자료유형
전체 선택해제
총 13건 검색
본문검색 결과만 보기
-
Modulation of Quorum Sensing in Acyl homoserine Lactone Producing or Degrading Tobacco Plants Leads to Alteration of Induced Systemic Resistance Elicited by the Rhizobacterium Serratia marcescens 90 166
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2013, 29권 2호 8 182-192 (11 pages)
Numerous root-associated bacteria (rhizobacteria) are known to elicit induced systemic resistance (ISR) in plants. Bacterial cell-density-dependent quorum sensing (QS) is thought to be important for ISR. Here, we investigated the role of QS in the ISR elicited by the rhizobacterium, Serratia marcescens strain 90?166, in tobacco. Since S. marcescens 90?166 produces at least three QS signals, QS-mediated ISR in strain 90?166 has been difficult to understand. Therefore, we investigated the ISR... -
Virulence Attenuation of Pectobacterium carotovorum Using N-Acyl-homoserine Lactone Degrading Bacteria Isolated from Potato Rhizosphere
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 3호 5 242-248 (7 pages)
Several soil bacteria were found to degrade N-Acylhomoserine lactones (NAHLs), thereby interfering with the bacterial quorum sensing system. In this research, fifteen strains of NAHL degrading rhizobacteria were isolated from potato rhizosphere. Based on phenotypic characteristics and 16S rDNA sequence analyses, the strains were identified as members of genera Bacillus, Streptomyces, Arthrobacter, Pseudomonas and Mesorhizobium. All tested isolates were capable to degrade both synthetic and... -
고체상 합성법에 의해 합성된 N-(3-hydroxysulfonyl)-L-homoserine Lactone 유사체들의 Vibrio harveyi 쿼럼 센싱에 대한 저해 효과
김철진, 박형연, 김재은, 박희진, 이본수, 최유상, 이준희, 윤제용, Kim. Cheol-Jin, Park. Hyung-Yeon, Kim. Jae-Eun, Park. Hee-Jin, Lee. Bon-Su, Choi. Yu-Sang, Lee. Joon-H 한국미생물생명공학회 한국미생물·생명공학회지 10 Pages
한국미생물생명공학회 한국미생물·생명공학회지 2009, Vol.37 No.3 248-257 (10 pages)
주 신호물질인 N-3-hydroxybutanoyl-L-homoserine lactone(3-OH-$C_4$-HSL)의 분자 구조를 변형함에 의해 개발되었다. 일련의 구조 변형체들인 N-(3-hyoxysulfonyl)-L-homoserine lactones(HSHLs)들은 고체상 유기합성법 (solid-phase organic synthesis method)으로 합성되었다. 이 물질들의 생체내 쿼럼 센싱 저해능이 V. harveyi 발광을 이용한 bloassay를 system에 의해 측정되었을 때, 모두 의미있는 저해효과를 보여주었다. 이 물질들과 3-OH-$C_4$-HSL 수용체 단백질인 LuxN 사이의 상호작용을 분석하기 위하여 LuxN의 신호 결합... -
Proteomic Analysis of a Global Regulator GacS Sensor Kinase in the Rhizobacterium, Pseudomonas chlororaphis O6
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2014, 30권 2호 15 220-227 (8 pages)
The GacS/GacA system in the root colonizer Pseudomonas chlororaphis O6 is a key regulator of many traits relevant to the biocontrol function of this bacterium. Proteomic analysis revealed 12 proteins were down-regulated in a gacS mutant of P. chlororaphis O6. These GacS-regulated proteins functioned in combating oxidative stress, cell signaling, biosynthesis of secondary metabolism, and secretion. The extent of regulation was shown by real-time RT-PCR to vary between the genes. Mutants of P.... -
새로운 생물적 방제 전략: 미생물 인자 유래 식물면역 유도
이상무, 정준휘, 류충민, 한국식물병리학회 식물병연구 19 Pages
한국식물병리학회 식물병연구 2015, 21권 2호 10 161-179 (19 pages)
-
Development of a Sensitive Bioassay Method for Quorum Sensing Inhibitor Screening Using a Recombinant Agrobacterium tumefaciens
Kim. Yeon Hee, Kim. Young Hee, Kim. Jung Sun, Park. Sunghoon 한국생물공학회 Biotechnology and bioprocess engineering 7 Pages
한국생물공학회 Biotechnology and bioprocess engineering 2005, Vol.10 No.4 322-328 (7 pages)
-
난배양성 토양세균의 배양법 평가 및 신 분류군의 순수분리
김도형, 이상훈, 조재창, Kim. Do-Hyoung, Lee. Sang-Hoon, Cho. Jae-Chang 한국미생물학회 미생물학회지 6 Pages
한국미생물학회 미생물학회지 2008, Vol.44 No.4 352-357 (6 pages)
analogue)인 anthraquinone disulfonate, 정족수인식 신호물질(quorum-signaling compounds)인 acyl homoserine lactones, 과산화물(exogenous peroxide)로부터 세균을 보호하기 위한 catalase가 사용되었다. $CO_2$ 과분압(5%, v/v) 조건에서 60일간 배양하였을 때, catalase가 첨가된 배지가 가장 높은 세균집락수(CFU)를 보였다. 이 배지로부터 147개의 균주를 무작위적으로 선택하여 순수분리하고 16S rRNA 유전자의 염기서열을 이용한 계통학적 분석을 실시한 결과, 순수분리된 균주의 약30%가 이전에 배양 또는 발견된 적이 없는... -
Role of Two Sets of RND-Type Multidrug Efflux Pump Transporter Genes, mexAB-oprM and mexEF-oprN, in Virulence of Pseudomonas syringae pv. tabaci 6605
Yuki Ichinose, Takafumi Nishimura, Minori Harada, Ryota Kashiwagi, Mikihiro Yamamoto, Yoshiteru Noutoshi, Kazuhiro Toyoda, Fumiko Taguchi, Daigo Takemoto, Hidenori Matsui 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 2호 4 148-156 (9 pages)
Pseudomonas syringae pv. tabaci 6605 has two mul- tidrug resistance (MDR) efflux pump transporters, MexAB-OprM and MexEF-OprN. To understand the role of these MDR efflux pumps in virulence, we generated deletion mutants, ∆mexB, ∆mexF, and ∆mexB∆mexF, and investigated their sensitivity to plant-derived antimicrobial compounds, antibiotics, and virulence. Growth inhibition assays with KB soft agar plate showed that growth of the wild-type (WT) was inhibited by 5 μl of 1 M... -
Effect of Producing Different Phenazines on Bacterial Fitness and Biological Control in Pseudomonas chlororaphis 30-84
한국식물병리학회 The Plant Pathology Journal 15 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 1호 5 44-58 (15 pages)
Pseudomonas chlororaphis 30-84 is a biological control agent selected for its ability to suppress diseases caused by fungal pathogens. P. chlororaphis 30-84 produces three phenazines: phenazine-1-carboxylic acid (PCA), 2-hydroxy-phenazine-1-carboxylic acid (2OHPCA) and a small amount of 2-hydroxy-phenazine (2OHPHZ), and these are required for fungal pathogen inhibition and wheat rhizosphere competence. The two, 2-hydroxy derivatives are produced from PCA via the activity of a phenazine-modifying... -
Research Articles : RNAseq-based Transcriptome Analysis of Burkholderia glumae Quorum Sensing
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2013, 29권 3호 4 249-259 (11 pages)
is regulated by quorum sensing (QS). The QS systems of B. glumae rely on N-octanoyl homoserine lactone, synthesized by TofI and its cognate receptor TofR, to activate the genes for toxoflavin biosynthesis and an IclR-type transcriptional regulator gene, qsmR. To understand genome-wide transcriptional profiling of QS signaling, we employed RNAseq of the wild-type B. glumae BGR1 with QS-defective mutant, BGS2 (BGR1 tofI::Ω) and QS-dependent transcriptional regulator mutant, BGS9 (BGR1 qsmR::Ω).... -
Biological Control of Gom-chwi (Ligularia fischeri) Phytophthora Root Rot with Enterobacter asburiae ObRS-5 to Suppress Zoosporangia Formation and Zoospores Germination
Dayeon Kim, Sang Yeob Lee, Seong Ho Ahn, Ji Hee Han, Jin Woo Park 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 5 244-254 (11 pages)
Gom-chwi (Ligularia fischeri) is severely infected with Phytophthora drechsleri, the causal organism of Phy- tophthora root rot, an economically important crop disease that needs management throughout the cultiva- tion period. In the present study, Phytophthora root rot was controlled by using bacterial isolates from rhizo- sphere soils collected from various plants and screened for antagonistic activity against P. drechsleri. A total of 172 bacterial strains were isolated, of which, 49 strains...
