芹菜根对模拟复合污染湿地中芘的降解作用

doi:10.3969/j.issn.1007-2861.2013.04.007

Abstract

Abstract: This paper studies combined polluted wetland soils in Wusong estuary. Celery root with efficient degradation effect for pyrene was selected in combined pollution soil with pyrene, Pb and diesel in simulated wetland environment. The bioremediation effects and characteristics of the combined polluted wetland soil with
celery root were studied by simulation. The degradation effect on single and combined pollutants in the soil with polyphenol oxidase (PPO), catalase (CAT), urease (URE) and pyrene in different experimental groups with variation at different time were analyzed. It has been shown that celery root can improve the degradation effect of pyrene in the soil under pyrene, Pb and diesel combined pollution stress by secreting enzymes and some chemical substances. Celery root may secrete a variety of enzymes by stimulating rhizosphere microbial cells as well. It would improve activity of rhizosphere microorganisms in the soil and promote microbial synergy between celery root and its rhizosphere microorganisms. The degradation effects of pyrene in combined pollution can
also be enhanced.

Key words: celery root, combined pollution, degradation effect, enzyme, pyrene

CLC Number:

X 53

WANG Qian, LIU Xiao-yan, WEI Jing, LI Hong-bing, LI Xin, HUANG Yi-ning, XIA Jing. Pyrene Degradation Effect with Celery Root in Combined Pollution Soil in Simulated Wetland[J]. Journal of Shanghai University（Natural Science Edition）, 2013, 19(4): 363-367.

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Pyrene Degradation Effect with Celery Root in Combined Pollution Soil in Simulated Wetland

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