Chemical profile and defensive function of the latex of Euphorbia peplus

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 植物化学与西部植物资源持续利用国家重点实验室

	Chemical profile and defensive function of the latex of Euphorbia peplus
	Hua, Juan 1,2,3; Liu, Yan 1,2; Xiao, Chao-Jiang 1,2,3; Jing, Shu-Xi 1,2; Luo, Shi-Hong 1,2; Li, Sheng-Hong1,2
刊名	PHYTOCHEMISTRY
	2017-04-01
卷号	136 页码:56-64
关键词	Euphorbia peplus Euphorbiaceae Latex Terpenoids Defensive function
英文摘要	Plant latex is an endogenous fluid secreted from highly specialized laticifer cells and has been suggested to act as a plant defense system. The chemical profile of the latex of Euphorbia peplus was investigated. A total of 13 terpenoids including two previously unknown diterpenoids, (2S,3S,4R,5R,6R,8R,l1R,13S,14S,15R, 16R)-5,8,15-triacetoxy-3-benzoyloxy-11,16-dihydroxy-9oxopepluane and (2R,3R, 4S,5R,7S,8S,9S,l3S,14S,15R)-2,5,8,9,14-pentaacetoxy-3-benzoyloxy15-hydroxy-7-isobutyroyloxyjatropha-6(17),11E-diene), ten known diterpenoids, and a known acyclic triterpene alcohol peplusol, were identified, using HPLC and UPLC-MS/MS analyses and through comparison with the authentic compounds isolated from the whole plant. The diterpenoids exhibited significant antifeedant activity against a generalist plant-feeding insect, the cotton bollworm (Helicoverpa armigera), with EC50 values ranging from 0.36 to 4.60 mu g/cm(2). In particular, (2R,3R,4S,5R,7S,8S,9S,l3S,14S,15R)-2,5,9,14-tetraacetoxy-3-benzoyloxy-8,15-dihydroxy-7- isobutyroyloxyjatropha-6(17),11E-diene and (2R,3R, 4S,5R,7S,8S,9S,l3S,14S,15R*)-2,5,14triacetoxy-3-benzoyloxy-8,15-dihydroxy-7-isobutyroyloxy-9-nicotinoyloxyjatropha-6(17),11E-diene had EC50 values of 0.36 and 0.43 mu g/cm(2), respectively, which were approximately 7-fold more potent than commercial neem oil (EC50 = 2.62 mu g/cm(2)). In addition, the major peplusol showed obvious antifungal activity against three strains of agricultural phytopathogenic fungi, Rhizoctonia solani, Colletotrichum litchi and Fusarium oxysporum f. sp. niveum. The results indicated that terpenoids in the latex of E. peplus are rich and highly diversified, and might function as constitutive defense metabolites against insect herbivores and pathogens for the plant. (C) 2016 Elsevier Ltd. All rights reserved.
类目[WOS]	Biochemistry & Molecular Biology ; Plant Sciences
研究领域[WOS]	Biochemistry & Molecular Biology ; Plant Sciences
关键词[WOS]	DITERPENES
收录类别	SCI
语种	英语
WOS记录号	WOS:000397354700007
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/51060]
专题	昆明植物研究所_植物化学与西部植物资源持续利用国家重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources West Ch, Kunming 650201, Peoples R China 2.Yunnan Key Lab Nat Med Chem, Kunming 650201, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hua, Juan,Liu, Yan,Xiao, Chao-Jiang,et al. Chemical profile and defensive function of the latex of Euphorbia peplus[J]. PHYTOCHEMISTRY,2017,136:56-64.
APA	Hua, Juan,Liu, Yan,Xiao, Chao-Jiang,Jing, Shu-Xi,Luo, Shi-Hong,&Li, Sheng-Hong.(2017).Chemical profile and defensive function of the latex of Euphorbia peplus.PHYTOCHEMISTRY,136,56-64.
MLA	Hua, Juan,et al."Chemical profile and defensive function of the latex of Euphorbia peplus".PHYTOCHEMISTRY 136(2017):56-64.