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渗透肿胀时脂质体和植物原生质体膜流动性的增加。

Increase in membrane fluidity in liposomes and plant protoplasts upon osmotic swelling.

作者信息

Borochov A, Borochov H

出版信息

Biochim Biophys Acta. 1979 Feb 2;550(3):546-9. doi: 10.1016/0005-2736(79)90156-1.

DOI:10.1016/0005-2736(79)90156-1
PMID:420831
Abstract

Osmotic gradient across the membrane of nonsonicated liposomes and rose petal protoplasts are shown to induce swelling. Concomitantly, the lipid fluidity as measured by fluorescence depolarization is increased, probably due to increase in molar free volume. It is suggested that osmotic swelling can affect cell physiology via changes in membrane fluidity.

摘要

研究表明,跨未超声处理脂质体和玫瑰花瓣原生质体膜的渗透梯度会引发肿胀。与此同时,通过荧光去极化测量的脂质流动性增加,这可能是由于摩尔自由体积增加所致。研究认为,渗透性肿胀可能通过膜流动性的变化影响细胞生理。

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Nonosmotic inhibition by sugars of the ethylene-forming activity associated with microsomal membranes from carnation petals.糖对康乃馨花瓣微粒体膜中与乙烯形成活动相关的非渗透性抑制作用。
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