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Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

Front. Agric. China    2008, Vol. 2 Issue (2) : 137-140    https://doi.org/10.1007/s11703-008-0025-3
Induction and mechanism of cucumber resistance to anthracnose induced by extract
TIAN Feifei1, ZHU Jiehua1, WANG Shutong1, ZHANG Weihong1, SUN Mingqing2, JIANG Jizhi3
1.College of Plant Protection, Agricultural University of Hebei; 2.Agricultural Techniques Extension Center of Shijiazhuang; 3.College of Life Science, Hebei University;
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Abstract Pieris rapae extract was sprayed on the surface of cucumber leaf to determine the induction of resistance to anthracnose. The enzyme activities of peroxidase (POD) and polyphenoloxidase (PPO) were detected on cucumber leaves after P. rapae extract induction and pathogen challenge. The results showed that the disease index of cucumber anthracnose was significantly decreased after the cucumber was induced with the P. rapae extract at a concentration of 5.0 mg·mL-1. The POD and PPO activities in foliar-applied P. rapae extract without pathogen inoculation (PETO) or with pathogen inoculation (PETI) were relatively higher than those with no-P. rapae extract treatment and without pathogen inoculation (CONO) or with pathogen inoculation (CONI), respectively. The results suggested that the increased levels of POD and PPO activities in PETO and PETI play an important role in the induction of resistance to cucumber anthracnose.
Issue Date: 05 June 2008
 Cite this article:   
TIAN Feifei,ZHU Jiehua,SUN Mingqing, et al. Induction and mechanism of cucumber resistance to anthracnose induced by extract[J]. Front. Agric. China, 2008, 2(2): 137-140.
 URL:  
https://academic.hep.com.cn/fag/EN/10.1007/s11703-008-0025-3
https://academic.hep.com.cn/fag/EN/Y2008/V2/I2/137
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