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Ying-Ying Lv, Xian-Jiao Zhang, An-Zhang Li, Wei-Ling Zou, Guang-da Feng, Hong-Hui Zhu
A Gram-stain-negative, aerobic, non-motile bacterium, designated strain 10-7W-9003T , was isolated from the forest soil of Limushan National Forest Park, south-east China (19° 10' 42″ N, 109° 44' 45″ E). Strain 10-7W-9003T showed a shape change during the course of culture from long filamentous cells (5-10×0.4-0.5 µm) at 5-36 h, to rod shaped (1.0-1.5×0.5-0.7 µm) with inoculation after 2 days. It grew optimally at 28-30 °C and pH 6.5-7.5. On the basis of 16S rRNA gene sequence analysis, it belongs to the genus Chitinophaga and is most closely related to Chitinophaga eiseniae KACC 13774T and Chitinophaga qingshengii JCM 30026T , with 16S rRNA gene sequences similarities of 98...
May 18, 2018: International Journal of Systematic and Evolutionary Microbiology
Dinali Ranmadugala, Alireza Ebrahiminezhad, Merilyn Manley-Harris, Younes Ghasemi, Aydin Berenjian
The effect of milking menaquinone-7 (MK 7) with biocompatible organic solvents on MK 7 production in B. subtilis fermentation was studied. Periodic milking of MK-7 from the fermentation medium by n-hexane significantly enhanced the total MK 7 production ~ 1.7 fold at the end of 72 hours of fermentation (p < 0.05) as compared to the control medium. Milking of MK 7 with a mixture of n-hexane phase modified with n-butanol was also explored. Although milking of MK-7 by a mixture of n-hexane and n-butanol (1:2, v/v), was found to be appropriate in terms of high extraction capacity, no significant increase in total MK-7 concentration was observed...
May 14, 2018: Current Pharmaceutical Biotechnology
Ram Hari Dahal, Jaisoo Kim
Two strains of bacteria designated strains S-53T and A27T were isolated from forest soil and subjected to polyphasic characterization. Cells were aerobic, Gram-staining-negative, catalase- and oxidase- positive, non-motile, non-spore-forming, rod-shaped, and yellow-pigmented. Flexirubin-type pigments were present. Both strains were positive for PNPG, hydrolysed casein, and tyrosine. A phylogenetic analysis based on its 16S rRNA gene sequence revealed that strains S-53T and A27T formed a lineage within the family Cytophagaceae that were distinct from various members of the genus Dyadobacter (98...
May 8, 2018: Archives of Microbiology
Arkadiusz Szterk, Katarzyna Bus, Adam Zmysłowski, Karol Ofiara
Rapid, global technological development has caused the food industry to use concentrated food component sources like dietary supplements ever more commonly as part of the human diet. This study analysed the menaquinone-7 (MK-7) content of dietary supplements in oil capsule and hard tablet forms. A novel method for separating and measuring geometric isomers of MK-7 in dietary supplements was developed and validated. Eleven different isomers of cis / trans- menaquinone-7 were identified. Identification of cis / trans isomers was performed by combination of HPLC, UPLC and HRMS-QTOF detection, whereas their quantities were determined by DAD detection...
May 1, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Pei Lin, Zheng-Fei Yan, Tae-Hoo Yi
A Gram-stain-positive, oxidase- and catalase-positive, endospore-forming, aerobic, non-motile and rod-shaped bacterium (THG-YT1T ) was isolated from green tea. Growth occurred at 10-40 °C (optimum, 25-30 °C), at pH 6-8 (optimum, 7) and at 0-2 % NaCl (optimum, 0 %). Based on 16S rRNA gene sequences, phylogenetic analyses showed that strain THG-YT1T formed a distinct lineage with respect to closely related genera in the family Bacillaceae. Strain THG-YT1T was most closely related to the genera within the families Pullulanibacillus, Scopulibacillus, Tuberibacillus and Caenibacillu, with levels of 16S rRNA gene sequence similarity to the type species of members of these genera of less than 95...
April 27, 2018: International Journal of Systematic and Evolutionary Microbiology
Bingxue Xu, Beiyu Hu, Jian Wang, Ying Lan, Yaxin Zhu, Xin Dai, Li Huang, Ying Huang, Wenbin Du
Three Gram-variable, moderately halophilic, motile, endospore-forming rods, designated P2-C2T , P3-H5T and P3-B8, were isolated from marine sediment of the Southwest Indian Ocean by using the microfluidic streak plate method. Phylogeny based on 16S rRNA gene sequences showed that strains P2-C2T and P3-H5T formed a robust cluster within the genus Virgibacillus and exhibited 16S rRNA gene similarity levels of 95.3-96.8 and 94.9-96.3 % to the type strains of Virgibacillus species, respectively. The 16S rRNA gene similarity between P2-C2T and P3-H5T was 97...
April 24, 2018: International Journal of Systematic and Evolutionary Microbiology
Chun-Gon Kim, Jong-Pyo Kang, Yue Huo, Mohan Chokkalingam, Yeon-Ju Kim, Dong-Hyun Kim, Deok-Chun Yang
A novel bacterium, designated DCY114T , was isolated from ginseng-cultivated soil in Gochang-gun, Republic of Korea. This isolate was assigned to the genus Paenibacillus and is closely related to Paenibacillus amylolyticus NRRL NRS-290T (98.3%), P. dongdonensis KUDC0114T (98.0%), P. tylopili MK2T (97.9%), P. tundrae A10bT (97.8%), and P. xylanexedens B22aT (97.5%) based on 16S rRNA gene sequence analysis. Strain DCY114T is a Gram-reaction positive, catalase and oxidase positive, facultatively aerobic rod that is motile by peritrichous flagella...
April 20, 2018: Archives of Microbiology
Hyosun Lee, Dong-Uk Kim, Suyeon Lee, Song-Gun Kim, A-Young Park, Jae-Hyung Ahn, Jong-Ok Ka
A Gram-stain negative, aerobic, non-motile, rod-shaped and yellow bacterium, designated TX0651T , was isolated from an automotive air-conditioning system. Phylogenetically, the strain groups with the members of the genus Flavisolibacter and exhibits high 16S rRNA gene sequence similarities with Flavisolibacter ginsenosidimutans Gsoil 636T (97.4%), Flavisolibacter ginsengiterrae Gsoil 492T (96.3%) and Flavisolibacter ginsengisoli Gsoil 643T (96.2%). DNA-DNA relatedness between TX0651T and F. ginsenosidimutans KCTC 22818T and F...
April 18, 2018: Antonie Van Leeuwenhoek
Feng-Qing Wang, Li-Hua Ren, Rong-Jie Zou, Yu-Zeng Sun, Xiao-Jing Liu, Fang Jiang, Li-Juan Liu
A yellow-pigmented bacterial strain (JR1T ) isolated from a sediment sample was subjected to a taxonomic study, based on phenotypic, genetic and physiological characterization. Here, we describe the cultivation and characteristics of strain JR1T , a novel member of the genus Carboxylicivirga in the family Marinilabiliaceae. Cells of strain JR1T were rod-shaped, Gram-stain-negative, non-motile and facultatively anaerobic. The temperature range for growth was 15-42 °C (optimum, 33 °C) and the pH range for growth was pH 6...
April 16, 2018: International Journal of Systematic and Evolutionary Microbiology
Harjodh Singh, Manpreet Kaur, Shivani Sharma, Lakhwinder Kaur, Sunita Mishra, Naga Radha Srinivas Tanuku, Anil Kumar Pinnaka
An aerobic, endospore-forming, haloalkali-tolerant, Gram-stain-positive, motile, rod-shaped bacterium, designated strain AK73T , was isolated from a sediment sample collected from Sambhar lake, Jaipur, Rajasthan, India. Colonies were circular, 1-2 mm in diameter, glossy, smooth, yellowish and convex with an entire margin after 48 h growth on marine agar at pH 9 and 37 °C. Growth occurred at 15-42 °C, 0-10 % (w/v) NaCl and at a pH range of 7-12. Strain AK73T was positive for catalase and arginine dihydrolase 2 activities, hydrolysis of Tweens 20, 40 and 80, and negative for esculinase, caseinase, gelatinase, β-galactosidase, lipase (Tween 60) and urease activities...
April 4, 2018: International Journal of Systematic and Evolutionary Microbiology
Jeong-Eun Ohn, Leonid N Ten, Kyeung Il Park, Byung-Oh Kim, Jeung-Sul Han, Hee-Young Jung
A Gram-stain-negative, non-motile, non-spore-forming, rodshaped, aerobic bacterial strain, designated S1-2-2-5T , was isolated from the Jeollabuk-do province, Republic of Korea, and was characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain S1-2-2-5T belonged to the family Cytophagaceae in phylum Bacteroidetes, and was most closely related to Hymenobacter terrae DG7AT (98.2%), Hymenobacter rubidus DG7BT (98.0%), Hymenobacter soli PB17T (97.7%), Hymenobacter daeguensis 16F3Y-2T (97...
April 2018: Journal of Microbiology / the Microbiological Society of Korea
G López, C Díaz-Cárdenas, J David Alzate, L N Gonzalez, N Shapiro, T Woyke, N C Kyrpides, S Restrepo, S Baena
Three morphologically similar thermo-acidophilic strains, USBA-GBX-501, USBA-GBX-502 and USBA-GBX-503T , were isolated from acidic thermal springs at the National Natural Park Los Nevados (Colombia). All isolates were spore-forming, Gram-stain-positive and motile, growing aerobically at 25-55 °C (optimum ~45 °C) and at pH 1.5-4.5 (optimum pH ~3.0). Phylogenetic analysis of the 16S rRNA gene sequences of these isolates showed an almost identical sequence (99.0 % similarity) and they formed a robust cluster with the closest relative Alicyclobacillus tolerans DSM 16297T with a sequence similarity of 99...
March 20, 2018: International Journal of Systematic and Evolutionary Microbiology
Pei Lin, Zheng-Fei Yan, Chang-Tian Li, MooChang Kook, Tae-Hoo Yi
A Gram-stain negative, aerobic, motile by flagella, rod-shaped strain (THG-T16T ) was isolated from rhizosphere of Hibiscus syriacus. Growth occurred at 10-40 °C (optimum 28-30 °C), at pH 6.0-8.0 (optimum 7.0) and at 0-1.0% NaCl (optimum 0%). Based on 16S rRNA gene sequence analysis, the near phylogenetic neighbours of strain THG-T16T were identified as Nibribacter koreensis KACC 16450T (98.6%), Rufibacter roseus KCTC 42217T (94.7%), Rufibacter immobilis CCTCC AB 2013351T (94.5%) and Rufibacter tibetensis CCTCC AB 208084T (94...
March 16, 2018: Antonie Van Leeuwenhoek
Min-Jiao Liu, Chun-Zhi Jin, Mipeshwaree Devi Asem, Yoon-Jung Ju, Dong-Jin Park, Nimaichand Salam, Min Xiao, Wen-Jun Li, Chang-Jin Kim
A Gram-stain negative, strictly aerobic and non-motile bacterium, designated strain BN130233T , was isolated from a soil sample collected from Gyeongsangbuk-do, Republic of Korea. Colonies were orange in colour, with wet and smooth surfaces. Phylogenetic analyses based on the 16S rRNA gene sequences resulted in strain BN130233T forming a cluster with members of the family Chitinophagaceae Kämpfer et al. 2011, while sharing the highest sequence identity of 91.2 % with Chitinophaga niastensis JS16-4T . Good growth was observed at 20-28 °C, pH 7...
May 2018: International Journal of Systematic and Evolutionary Microbiology
Nicolas Danylec, Andrea Göbl, Dominic A Stoll, Birgit Hetzer, Sabine E Kulling, Melanie Huch
Two novel, anaerobic, Gram-positive, rod-shaped bacterial strains, ResAG-85T and ResAG-96T , were isolated from a faecal sample of a male human. 16S rRNA gene sequences analyses indicated that these strains represent a distinct lineage within the family Eggerthellaceae. Strain ResAG-85T showed 92.3 % similarity to the type strains of the genera Eggerthella and Gordonibacter. Strain ResAG-96T clustered together with Paraeggerthella hongkongensis and the newly (but not validly) published genus 'Arabia massiliensis' (94...
May 2018: International Journal of Systematic and Evolutionary Microbiology
Shih-Yi Sheu, Tsai-Ying Hsieh, Soon-Wo Kwon, Wen-Ming Chen
A bright-red bacterial strain, TAPP3T , was isolated from a freshwater sample taken from the Wanan Creek in Taiwan. Phylogenetic analyses based on 16S rRNA gene sequences revealed that TAPP3T represented a member of the genus Hymenobacter and showed the highest levels of sequence similarity to Hymenobacter ginsengisoli DCY57T (97.0 %) and Hymenobacter marinus KJ035T (96.5 %) and less than 96.2 % with other members of the genus. Cells of TAPP3T were Gram-stain-negative, aerobic, motile by gliding, rods that were surrounded by a thick capsule...
April 2018: International Journal of Systematic and Evolutionary Microbiology
Subhash Yadav, Radha Vaddavalli, Srinivas Siripuram, Ramaprasad Veera Venkata Eedara, Shivani Yadav, Ojha Rabishankar, Tushar Lodha, Sasikala Chintalapati, VenkataRamana Chintalapati
An antibiotic producing novel Planctomycete strain, designated JC280T , was isolated from the surface of the plant Hydrilla verticillata collected from an alkaline lake (Buffalo lake), University of Hyderabad, Hyderabad, India. The morphological and chemotaxonomic properties of strain JC280T were in agreement with the characteristics of the genus Planctopirus. The cell shape was spherical to ovoid and some were tear drop shaped. The cells were Gram-stain-negative divided by budding presenting stalks and rosette formation and were non-sporulating...
February 21, 2018: Journal of Antibiotics
Euon Jung Tak, Hyun Sik Kim, June-Young Lee, Woorim Kang, Hojun Sung, Pil Soo Kim, Dong-Wook Hyun, Na-Ri Shin, Jeong Rae Roh, Sun Duk Park, Hyung Eun Shim, Jin-Woo Bae
A rod-shaped, Gram-stain-positive, motile and aerobic bacterium, designated LM2416T , was isolated from faeces of Lophuras winhoii living in Seoul Grand Park, Gyeonggi-do, Republic of Korea. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain LM2416T belonged to the genus Virgibacillus, sharing high 16S rRNA gene sequence similarities to Virgibacillus necropolis LMG 19488T (99.0 %), Virgibacillus carmonensis LMG 20964T (98.4 %), Virgibacillus arcticus Hal 1T (98.3 %) and Virgibacillus flavescens S1-20T (97...
April 2018: International Journal of Systematic and Evolutionary Microbiology
Fauziah F Rochman, Joong-Jae Kim, W Irene C Rijpstra, Jaap S Sinninghe Damsté, Peter Schumann, Tobin J Verbeke, Peter F Dunfield
A novel member of the phylum Verrucomicrobia was isolated from an oilsands tailings pond in Alberta, Canada. Cells of isolate NVTT are Gram-negative, strictly aerobic, non-pigmented, non-motile cocci to diplococci 0.5-1.0 µm in diameter. The bacterium is neutrophilic (optimum pH 6.0-8.0) but alkalitolerant, capable of growth between pH 5.5 and 11.0. The temperature range for growth is 15-40 °C (optimum 25-37 °C). Carbon and energy sources include sugars and organic acids. Nitrogen sources include nitrate, urea, l-glycine, l-alanine, l-proline and l-serine...
February 20, 2018: International Journal of Systematic and Evolutionary Microbiology
Kikue Hirota, Masatoshi Nishita, Zhihao Tu, Hidetoshi Matsuyama, Isao Yumoto
The indigo-reducing, facultatively anaerobic and obligately alkaliphilic strains Bf-1T , Bf-2 and Bf-4 were isolated from an indigo fermentation liquor used for dyeing, which uses sukumo [composted Polygonum indigo (Polygonum tinctorium Lour.) leaves] as a basic ingredient and was obtained from a craft centre in Date City, Hokkaido, Japan. The 16S rRNA gene sequence analyses indicated that the closest neighbours of strain Bf-1T are Bacillus maritimus DSM 100413T (98.3 % 16S rRNA gene sequence similarity), Bacillus persicus DSM 25386T (98...
April 2018: International Journal of Systematic and Evolutionary Microbiology
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