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学科主题: 药学
题名:
Formation of archegonium chamber is associated with nucellar-cell programmed cell death in Ginkgo biloba
作者: Li, Da-Hui; Yang, Xiong; Cui, Ke-Ming
关键词: archegonium chamber ; calcium ion ; Ginkgo biloba ; nucellar cell ; programmed cell death
刊名: PROTOPLASMA
发表日期: 2007-10-01
DOI: 10.1007/s00709-007-0257-8
卷: 231, 期:3-4, 页:173-181
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Plant Sciences ; Cell Biology
研究领域[WOS]: Plant Sciences ; Cell Biology
关键词[WOS]: HYPERSENSITIVE RESPONSE ; APOPTOSIS ; CALCIUM ; MITOCHONDRIA ; SENESCENCE ; TOBACCO ; OVULE
英文摘要:

The archegonium chamber in Ginkgo biloba L. is a pathway for spermatozoids swimming towards the archegonium for fertilization. The objective of this study was to elucidate the mechanism of archegonium chamber formation. The terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay and DNA ladder demonstrated that the nucellar cell death, coordinated with the archegonium chamber formation, was a process of programmed cell death. Cytochemical localization of Ca2+ in these nucellar cells was determined by means of in situ precipitation with potassium pyroantimonate and electron microscopic visualization, in order to study the relation between Ca2+ and programmed cell death. The results showed an early uptake of the mitochondrial calcium particles in the nucellar cells undergoing programmed cell death. Together with other dynamic changes in Ca2+ subcellular distribution, this indicates that Ca2+ may play a role in the regulation of mitochondria-mediated programmed events in the nucellar cells.

语种: 英语
WOS记录号: WOS:000250066600007
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66017
Appears in Collections:北京大学药学院_期刊论文

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作者单位: 1.Peking Univ, Sch Pharmaceut Sci, Beijing 100083, Peoples R China
2.Peking Univ, Coll Life Sci, Beijing 100871, Peoples R China

Recommended Citation:
Li, Da-Hui,Yang, Xiong,Cui, Ke-Ming. Formation of archegonium chamber is associated with nucellar-cell programmed cell death in Ginkgo biloba[J]. PROTOPLASMA,2007,231(3-4):173-181.
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