|Table of Contents|

Effect of Cadmium Stress on Physiological and Biochemical and Enrichment Characteristics(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年10期
Page:
72-76
Research Field:
Publishing date:

Info

Title:
Effect of Cadmium Stress on Physiological and Biochemical and Enrichment Characteristics
Author(s):
LI Yan-zi1; ZHAO Yun-lin2; DONG Meng2; DAI Mei-bin3; YI He-cheng3; HU Zhi-yuan4
1.College of Biology and Technology，Hunan Agricultural University，Changsha，Hunan 410128；2.Department of Chemistry and Environment Engineering，Hunan City University，Yiyang，Hunan 413000；
3.Administration Bureau of South Dongting Lake Nature Reserve，Yiyang，Hunan 411000；
4.College of Food and Technology，Hunan Agricultural University，Changsha，Hunan 410128
Keywords:
Artemisia selengensis; Cd; physiological and biochemical; enrichment characteristics
PACS:
X 53；Q 948.116
DOI:
-
Abstract:
Acquisition of the South Dongting Lake and the dominant plant（Artemisia selengensis Turcz）and rhizosphere soil，for different concentrations of Cd stress treatment，Cd on some physiological indices of Artemisia selengensis and Cd accumulation of the Artemisia selengensis were studied.The results showed that low Cd concentrations (<15 mg/kg) stress could promote plant growth and enhance its biological activities,high concentrations of Cd(>50 mg/kg)stress on Artemisia selengensisinlaibited the produce obviously，when the Cd concentration reached 70 mg/kg，the Artemisia selengensis could still complete the normal growth cycle.With the increasing concentration of Cd treatment,the body of Artemisia selengensis chlorophyll content gradually decreased，malondialdehyde(MDA)content increased，increased in 70 mg/kg with the maximum.Soluble sugar and soluble protein content gradually increased and then showed a downward trend.Artemisia selengensis body each organ of Cd accumulation levels of stress with increasing concentration of Cd increased significantly，in the 90 mg/kgconditions，the root of the content was 910.66 mg/kg，stems and leaves were 375.92 and 134.62 mg/kg.Stress concentration in the Cd<70 mg/kg treatment，the various parts of Artemisia selengensis increase of Cd concentration rapidly，Cd>70 mg/kg increased slowly.Each treatment concentration，the average Artemisia selengensis roots transfer codfficient was 0.85.Artemisia selengensis had a high concentration of Cd and tolerance，was the ideal plant for repairing Cd-contaminated plants.

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Last Update: 2014-09-04