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681.

Oak Tree Canker Disease Supports Arthropod Diversity in a Natural Ecosystem

한국식물병리학회 The Plant Pathology Journal 8 Pages

한국식물병리학회 The Plant Pathology Journal 2014, 30권 1호 5 43-50 (8 pages)

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- 3,000원
Microorganisms have many roles in nature. They may act as decomposers that obtain nutrients from dead materials, while some are pathogens that cause diseases in animals, insects, and plants. Some are symbionts that enhance plant growth, such as arbuscular mycorrhizae and nitrogen fixation bacteria. However, roles of plant pathogens and diseases in natural ecosystems are still poorly understood. Thus, the current study addressed this deficiency by investigating possible roles of plant diseases in...
682.

Open Access : Hydrogen Peroxide- and Nitric Oxide-mediated Disease Control of Bacterial Wilt in Tomato Plants

한국식물병리학회 The Plant Pathology Journal 11 Pages

한국식물병리학회 The Plant Pathology Journal 2013, 29권 4호 4 386-396 (11 pages)

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- 4,000원
Reactive oxygen species (ROS) generation in tomato plants by Ralstonia solanacearum infection and the role of hydrogen peroxide (H2O2) and nitric oxide in tomato bacterial wilt control were demonstrated. During disease development of tomato bacterial wilt, accumulation of superoxide anion (O2 -) and H2O2 was observed and lipid peroxidation also occurred in the tomato leaf tissues. High doses of H2O2 and sodium nitroprusside (SNP) nitric oxide donor showed phytotoxicity to detached tomato leaves...
683.

Open Access : Xanthomonas oryzae pv. oryzae RpfE Regulates Virulence and Carbon Source Utilization without Change of the DSF Production

한국식물병리학회 The Plant Pathology Journal 10 Pages

한국식물병리학회 The Plant Pathology Journal 2013, 29권 4호 2 364-373 (10 pages)

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- 3,000원
It has been known that most regulation of pathogenicity factor (rpf ) genes in xanthomonads regulates virulence in response to the diffusible signal factor, DSF. Although many rpf genes have been functionally characterized, the function of rpfE is still unknown. We cloned the rpfE gene from a Xanthomonas oryzae pv. oryzae (Xoo) Korean race KACC10859 and generated mutant strains to elucidate the role of RpfE with respect to the rpf system. Through experiments using the rpfE-deficient mutant...
684.

Research Notes : The RpoS Sigma Factor Negatively Regulates Production of IAA and Siderophore in a Biocontrol Rhizobacterium, Pseudomonas chlororaphis O6

한국식물병리학회 The Plant Pathology Journal 7 Pages

한국식물병리학회 The Plant Pathology Journal 2013, 29권 3호 11 323-329 (7 pages)

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- 3,000원
of a pyoverdine-like siderophore, indole acetic acid, and altered isozyme patterns for peroxidase, catalase and superoxide dismutase. Consequently, sensitivity to hydrogen peroxide exposure increased in the P. chlororaphis O6 rpoS mutant, compared with the wild type. Taken together, RpoS exerted regulatory control over factors important for the habitat of P. chlororaphis O6 in soil and on root surfaces. The properties of several of the proteins in the RpoS regulon are currently unknown.
685.

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)

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- 4,000원
Burkholderia glumae causes rice grain rot and sheath rot by producing toxoflavin, the expression of which 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...
686.

Biocontrol of Late Blight (Phytophthora capsici) Disease and Growth Promotion of Pepper by Burkholderia cepacia MPC-7

한국식물병리학회 The Plant Pathology Journal 10 Pages

한국식물병리학회 The Plant Pathology Journal 2013, 29권 1호 8 67-76 (10 pages)

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- 3,000원
solubilized insoluble phosphorous in hydroxyapatite agar media. It produced gluconic acid and 2-ketogluconic acid related to the decrease in pH of broth culture. The antagonist produced benzoic acid (BA) and phenylacetic acid (PA). The authentic compounds, BA and PA, showed a broad spectrum of antimicrobial activity against yeast, several bacterial and fungal pathogens in vitro. To demonstrate the biocontrol efficiency of MPC-7 on late blight disease caused by Phytophthora capsici, pepper plants...
687.

Insight Into Genes Involved in the Production of Extracellular Chitinase in a Biocontrol Bacterium Lysobacter enzymogenes C-3

한국식물병리학회 The Plant Pathology Journal 7 Pages

한국식물병리학회 The Plant Pathology Journal 2012, 28권 4호 13 439-445 (7 pages)

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- 3,000원
The chitinase producing Lysobacter enzymogenes C-3 has previously been shown to suppress plant pathogens in vitro and in the field, but little is known of the regulation of chitinase production, or its role in antimicrobial activity and biocontrol. In this study, we isolated and characterized chitinase-defective mutants by screening the transposon mutants of L. enzymogenes C-3. These mutations disrupted genes involved in diverse functions: glucose-galactose transpoter (gluP), disulfide bond...
688.

Initial Subcellular Responses of Susceptible and Resistant Soybeans Infected with the Soybean Cyst Nematode

한국식물병리학회 The Plant Pathology Journal 8 Pages

한국식물병리학회 The Plant Pathology Journal 2012, 28권 4호 7 401-408 (8 pages)

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- 3,000원
Initial subcellular responses in susceptible (PI 274420) and resistant (cv. Hartwig) soybeans infected with the soybean cyst nematode (SCN) were examined 2 and 4 days after inoculation (DAI). Subcellular features common to both soybeans at 2 DAI included hypertrophied initial syncytial cells (ISCs) and syncytium-component cells (SCs) with a dense cytoplasm containing proliferated rough and smooth endoplasmic reticulum (RER and SER), a hypertrophied nucleolus, and reduced vacuoles, suggesting...
689.

Expression of hpa1 Gene Encoding a Bacterial Harpin Protein in Xanthomonas oryzae pv. oryzae Enhances Disease Resistance to Both Fungal and Bacterial Pathogens in Rice and Arabidopsis

한국식물병리학회 The Plant Pathology Journal 9 Pages

한국식물병리학회 The Plant Pathology Journal 2012, 28권 4호 3 364-372 (9 pages)

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- 3,000원
Xanthomonas oryzae pv. oryzae causing bacterial leaf blight disease in rice produces and secretes Hpa1 protein that belongs to harpin protein family. Previously it was reported that Hpa1 induced defense responses when it was produced in tobacco. In this study, we expressed hpa1 gene in rice and Arabidopsis to examine the effects of Hpa1 expression on disease resistance to both fungal and bacterial pathogens. Expression of hpa1 gene in rice enhanced disease resistance to both X. oryzae pv. oryzae...
690.

Genetic Diversity of avrBs-like Genes in Three Different Xanthomonas Species Isolated in Korea

한국식물병리학회 The Plant Pathology Journal 7 Pages

한국식물병리학회 The Plant Pathology Journal 2011, 27권 1호 5 26-32 (7 pages)

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- 3,000원
Plant-pathogenic bacteria including Xanthomonas spp. carry genetic diversity in composition of avirulence genes for interaction with their host plants. Previously, we reported genetic diversity of avirulence genes in X. axonopodis pv. glycines. In this study, we determined genetic diversity of five avirulence genes, avrBs1, avrBs2, avrBs3, avrBs4, and avrRxv, in three other Xanthomonas species isolated in Korea by genomic southern hybridization. Although Korean races of X. campestris pv....

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