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Lingping Zhuang, Binbin Lin, Fei Qin, Lianzhong Luo
A taxonomic study was carried out on strain HN-Y44T , which was isolated from sponge collected from Yangpu Bay, Hainan, China. Cells of strain HN-Y44T were Gram-stain-negative, non-motile, rod-shaped, yellow-pigmented and grew at 10-40 °C (optimum, 28 °C), at pH 6-10 (optimum, 7-8) and in 0-8 % (w/v) NaCl (optimum, 2-5 %). This isolate was positive for nitrate reduction, denitrification, oxidase, catalase and aesculin hydrolysis, but negative for indole production and urease. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain HN-Y44T belongs to the genus Zhouia and is clearly distinct from the other described species of this genus, Zhouia amylolytica, with a 16S rRNA gene sequence similarity of 96...
May 21, 2018: International Journal of Systematic and Evolutionary Microbiology
Liying Jin, Junwei Zhao, Shanwen Jiang, Yang Zhao, Xiaoyang Han, Xiaowei Guo, Xiangjing Wang, Wensheng Xiang
Two Gram-stain positive, aerobic actinomycete strains, designated NEAU-JGR1T and NEAU-JGC41, were isolated from soil collected from Fairy Lake Botanical Garden in Shenzhen, Guangdong Province, south of China. The 16S rRNA gene sequences analysis showed that the two strains exhibited 99.5% 16S rRNA gene sequence similarity with each other and were closely related to Promicromonospora thailandica JCM 17130T (99.4, 99.3%) and Promicromonospora citrea DSM 43110T (99.2, 99.2%). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that the two strains clustered together and formed a cluster with P...
May 19, 2018: Antonie Van Leeuwenhoek
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
Decai Jin, Xiao Kong, Jie Wang, Jiajun Sun, Xiangyang Yu, Xuliang Zhuang, Ye Deng, Zhihui Bai
A novel Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, strictly aerobic bacterium, designated strain 13T , was isolated from an activated sludge wastewater treatment plant in Beijing, China. 16S rRNA gene sequence analysis placed this organism within the genus Chitinophaga of the class Bacteroidetes, with Chitinophaga skermanii CC-SG1B (92.4 % gene sequence similarity) and Chitinophaga rupis CS5-B1 (91.2 %) as its closest relatives. This isolate contained meso-diaminopimelic acid as the diagnostic diamino acid and the whole-cell hydrolysate was ribose...
May 11, 2018: International Journal of Systematic and Evolutionary Microbiology
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
Xi Chen, Wei-Bin Shen, Penghua Yang, Daoyin Dong, Winny Sun, Peixin Yang
Maternal diabetes induces neural tube defects by suppressing neurogenesis in the developing neuroepithelium. Our recent study further revealed that high glucose inhibited embryonic stem cell differentiation into neural lineage cells. However, the mechanism whereby high glucose suppresses neural differentiation is unclear. To investigate whether high glucose-induced oxidative stress and endoplasmic reticulum stress (ER stress) lead to the inhibition of neural differentiation, the effect of high glucose on neural stem cell (the C17...
April 26, 2018: Stem Cells and Development
Zheng-Fei Yan, Pei Lin, Chang-Tian Li, MooChang Kook, Tae-Hoo Yi
A Gram-stain-positive, aerobic, motile, rod- or cocci-shaped bacterium with flagella bacterium (THG-T63T ) was isolated from freshwater mud. Growth occurred at 10-40 °C (optimum, 28-35 °C), at pH 6-8 (optimum, 7) and at 0-6 % NaCl (optimum, 2 %). Based on 16S rRNA sequence analysis, the nearest phylogenetic neighbours of strain THG-T63T were identified as Nocardioides panacisoli KCTC 19470T (97.5 %), Nocardioides caeni KCTC 19600T (96.4 %), Nocardioides humi KCTC 19265T (96.3 %), Nocardioides kongjuensis KCTC 19054T (96...
April 23, 2018: International Journal of Systematic and Evolutionary Microbiology
Jinichi Aoki, Toru Kawamata, Asuka Kodaka, Masayuki Minakawa, Nobukazu Imamura, Mikio Tsuzuki, Munehiko Asayama
Biomass yields and biofuel production were examined in a dual (solid and liquid)-phase cultivation system (DuPHA) with the unique filamentous cyanobacteria, Pseudanabaena sp. ABRG 5-3 and Limnothrix sp. SK1-2-1. Continuous circular cultivation was driven under the indoor closed (IC) or indoor opened (IO) conditions and provided biomass yields of approximately 8 to 27 g dry cell weight (DCW) floor m-2 d-1 . Alkanes of heptadecane (C17 H36 ) or pentadecane (C15 H32 ) as liquid biofuels were also recovered from the lower liquid-phase, in which cyanobacteria were dropped from the upper solid-phase and continuously cultivated with a small amount of medium...
April 17, 2018: Journal of Biotechnology
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
Ram Hari Dahal, Jaisoo Kim
A novel bacterium, designated strain CA-1T , was isolated from forest soil in Kyonggi University. Cells were strictly aerobic, Gram-stain-negative, catalase-positive, oxidase-negative, non-motile, non-spore-forming, rod-shaped and red-orange-pigmented. Strain CA-1T hydrolysed casein and DNA. It was able to grow at 15-37 °C, pH 5.5-9.0 and at 0-2 % (w/v) NaCl concentration. Flexirubin-type pigments were present. Phylogenetic analysis based on its 16S rRNA gene sequence indicated that strain CA-1T formed a lineage within the family Crocinitomicaceae of the phylum Bacteroidetes that was distinct from Fluviicola hefeinensis MYL-8T (96...
April 12, 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
Ananta N Panda, Samir Ranjan Mishra, Lopamudra Ray, Surajit Das, Gurdeep Rastogi, Ajit Kumar Pattanaik, Tapan Kumar Adhya, Mrutyunjay Suar, Vishakha Raina
moderately halophilic spore forming, motile, Gram-positive, rod-shaped bacterial strain designated as KGW1T was isolated from water sample of Chilika Lake and characterized taxonomically using polyphasic approach. The strain grew in the presence of 0-25% (w/v) NaCl in marine salt agar media, hydrolyzes casein, and gelatin and shows presence of alkaline proteases. The major cell wall menaquinone was MK7 and major cellular fatty acids were anteiso-C15:0 (44.89%), anteiso-C17:0 (6.18%), isoC15:0 (19.38%), and iso-C16:0 (7...
April 2018: Journal of Microbiology / the Microbiological Society of Korea
Elizabeth Valdivieso, Fabiola Mejías, Carlos Torrealba, Gustavo Benaim, Vladimir V Kouznetsov, Felipe Sojo, Fernando A Rojas-Ruiz, Francisco Arvelo, Francehuli Dagger
The present study evaluates in vitro the effect of two synthetic compounds of the 7-chloro-4-aryloxyquinoline series, QI (C17 H12 ClNO3 ) and QII (C18 H15 ClN4 O2 S), on Leishmania donovani parasites. The results obtained demonstrate that these compounds are able to inhibit the proliferation of L. donovani promastigotes in a dose-dependent way (QI IC50  = 13.03 ± 3.4 and QII IC50  = 7.90 ± 0.6 μM). Likewise, these compounds significantly reduced the percentage of macrophage infection by amastigotesand the number of amastigotes within macrophage phagolysosomes, the clinical relevant phase of these parasites...
March 28, 2018: Acta Tropica
Nan-Nan Wang, Chang-Ming Li, Ying-Xiu Li, Zong-Jun Du
An orange-coloured, slender rod-shaped, gliding bacterium, designated NS08T , was isolated from coastal water of Xiaoshi Island, Weihai, China (37° 31' 36'' N 122° 00' 58'' E). Cells were Gram-stain-negative, non-spore-forming, non-flagellated, aerobic, catalase-positive and oxidase-negative. Growth occurred at 10-37 °C (optimum 30 °C), in the presence of 1.0-5.0 % (w/v) NaCl (optimum 2.0-3.0 %) and at pH 6.5-9.0 (optimum pH 7.0-7.5). Carotenoid pigments were produced but flexirubin-type pigments were not...
March 26, 2018: International Journal of Systematic and Evolutionary Microbiology
Shao-Yang Hou, Fang Wang, Meng-Yue Zhang, Juan Cheng, Yi-Xuan Zhang
A novel yellow pigmented, Gram-positive, aerobic and heavy metal biosorptive bacterium designated SYP-B2667T was isolated from rhizosphere soil of Epilobium hirsutum L. in Tongren, Guizhou province, China. Based on 16S rRNA gene sequence analyses, it was shown that strain SYP-B2667T represents a novel species in the genus Leucobacter, with Leucobacter chromiireducens subsp. solipictus JCM 15573T as a close phylogenetic neighbour (sequence similarity of 98.2%). Chemotaxonomic characteristics also supported the affiliation to the genus Leucobacter...
March 22, 2018: Antonie Van Leeuwenhoek
Hojun Sung, Hyun Sik Kim, June-Young Lee, Woorim Kang, Pil Soo Kim, Dong-Wook Hyun, Euon Jung Tak, Mi-Ja Jung, Ji-Hyun Yun, Min-Soo Kim, Na-Ri Shin, Tae Woong Whon, Jeong Rae Rho, Sun Duk Park, Hyung Eun Shim, Jin-Woo Bae
A Gram-stain-positive, facultatively aerobic, spore-forming, oxidase-positive, catalase- and DNase-negative, rod-shaped and motile bacterial strain, AR23208T , was isolated from the gut of a cinereous vulture (Aegypius monachus), collected at Seoul Grand Park Zoo (Republic of Korea). Strain AR23208T grew optimally at 25-30 °C, at pH 7 and in the absence of NaCl. Phylogenetic analysis revealed that strain AR23208T shared 98.2 and 97.1 % 16S rRNA gene sequence similarity with Tumebacillus algifaecis THMBR28T and Tumebacilluslipolyticus NIO-S10T , respectively...
March 21, 2018: International Journal of Systematic and Evolutionary Microbiology
Chitti Thawai
A novel actinomycete, designated strain DH51B-4-3T , which formed long chains of spherical spores borne on the tip of sporophores arising from the aerial mycelium, was isolated from rice rhizosphere soil. The isolate contained meso-diaminopimelic acid in the cell-wall peptidoglycan. The whole-cell sugars of strain DH51B-4-3T were arabinose, galactose, glucose, rhamnose and ribose. The phospholipids in the cell membrane were phosphatidylethanolamine, phosphatidyl methylethanolamine, diphosphatidylglycerol and phosphatidylinositol...
May 2018: International Journal of Systematic and Evolutionary Microbiology
Peter Schumann, De-Chao Zhang, Luís França, Rosa Margesin
A Gram-stain-positive, flagellated, catalase- and cytochrome c oxidase-positive bacterial strain, designated S20-100T , was isolated from alpine forest soil. Growth occurred at a temperature range of 0-30 °C, at pH 6-9 and in the presence of 0-1 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain S20-100T was related to the genus Marmoricola and had the highest 16S rRNA gene sequence similarity to Marmoricola ginsengisoli Gsoil 097T (98.4 %) and Marmoricola solisilvae KIS18-7T (98...
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
Javier Pascual, Bärbel U Foesel, Alicia Geppert, Katharina J Huber, Christian Boedeker, Manja Luckner, Gerhard Wanner, Jörg Overmann
A novel slow-growing bacterium, designated strain AW1220T , was isolated from agricultural floodplain soil sampled at Mashare (Kavango region, Namibia) by using a high-throughput cultivation approach. Strain AW1220T was characterized as a Gram-negative, non-motile, rod-shaped bacterium. Occasionally, some cells attained an unusual length of up to 35 µm. The strain showed positive responses for catalase and cytochrome-c oxidase and divided by binary fission and/or budding. The strain had an aerobic chemoorganoheterotrophic metabolism and was also able to grow under micro-oxic conditions...
April 2018: International Journal of Systematic and Evolutionary Microbiology
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