CHARACTERIZATION OF TRIMERIC PHOTOSYSTEM-I PARTICLES FROM THE PROCHLOROPHYTE PROCHLOROTHRIX-HOLLANDICA BY ELECTRON-MICROSCOPY AND IMAGE-ANALYSIS

被引：20

作者：

VANDERSTAAY, GWM

BOEKEMA, EJ

DEKKER, JP

MATTHIJS, HCP

机构：

[1] UNIV AMSTERDAM,MICROBIOL LAB,AMSTERDAM,NETHERLANDS

[2] UNIV GRONINGEN,BIOSON RES INST,9700 AB GRONINGEN,NETHERLANDS

[3] FREE UNIV AMSTERDAM,DEPT PHYS & ASTRON,1007 MC AMSTERDAM,NETHERLANDS

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1993年 / 1142卷 / 1-2期

关键词：

PHOTOSYSTEM-I STRUCTURE; ELECTRON MICROSCOPY; LIGHT-HARVESTING COMPLEX; (PROCHLOROTHRIX-HOLLANDICA); (PROCHLOROPHYTE); (OXYCHLOROBACTERIUM);

D O I：

10.1016/0005-2728(93)90101-K

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Photosystem I particles from Prochlorothrix hollandica were isolated from dodecylmaltoside solubilized thylakoid membranes on sucrose gradients in the presence of dodecylmaltoside. The particles were characterized by electron microscopy and image reconstriction techniques. The lowest, major green band in the gradient contained trimeric Photosystem I particles with features similar to Photosystem I from cyanobacteria. No evidence for an association of the chlorophyll a/b-binding antenna with Photosystem I was found. The trimeric association of Photosystem I appears to be a generally occurring aggregation mechanism in oxygenic prokaryotes.

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页码：189 / 193

页数：5

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