Title: Effects of Meloidogyne Incognita Infection on Activities of Protective Enzymesin Greenhouse Tomato
Abstract: Under the infection by Meloidogyne incognita,continuous activity changes of several protective enzymes in tomato leaves were studied.Results showed that after Meloidogyne incognita infecting,the activities of phenylalanine ammonia lyase(PAL) was much lower than that of non-inoculated,and the lower level remained continuously for 7 days till it recovered.Again,the activity was below the level of the control in 15th day’s samples,and this trend continued for 30 days after infection till the second complete recovery.The Meloidogyne incognita infecting had no significant effect on the activities of polyphenol oxidase(PPO).The activities of superoxide dismutase(SOD) declined in the 1-7 d after inoculated by nematode and its recovery continued to the 30 d.The study found that only peroxidase(POD) activity in the 1-23 d was significantly higher than that of the control level.Therefore,the activity of POD may be used as an early indicator to judge whether the tomato is infected by root-knot nematode.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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