We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
腐片镰刀菌醇提取物与苯并噻二唑诱导水稻对抗稻瘟病相关酶活性的比较
- Authors
王红; 杨涛; 杨镇; 肇莹; 陈珣; 曹君; 李跃; 马晓颖; 肖 军
- Abstract
【Objective】The present experiment was conducted to investigate effect of biological and chemical pesticides on rice blast resistance-related enzyme activity, in order to provide theoretical basis for development of safe and green bio-pesticides. 【Method】The microbial pesticide(Fusarium solani secondary metabolite, WS), chemical pesticide(benzothiadiazole, BTH) and distilled water(blank control, CK1 and positive control, CK2) was sprayed on rice at the growth stage of three leaves and one heart. Then the resistance-related enzyme activity and resistance to rice blast were determi-nated after being externally inoculated with rice blast pathogen. 【Result】In 0-9 days after being externally inoculated with rice blast pathogen, the activities of phenylalanine ammonia-lyase(PAL), peroxidase(POD), and polyphenol oxidase(PPO) in the rice treated by WS, and activities of PAL and POD in the rice treated by BTH were higher than those in CK2. BTH treatment had better improving effects on PAL activity than WS treatment, but WS treatment had better continuous improving effects on PPO activity than BTH treatment. In the early stage of WS and BTH treatments(0-3 days),the catalase(CAT) activity could be improved, but in the late stage, the CAT activity in the leaves was lower than that of CK2. Moreover, each treatment couldn't change obviously cinnamyl-alcohol dehydrogenase(CAD) activity after inoculation. And the rate of diseased plant, number of lesions, disease index were all decreased after WS and BTH treatments.The disease index of rice treated by WS was significantly lower than that of CK(P0.01), and the induced-resistance effect of WS was up to 56.21%, which was 14.78% higher than that of BTH(absolute value). 【Conclusion】WS and BTH have a certain induced effects on rice blast-resistance, but induced effect of WS is superior to that of BTH.
- Subjects
RICE blast disease prevention; FUSARIUM solani; THIADIAZOLES
- Publication
Journal of Southern Agriculture, 2016, Vol 47, Issue 1, p24
- ISSN
2095-1191
- Publication type
Article
- DOI
10.3969/j.issn.2095-1191.2016.01.24