Novel aerobic and thermophilic bacteria enriched with Macromolecular Carbohydrates

Title
Novel aerobic and thermophilic bacteria enriched with Macromolecular Carbohydrates
Author(s)
오지혜; 장하니; 양성현; 서현석; 이정현; 권개경
KIOST Author(s)
Seo, Hyun Seok(서현석)Lee, Jung Hyun(이정현)Kwon, Kae Kyoung(권개경)
Publication Year
2014-05-01
Abstract
Diverse microorganisms are reported from marine environment, displaying various physico-chemical ecosystems which are three dimensional, however, many of which still not identified. Thermophilic bacteria were enriched with 0.1% of lignin or cellulose at 50 OC. The 74 isolates affiliated with Bacillales (65%), Proteobacteria (16%), Actinobacteria (8%), Bacteroidetes (7%), and Archaea (4%) and approx. 20% of isolates constitutes novel taxon. Some of the isolates closely related with previously reported thermophiles but some has been not known as thermophilic or thermotolerants. Amongst, four isolates produces deep branch in each phylogenetic group shows highest similarity with Caldalkalibacillus uzonensis (MEBiC 09487, 89%), Mechercharimyces asporophorigenens (MEBiC 07976, 91%), Pararhodobacter aggregans (MEBiC 09520, 90.7%), or Rhodothermus profundi (MEBiC 09517, 88%). The four isolates were neutrophilic and halophilic and showed 50 OC as optimum growth temperature. The results implied that novel microorganisms could be enriched by combination of high temperature and recalcitrant substrates. cellulose at 50 OC. The 74 isolates affiliated with Bacillales (65%), Proteobacteria (16%), Actinobacteria (8%), Bacteroidetes (7%), and Archaea (4%) and approx. 20% of isolates constitutes novel taxon. Some of the isolates closely related with previously reported thermophiles but some has been not known as thermophilic or thermotolerants. Amongst, four isolates produces deep branch in each phylogenetic group shows highest similarity with Caldalkalibacillus uzonensis (MEBiC 09487, 89%), Mechercharimyces asporophorigenens (MEBiC 07976, 91%), Pararhodobacter aggregans (MEBiC 09520, 90.7%), or Rhodothermus profundi (MEBiC 09517, 88%). The four isolates were neutrophilic and halophilic and showed 50 OC as optimum growth temperature. The results implied that novel microorganisms could be enriched by combination of high temperature and recalcitrant substrates.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/26303
Bibliographic Citation
한국미생물학회 춘계 학술대회, pp.182, 2014
Publisher
한국미생물학회
Type
Conference
Language
English
Publisher
한국미생물학회
Related Researcher
Research Interests

marine biotechnology,molecular microbiology,해양생명공학,분자미생물학

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