| Study on relationship between Pb chemical forms and enzyme activity in Brassica Chinensis |
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| DOI：10.7606/j.issn.1000-7601.2010.05.25 |
| Key Words: Brassica Chinensis Pb chemical form plant enzyme activity |
| Author Name | Affiliation | | YIN Xianqiang | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China | | WANG Changzhao | Shaanxi Entry-Exit Inspection and Quarantine Bureau, Xi'an, Shaanxi 710068, China | | YI Lei | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China | | LIU Yongxuan | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China | | WANG Guodong | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China | | ZHANG Xinchang | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
Northwest A&F University/Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resource, Yangling, Shaanxi 712100, China |
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| Abstract: |
| This study investigated the Pb chemical forms distribution and the effect of Pb forms on plant enzyme activity of Brassica Chinensis indoor cultivated with added Pb in loessal soil. The result showed that the Pb concentration of differenct forms in shoot/leaf of Brassica Chinensis increased significantly and extremely significantly, and all Pb forms in root extremely significantly increased with Pb increasing after the soil was polluted by Pb. The acativity of Pb in Brassica Chinensis increased after the soil was polluted by Pb. In order to erase the hazards of Pb to Brassica Chinensis, the activity of polyphenol oxida
se and catalase increase significantly, which also can indicate the hazards of Pb to plant. Among all Pb forms HAc-extractable Pb and HCl-extractable Pb was the dominant harmful forms to the protection enzyme system in Brassica Chinensis. |
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