scholarly journals Plantactinospora sonchi sp. nov., an actinobacterium isolated from the leaves of common sowthistle (Sonchus oleraceus L.)

2015 ◽  
Vol 65 (Pt_12) ◽  
pp. 4895-4901 ◽  
Author(s):  
Zhaoxu Ma ◽  
Chongxi Liu ◽  
Jianlong Fan ◽  
Hairong He ◽  
Chuang Li ◽  
...  

A novel actinobacterium, designated strain NEAU-QY2T, was isolated from the leaves of Sonchus oleraceus L. specimen, collected from Wuchang, Heilongjiang Province, China. A polyphasic study was carried out to establish the taxonomic position of this strain. The organism formed single spores with rough surfaces on substrate mycelia. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NEAU-QY2T belonged to the genus Plantactinospora and formed a monophyletic clade with its closest related strains Plantactinospora endophytica YIM 68255T (99.2 % 16S rRNA gene sequence similarity), Plantactinospora veratri NEAU-FHS4T (98.8 %) and Plantactinospora mayteni YIM 61359T (98.7 %), an association that was supported by a bootstrap value of 90 % in the neighbour-joining tree and also recovered with the maximum-likelihood algorithm. However, DNA–DNA hybridization values between strain NEAU-QY2T and the three closely related strains were below 70 %. With reference to phenotypic characteristics, phylogenetic data and DNA–DNA hybridization results, strain NEAU-QY2T was distinguished from closely related strains and is classified as representing a novel species of the genus Plantactinospora, for which the name Plantactinospora sonchi sp. nov. is proposed. The type strain is NEAU-QY2T ( = CGMCC 4.7216T = JCM 30345T).

2007 ◽  
Vol 57 (5) ◽  
pp. 947-950 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Jung-Sook Lee ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped, Flavobacterium-like bacterial strain, DS-20T, was isolated from soil from the island of Dokdo, Korea, and subjected to a polyphasic taxonomic study. Strain DS-20T grew optimally at pH 6.5–7.0 and 25 °C. It contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C17 : 0 3-OH and iso-C17 : 1 ω9c as the major fatty acids. The DNA G+C content was 38.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-20T belonged to the genus Flavobacterium. Levels of 16S rRNA gene sequence similarity between strain DS-20T and the type strains of recognized Flavobacterium species were below 94.9 %. Strain DS-20T differed from phylogenetically related Flavobacterium species in several phenotypic characteristics. On the basis of its phenotypic and phylogenetic distinctiveness, strain DS-20T was classified in the genus Flavobacterium as representing a novel species, for which the name Flavobacterium terrigena sp. nov. is proposed. The type strain is DS-20T (=KCTC 12761T=DSM 17934T).


2007 ◽  
Vol 57 (10) ◽  
pp. 2236-2240 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Jung-Sook Lee ◽  
Hyun Woo Oh ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped, Brevundimonas-like bacterial strain, DS-18T, was isolated from soil in Dokdo, Korea, and its exact taxonomic position was investigated by using a polyphasic approach. Strain DS-18T grew optimally at pH 6.5–7.0 and 25 °C without NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-18T belonged to the genus Brevundimonas. Strain DS-18T contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c and C16 : 0 as the major fatty acids. The DNA G+C content was 68.7 mol%. Strain DS-18T exhibited levels of 16S rRNA gene sequence similarity of 96.3–98.7 % to the type strains of Brevundimonas species and Mycoplana bullata. Mean DNA–DNA relatedness values between strain DS-18T and the type strains of phylogenetically related Brevundimonas species and M. bullata were in the range 15–32 %. Strain DS-18T differed from Brevundimonas species and M. bullata in several phenotypic characteristics. On the basis of phenotypic, phylogenetic and genetic data, strain DS-18T represents a novel species of the genus Brevundimonas, for which the name Brevundimonas lenta sp. nov. is proposed. The type strain is DS-18T (=KCTC 12871T =JCM 14602T).


2006 ◽  
Vol 56 (5) ◽  
pp. 997-1000 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped Flavobacterium-like bacterial strain, DS-6T, was isolated from soil from the island of Dokdo, Korea, and subjected to a polyphasic taxonomic study. Strain DS-6T grew optimally at pH 7.0 and 25 °C in the presence of 0–0.5 % (w/v) NaCl. It contained MK-6 as the predominant menaquinone and iso-C15 : 0 and iso-C17 : 0 3-OH as the major fatty acids. The DNA G+C content was 36.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain DS-6T belonged to the genus Flavobacterium. Levels of 16S rRNA gene sequence similarity between strain DS-6T and the type strains of Flavobacterium species were below 95.4 %. Strain DS-6T differed from some phylogenetically related Flavobacterium species in several phenotypic characteristics. On the basis of phenotypic and phylogenetic distinctiveness, DS-6T (=KCTC 12542T=CIP 108840T) was classified in the genus Flavobacterium as the type strain of a novel species, for which the name Flavobacterium soli sp. nov. is proposed.


2011 ◽  
Vol 61 (10) ◽  
pp. 2333-2337 ◽  
Author(s):  
De-Chao Zhang ◽  
Hong-Can Liu ◽  
Yu-Guang Zhou ◽  
Franz Schinner ◽  
Rosa Margesin

A Gram-negative, aerobic, motile rod, designated BZ93T, was isolated from soil from an industrial site. The strain grew at 5–30 °C. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BZ93T was related to members of the genus Pseudomonas and was related most closely to Pseudomonas xiamenensis C10-2T (97.8 % 16S rRNA gene sequence similarity) and Pseudomonas pertucinogena IFO 14163T (97.4 %). The predominant cellular fatty acids of strain BZ93T were C18 : 1ω7c (54.8 %), summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH; 10.3 %), C16 : 0 (9.9 %) and C17 : 0 cyclo (7.4 %). The major quinone was ubiquinone 9. The major phospholipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and an unknown phospholipid. The genomic DNA G+C content was 61.8 mol%. On the basis of phenotypic characteristics, phylogenetic analysis and DNA–DNA relatedness, a novel species, Pseudomonas bauzanensis sp. nov., is proposed. The type strain is BZ93T ( = DSM 22558T  = CGMCC 1.9095T = LMG 26048T).


Author(s):  
Yong-Taek Jung ◽  
Soo-Young Lee ◽  
Won-Chan Choi ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-negative, non-sporulating, non-flagellated rod, designated BR-9T, was isolated from soil collected on the Korean peninsula. Strain BR-9T grew optimally at pH 6.0–7.0, at 30 °C and in the absence of NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain BR-9T belonged to the genus Pedobacter and clustered with Pedobacter insulae DS-139T and Pedobacter koreensis WPCB189T. Strain BR-9T exhibited 98.2 and 97.5 % 16S rRNA gene sequence similarity with P. insulae DS-139T and P. koreensis WPCB189T, respectively, and <96.7 % sequence similarity with the type strains of other species in the genus Pedobacter. Strain BR-9T contained MK-7 as the predominant menaquinone and iso-C15 : 0 and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) as the major fatty acids. The DNA G+C content of strain BR-9T was 38.5 mol%. DNA–DNA relatedness between strain BR-9T and P. insulae DS-139T and P. koreensis KCTC 12536T was 3.4–4.2 %, which indicated that the isolate was genetically distinct from these type strains. Strain BR-9T was also distinguishable by differences in phenotypic properties. On the basis of the data presented, strain BR-9T is considered to represent a novel species of the genus Pedobacter, for which the name Pedobacter boryungensis sp. nov. is proposed. The type strain is BR-9T ( = KCTC 23344T  = CCUG 60024T).


2011 ◽  
Vol 61 (6) ◽  
pp. 1413-1417 ◽  
Author(s):  
Yochan Joung ◽  
Kiseong Joh

A Gram-staining-negative, non-motile, yellow-pigmented bacterial strain, designated HMD1043T, was isolated from a mesotrophic artificial lake in Korea. The major fatty acids were anteiso-C15 : 0 (28.3 %), iso-C15 : 0 (22.9 %), summed feature 9 (comprising iso-C17 : 1ω9c and/or 10-methyl C16 : 0; 8.8 %) and iso-C13 : 0 (5.3 %). The DNA G+C content was 31.3 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain HMD1043T formed a lineage within the genus Chryseobacterium and was most closely related to Chryseobacterium antarcticum AT1013T (96.8 % 16S rRNA gene sequence similarity) and Chryseobacterium jeonii AT1047T (96.4 %). On the basis of the evidence presented in this study, strain HMD1043T is described as belonging to a novel species of the genus Chryseobacterium, for which the name Chryseobacterium yonginense sp. nov. is proposed. The type strain is HMD1043T ( = KCTC 22744T  = CECT 7547T).


2010 ◽  
Vol 60 (12) ◽  
pp. 2719-2723 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sung-Ran Moon ◽  
Young-Hyun Park ◽  
Jung-Ho Kim ◽  
Hoon Kim ◽  
...  

A novel Gram-negative, aerobic, motile, short rod-shaped bacterium, designated MS-3T, was isolated from a crude oil-contaminated seashore in Taean, Korea. Strain MS-3T grew at 4–30 °C, at pH 6.0–9.5 and with 0–5 % NaCl and was oxidase- and catalase-positive. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain MS-3T was most similar to Pseudomonas marincola KMM 3042T (97.9 % 16S rRNA gene sequence similarity), P. cuatrocienegasensis 1NT (97.8 %), P. borbori R-20821T (97.3 %) and P. lundensis ATCC 49968T (97.1 %). Relatively low levels of DNA–DNA relatedness were found between strain MS-3T and P. cuatrocienegasensis LMG 24676T (57.2 %), P. borbori LMG 23199T (39.7 %), P. marincola KMM 3042T (32.2 %) and P. lundensis KACC 10832T (32.1 %), which support the classification of strain MS-3T within a novel species of the genus Pseudomonas. The G+C content of the genomic DNA of strain MS-3T was 57.6 mol% and the major isoprenoid quinone was Q-9. Strain MS-3T contained summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1 ω7c; 38.0 %), C16 : 0 (24.4 %), C18 : 1 ω7c (12.8 %), C12 : 0 (9.6 %) and C10 : 0 3-OH (4.9 %) as the major cellular fatty acids. On the basis of the phenotypic, genotypic and phylogenetic data, strain MS-3T represents a novel species of the genus Pseudomonas, for which the name Pseudomonas taeanensis sp. nov. is proposed. The type strain is MS-3T (=KCTC 22612T =KACC 14032T =JCM 16046T =NBRL 105641T).


Author(s):  
So-Jung Kang ◽  
Soo-Young Lee ◽  
Mi-Hwa Lee ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-negative, non-flagellated, non-spore-forming bacterium, designated YCS-6T, that was motile by gliding, was isolated from seawater on the southern coast of Korea. Strain YCS-6T grew optimally at 30 °C and with 2 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YCS-6T fell within the genus Tenacibaculum and was most closely associated with Tenacibaculum litopenaei B-IT, with which the isolate exhibited 95.9 % 16S rRNA gene sequence similarity. Sequence similarity between strain YCS-6T and other members of the genus Tenacibaculum was 93.8–95.7 %. Strain YCS-6T contained menaquinone-6 (MK-6) as the predominant respiratory quinone and iso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), iso-C15 : 0 3-OH and iso-C15 : 1 G as the major fatty acids. The DNA G+C content was 32.7 mol%. Differential phenotypic properties and phylogenetic distinctiveness distinguished strain YCS-6T from all other members of the genus Tenacibaculum. On the basis of our phenotypic, chemotaxonomic and phylogenetic data, strain YCS-6T is considered to represent a novel species of the genus Tenacibaculum, for which the name Tenacibaculum geojense sp. nov. is proposed. The type strain is YCS-6T ( = KCTC 23423T  = CCUG 60527T).


2007 ◽  
Vol 57 (6) ◽  
pp. 1355-1359 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped bacterial strain, K105T, was isolated from wastewater of a textile dye works in Korea and subjected to a polyphasic taxonomic study. Strain K105T grew optimally at pH 6.5–7.5 and 30–37 °C. It contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C17 : 1 ω9c, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1 ω7c and/or iso-C15 : 0 2-OH) as the major fatty acids. The DNA G+C content was 36.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain K105T belonged to the genus Chryseobacterium. Strain K105T exhibited 16S rRNA gene sequence similarity values of less than 96.9 % to the type strains of recognized Chryseobacterium species. Strain K105T differed from phylogenetically related Chryseobacterium species in several phenotypic properties. On the basis of phenotypic and phylogenetic data, strain K105T (=KCTC 12841T=JCM 14362T) is placed in the genus Chryseobacterium as the type strain of a novel species, for which the name Chryseobacterium daeguense sp. nov. is proposed.


2011 ◽  
Vol 61 (2) ◽  
pp. 433-437 ◽  
Author(s):  
Ming Liu ◽  
Yufeng Liu ◽  
Yaqiong Wang ◽  
Xuesong Luo ◽  
Junqiang Dai ◽  
...  

A yellow-pigmented bacterial strain, designated RCML-52T, was isolated from an abandoned gold mine in the desert in Xinjiang, China. Strain RCML-52T was Gram-negative, aerobic and non-motile. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain RCML-52T was affiliated with the genus Lysobacter. Strain RCML-52T exhibited <95.6 % 16S rRNA gene sequence similarity to the type strains of all species of the genus Lysobacter. The major fatty acids were iso-C16 : 0 (27.6 %), iso-C15 : 0 (19.1 %), iso-C17 : 1 ω9c (16.4 %), iso-C11 : 0 3-OH (6.5 %) and iso-C11 : 0 (5.3 %). The DNA G+C content was 69.7 mol%. The major isoprenoid quinone was Q-8. On the basis of phylogenetic, phenotypic and chemotaxonomic analysis, strain RCML-52T should be assigned to a novel species of the genus Lysobacter, for which the name Lysobacter xinjiangensis sp. nov. is proposed. The type strain is RCML-52T (=CCTCC AB 208194T =KCTC 22558T).


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