Reduction of hyperhydricity in the culture of Lepidium meyenii shoots by the addition of rare earth elements

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	Reduction of hyperhydricity in the culture of Lepidium meyenii shoots by the addition of rare earth elements
	Wang, Ya-Li ; Wang, Xiao-Dong ; Zhao, Bing ; Wang, Yu-Chun
刊名	PLANT GROWTH REGULATION
	2007-06-01
卷号	52 期号:2 页码:151-159
关键词	adventitious shoots antioxidative enzymes hyperhydricity Maca (Lepidium meyenii) rare earth elements
ISSN号	0167-6903
其他题名	Plant Growth Regul.
中文摘要	Adventitious shoots induced from maca calli on induction media without rare earth elements (REE) had higher water content and lower soluble protein concentration when compared with shoots sprouted from maca seeds. Due to lower activities of antioxidative enzymes, there were higher concentrations of H2O2 and malonyldialdehyde (MDA) in adventitious shoots than those in seed shoots. When La3+, Ce3+ and Nd3+ (0.04 mM to 0.1 mM) were added to induction media, induction rates of the adventitious shoots were only affected slightly, but hyperhydricity rates were significantly reduced. La3+, Ce3+ or Nd3+ enhanced the activities of antioxidative enzymes in adventitious shoots, e.g. peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), superoxide dismutase (SOD), monodehydroascorbate reductase (MDHAR) and glutathione reductase (GR). When the concentrations of La3+, Ce3+ and Nd3+ were 0.1 mM, the oxygen stress in adventitious shoots was decreased to levels similar to seed shoots, where most adventitious shoots grew normally.
英文摘要	Adventitious shoots induced from maca calli on induction media without rare earth elements (REE) had higher water content and lower soluble protein concentration when compared with shoots sprouted from maca seeds. Due to lower activities of antioxidative enzymes, there were higher concentrations of H2O2 and malonyldialdehyde (MDA) in adventitious shoots than those in seed shoots. When La3+, Ce3+ and Nd3+ (0.04 mM to 0.1 mM) were added to induction media, induction rates of the adventitious shoots were only affected slightly, but hyperhydricity rates were significantly reduced. La3+, Ce3+ or Nd3+ enhanced the activities of antioxidative enzymes in adventitious shoots, e.g. peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), superoxide dismutase (SOD), monodehydroascorbate reductase (MDHAR) and glutathione reductase (GR). When the concentrations of La3+, Ce3+ and Nd3+ were 0.1 mM, the oxygen stress in adventitious shoots was decreased to levels similar to seed shoots, where most adventitious shoots grew normally.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Plant Sciences
研究领域[WOS]	Plant Sciences
关键词[WOS]	OXIDATIVE STRESS ; LIPID-PEROXIDATION ; GROWTH ; LEAVES ; MACA ; REGENERATION ; TOLERANT ; EXTRACT ; PLANTS
收录类别	SCI
原文出处	://WOS:000247259500006
语种	英语
WOS记录号	WOS:000247259500006
公开日期	2013-10-15
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/3465]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ya-Li,Wang, Xiao-Dong,Zhao, Bing,et al. Reduction of hyperhydricity in the culture of Lepidium meyenii shoots by the addition of rare earth elements[J]. PLANT GROWTH REGULATION,2007,52(2):151-159.
APA	Wang, Ya-Li,Wang, Xiao-Dong,Zhao, Bing,&Wang, Yu-Chun.(2007).Reduction of hyperhydricity in the culture of Lepidium meyenii shoots by the addition of rare earth elements.PLANT GROWTH REGULATION,52(2),151-159.
MLA	Wang, Ya-Li,et al."Reduction of hyperhydricity in the culture of Lepidium meyenii shoots by the addition of rare earth elements".PLANT GROWTH REGULATION 52.2(2007):151-159.