO 11529T. Average nucleotide identity values with P. coralliicola SCSIO 11529T and P. marina MS498T were 82.98 and 76.08 %, respectively. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars contained ribose, arabinose and galactose. The predominant menaquinone was MK-9(H4). The predominant fatty acids were iso-C16 : 0, C16 : 0 and summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c). The phospholipid profile consisted of phosphatidylethanolamine, phosphatidylmethylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannosides and two unknown phospholipids. The G+C content of the genomic DNA was 70.6 mol%. Differentiation of strain ASG 168T from closely related species was evident from digital DNA–DNA hybridization values of 29.2 and 21.3 % with P. coralliicola and P. marina , respectively. Based on comparative analysis of phenotypic, chemotaxonomic and genotypic data, the novel actinomycete strain ASG 168T (=TBRC 13679T=NBRC 114887T) is proposed to be the type strain of a novel species, Prauserella cavernicola sp. nov.


2014 ◽  
Vol 64 (Pt_1) ◽  
pp. 27-32 ◽  
Author(s):  
Na Yang ◽  
Biao Ren ◽  
Zhi-Heng Liu ◽  
Huan-Qin Dai ◽  
Jian Wang ◽  
...  

A Gram-positive, endospore-forming, rod-shaped bacterium, designated isolate J4T, was isolated from a neutral saline lake sample from Xinjiang Uyghur Autonomous Region, China, and subjected to a polyphasic taxonomic investigation. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain J4T is most closely related to Salinibacillus aidingensis 25-7T (with 96.7 % similarity), Salinibacillus kushneri 8-2T (96.5 %), Ornithinibacillus scapharcae TW25T (96.4 %), Salirhabdus euzebyi CVS-14T (96.4 %) and Ornithinibacillus californiensis MB-9T (96.2 %). Chemotaxonomic analysis showed menaquinone-7 (MK-7) to be the major isoprenoid quinone of strain J4T; diphosphatidylglycerol and phosphatidylglycerol were the major cellular polar lipids and the cell wall contained meso-diaminopimelic acid as the diagnostic diamino acid. The major cellular fatty acids were iso-C15 : 0 and anteiso-C15 : 0. The genomic DNA G+C content of strain J4T was determined to be 36.2 mol%. Strain J4T was positive for catalase activity and negative for oxidase activity. Strain J4T was observed to grow at 25–50 °C (optimal 35–42 °C), pH 6.5–8.0 (optimal 7.0–7.5) and in media containing 1–21 % (w/v) NaCl (optimal 9–12 %). Based on these data, strain J4T represents a novel species of the genus Salinibacillus and the name Salinibacillus xinjiangensis sp. nov. is proposed. The type strain is J4T ( = CGMCC 1.12331T = JCM 18732T).


Author(s):  
Qiao-Yan Zhang ◽  
Song Qin ◽  
Xiao-Xia Luo ◽  
Zhan-Feng Xia

A novel actinobacterium, designated TRM 44567T, was isolated from cotton soil in Xinjiang Uygur Autonomous Region, northwest PR China. Growth occurred at 16–45 °C, pH 5.0–9.0, and 0–7 % (w/v) NaCl, with optimum growth at 37 °C, pH 7.0–8.0 and 1 % (w/v) NaCl, respectively. Comparative 16S rRNA gene sequence analysis indicated that strain TRM 44567T was phylogenetically most closely related to Streptomyces chromofuscus NBRC 12851T (98.48 % sequence similarity); however, the average nucleotide identity between strain TRM 44567T and S. chromofuscus NBRC 12851T was only 83.77 %. Strain TRM 44567T possessed ll-diaminopimelic acid as the diagnostic cell-wall diamino acid. The predominant menaquinones were MK-9(H10), MK-9(H6) and MK-9(H4). The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol and phosphatidylinositol mannoside. The major fatty acids were iso-C16 : 0, C16 : 0, anteiso-C15 : 0, anteiso-C17 : 0, iso-C14 : 0 and iso-C15 : 0. The genomic DNA G+C content was 70.8 mol%. Strain TRM 44567T represents a novel species of the genus Streptomyces , for which the name Streptomyces gossypiisoli sp. nov. is proposed. The type strain is TRM 44567T (=KCTC 39957 T=CCTCC AA 2017011T).


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