Prauserella cavernicola sp. nov., isolated from cave rock

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.

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_8) ◽  
pp. 3037-3042 ◽  
Author(s):  
Chanwit Suriyachadkun ◽  
Wipaporn Ngaemthao ◽  
Suwanee Chunhametha ◽  
Chitti Thawai ◽  
Jean-Jacques Sanglier

A Gram-positive filamentous bacterial strain that developed large campanulate sporangia at the ends of sporangiophores on substrate mycelium was isolated from bamboo forest soil in Thailand. According to the results of a polyphasic taxonomic study, our isolate had typical characteristics of members of the genus Actinoplanes . The 16S rRNA gene sequence analysis also indicated that strain A-T 6646T belonged to the genus Actinoplanes , being most closely related to Actinoplanes liguriensis DSM 43865T (97.61 %) and Actinoplanes octamycinicus NBRC 14524T (97.52 %). The DNA–DNA relatedness values, which differentiate the new strain from the most closely related species, were significantly below 70 %. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars contained xylose and arabinose. The predominant menaquinone was MK-9(H4). The diagnostic phospholipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol. The predominant cellular fatty acids were iso-C16 : 0, anteiso-C17 : 0, iso-C15 : 0 and anteiso-C15 : 0. Following an evaluation of phenotypic, chemotaxonomic and genotypic studies, the isolate is proposed to represent a novel species to be named Actinoplanes siamensis sp. nov. The type strain is A-T 6646T ( = BCC 46194T = NBRC 109076T).


2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1764-1769 ◽  
Author(s):  
Chanwit Suriyachadkun ◽  
Wipaporn Ngaemthao ◽  
Suwanee Chunhametha ◽  
Chitti Thawai ◽  
Jean-Jacques Sanglier

A novel actinomycete, A-T 8343T was isolated from a moist evergreen forest soil sample collected in the Trat Province, Thailand. Based on 16S rRNA gene sequence analysis, strain A-T 8343T belonged to the genus Sinosporangium and was closely related to Sinosporangium siamense A-T 1946T (98.81 %) and Sinosporangium album 6014T (98.54 %). The DNA–DNA relatedness values were 21.8–27 % with S. siamense A-T 1946T and 31.1–31.9 % with S. album 6014T, which were significantly below 70 %. The result differentiated A-T 8343T from the closest species. The organism developed spherical sporangia containing non-motile spores on aerial mycelia. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars contained rhamnose, ribose, madurose and glucose. The predominant menaquinones were MK-9(H2) and MK-9(H4). The diagnostic phospholipids were phosphatidylmethylethanolamine, phosphatidylethanolamine, hydroxyl-phosphatidylethanolamine, diphosphatidylglycerol, lyso-phosphatidylethanolamine, N-acetylglucosamine-containing phospholipids, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol-mannosides, aminophosphoglycolipid and one unknown phospholipid. The major cellular fatty acids were saturated C16 : 0, iso C16 : 0, unsaturated C16 : 1 and C18 : 1. Following an evaluation of phenotypic, chemotaxonomic and genotypic characteristics, the new isolate is proposed as a representative novel species of the genus Sinosporangium to be named Sinosporangium fuscum sp. nov. The type strain is A-T 8343T ( = BCC 52770T = NBRC 109516T).


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 4109-4114 ◽  
Author(s):  
Jun-Muk Lim ◽  
Soo-Jin Kim ◽  
Moriyuki Hamada ◽  
Jae-Hyung Ahn ◽  
Hang-Yeon Weon ◽  
...  

Strain KIS2-16T was isolated from a soil sample collected from Daecheong Island of Incheon region, South Korea. KIS2-16T was Gram-staining-positive, aerobic, non-spore-forming, non-motile, catalase-positive, oxidase-negative and mesophilic. On the basis of 16S rRNA gene sequence analysis, strain KIS2-16T represented a member of the genus Nocardioides , being most closely related to the type strains of species of the genus Nocardioides , Nocardioides maradonensis RP-B30T (97.8 % sequence similarity) and Nocardioides ultimimeridianus RP-B26T (97.0 %). The fatty acid profile of KIS2-16T was dominated by C18 : 1ω9c, C17 : 1ω8c, C16 : 0, C18 : 0 10-methyl (TBSA), C16 : 0 2-OH and C17 : 0 2-OH. The major isoprenoid quinone was MK-8(H4), and the major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol. The peptidoglycan structure was A3γ-type with ll-diaminopimelic acid. The genomic DNA G+C content of KIS2-16T was 64.9 mol%. Strain KIS2-16T showed DNA–DNA hybridization values of less than 70 % with the closely related species of the genus Nocardioides . Based on phenotypic, genotypic and phylogenetic data, the isolate represents a novel species of the genus Nocardioides , for which the name Nocardioides daecheongensis sp. nov. (type strain KIS2-16T = DSM 27136T = KACC 17297T = NBRC 109597T) is proposed.


2014 ◽  
Vol 64 (Pt_4) ◽  
pp. 1180-1185 ◽  
Author(s):  
Wipaporn Ngaemthao ◽  
Chanwit Suriyachadkun ◽  
Suwanee Chunhametha ◽  
Nantawan Niemhom ◽  
Chitti Thawai ◽  
...  

A novel Gram-stain–positive, filamentous bacterial strain (A-T 7458T) was isolated from soil collected from hill evergreen forest in Thailand. The strain developed cylindrical sporangia containing a longitudinal pair of motile spores, on short ramifications of aerial mycelia. From a taxonomic study using a polyphasic approach, strain A-T 7458T had typical characteristics of members of the genus Planobispora . 16S rRNA gene sequence analysis indicated that the isolate was closely related to Planobispora siamensis A-T 4600T (98.5 %), Planobispora rosea JCM 3166T (97.6 %) and Planobispora longispora NBRC 13918T (97.6 %). The DNA–DNA relatedness values, which differentiated the novel strain from the closest species, were significantly below 70 %. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars contained ribose, madurose, mannose and glucose. The predominant menaquinone was MK-9(H2). The diagnostic phospholipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylinositol, phosphatidylinositol-mannoside and aminophosphoglycolipid. The predominant cellular fatty acids were unsaturated C17 : 1 and C18 : 1, and saturated C16 : 0 and C17 : 0. Following an evaluation of phenotypic, chemotaxonomic and genotypic characteristics, the novel isolate is proposed to represent a novel species of the genus Planobispora , to be named Planobispora takensis sp. nov. The type strain is A-T 7458T ( = BCC 48396T = NBRC 109077T).


2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 2945-2950 ◽  
Author(s):  
Xuefang Zhang ◽  
Jianli Zhang ◽  
Jimei Zheng ◽  
Di Xin ◽  
Yuhua Xin ◽  
...  

A novel actinomycete, strain FX61T, was isolated from a saline sample collected from the Inner Mongolian Autonomous Region in China and subjected to a taxonomic study using a polyphasic approach. The predominant menaquinones were MK-9(H6), MK-9(H8) and MK-9(H4). The major fatty acids were iso-C16 : 0, anteiso-C15 : 0, iso-C15 : 0, iso-C16 : 1 H, C16 : 0, iso-C14 : 0 and anteiso-C17 : 0. The phospholipid profile contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, two phosphatidylinositol mannosides and an unidentified phospholipid. The G+C content of the genomic DNA was 72 mol%. The 16S rRNA gene sequence of the isolate had greater than 98 % similarity with those of Streptomyces griseoincarnatus ATCC 23623T (98.2 %), Streptomyces labedae DSM 41446T (98.2 %), Streptomyces variabilis ATCC 19815T (98.2 %), Streptomyces erythrogriseus ATCC 27427T (98.2 %), Streptomyces matensis ATCC 23935T (98.2 %), Streptomyces althioticus ATCC 19724T (98.2 %) and Streptomyces luteosporeus ATCC 33049T (98.0 %), showing that the novel strain should be assigned to the genus Streptomyces . DNA–DNA hybridizations with the seven above-mentioned members of the genus Streptomyces showed 29.8, 28.5, 27.0, 25.5, 25.0, 23.5 and 22.0 % relatedness, respectively. On the basis of the phenotypic characteristics and genotypic distinctiveness, strain FX61T should be classified as a novel species of the genus Streptomyces , for which the name Streptomyces wuyuanensis sp. nov. is proposed. The type strain is FX61T ( = CGMCC 4.7042T = KCTC 29112T).


2020 ◽  
Vol 70 (3) ◽  
pp. 1882-1887 ◽  
Author(s):  
Jinjuan Liu ◽  
Yong Sun ◽  
Jinrong Liu ◽  
Yunjian Wu ◽  
Chengliang Cao ◽  
...  

A Gram-stain-positive, aerobic actinomycete, designated strain BMP B8144T, was isolated from desert soil, in Xinjiang province, northwest China. The isolate produced scanty aerial mycelium and fragmented substrate mycelium on most tested media. Cell-wall hydrolysates contained meso-diaminopimelic acid, galactose and mannose. The diagnostic phospholipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylhydroxylethanolamine, phosphatidylinositol, and phosphatidylinositol mannosides. The major fatty acids included iso-C16 : 0, C17 : 1 ω8c and iso-C15 : 0. The predominant menaquinones were MK-9(H4) and MK-10(H4). The DNA G+C content was 70.4 mol% (genome). Based on the 16S rRNA gene sequence analysis on EzBioCloud server, strain BMP B8144T showed the closest similarities to Saccharothrix lopnurensis YIM LPA2hT (98.9 %) and ‘ Saccharothrix yanglingensis ’ Hhs.015 (98.6 %). However, it can be distinguished from the closest strains based on the low levels of DNA–DNA relatedness (59.3±1.8 and 47.9±2.3 %, respectively). A combination of morphological, chemotaxonomic and phylogenetic characteristics, strain BMP B8144T represents a novel species of the genus Saccharothrix , for which the name Saccharothrix deserti sp. nov. is proposed. The type strain is BMP B8144T (=CGMCC 4.7490T=KCTC 49001T).


2020 ◽  
Vol 70 (5) ◽  
pp. 3316-3322 ◽  
Author(s):  
Nattaporn Klykleung ◽  
Masahiro Yuki ◽  
Takuji Kudo ◽  
Moriya Ohkuma ◽  
Wongsakorn Phongsopitanun ◽  
...  

An endophytic actinomycete, strain 3MP-10T, isolated from the root of Mimosa pudica was taxonomically studied based upon polyphasic approaches. This strain formed spiral spore chains on aerial mycelia. ll-Diaminopimelic acid, glucose and ribose were found in the whole-cell hydrolysates. It belonged to the genus Streptomyces and was closely related to Streptomyces zhaozhouensis DSM 42101T (98.9 %) and Streptomyces sedi JCM 16909T (98.6 %) based on 16S rRNA gene sequence analysis results. The major menaquinones were MK-10(H8), MK-10(H6) and MK-9(H8). The predominant cellular fatty acids were iso-C16 : 0, anteiso-C15 : 0 and anteiso-C17 : 0. The detected phospholipids were diphosphatidylglycerol, phosphatidylinositol mannoside, phosphatidylinositol, phosphatidylethanolamine and phosphatidylglycerol. Strain 3MP-10T had a genome size of 7.2 Mb with a genome G+C content of 73.4 mol%. Results of in silico genome-based similarity analysis revealed ANIb values of 84.94 and 84.77 %, ANIm values of 88.01 and 87.92 %, and dDDH values of 29.9 and 29.6 % when compared with S. zhaozhouensis DSM 42101T and S. sedi JCM 16909T, respectively. Based on the polyphasic approach, digital DNA–DNA relatedness and average nucleotide identity, we propose that the novel actinomycete represents a novel species, Streptomyces mimosae, with type strain 3MP-10T (=JCM 33328T=TISTR 2646T).


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).


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 2011-2017 ◽  
Author(s):  
Anil Sazak ◽  
Mustafa Camas ◽  
Cathrin Spröer ◽  
Hans-Peter Klenk ◽  
Nevzat Sahin

A novel actinobacterium, strain A8036T, isolated from soil, was investigated by using a polyphasic taxonomic approach. The organism formed extensively branched substrate hyphae that generated spiral chains of spores with irregular surfaces. The cell wall contained meso-diaminopimelic acid (type III) and cell-wall sugars were glucose, madurose, mannose and ribose. The predominant menaquinones were MK-9(H6) and MK-9(H4). The phospholipids were diphosphatidylglycerol, phosphatidylinositol and phosphatidylinositol mannosides. The major cellular fatty acids were iso-C16 : 0, C17 : 1 cis9, C16 : 0, C15 : 0 and 10-methyl C17 : 0. Based on 16S rRNA gene sequence analysis, the closest phylogenetic neighbours of strain A8036T were Actinomadura meyerae DSM 44715T (99.23 % similarity), Actinomadura bangladeshensis DSM 45347T (98.9 %) and Actinomadura chokoriensis DSM 45346T (98.3 %). However, DNA–DNA relatedness and phenotypic data demonstrated that strain A8036T could be clearly distinguished from the type strains of all closely related Actinomadura species. Strain A8036T is therefore considered to represent a novel species of the genus Actinomadura , for which the name Actinomadura geliboluensis sp. nov. is proposed. The type strain is A8036T ( = DSM 45508T = KCTC 19868T).


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