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- Title
Primary Study on the Resistance to Cladosporium cueumerinum of Cucumber Induced by Chito-oligosaccharide.
- Authors
XIE Ting-ting; LV Shu-xia; MA Di; ZHANG Liang; WANG Yuan-yuan
- Abstract
This article focused on the cucumber resistance to Cladosporium cueumerinum which was induced by chito-oligosaccharide. The state of illness of the cucumber seedlings induced by 6 mg/mL chito-oligosaccharide was investigated and the activities of major defense enzymes of phenylaknin ammo-nialyase (PAL), peroxidase (POD), polyphenol oxidase (PPO), superoxide dismutase (SOD), and catalase (CAT) were determined. The results showed that the induced resistance of cucumber scab by chito-oligosaccharide was 60.25% and 47.59% in 10 d and 17 d, respectively. The activity of PAL increased obviously and POD, PPO, SOD also increased partly, but chito-oligosaccharide had no effect on CAT. These researches suggested that resistance to cucumber C. cueumerinum induced by chito-oligosaccharide would be helpful in using chito-oligosaccharide as a new biological pesticide.
- Subjects
CUCUMBERS; CLADOSPORIUM; OLIGOSACCHARIDES; SEEDLINGS; SUPEROXIDE dismutase; ENZYME kinetics; CATALASE
- Publication
Natural Product Research & Development, 2011, Vol 23, Issue 3, p508
- ISSN
1001-6880
- Publication type
Article