Acquired tolerance to cadmium following long-term acclimation to CdCl2 in rice suspension cultures

doi:10.1007/s11240-015-0873-5

CORC > 武汉植物园 > 中国科学院武汉植物园

	Acquired tolerance to cadmium following long-term acclimation to CdCl2 in rice suspension cultures
	Ding, Meng 2; Li, Yangsheng 2; Wang, Xin 1,2
刊名	PLANT CELL TISSUE AND ORGAN CULTURE
	2016
卷号	124 期号:1 页码:47-55
关键词	Antioxidant enzyme Heavy metal Hydrogen peroxide Oxidative stress Oryza sativa L. ROS
ISSN号	0167-6857
DOI	10.1007/s11240-015-0873-5
英文摘要	Little is known concerning the long-term effects of cadmium (Cd) on plants. Here, rice (Oryza sativa L.) suspension cultures acquired tolerance to Cd toxicity after treated with 250 mu M CdCl2 for 1 month, ensued with 300 mu M CdCl2 for 18 months (acclimation). The tolerance was found associated with enhanced antioxidative capacity. The activities of superoxide dismutase, catalase and guaiacol peroxidase in acclimated cells were 1.58-, 3.16- and 11.24-fold respectively higher than that in non-acclimated cells when these cells were exposed to 300 mu M CdCl2 for 4 days. Cd disturbed the homeostasis of ascorbate-dehydroascorbate (ASC-DHA) buffer system in the non-acclimated cells indicated by a sharp decrease in the ASC contents, whilst the ASC-DHA system was not affected in the acclimated cells. The acclimation also blocked the burst of hydrogen peroxide (H2O2) observed in the non-acclimated cells under Cd stress and conferred rice cells tolerance to H2O2 in vitro. To our knowledge, this is the first report of long-term effects of Cd on cell suspensions. This culture system may be further used to study the stress resistance breeding of crops.
资助项目	Chinese Ministry of Education[313039] ; Specialized Research Fund for the Doctoral Program of Higher Education[20130141110069] ; National Program of Transgenic Variety Development of China[2011ZX08001-001] ; National Program of Transgenic Variety Development of China[2011ZX08001-004] ; National Natural Science Foundation of China[31300227]
WOS研究方向	Biotechnology & Applied Microbiology ; Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000369947400004
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/152]
专题	中国科学院武汉植物园
通讯作者	Li, Yangsheng
作者单位	1.Chinese Acad Sci, CAS Key Lab Plant Germplasm Enhancement & Special, Wuhan Bot Garden, Wuhan, Peoples R China 2.Wuhan Univ, State Key Lab Hybrid Rice, Coll Life Sci, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Ding, Meng,Li, Yangsheng,Wang, Xin. Acquired tolerance to cadmium following long-term acclimation to CdCl2 in rice suspension cultures[J]. PLANT CELL TISSUE AND ORGAN CULTURE,2016,124(1):47-55.
APA	Ding, Meng,Li, Yangsheng,&Wang, Xin.(2016).Acquired tolerance to cadmium following long-term acclimation to CdCl2 in rice suspension cultures.PLANT CELL TISSUE AND ORGAN CULTURE,124(1),47-55.
MLA	Ding, Meng,et al."Acquired tolerance to cadmium following long-term acclimation to CdCl2 in rice suspension cultures".PLANT CELL TISSUE AND ORGAN CULTURE 124.1(2016):47-55.