J. Ka

Publications106
h-index26
Citations2,377
Highly Influential Citations141
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Anaerobic activation of the entire denitrification pathway in Pseudomonas aeruginosa requires Anr, an analog of Fnr
TLDR
Results indicate that the anr gene product plays a key role in anaerobically activating the entire denitrification pathway.
Impact of Asian dust events on airborne bacterial community assessed by molecular analyses
Spirosoma rigui sp. nov., isolated from fresh water.
TLDR
A phylogenetic tree based on 16S rRNA gene sequences showed that strain WPCB118(T) had an evolutionary lineage within the radiation encompassing the members of the family 'Flexibacteraceae', its closest neighbour being Spirosoma linguale LMG 10896(T ) (93.7 % gene sequence similarity).
Genetic and phenotypic diversity of 2,4-dichlorophenoxyacetic acid (2,4-D)-degrading bacteria isolated from 2,4-D-treated field soils
TLDR
Forty-seven numerically dominant 2,4-dichlorophenoxyacetic acid (2, 4-D)-degrading bacteria were isolated at different times from 1989 through 1992 from eight agricultural plots, and these isolates were strains of Sphingomona, Pseudomonas, or Alcaligenes species.
Description of Microvirga aerophila sp. nov. and Microvirga aerilata sp. nov., isolated from air, reclassification of Balneimonas flocculans Takeda et al. 2004 as Microvirga flocculans comb. nov. and…
TLDR
The results of DNA-DNA hybridization and the phenotypic data showed that strains 5420S-12(T) and 5420 S-16(T), isolated from air samples, could be distinguished from phylogenetically related species and represent two novel species within the genus Microvirga, for which the names MicrovirGA aerophila sp.
Analyses of bacterial communities in meju, a Korean traditional fermented soybean bricks, by cultivation-based and pyrosequencing methods
TLDR
It is indicated that the bacterial communities in meju were very diverse and a complex microbial consortium containing various microorganisms got involved in me ju fermentation than the authors expected before.
Altererythrobacter namhicola sp. nov. and Altererythrobacter aestuarii sp. nov., isolated from seawater.
TLDR
Two non-motile, orange- or yellow-pigmented bacteria, designated strains KYW48(T) and KYW147(T), were isolated from seawater collected from the South Sea, Republic of Korea and a phylogenetic tree based on 16S rRNA gene sequences showed that strains were grouped with the members of the family Erythrobacteraceae and formed a distinct clade with theMembers of the genus AltererythRobacter.
Members of the phylum Acidobacteria are dominant and metabolically active in rhizosphere soil.
TLDR
It is suggested that the bacteria belonging to the phylum Acidobacteria might be numerically dominant as well as metabolically active in the soil sample, implying that the ph Asylum Acidob bacteria might be highly involved in the biogeochemical cycles of the rhizosphere soil.
Effects of Low Temperature and Freeze-Thaw Cycles on Hydrocarbon Biodegradation in Arctic Tundra Soil
  • M. Eriksson, J. Ka, W. Mohn
  • Engineering, Environmental Science
    Applied and Environmental Microbiology
  • 1 November 2001
ABSTRACT Degradation of petroleum hydrocarbons was monitored in microcosms with diesel fuel-contaminated Arctic tundra soil incubated for 48 days at low temperatures (−5, 0, and 7°C). An additional…
Effects of diverse water pipe materials on bacterial communities and water quality in the annular reactor.
TLDR
Steel pipe exhibited the highest bacterial diversity among the metallic pipes, and the DGGE profile of biofilm on PVC showed three additional bands not detected from the profiles of the metallic materials.
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