文章基本信息

标题：H 2 O 2 Distribution and its Relationship with Antioxidant Enzymes during Germination in Dianthus Chinensis L. under Long-Term Salt Stress
本地全文：下载
作者：Xue-qin He ; Hui Jia ; Xi-long Hao 等
期刊名称：Advance Journal of Food Science and Technology
印刷版ISSN：2042-4868
电子版ISSN：2042-4876
出版年度：2012
卷号：4
期号：5
页码：294-298
出版社：MAXWELL Science Publication
摘要：Dianthus chinensis L. is a very ornamental plant and widely used in landscaping. It can be tolerant to some level of salt stress. In order to study H₂O₂ distribution and activities of antioxidant enzymes under salt stress, seeds of Dianthus chinensis L. were treated with different NaCl concentrations. The results suggested that H₂O₂ initially produced in root and then transferred to leaf via stem xylem and leaf vein during seed germination under long-term salt stress. Same phenomena were observed in seedlings under short-term salt stress. However, the distribution varied with time under different NaCl. H₂O₂ was quickly scavenged with 100 mM NaCl. POD and CAT obviously dropped, as well as SOD significantly rose under NaCl. In the meantime, APX and GR seemed to be no associated with salt stress.
关键词：Antioxidant enzymes ; Dianthus chinensis L. ; H₂O₂ balance ; H₂O₂ distribution ; salt stress ;