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基粒叶绿体和基质叶绿体及其片段的微分光散射

Differential light-scattering of granal and agranal chloroplasts and their fragments.

作者信息

Faludi-Dániel A, Bialek G E, Horváth G, Sz-Rózsa Z, Gregory R P

出版信息

Biochem J. 1978 Aug 15;174(2):647-51. doi: 10.1042/bj1740647.

Abstract

Intact (class-A) granal and agranal maize chloroplasts and chloroplast fragments were examined for differential scattering of circularly polarized light (measured at 90 degrees) and c.d. (circular dichroism) (measured at 0 degrees) by using a modified spectropolarimeter with a large acceptance angle. Useful c.d. information was obtained by making corrections for scattered light. Chloroplast fragments exhibited a large and characteristic differential scattering of circularly polarized light recognized in the presence of granal chloroplasts. It is confirmed that agranal chloroplasts do not have the intense 682 nm c.d. peak that is assigned to the presence of grana.

摘要

利用一台具有大接收角的改良型分光偏振计,对完整的(A类)基粒和基质类玉米叶绿体以及叶绿体片段进行了圆偏振光(在90度测量)和圆二色性(c.d.,在0度测量)的差异散射检测。通过对散射光进行校正获得了有用的圆二色性信息。叶绿体片段在基粒叶绿体存在的情况下呈现出一种大的且具有特征性的圆偏振光差异散射。证实了基质类叶绿体不具有归因于基粒存在的强烈的682纳米圆二色性峰。

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Optical rotatory dispersion of chloroplast-lamellae fragments.叶绿体片层片段的旋光色散
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