|Table of Contents|

Effect of Cr (Ⅵ) Stress on Physiological and Biochemical Characters of Acorus calamus (PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年03期
Page:
54-59
Research Field:
Publishing date:

Info

Title:
Effect of Cr (Ⅵ) Stress on Physiological and Biochemical Characters of Acorus calamus
Author(s):
ZHU Si-xi1; WANG Feng-you1; LIU Dong2; YANG Xiu-qin1; ZHANG Jian-min3; WU Yun-jie1
1.College of Chemistry and Environmental Science，Guizhou Minzu University，Guiyang，Guizhou 550025；
2.Nanjing Environmental Science Research Institute，Environmental Protection Department，Nanjing，Jiangsu 210042；
3.Guiyang Investigation and Design Institute, Guizhou Province,Hydrochina Guiyang Engineering Corporation，Guiyang，Guizhou 550081
Keywords:
Cr(Ⅵ) stress; Acorus calamus; physiology and biochemistry; constructed wetlands; environmental remediation
PACS:
S 564+.3
DOI:
-
Abstract:
Taking Acorus calamus plants with the same of activity and size as materisl，effect of Cr (Ⅵ) stress (0，5，10，20，40，60 mg/L) on the physiological and biochemical index (such as TTC，chlorophyll content，vitamin C content，Proline content，MDA content，SOD activity，POD activity，CAT activity and PAL activity) of Acorus calamus were studied in order to provide theoretic foundation for phytoremediation of Cr contaminated waters.The results showed that chlorophyll contents increased in the leaves of Acorus calamus under lower Cr (Ⅵ) stress (5，10，20 mg/L)，while decreased significantly under higher Cr (Ⅵ) stress (40，60 mg/L).With Cr (Ⅵ) stress deepen，soluble protein content increased significantly，while soluble sugar content was decreasing as a whole,and the contents of Proline，TTC，GSH and MDA firstly increasing and then decreased with the increasing of Cr (Ⅵ) stress.And superoxide free radical contents firstly decreased and then increased，while Vitamin C content decreased under Cr (Ⅵ) stress.For antioxidant enzyme activity，SOD activity and PAL activity firstly increased and then decreased with the increasing of Cr concentrations，while CAT activity and POD activity increased significantly.Therefore，it could be concluded that Acorus calamus could adapt the certain concentration of Cr stress and make corresponding adjustments.Then Acorus calamus had a good adaptability and pollution resistance ability to Cr (Ⅵ) stress，which was an excellent constructed wetland plant in the treatments of Cr wastewaters.

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Last Update: 2014-08-21