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	A novel system for evaluating drought–cold tolerance of grapevines using chlorophyll fluorescence
	Su,Lingye1,2; Dai,Zhanwu3; Li,Shaohua1,4; Xin,Haiping4
刊名	Bmc plant biology
	2015-03-11
卷号	15期号:1
关键词	Drought–cold stress Electrolyte leakage Fv/fm Grapevine Lt50
ISSN号	1471-2229
DOI	10.1186/s12870-015-0459-8
通讯作者	Li,shaohua(shhli@ibcas.ac.cn) ; Xin,haiping(xinhaiping215@hotmail.com)
英文摘要	Abstractbackgroundgrape production in continental climatic regions suffers from the combination of drought and cold stresses during winter. developing a reliable system to simulate combined drought–cold stress and to determine physiological responses and regulatory mechanisms is important. evaluating tolerance to combined stress at germplasm level is crucial to select parents for breeding grapevines.resultsin the present study, two species, namely, vitis amurensis and v. vinifera cv. ‘muscat hamburg’, were used to develop a reliable system for evaluating their tolerance to drought–cold stress. this system used tissue ?cultured grapevine plants, 6% peg solution, and gradient cooling mode to simulate drought–cold stress. v. amurensis had a significantly lower lt50 value (the temperature of 50% electrolyte leakage) than ‘muscat hamburg’ during simulated drought–cold stress. thus, the former had higher tolerance than the latter to drought–cold stress based on electrolyte leakage (el) measurements. moreover, the chlorophyll fluorescence responses of v. amurensis and ‘muscat hamburg’ were also analyzed under drought–cold stress. the maximum photochemical quantum yield of ps ii (fv/fm) exhibited a significant linear correlationship with el. the relationship of el with fv/fm in the other four genotypes of grapevines under drought–cold stress was also detected.conclusionsa novel lt50 estimation model was established, and the lt50 values can be well calculated based on fv/fm in replacement of el measurement. the fv/fm–based model exhibits good reliability for evaluating the tolerance of different grapevine genotypes to drought–cold stress.
语种	英语
出版者	BioMed Central
WOS记录号	BMC:10.1186/S12870-015-0459-8
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374315
专题	中国科学院大学
通讯作者	Li,Shaohua; Xin,Haiping
作者单位	1.Institute of Botany, Chinese Academy of Sciences; Beijing Key Laboratory of Grape Sciences and Enology and CAS Key Laboratory of Plant Resources 2.University of Chinese Academy of Sciences 3.INRA, Institut des Sciences de la Vigne et du Vin, UMR 1287 Ecophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) 4.Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Su,Lingye,Dai,Zhanwu,Li,Shaohua,et al. A novel system for evaluating drought–cold tolerance of grapevines using chlorophyll fluorescence[J]. Bmc plant biology,2015,15(1).
APA	Su,Lingye,Dai,Zhanwu,Li,Shaohua,&Xin,Haiping.(2015).A novel system for evaluating drought–cold tolerance of grapevines using chlorophyll fluorescence.Bmc plant biology,15(1).
MLA	Su,Lingye,et al."A novel system for evaluating drought–cold tolerance of grapevines using chlorophyll fluorescence".Bmc plant biology 15.1(2015).

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