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题名: How membranes organize during seed germination: three patterns of dynamic lipid remodelling define chilling resistance and affect plastid biogenesis
作者: Yu, Xiaomei1, 2, 3; Li, Aihua3; null(李唯奇)1, 2
刊名: PLANT CELL AND ENVIRONMENT
出版日期: 2015-07-01
卷号: 38, 期号:7, 页码:1391-1403
关键词: Imbibitional chilling injury ; membrane lipid remodelling ; osmopriming ; phospholipase D
学科分类: Plant Sciences
DOI: 10.1111/pce.12494
通讯作者: Li,WQ (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650201,Peoples R China. ; weiqili@mail.kib.ac.cn
文章类型: Article
英文摘要: Imbibitional chilling injury during germination causes agricultural losses, but this can be overcome by osmopriming. It remains unknown how membranes reorganize during germination. Herein, we comparatively profiled changes of membrane lipids during imbibition under normal and chilling temperatures in chilling-tolerant and -sensitive soybean seeds. We found three patterns of dynamic lipid remodelling during the three phases of germination. Pattern 1 involved a gradual increase in plastidic lipids during phases I and II, with an abrupt increase during phase III. This abrupt increase was associated with initiation of photosynthesis. Pattern 3 involved phosphatidic acid (PA) first decreasing, then increasing, and finally decreasing to a low level. Patterns 1 and 3 were interrupted in chilling-sensitive seeds under low temperature, which lead a block in plastid biogenesis and accumulation of harmful PA, respectively. However, they were rescued and returned to their status under normal temperature after polyethylene glycol osmopriming. We specifically inhibited phospholipase D (PLD)-mediated PA formation in chilling-sensitive seeds of soybean, cucumber, and pea, and found their germination under low temperature was significantly improved. These results indicate that membranes undergo specific and functional reorganization of lipid composition during germination and demonstrate that PLD-mediated PA causes imibibitional chilling injury.
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
关键词[WOS]: SOYBEAN SEEDS ; ARABIDOPSIS-THALIANA ; N-ACYLETHANOLAMINES ; PROTEOMIC ANALYSIS ; STRESS ; IMBIBITION ; TEMPERATURE ; SENSITIVITY ; METABOLISM ; MOISTURE
收录类别: SCI
项目资助者: National Natural Science Foundation of China [30670471, 30870571] ; Kunming Institute of Botany [KSCX2-EW-J-24] ; Germplasm Bank of Wild Species ; CAS Innovation Program of Kunming Institute [540806321211] ; CAS ; National Science Foundation [EPS 0236913, MCB 0920663, DBI 0521587, DBI1228622] ; K-IDeA Networks of Biomedical Research Excellence (INBRE) of National Institute of Health [P20GM103418]
语种: 英语
WOS记录号: WOS:000355757200015
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/21359
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 Biodivers & Biogeog, Kunming 650201, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Plant Germplasm & Genom Ctr, Kunming 650201, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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