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题名: Membrane Lipid Remodelling of Meconopsis racemosa after Its Introduction into Lowlands from an Alpine Environment
作者: Zheng, Guowei1, 3; Tian, Bo2; null(李唯奇)1, 3
刊名: PLOS ONE
关键词: ARABIDOPSIS-THALIANA ; PHOSPHATE DEPRIVATION ; FATTY-ACIDS ; SEED PLANTS ; TEMPERATURE ; ADAPTATION ; TOLERANCE ; GALACTOLIPIDS ; DOMESTICATION ; ACCLIMATION
英文摘要: Membrane lipids, which determine the integrity and fluidity of membranes, are sensitive to environmental changes. The influence of stresses, such as cold and phosphorus deficiency, on lipid metabolism is well established. However, little is known about how plant lipid profiles change in response to environmental changes during introduction, especially when plants are transferred from extreme conditions to moderate ones. Using a lipidomics approach, we profiled the changes in glycerolipid molecules upon the introduction of the alpine ornamental species Meconopsis racemosa from the alpine region of Northwest Yunnan to the lowlands of Kunming, China. We found that the ratios of digalactosyldiacylglycerol/monogalactosyldiacylglycerol (DGDG/MGDG) and phosphatidylcholine/phosphatidylethanolamine (PC/PE) remained unchanged. Introduction of M. racemosa from an alpine environment to a lowland environment results in two major effects. The first is a decline in the level of plastidic lipids, especially galactolipids. The second, which concerns a decrease of the double-bond index (DBI) and could make the membrane more gel-like, is a response to high temperatures. Changes in the lipidome after M. racemosa was introduced to a lowland environment were the reverse of those that occur when plants are exposed to phosphorus deficiency or cold stress.
出版日期: 2014-09-03
卷号: 9, 期号:9, 页码:e106614
DOI标识: 10.1371/journal.pone.0106614
语种: 英语
ISSN号: 1932-6203
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18431
Appears in Collections:中国西南野生生物种质资源库_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming, Yunnan, Peoples R China
2.Chinese Acad Sci, Key Lab Trop Plant Resource & Sustainable Use, Xishuangbanna Trop Bot Garden, Kunming, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genom Ctr, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China

Recommended Citation:
Zheng,Guowei;Tian,Bo;Li,Weiqi.Membrane Lipid Remodelling of Meconopsis racemosa after Its Introduction into Lowlands from an Alpine Environment,PLOS ONE,2014,9(9):e106614
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