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RISS 인기검색어
- 검색키워드
- 저자 : Cao Son Trinh (검색결과 4 건)
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Trinh, Cao Son,Lee, Hyeri,Lee, Won Je,Lee, Seok Jin,Chung, Namhyun,Han, Juhyeong,Kim, Jongyun,Hong, Suk-Whan,Lee, Hojoung Springer 2018 Plant cell reports Vol.37 No.6
<P>Plant growth-promoting rhizobacteria (PGPR) enhance plant development through various mechanisms; they improve the uptake of soil resources by plants to greatly promote plant growth. Here, we used Arabidopsis thaliana seedlings and Lactuca sativa to screen the growth enhancement activities of a purified PGPR, Pseudomonas nitroreducens strain IHB B 13561 (PnIHB). When cocultivated with PnIHB, both species of plants exhibited notably improved growth, particularly in regard to biomass. Quantitative reverse transcription polymerase chain reaction analysis indicated high expression levels of the nitrate transporter genes, especially NRT2.1, which plays a major role in the high-affinity nitrate transport system in roots. Moreover, enhanced activity of the cyclin-B1 promoter was observed when wild-type 'Columbia-0' Arabidopsis seedlings were exposed to PnIHB, whereas upregulation of cyclin-B also occurred in the inoculated lettuce seedlings. Overall, these results suggest that PnIHB improves A. thaliana and L. sativa growth via specific pathways involved in the promotion of cell development and enhancement of nitrate uptake.</P>
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Trinh, Cao Son,Jeong, Chan Young,Lee, Won Je,Truong, Hai An,Chung, Namhyun,Han, Juhyeong,Hong, Suk-Whan,Lee, Hojoung Elsevier 2018 Vol. No.
<P><B>Abstract</B></P> <P>In this study, a novel plant growth-promoting rhizobacteria (PGPR), the bacterial strain <I>Paenibacillus pabuli</I> P7S (<I>PP7S</I>), showed promising plant growth-promoting effects. Furthermore, it induced anthocyanin accumulation in <I>Arabidopsis</I>. When co-cultivated with <I>PP7S</I>, there was a significant increase in anthocyanin content and biomass of <I>Arabidopsis</I> seedlings compared with those of the control. The quantitative reverse transcription-polymerase chain reaction analysis revealed higher expression of many key genes regulating anthocyanin and flavonoid biosynthesis pathways in <I>PP7S</I>-treated seedlings when compared with that of the control. Furthermore, higher expression of pathogen-related genes and microbe-associated molecular pattern genes was also observed in response to <I>PP7S</I>, indicating that the PGPR triggered the induced systemic response (ISR) in <I>A. thaliana</I>. These results suggest that <I>PP7S</I> promotes plant growth in <I>A. thaliana</I> and increases anthocyanin biosynthesis by triggering specific ISRs in plant.</P> <P><B>Highlights</B></P> <P> <UL> <LI> <I>PP7S</I> enhance growth promotion of <I>Arabidopsis thaliana</I> via cell growth promotion. </LI> <LI> <I>PP7S</I> upregulates anthocyanin biosynthesis genes expression, subsequently increase anthocyanin accumulation in <I>Arabidopsis</I>. </LI> <LI> <I>PP7S</I> trigger specific Induced Systemic Response in <I>Arabidopsis</I> plant. </LI> <LI> <I>PP7S</I> co-cultivated <I>Arabidopsis</I> plant showed better tolerance to oxidative stress cause by salt. </LI> </UL> </P>
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이아로,Cao Son Trinh,이원제,김민서,이혜리,Duleepa Pathiraja,최인철,정남현,최창현,이병천,이호정 한국응용생명화학회 2020 Applied Biological Chemistry (Appl Biol Chem) Vol.63 No.1
Aegilops tauschii (Ae. tauschii) is a diploid (2n = 2x = 14) wild grass species, which has been reported as the progenitor of hexaploid wheat (Triticum aestivum) with D-genome. In this study, 68 Ae. tauschii accessions with diverse geographical backgrounds were investigated for their resistance to infection by the leaf rust fungi Puccinia triticina. Two Ae. tauschii accessions that exhibited hyper-resistance to leaf rust at both seedling and adult stages were identified. Utilizing two susceptible Ae. tauschii ecotypes and keumkang, a common Korean wheat cultivar known to be susceptible to leaf rust, as the negative control, further investigations were conducted for understanding the mechanism underlying immunity to leaf rust disease of these two resistant accessions. Resistant accessions displayed the increased β-1,3-glucanase activity to prevent fungal penetration and the better peroxidase activity to cope with leaf rustinduced oxidative stress. Moreover, transcriptional analyses reveal the important role of the LRR receptor-like serine/ threonine-protein kinase FLS2 (lrr) to the disease resistance of the two ecotypes. Ae. tauschii is a remarkable genetic source, especially for abiotic and biotic stress resistance genes, as the plant is known for its wide-ranging geographical habitat and adaptability to different environments. This, combined with the fact that Ae. tauschii and wheat share a close evolutionary relationship, is indicative of the immense benefit of using Ae. tauschii as a material for improving the quality of synthetic wheat. Our aim was to identify and evaluate the strongest Ae. tauschii contenders for breeding leaf rust-resistant synthetic wheat.
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Thi Hieu Thu Nguyen,Thuy Hang Dinh,Cao Son Trinh 한국미생물학회 2022 미생물학회지 Vol.58 No.3
The diazotroph Ensifer sesbaniae SDT23 was isolated from root nodules of healthy soybean plants in the Hanoi countryside. The strain possesses several agricultural beneficial characteristics, i.e. fixing nitrogen, producing Indole-3-acetic acid (IAA) and Extracellular polysaccharides (EPS), and thus has good potential in the application for organic agriculture and soil amendment. Here we show the draft genome sequence of strain SDT23 which is composed of 6,870,960 bp. with a GC content of 62.11% and approximately 6427 protein-coding sequences. The genome annotation indicated nitrogen fixationand nodulation-related genes, along with genes involved in IAA, siderophore, and EPS biosynthesis, confirming the physiological properties of the strain.
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