A5008284828- Genomics and Phylogenetic Studies
- Microbial Community Ecology and Physiology
- Microbial Natural Products and Biosynthesis
- Plant Pathogens and Fungal Diseases
- Microbial Metabolism and Applications
- Enzyme Production and Characterization
- Structural Health Monitoring Techniques
- Actinomycetales infections and treatment
- Plant Disease Resistance and Genetics
- Ultrasonics and Acoustic Wave Propagation
- Probiotics and Fermented Foods
- Food Quality and Safety Studies
- Plant-Microbe Interactions and Immunity
- Bacteriophages and microbial interactions
- Identification and Quantification in Food
- Non-Destructive Testing Techniques
- Fungal Biology and Applications
- Ecology and Conservation Studies
- Microbial Applications in Construction Materials
- Aquaculture disease management and microbiota
- Diatoms and Algae Research
- Mycorrhizal Fungi and Plant Interactions
- Agriculture, Soil, Plant Science
- Mycobacterium research and diagnosis
- Satellite Image Processing and Photogrammetry
Chungnam National University
2015-2024
RTX (United States)
2024
Jet Propulsion Laboratory
2021
Hanyang University
2019
Chonbuk National University Hospital
2018
Chonnam National University Hwasun Hospital
2016
Jeonbuk National University
2015
California Institute of Technology
2014
Arizona State University
2010-2011
Korea University
2010
A new methodology of guided-wave-based nondestructive testing (NDT) is developed to detect crack damage in a thin metal structure without using prior baseline data or predetermined decision boundary. In conventional techniques, often identified by comparing the 'current' obtained from potentially damaged condition with 'past' collected at pristine structure. However, it has been reported that this type pattern comparison can lead increased false alarms due its susceptibility varying...
Six novel gliding, heterotrophic, Gram-negative, yellow-pigmented, aerobic, oxidase- and catalase-positive bacteria were isolated from the green alga Ulva fenestrata , sea water a bottom sediment sample collected in Gulf of Peter Great, Sea Japan. 16S rRNA gene sequence analysis revealed that strains studied members family Flavobacteriaceae . On basis their phenotypic, chemotaxonomic, genotypic phylogenetic characteristics, have been assigned to new genus Maribacter gen. nov., as...
An actinobacterial strain was isolated from marine sediment taken the Troitsa Bay of Gulf Peter Great, East Siberian Sea, and subjected to a taxonomic investigation. The isolate, designated KMM 3905 T , Gram-positive, aerobic, non-motile coccoid. tolerated up 15 % NaCl in growth media, although its presence not essential for growth. Chemotaxonomic phylogenetic properties were consistent with classification genus Kocuria . formed an independent line 16S rRNA gene tree encompassed by members...
The taxonomic position of a marine, gliding, pink-pigmented, aerobic, heterotrophic and Gram-negative bacterium was established using polyphasic approach. 16S rRNA gene sequence analysis indicated that the strain member phylum ‘ Bacteroidetes ’ in which it occupied separate lineage. predominant cellular fatty acids were C15 : 0 iso, C17 iso 3-OH, summed feature 3 4. DNA G+C content 48·7 mol%. Phylogenetic evidence results phenotypic, genotypic chemotaxonomic analyses strongly support...
Three novel heterotrophic, Gram-negative, yellow-pigmented, aerobic, gliding, oxidase- and catalase-positive bacteria were isolated from algae collected in the Gulf of Peter Great, Sea Japan. 16S rRNA gene sequence analysis revealed that strains studied represented members family Flavobacteriaceae showed 93·5–93·8 % similarity with their closest relative, Psychroserpens burtonensis . The DNA G+C content was 34–37 mol%. major respiratory quinone MK-6. predominant fatty acids iso-C 15 : 0 ,...
Two Gram-negative, yellow-pigmented bacteria designated PSD1-4T and PHA3-4T, isolated from two sand-dune plant species inhabiting coastal areas in Tae-an, Korea, were subjected to taxonomic investigation. 16S rRNA gene sequence analysis indicated that both isolates should be placed the genus Chryseobacterium of family Flavobacteriaceae. The phenotypic properties strains also consistent with their classification into this genus. levels similarity between strain other 95.2-97.2%; those PHA3-4T...
Abstract A violacein-producing bacterial strain was isolated and identified as a relative of Duganella violaceinigra YIM 31327 based upon phylogenetic analyses using the 16S rRNA, gyrB vioA gene sequences fatty acid methyl ester (FAME) analysis. This new designated D. str. NI28. Although these two strains appear related analyses, isolate phenotypically different from type it grew 25% faster on nutrient media produced 45-fold more violacein. When compared with several other violacein...
Two heterotrophic, aerobic, Gram-negative, pigmented and non-motile marine bacteria that were isolated from the green alga Ulva fenestrata studied by polyphasic taxonomic methods. 16S rDNA sequence analysis indicated strain KMM 3912 T formed a distinct lineage within family Flavobacteriaceae . On basis of phenotypic, chemotaxonomic, genotypic phylogenetic analyses, novel classified as Ulvibacter litoralis gen. nov., sp. nov. The type is (=KCTC 12104 =CCUG 47093 ).
The taxonomic position of three novel sea-water isolates was determined. strains studied were strictly aerobic, heterotrophic, pigmented, motile by gliding, Gram-negative and oxidase-, catalase-, β-galactosidase- alkaline phosphatase-positive. 16S rRNA gene sequence phylogenetic analysis indicated that the KMM 6020T, 6021 6028 occupied a distinct lineage within family Flavobacteriaceae. major respiratory quinone MK-6. predominant fatty acids i15 : 0, 1, 0 3-OH, i17 1ω9c 3-OH. On basis...
A taxonomic study of a novel marine, heterotrophic, non-gliding, halotolerant and light-pink-pigmented bacterium was carried out using polyphasic approach. 16S rRNA gene sequence analysis revealed that strain KMM 6241 T is member the phylum Bacteroidetes. Strain formed cluster with genera Algoriphagus , Chimaereicella Hongiella similarities 94.0–98.2 %. ornithinivorans closest relative isolate. Comparative phenotypic, chemotaxonomic genotypic characteristics representatives many similar...
Three strains of the marine, gliding, pigmented, facultatively anaerobic, heterotrophic, Gram-negative bacteria were isolated from green algae Acrosiphonia sonderi (Kütz) Kornm and Ulva fenestrata Ruprecht inhabiting Sea Japan. 16S rDNA sequence analysis indicated that members family Flavobacteriaceae , in which they occupied separate lineages. The predominant cellular fatty acids i15 : 0, a15 1, 15 1 ω 6 c 0 3-OH i17 3-OH. DNA base compositions 31–33 mol% G+C. Based on phenotypic,...
Microbial community analysis based on the 16S rRNA-gene is used to investigate both beneficial and harmful microorganisms in various fields environments. Recently, next-generation sequencing (NGS) technology has enabled rapid accurate microbial analysis. Despite these advantages of NGS metagenomics study, sample transport, storage conditions, amplification, library preparation kits, sequencing, bioinformatics procedures can bias results. In this eight mock communities were pooled from...
Concerns over Klebsiella pneumoniae resistance to the last-line antibiotic treatment have prompted a reconsideration of bacteriophage therapy in public health. Biotechnological application phages and their gene products as an alternative antibiotics necessitates understanding genomic context. This study sequenced, annotated, characterized, compared two phages, KP1 KP12. Physiological validations identified KP12 members Myoviridae family. Both showed that activities were stable wide range pH...
A targeted and logical discovery method was devised for natural products containing piperazic acid (Piz), which is biosynthesized from ornithine by l-ornithine N-hydroxylase (KtzI) N-N bond formation enzyme (KtzT). Genomic signature-based screening of a bacterial DNA library (2020 strains) using polymerase chain reaction (PCR) primers targeting ktzT identified 62 strains (3.1%). The PCR amplicons KtzT-encoding genes were phylogenetically analyzed to classify the 23 clades into two...
An almost complete sequence of the 16S rDNA type strain Amycolatopsis rugosa was determined following direct sequencing amplified gene. The aligned with those representatives family Pseudonocardiaceae and related actinomycetes phylogenetic trees were inferred by using three tree-making algorithms. organism formed a distinct clade within evolutionary radiation occupied Pseudonocardiaceae. It also readily distinguished from all validly described genera classified in this taxon combination...
The taxonomic position of three novel marine, heterotrophic, pigmented and agarolytic bacteria with gliding motility, isolated from the sea urchin Strongylocentrotus intermedius, was investigated. 16S rRNA gene sequence analysis revealed that strains KMM 6166, 6172T 6173 are members phylum Bacteroidetes; their nearest neighbours were Belliella baltica Hongiella marincola (similarities 94.5 93.6 %, respectively). DNA G+C content 44-45 mol%. predominant fatty acids C15 : 0 iso, C16:1omega5c,...
A novel marine bacterium isolated from the soft coral Paragorgia arborea in Sea of Okhotsk was studied by using a polyphasic taxonomic approach. The strain, KMM 6029 T , strictly aerobic, heterotrophic, yellow-pigmented, non-motile gliding, Gram-negative and oxidase-, catalase- alkaline phosphatase-positive. From results 16S rRNA gene sequence analysis, strain occupied distinct lineage within family Flavobacteriaceae showed 95·5 % similarity to its closest relative, Formosa algae . DNA G+C...
An aerobic, halotolerant, Gram-negative bacterium was isolated from the sea urchin Strongylocentrotus intermedius and subjected to taxonomic characterization. The strain, designated KMM 6042(T), rod-shaped, motile yellow-pigmented. Phylogenetic analysis indicated that strain most closely related type of Altererythrobacter dongtanensis, level 16S rRNA gene sequence similarity between two 99.0 %. However, DNA-DNA relatedness strains 34.4 ± 7.6 Physiological chemotaxonomic properties clearly...
An isolate from Cerrado soil, provisionally assigned to the genus Nocardia, was shown have chemical and morphological properties typical of nocardiae. The strain formed a distinct monophyletic clade in 16S rDNA tree together with Nocardia africana, vaccinii veterana, showed unique combination phenotypic that distinguished it representatives all recognized species Nocardia. DNA–DNA relatedness studies indicated belongs genomic is readily its nearest neighbours, type strains N. africana...
The taxonomic position of two actinomycetes isolated from soil was established using a polyphasic approach. organisms, designated 213ET and 213F, were found to have chemical morphological properties consistent with their assignment the genus Gordonia. Nearly complete sequences 16S rDNA genes strains determined following isolation direct sequencing amplified genes. tested identical formed phylogenetic line within evolutionary radiation occupied by Gordonia that most closely related...