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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.1
- 수록면
- 38 - 47 (10page)
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The ascomycete fungus Mycosphaerella graminicola (synonym Zymoseptoria tritici) is an important pathogen of wheat causing economically significant losses. The primary nutritional mode of this fungus is thought to be hemibiotrophic. This pathogenic lifestyle is associated with an early biotrophic stage of nutrient uptake followed by a necrotrophic stage aided possibly by production of a toxin or reactive oxygen species (ROS). In many other fungi, the genes CREA and AREA are important during the biotrophic stage of infection, while the NOXa gene product is important during necrotrophic growth. To test the hypothesis that these genes are important for pathogenicity of M. graminicola, we employed an over-expression strategy for the selected target genes CREA, AREA, and NOXa, which might function as regulators of nutrient acquisition or ROS generation. Increased expressions of CREA, AREA, and NOXa in M. graminicola were confirmed via quantitative real-time PCR and strains were subsequently assayed for pathogenicity. Among them, the NOXa over-expression strain, NO2, resulted in significantly increased virulence. Moreover, instead of the usual filamentous growth, we observed a predominance of yeast-like growth of NO2 which was correlated with ROS production. Our data indicate that ROS generation via NOXa is important to pathogenicity as well as development in M. graminicola.
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참고문헌 (32)
참고문헌 신청
Eyal Z / 1987 / The septoria diseases of wheat: concepts and methods of disease management / CIMMYT
Palmer CL / 2002 / Mycosphaerella graminicola : latent infection, crop devastation and genomics / Mol Plant Pathol 3:63~70
Polley RW / 1991 / Surveys of diseases of winter wheat in England and Wales, 1976-1988 / Ann Appl Biol 119:1~20
Zwiers LH / 2002 / ABC transporters and azole susceptibility in laboratory strains of the wheat pathogen Mycosphaerella graminicola / Antimicrob Agents Chemother 46:3900~3906
Cools HJ / 2008 / Are azole fungicides losing ground against Septoria wheat disease? Resistance mechanisms in Mycosphaerella graminicola / Pest Manag Sci 64:681~684
Palmer CL / 2002 / Mycosphaerella graminicola : latent infection, crop devastation and genomics / Mol Plant Pathol 3:63~70
Polley RW / 1991 / Surveys of diseases of winter wheat in England and Wales, 1976-1988 / Ann Appl Biol 119:1~20
Zwiers LH / 2002 / ABC transporters and azole susceptibility in laboratory strains of the wheat pathogen Mycosphaerella graminicola / Antimicrob Agents Chemother 46:3900~3906
Cools HJ / 2008 / Are azole fungicides losing ground against Septoria wheat disease? Resistance mechanisms in Mycosphaerella graminicola / Pest Manag Sci 64:681~684
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