journal
MENU ▼
Read by QxMD icon Read
search

Journal of Microbiology / the Microbiological Society of Korea

journal
https://www.readbyqxmd.com/read/28779339/spirosoma-metallicus-sp-nov-isolated-from-an-automobile-air-conditioning-system
#1
Hyosun Lee, Dong-Uk Kim, Suyeon Lee, Sooyeon Park, Jung-Hoon Yoon, So Yoon Park, Jong-Ok Ka
A Gram-stain-negative and orangish yellow-pigmented bacterial strain, designated PR1014K(T), was isolated from an automobile evaporator core collected in Korea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain PR1014K(T) was related with the members of the genus Spirosoma (94.7-90.2%) and closely related with Spirosoma lacussanchae CPCC 100624(T) (94.7%), Spirosoma knui 15J8-12(T) (94.3%), and Spirosoma soli MIMBbqt12(T) (93.3%). The strain grew at 15-40°C (optimum, 25°C), pH 6...
August 5, 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28779338/potential-of-2-2-dipyridyl-diselane-as-an-adjunct-to-antibiotics-to-manage-cadmium-induced-antibiotic-resistance-in-salmonella-enterica-serovar-typhi-ty2-strain
#2
Praveen Rishi, Reena Thakur, Ujjwal Jit Kaur, Harjit Singh, Kuldip K Bhasin
One of the reasons for increased antibiotic resistance in Salmonella enterica serovar Typhi Ty2 is the influx of heavy metal ions in the sewage, from where the infection is transmitted. Therefore, curbing these selective agents could be one of the strategies to manage the emergence of multidrug resistance in the pathogen. As observed in our earlier study, the present study also confirmed the links between cadmium accumulation and antibiotic resistance in Salmonella. Therefore, the potential of a chemically-synthesised compound 2, 2'-dipyridyl diselane (DPDS) was explored to combat the metal-induced antibiotic resistance...
August 5, 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28752297/uliginosibacterium-flavum-sp-nov-isolated-from-an-artificial-lake
#3
Ji Young Kang, Jeesun Chun, Kwang Yeop Jahng
A Gram-negative, facultative anaerobic, rod-shaped, motile by means of a polar flagellum, greenish-yellow-pigmented bacterial strain (designated strain JJ3220(T)) was isolated from an artificial lake in South Korea and characterized using a polyphasic approach. The 16S rRNA gene sequence of strain JJ3220(T) indicated that the isolate belongs to the family Rhodocyclaceae, and that it exhibits 96.4% similarity to Uliginosibacterium paludis KBP-13(T). The major cellular fatty acids of the novel strain were C14:0, C16:0, and summed feature 3 (C16:1 ω6c and/or C16:1 ω7c)...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28752296/pseudaminobacter-granuli-sp-nov-isolated-from-granules-used-in-a-wastewater-treatment-plant
#4
Young Ki Hahn, Minseok S Kim, Wan-Taek Im
A Gram negative, aerobic, non-motile and rod-shaped bacterial strain designated as Gr-2(T) was isolated from granules used in a wastewater treatment plant in Korea, and its taxonomic position was investigated using a polyphasic approach. Strain Gr-2(T) grew at 18-37°C (optimum temperature, 30°C) and a pH of 6.0-8.0 (optimum pH, 7.0) on R2A agar medium. Based on 16S rRNA gene phylogeny, the novel strain showed a new branch within the genus Pseudaminobacter of the family Phyllobacteriaceae, and formed clusters with Pseudaminobacter defluvii THI 051(T) (98...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28752295/nmr-based-metabolomics-reveals-the-metabolite-profiles-of-vibrio-parahaemolyticus-under-ferric-iron-stimulation
#5
Jun Zhou, Chenyang Lu, Dijun Zhang, Chennv Ma, Xiurong Su
Vibrio parahaemolyticus is a halophilic bacterium endemic to coastal areas, and its pathogenicity has caused widespread seafood poisoning. In our previous research, the protein expression of V. parahaemolyticus in Fe(3+) medium was determined using isobaric tags for relative and absolute quantitation (iTRAQ). Here, nuclear magnetic resonance (NMR) was used to detect changes in the V. parahaemolyticus metabolome. NMR spectra were obtained using methanol-water extracts of intracellular metabolites from V. parahaemolyticus under various culture conditions, and 62 metabolites were identified, including serine, arginine, alanine, ornithine, tryptophan, glutamine, malate, NAD(+), NADP(+), oxypurinol, xanthosine, dCTP, uracil, thymine, hypoxanthine, and betaine...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28752294/characterization-and-phylogenetic-analysis-of-varicella-zoster-virus-strains-isolated-from-korean-patients
#6
Min Ho Kim, Jeong Seon Jeon, In Kyo Kim, Ji Seon Park, Hosun Park, Ok Sarah Shin, Chan Hee Lee
Varicella-zoster virus (VZV) is a causative agent of chickenpox in primary infection and shingles after its reactivation from latency. Complete or almost-complete genomic DNA sequences for various VZV strains have been reported. Recently, clinical VZV strains were isolated from Korean patients whose genome was sequenced using high-throughput sequencing technology. In this study, we analyzed single nucleotide polymorphism (SNP) of VZV strains to genetically characterize Korean clinical isolates. Phylogenetic analyses revealed that three Korean strains, YC01, YC02, and YC03, were linked to clade 2...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28752293/development-of-recombinant-yarrowia-lipolytica-producing-virus-like-particles-of-a-fish-nervous-necrosis-virus
#7
Van-Trinh Luu, Hye Yun Moon, Jee Youn Hwang, Bo-Kyu Kang, Hyun Ah Kang
Nervous necrosis virus (NNV) causes viral encephalopathy and retinopathy, a devastating disease of many species of cultured marine fish worldwide. In this study, we used the dimorphic non-pathogenic yeast Yarrowia lipolytica as a host to express the capsid protein of red-spotted grouper nervous necrosis virus (RGNNV-CP) and evaluated its potential as a platform for vaccine production. An initial attempt was made to express the codon-optimized synthetic genes encoding intact and N-terminal truncated forms of RGNNV-CP under the strong constitutive TEF1 promoter using autonomously replicating sequence (ARS)-based vectors...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28752292/effect-of-amikacin-on-cell-wall-glycopeptidolipid-synthesis-in-mycobacterium-abscessus
#8
So-Young Lee, Hee-Youn Kim, Byoung-Jun Kim, Hong Kim, Seung-Hyeok Seok, Bum-Joon Kim, Yoon-Hoh Kook
Cultivation of the smooth colony Mycobacterium abscessus at the sub-minimum inhibitory concentration (MIC) of amikacin changed its growth pattern including its colony morphology (smooth to rough) and cell arrangement (dispersed to cord formation). In addition, reduced sliding motility and biofilm formation were observed. The amount of glycogpetidolipid (GPL) and mRNA expression of key genes involved in GPL synthesis were decreased in the amikacin-treated M. abscessus strain. An in vitro infection assay revealed that the amikacin-treated smooth M...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28752291/composition-and-abundance-of-microbiota-in-the-pharynx-in-patients-with-laryngeal-carcinoma-and-vocal-cord-polyps
#9
Hongli Gong, Boyan Wang, Yi Shi, Yong Shi, Xiyan Xiao, Pengyu Cao, Lei Tao, Yuezhu Wang, Liang Zhou
The pharynx is an important site of microbiota colonization, but the bacterial populations at this site have been relatively unexplored by culture-independent approaches. The aim of this study was to characterize the microbiota structure of the pharynx. Pyrosequencing of 16S rRNA gene libraries was used to characterize the pharyngeal microbiota using swab samples from 68 subjects with laryngeal cancer and 28 subjects with vocal cord polyps. Overall, the major phylum was Firmicutes, with Streptococcus as the predominant genus in the pharyngeal communities...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28721477/imipenem-resistant-gram-negative-bacterial-isolates-carried-by-persons-upon-medical-examination-in-korea
#10
So Yeon Kim, Sang Yop Shin, Ji-Young Rhee, Kwan Soo Ko
Carbapenem-resistant Gram-negative bacteria (CR-GNB) have emerged and disseminated worldwide, become a great concern worldwide including Korea. The prevalence of fecal carriage of imipenem-resistant Gram-negative bacteria (IR-GNB) in persons in Korea was investigated. Stool samples were collected from 300 persons upon medical examination. Samples were screened for IR-GNB by using MacConkey agar with 2 μl/ml imipenem. Species were identified by 16S rRNA gene sequence analysis, and antimicrobial susceptibility was determined by the broth microdilution method...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28674972/genetic-variation-and-phylogenetic-relationships-of-the-ectomycorrhizal-floccularia-luteovirens-on-the-qinghai-tibet-plateau
#11
Rui Xing, Qing-Bo Gao, Fa-Qi Zhang, Peng-Cheng Fu, Jiu-Li Wang, Hui-Ying Yan, Shi-Long Chen
Floccularia luteovirens, as an ectomycorrhizal fungus, is widely distributed in the Qinghai-Tibet Plateau. As an edible fungus, it is famous for its unique flavor. Former studies mainly focus on the chemical composition and genetic structure of this species. However, the phylogenetic relationship between genotypes remains unknown. In this study, the genetic variation and phylogenetic relationship between the genotypes of F. luteovirens in Qinghai-Tibet Plateau was estimated through the analysis on two protein-coding genes (rpb1 and ef-1α) from 398 individuals collected from 24 wild populations...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28674971/a-rapid-and-simple-method-for-identifying-bacterial-polar-lipid-components-in-wet-biomass
#12
Tuan Manh Nguyen, Jaisoo Kim
There are marked differences between wet and freeze-dried cells with regard to the identification of polar lipid components. The determination of the polar lipid composition of freeze-dried cells is well established. However, several approaches to identifying polar lipid components in wet cells have met with limited success owing to the presence of non-polar compounds in the extracts, resulting in a lipid composition with a narrow scope. In this study, we surveyed the lipid profiles of the wet biomasses of three Gram-positive (Microbacterium lacticum, Rhodococcus koreensis, and Streptomyces longwoodensis) and two Gram-negative (Pseudomonas aeruginosa and Novosphingobium capsulatum) bacteria; the results were comparable in quality to those obtained using a standard freeze-dried approach...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28674970/morphologies-and-phenotypes-in-bacillus-subtilis-biofilms
#13
Xiaoling Wang, Shuo Meng, Jingshi Han
In this study, we explored Bacillus subtilis biofilm growth under various conditions such as the use of substrates with different stiffnesses and nutrient levels using a well-developed optical imaging technique to spatially and temporally track biofilm growth. We also developed a quantitative method to characterize B. subtilis biofilm morphologies under various growth conditions. To determine biofilm rim irregularities, we used the dimensionless P2A ratio, defined as P(2)/4πA, where P is the perimeter and A is the area of the biofilm...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28664522/comment-on-primary-lymphocyte-infection-models-for-kshv-and-its-putative-tumorigenesis-mechanisms-in-b-cell-lymphomas-journal-of-microbiology-2017-55-5-319-329
#14
LETTER
Giovanna Rappocciolo, Frank Jenkins, Charles R Rinaldo
No abstract text is available yet for this article.
July 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28664521/ensifer-collicola-sp-nov-a-bacterium-isolated-from-soil-in-south-korea
#15
Jun Hyeong Jang, Dongwook Lee, Seho Cha, Taegun Seo
Strain Mol12(T), which presented in the form of Gram-negative, motile, non-spore forming rod-shaped, was isolated from soil in South Korea and characterized to determine its taxonomic position. The strain grew at 20-30°C (optimum 30°C) and pH 7.0-10.0 (optimum pH 8.0) with 1% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that the strain Mol12(T) was most closely related to Ensifer terangae LMG 7834(T) (96.78%), Rhizobium daejeonense KCTC 12121(T) (96.43%), Ensifer adhaerens Casida A(T) (96...
July 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28664520/identification-of-cyst-wall-proteins-of-the-hypotrich-ciliate-euplotes-encysticus-using-a-proteomics-approach
#16
Bangzheng Wang, Tao Niu, Muhammad Zeeshan Bhatti, Fenfen Chen, Lin Wu, Jiwu Chen
Euplotes encysticus is a species of Hypotrich ciliates, which form cyst wall by secreting the special substances on encounter of adverse environment. It has critical significance to study the component and mechanism underlying resting cyst, during resisting unfavorable conditions in dormancy induction. The present study was aimed to investigate the effects of cyst wall proteins of Euplotes encysticus by using biochemical methods. Therefore, protein extracts were separated by SDSPAGE, identified and analyzed by MALDI-TOF MS and Bioinformatics tools...
July 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28664519/poly-%C3%AE-glutamic-acid-productivity-of-bacillus-subtilis-bse1-has-positive-function-in-motility-and-biocontrol-against-fusarium-graminearum
#17
Luyao Wang, Ning Wang, Dandan Mi, Yuming Luo, Jianhua Guo
In this study, we investigate the relationship between γ-PGA productivity and biocontrol capacity of Bacillus subtilis BsE1; one bacterial isolate displayed 62.14% biocontrol efficacy against Fusarium root rot. The γ-PGA yield assay, motility assay, wheat root colonization assay, and biological control assay were analysed in different γ-PGA yield mutants of BsE1. The pgsB (PGA-synthase-CapB gene) deleted mutant of BsE1 reduced γ-PGA yield and exhibited apparent decline of in vitro motile ability. Deletion of pgsB impaired colonizing capacity of BsE1 on wheat root in 30 days, also lowered biocontrol efficacies from 62...
July 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28664518/limnobacter-humi-sp-nov-a-thiosulfate-oxidizing-heterotrophic-bacterium-isolated-from-humus-soil-and-emended-description-of-the-genus-limnobacter-spring-et-al-2001
#18
Tuan Manh Nguyen, Jaisoo Kim
Three Gram-negative, strictly aerobic, chemolithoheterotrophic bacterial strains, designated UCM-30, UCM-33, and UCM-39(T), were isolated in South Korea. Based on their 16S rRNA gene sequences, the three isolated strains were found to be similar to Limnobacter thiooxidans CS-K2(T) (97.41-97.68%), Limnobacter litoralis KP1-19(T) (95.55-95.76%), and various genera belonging to the class Betaproteobacteria (90.34-93.34%). DNA-DNA hybridization showed 79.3-83.9% similarity between the genomic DNA of UCM-39(T), UCM-30, and UCM-33, while the sequence similarity between UCM-39(T) and L...
July 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28664517/viridibacterium-curvum-gen-nov-sp-nov-isolated-from-freshwater
#19
Ji Young Kang, Jeesun Chun, Young Cheol Jung, Kwang Yeop Jahng
A Gram stain-negative, yellowish green-pigmented, facultatively anaerobic, motile, curved rod-shaped bacterium designated as strain JJ016(T) was isolated from an artificial lake in South Korea, and characterized using a polyphasic approach. The 16S rRNA gene sequence of strain JJ016(T) indicated that the isolate belonged to the family Rhodocyclaceae and exhibited 95.0% identity to Uliginosibacterium gangwonense 5YN10-9(T). The major cellular fatty acids of the novel strain were summed feature 3 (C16:1 ω6c and/or C16:1 ω7c), C16:0, C14:0, and summed feature 8 (C18:1 ω7c and/or C18:1 ω6c)...
July 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28664516/evaluation-and-application-of-constitutive-promoters-for-cutinase-production-by-saccharomyces-cerevisiae
#20
Juan Zhang, Yanqiu Cai, Guocheng Du, Jian Chen, Miao Wang, Zhen Kang
Cutinase as a promising biocatalyst has been intensively studied and applied in processes targeted for industrial scale. In this work, the cutinase gene tfu from Thermobifida fusca was artificially synthesized according to codon usage bias of Saccharomyces cerevisiae and investigated in Saccharomyces cerevisiae. Using the α-factor signal peptide, the T. fusca cutinase was successfully overexpressed and secreted with the GAL1 expression system. To increase the cutinase level and overcome some of the drawbacks of induction, four different strong promoters (ADH1, HXT1, TEF1, and TDH3) were comparatively evaluated for cutinase production...
July 2017: Journal of Microbiology / the Microbiological Society of Korea
journal
journal
32690
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"