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	Fungal elicitor induces singlet oxygen generation, ethylene release and saponin synthesis in cultured cells of panax ginseng c. a. meyer
	Xu, XJ; Hu, XY; Neill, SJ; Fang, JY; Cai, WM
刊名	Plant and cell physiology
	2005-06-01
卷号	46期号:6页码:947-954
关键词	Colletolrichum lagenarium Ethylene Panax ginseng Saponin Singlet oxygen
ISSN号	0032-0781
DOI	10.1093/pcp/pci103
通讯作者	Cai, wm()
英文摘要	Singlet oxygen is a high-energy molecular oxygen species. as one of the most active intermediates involved in chemical and biochemical reactions, singlet oxygen plays essential roles in plant responses to uv and strong light. here, we report that cle, an elicitor derived from fungal cell walls, induces the generation of singlet oxygen in cell cultures of ginseng, panax ginseng. cle treatment also triggers the activation of plasma membrane nadph oxidase and 1-aminocyclopropane-1-carboxylic acid oxidase (aco), subsequently leading to ethylene release and increased saponin synthesis, as shown by increased mrna expression of squalene synthase (sqs) and squalene epoxidase (sqe), and accumulation of beta-amyrin synthase (beta-as). suppression of cle-induced singlet oxygen generation or inhibition of ethylene production blocks saponin synthesis, whereas treatment of ginseng cells with ethylene or singlet oxygen induces the synthesis of saponin. together, these results indicate that cle-induced production of both singlet oxygen and ethylene is required for saponin synthesis, and that singlet oxygen may function upstream of ethylene during cle-induced saponin synthesis.
WOS关键词	STRESS RESPONSES ; ARABIDOPSIS-THALIANA ; SIGNAL-TRANSDUCTION ; HYDROGEN-PEROXIDE ; OXIDATIVE STRESS ; HIGHER-PLANTS ; ROSE-BENGAL ; BIOSYNTHESIS ; INACTIVATION ; SUPEROXIDE
WOS研究方向	Plant Sciences ; Cell Biology
WOS类目	Plant Sciences ; Cell Biology
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000230090400014
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2377931
专题	中国科学院大学
通讯作者	Cai, WM
作者单位	1.Chinese Acad Sci, Shanghai Inst Biol Sci, Grad Sch, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China 2.Univ W England, Ctr Res Plant Sci, Bristol BS16 1QY, Avon, England
推荐引用方式 GB/T 7714	Xu, XJ,Hu, XY,Neill, SJ,et al. Fungal elicitor induces singlet oxygen generation, ethylene release and saponin synthesis in cultured cells of panax ginseng c. a. meyer[J]. Plant and cell physiology,2005,46(6):947-954.
APA	Xu, XJ,Hu, XY,Neill, SJ,Fang, JY,&Cai, WM.(2005).Fungal elicitor induces singlet oxygen generation, ethylene release and saponin synthesis in cultured cells of panax ginseng c. a. meyer.Plant and cell physiology,46(6),947-954.
MLA	Xu, XJ,et al."Fungal elicitor induces singlet oxygen generation, ethylene release and saponin synthesis in cultured cells of panax ginseng c. a. meyer".Plant and cell physiology 46.6(2005):947-954.

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