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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제26권 제7호
- 발행연도
- 2016.1
- 수록면
- 1,311 - 1,319 (9page)
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초록· 키워드
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Alternaria brassicicola (Schwein.) invades Brassicaceae and causes black spot disease, significantly lowering productivity. Mitogen-activated protein kinases (MAPKs) and their upstream kinases, including MAPK kinases (MAPKKs) and MAPKK kinases (MAPKKK), comprise one of the most important signaling pathways determining the pathogenicity of diverse plant pathogens. The AbSte7 gene in the genome of A. brassicicola was predicted to be a homolog of yeast Ste7, a MAPKK; therefore, the function was characterized by generating null mutant strains with a gene replacement method. AbSte7 replacement mutants (RMs) had a slower growth rate and altered colony morphology compared with the wild-type strain. Disruption of the AbSte7 gene resulted in defects in conidiation and melanin accumulation. AbSte7 was also involved in the resistance pathways in salt and oxidative stress, working to negatively regulate salt tolerance and positively regulate oxidative stress. Pathogenicity assays revealed that AbSte7 RMs could not infect intact cabbage leaves, but only formed very small lesions in wounded leaves, whereas typical lesions appeared on both intact and wounded leaves inoculated with the wild-type strain. As the first studied MAPKK in A. brassicicola, these data strongly suggest that the AbSte7 gene is an essential element for the growth, development, and pathogenicity of A. brassicicola.
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참고문헌 (25)
참고문헌 신청
Ba bitskaia VG / 2000 / Melanin pigments of the fungi Paecilomyces variotii and Aspergillus carbonarius / Prikl. Biokhim. Mikrobiol 36:153~159
Chen LY / 2005 / Dark leaf spot (Alternaria brassicicola) on Chinese cabbage: spatial patterns / Aust. J. Agric. Res 56:699~714
Chen RE / 2007 / Function and regulation in MAPK signaling pathways: lessons learned from the yeast Saccharomyces cerevisiae / Biochim. Biophys. Acta 1773:1311~1340
Cho Y / 2007 / The Fus3/Kss1 MAP kinase homolog Amk1regulates the expression of genes encoding hydrolytic enzymes in Alternaria brassicicola / Fungal Genet. Biol 44:543~553
Cho Y / 2009 / Identification of novel virulence factors associated with signal transduction pathways in Alternaria brassicicola / Mol. Microbiol 72:1316~1333
Chen LY / 2005 / Dark leaf spot (Alternaria brassicicola) on Chinese cabbage: spatial patterns / Aust. J. Agric. Res 56:699~714
Chen RE / 2007 / Function and regulation in MAPK signaling pathways: lessons learned from the yeast Saccharomyces cerevisiae / Biochim. Biophys. Acta 1773:1311~1340
Cho Y / 2007 / The Fus3/Kss1 MAP kinase homolog Amk1regulates the expression of genes encoding hydrolytic enzymes in Alternaria brassicicola / Fungal Genet. Biol 44:543~553
Cho Y / 2009 / Identification of novel virulence factors associated with signal transduction pathways in Alternaria brassicicola / Mol. Microbiol 72:1316~1333
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