scholarly journals Bacillus seohaeanensis sp. nov., a halotolerant bacterium that contains l-lysine in its cell wall

2006 ◽  
Vol 56 (8) ◽  
pp. 1893-1898 ◽  
Author(s):  
Jae-Chan Lee ◽  
Jee-Min Lim ◽  
Dong-Jin Park ◽  
Che Ok Jeon ◽  
Wen-Jun Li ◽  
...  

A halotolerant, round-endospore-forming, aerobic, Gram-positive bacterium, designated BH724T, was isolated from a solar saltern at Taean in Korea. Cells of this strain were rod-shaped and found to be non-motile. Strain BH724T grew at salinities of 0–10 % (w/v) NaCl with an optimum of 3 % (w/v) NaCl and at temperatures of 15–50 °C with an optimum of 40 °C. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain BH724T belonged to the genus Bacillus and that Bacillus aquimaris TF-12T, Bacillus marisflavi TF-11T and Bacillus vietnamensis JCM 11124T were its closest neighbours, sharing 97.3, 97.2 and 97.0 % 16S rRNA gene sequence similarity, respectively. The genomic DNA G+C content was 39 mol% and the predominant menaquinone was MK-7. Its major cellular fatty acids were anteiso-C15 : 0, iso-C15 : 0, iso-C16 : 0 and iso-C14 : 0. The peptidoglycan type was A1α, linked directly through l-lysine. On the basis of morphological, chemotaxonomic, physiological and phylogenetic properties, strain BH724T represents a novel species of the genus Bacillus, for which the name Bacillus seohaeanensis sp. nov. is proposed. The type strain is BH724T (=KCTC 3913T=DSM 16464T).

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).


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).


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. 2908-2912 ◽  
Author(s):  
Young-Ok Kim ◽  
Hee Jeong Kong ◽  
Sooyeon Park ◽  
So-Jung Kang ◽  
Kyung-Kil Kim ◽  
...  

A Gram-stain-negative, non-motile, non-spore-forming and short rod- or rod-shaped bacterial strain, designated 22-5T, was isolated from a bluespotted cornetfish, Fistularia commersonii, and subjected to taxonomic study. Strain 22-5T grew optimally at 30 °C and in the presence of 2–5 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain 22-5T belonged to the genus Paracoccus and joined the cluster comprising Paracoccus homiensis DD-R11T and Paracoccus zeaxanthinifaciens ATCC 21588T, with which strain 22-5T exhibited 97.4 and 96.9 % 16S rRNA gene sequence similarity, respectively. Strain 22-5T exhibited 94.0–96.6 % 16S rRNA gene sequence similarity with the other type strains of species of the genus Paracoccus. Strain 22-5T contained Q-10 as the predominant menaquinone and C18 : 1 ω7c as the predominant fatty acid. In this study, P. zeaxanthinifaciens KCTC 22688T also contained Q-10 as the predominant isoprenoid quinone. The DNA G+C content of strain 22-5T was 63.6 mol%. Strain 22-5T exhibited 44 and 32 % DNA–DNA relatedness to P. homiensis KACC 11518T and P. zeaxanthinifaciens KCTC 22688T, respectively. On the basis of phenotypic, phylogenetic and genetic data, strain 22-5T is considered to represent a novel species of the genus Paracoccus, for which the name Paracoccus fistulariae sp. nov. is proposed. The type strain is 22-5T (=KCTC 22803T =CCUG 58401T).


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).


2004 ◽  
Vol 54 (5) ◽  
pp. 1465-1468 ◽  
Author(s):  
Hyunyoung Jeong ◽  
Hana Yi ◽  
Yuji Sekiguchi ◽  
Mizuho Muramatsu ◽  
Yoichi Kamagata ◽  
...  

A strictly anaerobic, mesophilic, endospore-forming bacterium, designated strain HY-35-12T, was isolated from a soil sample in Jeju, Korea. Cells of this isolate were Gram-positive, motile rods that formed oval to spherical terminal spores. Strain HY-35-12T grew optimally at 30 °C, pH 7·0 and 0–0·5 % (w/v) NaCl. The isolate produced pyruvate, lactate, acetate, formate and hydrogen as fermentation end products from glucose. The G+C content of DNA of the isolate was 41 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the organism formed a monophyletic clade with Clostridium xylanovorans and Clostridium aminovalericum in cluster XIVa of the genus Clostridium. The closest phylogenetic neighbour was C. xylanovorans, with 96·65 % 16S rRNA gene sequence similarity. Several physiological and chemotaxonomic properties were identified that enable strain HY-35-12T to be distinguished from phylogenetically related clostridia. On the basis of polyphasic characteristics, it is proposed that strain HY-35-12T (=IMSNU 40003T=KCTC 5026T=DSM 15929T) represents a novel species, Clostridium jejuense sp. nov.


2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 618-623 ◽  
Author(s):  
Nidhi Garg ◽  
Kiran Bala ◽  
Rup Lal

A yellow-pigmented, hexachlorocyclohexane (HCH)-degrading bacterium, designated F2T, was isolated from an HCH dumpsite at Ummari village in Lucknow, India. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate belonged to the genus Sphingobium. Its closest neighbour was Sphingobium japonicum UT26T (99.2 % 16S rRNA gene sequence similarity). The DNA G+C content was 65.7 mol%. The polyamine profile showed the presence of spermidine. The respiratory pigment was ubiquinone Q-10. The predominant cellular fatty acids were C16 : 0 (12.5 %), C14 : 0 2-OH (8.1 %), summed feature 3 (consisting of C16 : 1ω7c and/or C16 : 1ω6c; 5.8 %) and summed feature 8 (consisting of C18 : 1ω7c and/or C18 : 1ω6c; 53.1 %). The major polar lipids of strain F2T were phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and sphingoglycolipid. DNA–DNA relatedness and biochemical and physiological characters clearly distinguished the isolate from its closest phylogenetic neighbours. Thus, strain F2T represents a novel species of the genus Sphingobium, for which the name Sphingobium lucknowense sp. nov. is proposed. The type strain is strain F2T ( = MTCC 9456T  = CCM 7544T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1549-1553 ◽  
Author(s):  
So-Jung Kang ◽  
Yong-Taek Jung ◽  
Ki-Hoon Oh ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, non-spore-forming bacterial strain, BDR-9T, was isolated from soil collected from Boryung on the west coast of the Korean peninsula, and its taxonomic position was investigated by using a polyphasic study. Strain BDR-9T grew optimally at 25 °C, at pH 6.0–7.5 and in the absence of NaCl. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain BDR-9T fell within the clade comprising species of the genus Mucilaginibacter within the phylum Bacteroidetes. 16S rRNA gene sequence similarity values between strain BDR-9T and the type strains of species of the genus Mucilaginibacter were in the range 94.0–95.6 %. Strain BDR-9T contained MK-7 as the predominant menaquinone and iso-C15 : 0 and C16 : 1ω7c and/or iso-C15 : 0 2-OH as the major fatty acids. The DNA G+C content was 44.3 mol%. Differential phenotypic properties and phylogenetic distinctiveness of strain BDR-9T demonstrated that this strain is distinguishable from species of the genus Mucilaginibacter. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain BDR-9T is considered to represent a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter boryungensis sp. nov. is proposed. The type strain is BDR-9T ( = KCTC 23157T  = CCUG 59599T).


2010 ◽  
Vol 60 (12) ◽  
pp. 2705-2709 ◽  
Author(s):  
Shih-Yi Sheu ◽  
Nian-Tsz Cho ◽  
A. B. Arun ◽  
Wen-Ming Chen

A yellow-pigmented bacterial strain, designated RIB1-6T, was isolated from a freshwater spring in Taiwan. Strain RIB1-6T was aerobic, Gram-negative, rod-shaped, non-motile and non-spore-forming. Growth occurred at 10–37 °C, at pH 7–8 and with 0–1 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain RIB1-6T belonged to the genus Terrimonas and its two closest neighbours were Terrimonas ferruginea ATCC 13524T and Terrimonas lutea DYT (16S rRNA gene sequence similarity 97.4 % and 93.5 %, respectively). Strain RIB1-6T contained iso-C15 : 0 (33.4 %), iso-C17 : 0 3-OH (18.2 %), summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1 ω7c; 14.7 %) and iso-C15 : 1 (11.5 %) as the predominant fatty acids. The major isoprenoid quinone was MK-7. The DNA G+C content of strain RIB1-6T was 47.3 mol%. On the basis of the genotypic and phenotypic data, strain RIB1-6T represents a novel species in the genus Terrimonas, for which the name Terrimonas aquatica sp. nov. is proposed. The type strain is RIB1-6T (=BCRC 17941T=LMG 24825T).


Author(s):  
Byung-Chun Kim ◽  
Haryoung Poo ◽  
Kang Hyun Lee ◽  
Mi Na Kim ◽  
O-Yu Kwon ◽  
...  

A Gram-negative-staining, non-motile rod, designated GG-w14T, was isolated from the rhizosphere of Angelica polymorpha Maxim. Phylogenetic analysis of 16S rRNA gene sequences revealed that the isolate belonged to the genus Mucilaginibacter and exhibited 93.9–97.4 % 16S rRNA gene sequence similarity with recognized members of the genus Mucilaginibacter (closest relative Mucilaginibacter gossypii Gh-67T). DNA–DNA relatedness between strain GG-w14T and M. gossypii KCTC 22380T was <41 %. Strain GG-w14T grew at 4–35 °C, at pH 5.0–8.0 and with 0–1 % (w/v) NaCl. The isolate hydrolysed casein, CM-cellulose and starch and contained menaquinone 7 as the major menaquinone. The major cellular fatty acids were summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH; 39.9 %), iso-C15 : 0 (24.2 %) and iso-C17 : 0 3-OH (12.4 %). The DNA G+C content was 42.5 mol%. These data suggest that strain GG-w14T should be considered as a representative of a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter angelicae sp. nov. is proposed. The type strain is GG-w14T ( = KCTC 23250T = NCAIM B 02415T).


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