A new model of phycobilisome in Spirulina platensis

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	A new model of phycobilisome in Spirulina platensis
	Zhang, YZ ; Chen, XL ; Zhou, BC ; Zeng, CK ; Liu, J ; Shi, DX ; Pang, SJ
	1999-02-01
发表期刊	SCIENCE IN CHINA SERIES C-LIFE SCIENCES
ISSN	1006-9305
卷号	42 期号:1 页码:74-79
文章类型	Article
摘要	Phycobilisomes (PBS) were isolated from blue-green alga Spirulina platensis. Scanning tunneling microscope was used to investigate the three-dimensional structure of PBS deposited on freshly cleaved highly oriented pyrolytic graphite (HOPG) in ambient condition at room temperature. The results showed that the rods of PBS radiated from the core to different directions in the space other than arrayed in one plane, which was different from the typical hemi-discoidal model structure. The diameter of PBS was up to 70 nm, and the rod was approximately 50 nm in length. Similar results were observed in Langmuir-Blodgett (LB) film of PBS. The dissociated PBS could reaggregate into rod-like structures and easily form two-dimensional membrane while being absorbed on HOPG, however, no intact PBS was observed. The filling-space model structure of PBS in Spirulina platensis with STM from three-dimensional real space at nanometer scale was found, which showed that this new structural model of PBS surely exists in blue-green algae and red algae. The function of this structural model of PBS was also discussed.; Phycobilisomes (PBS) were isolated from blue-green alga Spirulina platensis. Scanning tunneling microscope was used to investigate the three-dimensional structure of PBS deposited on freshly cleaved highly oriented pyrolytic graphite (HOPG) in ambient condition at room temperature. The results showed that the rods of PBS radiated from the core to different directions in the space other than arrayed in one plane, which was different from the typical hemi-discoidal model structure. The diameter of PBS was up to 70 nm, and the rod was approximately 50 nm in length. Similar results were observed in Langmuir-Blodgett (LB) film of PBS. The dissociated PBS could reaggregate into rod-like structures and easily form two-dimensional membrane while being absorbed on HOPG, however, no intact PBS was observed. The filling-space model structure of PBS in Spirulina platensis with STM from three-dimensional real space at nanometer scale was found, which showed that this new structural model of PBS surely exists in blue-green algae and red algae. The function of this structural model of PBS was also discussed.
关键词	Spirulina Platensis Phycobilisomes Scanning Tunneling Microscope
学科领域	Biology
收录类别	SCI
语种	英语
WOS记录号	WOS:000078524100011
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3362
专题	实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Shandong Univ, State Key Lab Microbial Technol, Jinan 250100, Peoples R China 3.Chinese Acad Sci, Beijing Lab Vacuum Phys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YZ,Chen, XL,Zhou, BC,et al. A new model of phycobilisome in Spirulina platensis[J]. SCIENCE IN CHINA SERIES C-LIFE SCIENCES,1999,42(1):74-79.
APA	Zhang, YZ.,Chen, XL.,Zhou, BC.,Zeng, CK.,Liu, J.,...&Pang, SJ.(1999).A new model of phycobilisome in Spirulina platensis.SCIENCE IN CHINA SERIES C-LIFE SCIENCES,42(1),74-79.
MLA	Zhang, YZ,et al."A new model of phycobilisome in Spirulina platensis".SCIENCE IN CHINA SERIES C-LIFE SCIENCES 42.1(1999):74-79.

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