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	Sexual differences in cold acclimation and freezing tolerance development in sea buckthorn (hippophae rhamnoides l.) ecotypes
	Li, CY; Yang, YQ; Junttila, O; Palva, ET
刊名	Plant science
	2005-05-01
卷号	168期号:5页码:1365-1370
关键词	Abscisic acid Cold acclimation Dioecious species Freezing tolerance Hippophae rhamnoides Sex-specific physiology
ISSN号	0168-9452
DOI	10.1016/j.plantsci.2005.02.001
通讯作者	Li, cy(licy@cib.ac.cn)
英文摘要	Sexual differences in cold acclimation and freezing tolerance development of two contrasting sea buckthorn (hippophae rhamnoides l.) ecotypes from northern and southern regions in china were recorded after exposure to short day photoperiod (sd) and low temperature (lt). the results demonstrated that cold acclimation could be triggered by exposing the plants to sd or lt alone, and that a combination of both treatments had an additive effect on freezing tolerance in all plants tested. however, development of freezing tolerance was dependent on the sex of plants under sd and lt, the males were clearly more responsive to sd and lt than the females in both ecotypes studied. on the other hand, development of freezing tolerance was also ecotype-dependent, the northern ecotype was more responsive to sd and lt than the southern ecotype, resulting in earlier cold acclimation under sd and higher freezing tolerance under lt. moreover, development of freezing tolerance induced by sd and lt was accompanied by changes in aba levels. these alterations in aba levels were different in different treatments, ecotypes and sexes. therefore, the differences in sd and lt-induced physiological responses showed that the different ecotypes and the different sexes might employ different survival strategies under environmental stress. (c) 2005 elsevier ireland ltd. all rights reserved.
WOS关键词	CARBON-ISOTOPE DISCRIMINATION ; PLANT SILENE LATIFOLIA ; BETULA-PUBESCENS EHRH. ; DIOECIOUS PLANTS ; SEASONAL-CHANGES ; EVERGREEN PEACH ; SALIX-ARCTICA ; ACER-NEGUNDO ; GROWTH ; RESPONSES
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
WOS类目	Biochemistry & Molecular Biology ; Plant Sciences
语种	英语
出版者	ELSEVIER SCI IRELAND LTD
WOS记录号	WOS:000228528700024
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2377384
专题	中国科学院大学
通讯作者	Li, CY
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Univ Tromso, Dept Biol, N-9037 Tromso, Norway 4.Univ Helsinki, Dept Biol & Environm Sci, FIN-00014 Helsinki, Finland
推荐引用方式 GB/T 7714	Li, CY,Yang, YQ,Junttila, O,et al. Sexual differences in cold acclimation and freezing tolerance development in sea buckthorn (hippophae rhamnoides l.) ecotypes[J]. Plant science,2005,168(5):1365-1370.
APA	Li, CY,Yang, YQ,Junttila, O,&Palva, ET.(2005).Sexual differences in cold acclimation and freezing tolerance development in sea buckthorn (hippophae rhamnoides l.) ecotypes.Plant science,168(5),1365-1370.
MLA	Li, CY,et al."Sexual differences in cold acclimation and freezing tolerance development in sea buckthorn (hippophae rhamnoides l.) ecotypes".Plant science 168.5(2005):1365-1370.

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