Rhodococcus artemisiae sp. nov., an endophytic actinobacterium isolated from the pharmaceutical plant Artemisia annua L.

2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 900-905 ◽  
Author(s):  
Guo-Zhen Zhao ◽  
Jie Li ◽  
Wen-Yong Zhu ◽  
Shou-Zheng Tian ◽  
Li-Xing Zhao ◽  
...  

A Gram-positive, non-motile actinobacterium, designated YIM 65754T, was isolated from the stem of Artemisia annua L., collected from Yunnan province, south-west China. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YIM 65754T comprised an evolutionary lineage within the genus Rhodococcus . The isolate clustered with Rhodococcus pyridinivorans PDB9T, Rhodococcus gordoniae W 4937T and Rhodococcus rhodochrous DSM 43241T, with which it shared 98.4, 97.9 and 97.8 % 16S rRNA gene sequence similarities, respectively. However, DNA–DNA relatedness demonstrated that strain YIM 65754T was distinct from its closest phylogenetic neighbours. The cell-wall peptidoglycan contained meso-diaminopimelic acid, arabinose, galactose, mannose and glucose (cell-wall chemotype IV). The major menaquinone was MK-8(H2) and the predominant fatty acids were C16 : 0 (27.83 %), iso-C15 : 0 2-OH and/or C16 : 1ω7c (20.21 %) and 10-methyl C18 : 0 (17.50 %). The DNA G+C content was 66.2 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic evidence, the isolate represents a novel species of the genus Rhodococcus , for which the name Rhodococcus artemisiae sp. nov. is proposed; the type strain is YIM 65754T ( = CCTCC AA 209042T = DSM 45380T).

2014 ◽  
Vol 64 (Pt_5) ◽  
pp. 1622-1628 ◽  
Author(s):  
Geun-Hye Lee ◽  
Moon-Soo Rhee ◽  
Dong-Ho Chang ◽  
Kae Kyoung Kwon ◽  
Kyung Sook Bae ◽  
...  

Two novel bacterial strains, GH2-4T and GH2-5, were isolated from mangrove soil near the seashore of Weno island in Chuuk state, Micronesia, and were characterized by a polyphasic approach. The two strains were strictly aerobic, Gram-staining-positive, motile, endospore-forming rods that were catalase- and oxidase-positive. Colonies were circular, convex, stringy and transparent yellowish (GH2-4T) or opaque whitish (GH2-5). The 16S rRNA gene sequences of the two isolates were identical. The most closely related strains in terms of 16S rRNA gene sequence similarity were Bacillus kochii WCC 4582T, B. horneckiae DSM 23495T, B. azotoformans LMG 9581T, B. cohnii DSM 6307T and B. halmapalus DSM 8723T (95.6, 95.4, 95.4, 95.2 and 95.2 % similarity, respectively). The partial groEL sequence of strain GH2-4T was identical to that of strain GH2-5 and showed <85 % similarity to those of the most closely related strains. The isolates grew at pH 5–12 (optimal growth at pH 9), at 10–40 °C (optimum 30–35 °C) and at 0–9 % (w/v) NaCl (optimum 1–3 % NaCl). The cell-wall peptidoglycan of strains GH2-4T and GH2-5 contained meso-diaminopimelic acid and cell-wall hydrolysates contained ribose as a major sugar. The DNA G+C content was 36 mol%, and DNA–DNA relatedness between the isolates and five related reference strains was 20–24 %. Strain GH2-4T exhibited 81 % DNA–DNA relatedness with strain GH2-5. The major cellular fatty acids of both strains were iso-C15 : 0, iso-C16 : 0, iso-C14 : 0 and anteiso-C15 : 0 and the predominant menaquinone was MK-7. On the basis of the evidence from this polyphasic study, strains GH2-4T and GH2-5 ( = KCTC 33143 = JCM 18995 = DSM 27084) represent a novel species of the genus Bacillus , for which the name Bacillus solimangrovi sp. nov. is proposed; the type strain is GH2-4T ( = KCTC 33142T = JCM 18994T = DSM 27083T).


2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1207-1212 ◽  
Author(s):  
Hong-Fei Wang ◽  
Yong-Guang Zhang ◽  
Ji-Yue Chen ◽  
Jian-Wei Guo ◽  
Li Li ◽  
...  

A novel endophytic actinobacterium, designated EGI 6500707T, was isolated from the surface-sterilized root of a halophyte Anabasis elatior (C. A. Mey.) Schischk collected from Urumqi, Xinjiang province, north-west China, and characterized using a polyphasic approach. Cells were Gram-stain-positive, non-motile, short rods and produced white colonies. Growth occurred at 10–45 °C (optimum 25–30 °C), at pH 5–10 (optimum pH 8) and in presence of 0–4 % (w/v) NaCl (optimum 0–3 %). The predominant menaquinone was MK-9. The diagnostic phospholipids were diphosphatidylglycerol and phosphatidylglycerol. The major fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The DNA G+C content of strain EGI 6500707T was 69.1 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain EGI 6500707T should be placed in the genus Frigoribacterium (family Microbacteriaceae , phylum Actinobacteria ), and that the novel strain exhibited the highest 16S rRNA gene sequence similarity to Frigoribacterium faeni JCM 11265T (99.1 %) and Frigoribacterium mesophilum MSL-08T (96.5 %). DNA–DNA relatedness between strain EGI 6500707T and F. faeni JCM 11265T was 47.2 %. On the basis of phenotypic and chemotaxonomic characteristics, phylogenetic analysis and DNA–DNA relatedness data, strain EGI 6500707T represents a novel species of the genus Frigoribacterium , for which the name Frigoribacterium endophyticum sp. nov. is proposed. The type strain is EGI 6500707T ( = JCM 30093T = KCTC 29493T).


2015 ◽  
Vol 65 (Pt_3) ◽  
pp. 879-884 ◽  
Author(s):  
Peter Kämpfer ◽  
Stefanie P. Glaeser ◽  
Hans-Jürgen Busse ◽  
Usama Ramadan Abdelmohsen ◽  
Safwat Ahmed ◽  
...  

A Gram-staining-positive, aerobic organism, isolated from the Red Sea sponge Spheciospongia vagabunda was investigated to determine its taxonomic position. On the basis of results of 16S rRNA gene sequence analysis strain EG49T was most closely related to Actinokineospora cibodasensis and Actinokineospora baliensis (both 97.3 % similarity) and Actinokineospora diospyrosa and Actinokineospora auranticolor (both 97.0 % similarity). The 16S rRNA gene sequence similarity to all other species of the genus Actinokineospora was <97.0 %. The quinone system of strain EG49T contained the menaquinones MK-9(H4) (47 %), MK-9(H6) (27 %) and MK-9(H2) (15 %) in major amounts. Minor amounts of MK-7(H4) (2 %), MK-9(H0) (1 %), MK-9(H8) (3 %) and MK-10(H4) (3 %) were detected as well in addition to MK-8(H4), MK-8(H6), MK-10(H2) and MK-10(H6) (all <1 %). The diagnostic diamino acid of the peptidoglycan was meso-diaminopimelic acid. In the polar lipid profile, diphosphatidylglycerol, phosphatidylethanolamine and hydroxyphosphatidylethanolamine were predominant. Phosphatidylinositol-mannoside, two unidentified phospholipids and two glycoglipids as well as one aminoglycolipid, one aminolipid and one unidentified lipid were found in addition. The fatty acid profile was composed of mainly iso-branched fatty acids: iso-C16 : 0, iso-C14 : 0, iso-C15 : 0 and iso-C16 : 1H. All these findings clearly supported the classification of the strain as representing a member of the genus Actinokineospora . In addition, the results of physiological and biochemical tests also allowed phenotypic differentiation of strain EG49T from the most closely related species of the genus Actinokineospora . Strain EG49T represents a novel species of the genus Actinokineospora , for which we propose the name Actinokineospora spheciospongiae sp. nov., with strain EG49T ( = DSM 45935T = CCM 8480T = LMG 27700T) as the type strain.


2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3434-3440 ◽  
Author(s):  
Fatemeh Mohammadipanah ◽  
Javad Hamedi ◽  
Cathrin Spröer ◽  
Manfred Rohde ◽  
María del Carmen Montero-Calasanz ◽  
...  

The taxonomic position of a novel actinomycete isolated from soil in Fars Province (Iran) was determined using a polyphasic approach. Phenotypic characterization and 16S rRNA gene sequence analysis of the isolate matched those described for members of the genus Streptomyces . On ISP2 medium, strain HM 1154T produced a dark cream, branched substrate mycelium and Retinaculiaperti aerial hyphae that in some images also appeared spiral and that developed into greyish-white spore chains with a smooth surface. The isolate showed optimal growth at 28 °C and pH 6–9 with 0–4 % (w/v) NaCl. Whole-cell hydrolysates contained ll-diaminopimelic acid as diagnostic diamino acid, ribose and glucose. The main phospholipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylinositol, three unknown phospholipids and an unknown aminophospholipid; MK-9(H4) and MK-9(H2) were the predominant menaquinones. The major cellular fatty acids were the branched saturated iso-C16 : 0 and anteiso-C15 : 0. Strain HM 1154T exhibited the highest 16S rRNA gene sequence similarities to Streptomyces coerulescens DSM 40146T (99.4 %), Streptomyces varsoviensis DSM 40346T (99.3 %), Streptomyces youssoufiensis DSM 41920T (99.2 %), Streptomyces abikoensis DSM 40831T (99.2 %), Streptomyces rimosus subsp. rimosus DSM 40260T (99.1 %), Streptomyces luteireticuli DSM 40509T (99.1 %), Streptomyces thioluteus DSM 40027T (99.1 %), Streptomyces blastmyceticus DSM 40029T (99.0 %) and Streptomyces hiroshimensis DSM 40037T (99.0 %). DNA–DNA hybridization studies showed relatedness values of 11.0–35.8 % with the closest related species. Based on these results, strain HM 1154T is considered to represent a novel species within the genus Streptomyces , for which the name Streptomyces zagrosensis sp. nov. is proposed. The type strain is HM 1154T ( = DSM 42018T = UTMC 1154T = CECT 8305T).


2014 ◽  
Vol 64 (Pt_5) ◽  
pp. 1629-1634 ◽  
Author(s):  
Mustafa Camas ◽  
Aysel Veyisoglu ◽  
Nevzat Sahin

A novel Gram-reaction-positive, rod-shaped, non-motile and mycolic acid-containing strain, CR3272T, isolated from soil, was studied using a polyphasic approach. The organism showed a combination of chemotaxonomic and morphological properties typical of the genus Nocardia . The cell wall contained meso-diaminopimelic acid (type IV) and whole-cell sugars were galactose, glucose, arabinose and xylose. The predominant menaquinone was MK-8(H4cyc). The major phospholipids were diphosphatidylglycerol and phosphatidylinositol mannosides. Major fatty acids were C16 : 0, C18 : 1 cis9, C18 : 0 10-methyl (TBSA) and C16 : 1 cis9. The novel strain formed distinct phyletic line in the Nocardia 16S rRNA gene tree and was closely associated with Nocardia goodfellowii A2012T (98.6 % 16S rRNA gene sequence similarity), Nocardia alba YIM 30243T (98.5 %) and Nocardia caishijiensis F829T (97.9 %). However, DNA–DNA relatedness values and phenotypic data demonstrated that strain CR3272T was clearly distinguished from all closely related species of the genus Nocardia . It is concluded that the organism be classified as representing a novel species of the genus Nocardia , for which the name Nocardia sungurluensis is proposed. The type strain is CR3272T ( = DSM 45714T = KCTC 29094T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 465-471 ◽  
Author(s):  
C. Y. Hwang ◽  
I. Lee ◽  
Y. Cho ◽  
Y. M. Lee ◽  
K. Baek ◽  
...  

A Gram-stain-positive, rod-shaped and non-motile strain, designated PAMC 27367T, was isolated from rainwater collected on the Bering Sea. Analysis of the 16S rRNA gene sequence of the strain showed an affiliation with the genus Rhodococcus . Phylogenetic analyses revealed that strain PAMC 27367T formed a robust clade with the type strains of Rhodococcus rhodnii , Rhodococcus aetherivorans and Rhodococcus ruber with 16S rRNA gene sequence similarities of 96.3 %, 95.8 % and 95.5 %, respectively. Cells of the strain grew optimally at 25 °C and at pH 6.5–7.0 in the presence of 0–2 % (w/v) sea salts. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside and three unknown phospholipids. The major cellular fatty acids (>10 %) were iso-C16 : 0, C17 : 1ω8c and 10-methyl C17 : 0. Cell wall analysis showed that strain PAMC 27367T contained meso-diaminopimelic acid. The genomic DNA G+C content was 77.1 mol%. Based on the phylogenetic, chemotaxonomic and phenotypic data presented here, we propose a novel species with the name Rhodococcus aerolatus sp. nov., with PAMC 27367T ( = KCTC 29240T = JCM 19485T) as the type strain.


2020 ◽  
Vol 70 (8) ◽  
pp. 4683-4690 ◽  
Author(s):  
Junqin Li ◽  
Wenjing Lei ◽  
Jing Yang ◽  
Shan Lu ◽  
Dong Jin ◽  
...  

Four novel strains (592T, S592, MF47T and SMF47) were isolated from Tibetan antelopes (Pantholops hodgsonii) and plateau pikas (Ochotona curzoniae), respectively. The cells were aerobic, non-motile, Gram-stain- and catalase-positive, rod-shaped bacteria. The 16S rRNA gene sequences of the four strains showed highest similarities to Aeromicrobium fastidiosum DSM 10552T (98.1, 98.6, 98.7 and 98.7 %, respectively), and the phylogenetic analyses based on 16S rRNA gene and genomic sequences indicated that strains 592T and MF47T represent two novel species. The four isolates produced acid from l-rhamnose, d-xylose and cellobiose, but were unable to reduce nitrate. The DNA G+C contents of strains 592T and MF47T were 70.3 and 69.8 mol%, respectively. The digital DNA–DNA hybridization value between strains 592T and MF47T was 32.6 %, lower than the threshold of 70 %, indicating they belong to different species. The four strains’ genomes displayed less than 24.6 % DNA–DNA relatedness with all available genomes of the genus Aeromicrobium in the NCBI database, including Aeromicrobium fastidiosum NBRC 14897T and Aeromicrobium ginsengisoli JCM 14732T. The major fatty acids of the four strains were C18 : 1  ω9c and C18 : 0 10-methyl, and the main polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol. The predominant respiratory quinones were MK-9(H4) and MK-8(H4). The cell-wall peptidoglycan contained ll-diaminopimelic acid. Based on these genotypic, phenotypic and biochemical analyses, it is proposed that the four unidentified bacteria be classified as two novel species, Aeromicrobium chenweiae sp. nov. and Aeromicrobium yanjiei sp. nov. The type strains are 592T (=CGMCC1.16526T=DSM 106289T) and MF47T (=CGMCC 1.17444T=JCM 33790T), respectively.


2020 ◽  
Vol 70 (10) ◽  
pp. 5190-5196 ◽  
Author(s):  
Yan Huang ◽  
Zhixian Wei ◽  
Lulu Cong ◽  
Zhongwei Qiu ◽  
Rui Chen ◽  
...  

An anaerobic, Gram-stain-positive, spore-forming bacterium, designated strain PYR-10T, was isolated from a mesophilic methanogenic consortium. Cells were 0.7–1.2×6.0–6.3 µm, straight or slightly curved rods, with flagellar motility. Growth was observed in PYG (peptone-yeast glucose) medium at pH 5.5–8.0 (optimum, pH 6.5), 30–55 °C (45 °C) and in NaCl concentrations of 0–15 g l−1 (0 g l−1). Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain PYR-10T belongs to the genus Clostridium . The strain showed 95.4, 93.7, 93.5 and 93.0 % 16S rRNA gene sequence similarity to Clostridium swellfunianum DSM 27788T, Clostridium pascui DSM 10365T, Clostridium pasteurianum DSM 525T and Clostridium punense DSM 28650T, respectively. The genomic DNA G+C content was 27.7 mol%. The major cellular fatty acids of strain PYR-10T were iso-C15 : 0, C16 : 0, C16 : 0 DMA, anteiso-C15 : 0 and C14 : 0. The main polar lipids were glycolipid, phosphoaminoglycolipid, diphosphatidylglycerol, phosphatidylglycerol, phospholipids, phosphatidylethanolamine and lipids. An unknown menaquinone was detected. 2,6-Diaminopimelic acid was not detected. The whole-cell sugars contained ribose and lower amounts of glucose. Based on the results of phylogenetic, chemotaxonomic and phenotypic analyses, strain PYR-10T represents a novel species of the genus Clostridium , for which the name Clostridium prolinivorans sp. nov. is proposed. The type strain is strain PYR-10T (=JCM 33161T=CCAM 531T=CGMCC 1.5286T).


Author(s):  
Talha Gencbay ◽  
Hayrettin Saygin ◽  
Kiymet Guven ◽  
Ahmet Ridvan Topkara ◽  
Salih Saricaoglu ◽  
...  

A novel actinomycete, designated strain HC44T, was isolated from a soil sample collected from Hacibektaş, Turkey, and characterized using a polyphasic approach. The strain had morphological characteristics and chemotaxonomic properties identical to those of members of the genus Streptomyces . Phylogenetic analyses based on 16S rRNA gene sequence comparisons revealed that HC44T clustered with members of the genus Streptomyces and the highest 16S rRNA gene sequence similarity values were obtained with Streptomyces vastus NBRC 13094T (97.6 %) and Streptomyces kalpinensis TRM 46509T (96.9 %). Multi-locus sequence analysis (MLSA) based on five housekeeping genes (atpD, gyrB, recA, rpoB and trpB) showed that the MLSA evolutionary distance value was 0.043 between strain HC44T and S. vastus NBRC 13094T. Whole-cell hydrolysates contained ll-diaminopimelic acid, glucose, mannose and ribose. The predominant menaquinones were MK-9(H6) and MK-9(H8). The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositol mannoside. The DNA G+C content of the draft genome sequence, consisting of 11.2 Mbp, was 69.8 mol%. On the basis of polyphasic taxonomic evidence, strain HC44T represents a novel species of the genus Streptomyces , for which the name Streptomyces scabichelini sp. nov. is proposed. The type strain is HC44T (=DSM 106874T=KCTC 39872T).


Author(s):  
Xing-Kui Zhou ◽  
Ying Huang ◽  
Ti- Kun Zhang ◽  
Jian- Jin Liu ◽  
Zi- Yi Liu ◽  
...  

An aerobic, rod-shaped, Gram-stain-positive, actinobacterial strain, designated 1.0914T, was isolated from a stalactite sample collected from a cave located in Guizhou Province, southwest PR China. Based on 16S rRNA gene sequence analysis, strain 1.0914T shared highest similarities values with Nocardioides pelophilus CGMCC 4.7388T (97.7 %), Nocardioides immobilis CCTCC AB 2017083T (97.5 %) and Nocardioides silvaticus CCTCC AB 2018079T (97.3 %) and values lower than 97.0 % to other members of the genus Nocardioides . Phylogenetic trees based on 16S rRNA gene sequences indicated that strain 1.0914T formed an isolated branch with N. pelophilus CGMCC 4.7388T, N. immobilis CCTCC AB 2017083T and N. silvaticus CCTCC AB 2018079T. The polar lipids contained phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol and one unidentified phospholipid in the cellular membrane. The major fatty acids were identified as iso-C16 : 0, C18 : 1 ω9c, C17 : 1 ω8c and C16 : 0. The predominant respiratory quinone was MK-8(H4) and ll-diaminopimelic acid was the diagnostic diamino acid in the cell-wall peptidoglycan. The genomic DNA G+C content was 71.1 mol%. The orthologous average nucleotide identiy values between N. pelophilus CGMCC 4.7388T, N. immobilis CCTCC AB 2017083T, N. silvaticus CCTCC 2018079T and strain 1.0914T were 82.3, 81.7 and 81.9 % respectively. DNA–DNA hybridization values between N. pelophilus CGMCC 4.7388T, N. immobilis CCTCC AB 2017083T, N. silvaticus CCTCC 2018079T and strain 1.0914T were 25.2, 24.6 and 24.5 % respectively. The phylogenetic, phenotypic and chemotaxonomic data supported the classification of strain 1.0914T as representing a new species of Nocardioides , for which the name Nocardioides stalactiti sp. nov. is proposed. The type strain is 1.0914T (=CCTCC AB 2018266T=KCTC 49243T).


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