지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2006.9
- 수록면
- 271 - 277 (7page)
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초록· 키워드
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The interaction effects of ozone (O₃) and anthracnose (Colletotrichum acutatum) disease were examined in green fruits and seedlings of pepper (Capsicum annuum). Pre-treatment with O₃ as a factor causing predisposition to the disease prior to infection was investigated in green fruits and stems using an O₃ concentration of 150 nL/L, which is easily reached in summer in Korea. O₃ treatment increased antioxidative responses in pepper foliar tissues, and defense against anthracnose was examined in fruits and stems. Anthracnose severity on stems of the O₃-treated, ozone-sensitive ‘Dabotop’ cultivar was always lower than that on untreated plants, but the difference was not always significant (p=0.147). Significantly lower anthracnose severity was found on O₃-treated green ‘Dabotop’ fruits as compared to untreated green fruits in three of eight replicate experiments. In contrast, hypersensitive responses in O₃-treated seedlings were significantly accelerated compared to those in untreated seedlings by about 7.8 h (p＜0.001). This confirmed previous evidence of increased transcription of plant defense genes with O₃ treatment. O₃ treatment significantly decreased chlorophyll concentrations in the leaves in four replicate experiments (p＜0.01). O₃ increased hypersensitive responses in the leaves of pepper seedlings, but this increase did not contribute to the control of anthracnose severity on fruits. Antioxidant reactions to O₃ were limited to chlorosis and changes in hypersensitive responses in leaves.
목차
Materials and Methods
Results
Discussion
Acknowledgments
References
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UCI(KEPA) : I410-ECN-0101-2009-481-017571875