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A report on 53 unrecorded bacteria species in Korea in the class Gammaproteobacteria
Kanjanasuntree, Rungravee,Cha, Chang-Jun,Cho, Jang-Cheon,Im, Wan-Taek,Kim, Myung Kyum,Jeon, Che-Ok,Joh, Kiseong,Kim, Seung-Bum,Seong, Chi-Nam,Yi, Hana,Lee, Soon Dong,Bae, Jin-Woo,Kim, Wonyong The National Institute of Biological Resources 2019 Journal of species research Vol.8 No.4
During an investigation of unrecorded prokaryotic species in Republic of Korea, a total of 53 bacterial strains belonging to the class Gammaproteobacteria were isolated from soil, seawater, tidal flats, rhizosphere, salt ponds, beach sand, urine, manure, sediment, and animal intestine (Russian grayling butterfly [Hipparchia autonoe], mouse [Mus musculus], and sea bass [Lateolabrax japonicus]). Strains were identified to species using the 16S rRNA gene sequence, showing high similarity (>98.7%) with the closest bacterial species and forming a robust clade in the neighbor-joining phylogenetic tree. The 53 strains of Gammaproteobacteria in this study have not been report previously in Korea. Therefore, we describe 27 genera of 16 families in 7 orders: 13 strains in the order Alteromonadales, 1 strain in the order Chromatiales, 11 strains in the order Enterobacterales, 7 strains in the order Oceanospirillales, 10 strains in the order Pseudomonadales, 8 strains in the order Vibrionales, and 3 strains in the order Xanthomonadales. Gram reaction, strain ID, isolation source, and morphological and basic biochemical characteristics are described for each species.
A report on 53 unrecorded bacteria species in Korea in the class Gammaproteobacteria
Rungravee Kanjanasuntree,Chang-Jun Cha,조장천,임완택,김명겸,Che Ok Jeon,KISEONG JOH,김승범,성치남,Hana Yi,Soon Dong Lee,Jin-Woo Bae,김원용 국립생물자원관 2019 Journal of species research Vol.8 No.4
During an investigation of unrecorded prokaryotic species in Republic of Korea, a total of 53 bacterial strains belonging to the class Gammaproteobacteria were isolated from soil, seawater, tidal flats, rhizosphere, salt ponds, beach sand, urine, manure, sediment, and animal intestine (Russian grayling butterfly [Hipparchia autonoe], mouse [Mus musculus], and sea bass [Lateolabrax japonicus]). Strains were identified to species using the 16S rRNA gene sequence, showing high similarity (>98.7%) with the closest bacterial species and forming a robust clade in the neighbor-joining phylogenetic tree. The 53 strains of Gammaproteobacteria in this study have not been report previously in Korea. Therefore, we describe 27 genera of 16 families in 7 orders: 13 strains in the order Alteromonadales, 1 strain in the order Chromatiales, 11 strains in the order Enterobacterales, 7 strains in the order Oceanospirillales, 10 strains in the order Pseudomonadales, 8 strains in the order Vibrionales, and 3 strains in the order Xanthomonadales. Gram reaction, strain ID, isolation source, and morphological and basic biochemical characteristics are described for each species.
Kim, Jong-Hwa,Kim, Kiyoung,Kanjanasuntree, Rungravee,Kim, Wonyong Elsevier 2019 Journal of dairy science Vol.102 No.4
<P><B>ABSTRACT</B></P> <P>Atopic dermatitis (AD) causes chronic inflammatory skin disease that results in a considerable economic expense and social burden. Certain <I>Lactobacillus</I> strains ameliorate AD, but the effects of probiotic yeast on AD have not been investigated to date. In this study, we isolated <I>Kazachstania turicensis</I> CAU Y1706, commonly known as a kefir yeast, and evaluated its mitigating effects using an ovalbumin-sensitized AD mouse model. Overall, <I>K. turicensis</I> CAU Y1706 was generally effective against AD. Oral administration of <I>K. turicensis</I> CAU Y1706 suppressed T helper type 2 immune response factors by regulatory T cells and upregulation of T helper type 1 cytokine levels. <I>Kazachstania turicensis</I> CAU Y1706 also reduced IgE levels as well as the number of eosinophil and mast cells. Furthermore, feces from <I>K. turicensis</I> CAU Y1706-treated mice had more butyrate-producing bacteria, such as <I>Lactobacillus</I>, <I>Bacteroides</I>, <I>Ruminococcus</I>, and <I>Akkermansia</I>, although the level of <I>Fecalibacterium</I> was significantly reduced. Therefore, <I>K. turicensis</I> CAU Y1706 modulates immune responses as well as gut microbiota, thus indicating that it has potential for application as a supplement for alleviation of AD.</P>