%0 Journal Article
%T Dynamics of soil phenols in continuous cropping solar greenhouse and their effects on disease resistance-related enzyme activities in cucumber root<br>日光温室连作土壤酚类物质变化及其对黄瓜根系
%A MA Yunhua
%A WEI Min
%A WANG Xiufeng
%A <br>马云华
%J 应用生态学报
%D 2005
%I 
%X The study showed that under solar greenhouse condition, the contents of soil p-hydroxybenzoic acid, ferulic acid and benzoic acid and their total amounts increased with increasing continuous cropping years, and were obviously higher after continuously cropped for 5, 7 and 9 years than for 1 and 3 years. Different concentration of soil phenols resulted in completely different effects on disease resistance-related enzyme activities in cucumber root, e. g., under lower concentrations (40 and 80 microg x g(-1)), the activities of phenylalanine (PAL), ployphenol oxidase (PPO) and peroxidase (POD) were increased, while under higher levels (120 and 160 microg x g(-1)), they were restrained. Therefore, the changes of soil phenol contents in continuous cropping solar greenhouse could be one of the essential factors affecting the disease-resistance of cucumber.
%K Solar greenhouse
%K Continuous cropping
%K Phenols
%K Cucumber
%K Disease-related resistance<br>日光温室
%K 连作
%K 酚类物质
%K 黄瓜
%K 抗病性相关酶
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=79DE95F8D6552AB2&yid=2DD7160C83D0ACED&vid=7801E6FC5AE9020C&iid=CA4FD0336C81A37A&sid=9C65ADEB5990B252&eid=0D0D661F0B316AD5&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=12&reference_num=17