Abstract:

In order to explore the feasibility of using hydrophyte as monitor and remediation plant to herbicide pollution, the physiological characters of aqueous plant, Microsorium pteropus , under effect of anilofos at normal (30/25℃, day/night) and low temperature (15/7℃, day/night), was researched. Systematic determinations and analysis were carried out from the aspects of MDA content, the activities of POD, the activities of SOD and the activities of CAT. The result showed that under the stress of the kind of herbicide at normal, MDA, SOD, POD and CAT showed similar variation pattern, increasing followed decreasing. As a result of MDA, SOD, POD, CAT four variations of enzyme activity were associated with plant stress tolerance, therefore, under the stress of herbicide anilofos, the leaves of Microsorium pteropus were made positive response. Under the stress of law temperature, the activities of SOD, POD and CAT changed as similar as normal treatment, but the peak value were higher than those of normal treatment. Whereas MDA content appeared fluctuating under normal temperature, under low temperature, MDA content was not only higher than the normal treatment, but showing rising trend. The results showed that stress of low temperature and herbicide caused the more serious injury of Microsorium pteropus.