QQ客服 官方微博 反馈留言

	Association of the cold-hardiness of Chorispora bungeana with the distribution and accumulation of calcium in the cells and tissues
	Fu, XY; Chang, JF; An, LZ; Zhang, MX; Xu, SJ; Chen, T; Liu, YH; Xin, H; Wang, JH
刊名	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
	2006-03-01
卷号	55期号:3页码:282-293
关键词	calcium distribution accumulation cold-hardiness chilling induction
ISSN号	0098-8472
DOI	10.1016/j.envexpbot.2004.11.009
通讯作者	An, LZ()
英文摘要	Chorispora bungeana Fisch. & C.A. Mey (Chorispora bungeana) is a rare alpine subnival plant species that is highly capable of resisting freezing environment. In this paper, we attempted to explore a possible mechanism of its adaptation to the alpine subnival environment. The results of Ca2+ level measured by energy-dispersive X-ray detector (EDS) showed that the Ca2+ content in the wild species was higher than that of regenerated plants, and chilling induction at 0 degrees C could increase Ca2+ contents in the regenerated plants. Further, the distribution and accumulation of Ca2+ in tissues was investigated by X-ray micro-domains analysis with scanning electron microscope (SEM), the results showed that Ca2+ levels were different in various tissues and organs of the wild species. However, Ca2+ levels did not show significant difference among tested tissues of the regenerated plants. Laser-scanning confocal microscopy (LSCM) revealed that, after 10th day of the chilling induction at 0 degrees C, the free Ca2+ levels increased in the mesophyll protoplasts from the regenerated plants. In addition, the results of electric conductivity (EC) suggested that the chilling induction initially affected the permeability of cellular membrane, and it was restored to stable level with extending treatment. The mitochondria of the cells also maintained its normal function after the chilling induction by Rhodamine-123 detection. Taken together, the membrane remained its integrity and its mitochondria was functional at the condition of the chilling induction, which was essentially the requirement for alive cells as well as its whole entire plants. These findings suggested that distribution and accumulation of Ca2+ connected with the cold-hardiness of C bungeana were different among the various tissues and organs in the wild species. Also, these results demonstrated that the difference in Ca2' distribution was a response of C bungeana in adapting itself to the alpine subnival environment and the accumulation of Ca2+ could play an important role in its active cold-hardiness. (c) 2004 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	ACCLIMATION-SPECIFIC GENES ; AIR-POLLUTION DAMAGE ; CHILLING INJURY ; SIGNAL-TRANSDUCTION ; FREEZING TOLERANCE ; PLANT-CELLS ; LICHENS ; MAIZE ; PHOSPHORYLATION ; MEMBRANES
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
WOS类目	Plant Sciences ; Environmental Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000234704000007
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555795
专题	寒区旱区环境与工程研究所
通讯作者	An, LZ
作者单位	1.Lanzhou Univ, CAS, Cold & Arid Reg Environm & Engn Res Inst, Sch Life Sci, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Fundamental Med, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Sch Life Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Fu, XY,Chang, JF,An, LZ,et al. Association of the cold-hardiness of Chorispora bungeana with the distribution and accumulation of calcium in the cells and tissues[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2006,55(3):282-293.
APA	Fu, XY.,Chang, JF.,An, LZ.,Zhang, MX.,Xu, SJ.,...&Wang, JH.(2006).Association of the cold-hardiness of Chorispora bungeana with the distribution and accumulation of calcium in the cells and tissues.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,55(3),282-293.
MLA	Fu, XY,et al."Association of the cold-hardiness of Chorispora bungeana with the distribution and accumulation of calcium in the cells and tissues".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 55.3(2006):282-293.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。