Pirellulosomes: A new type of membrane-bounded cell compartment in planctomycete bacteria of the genus Pirellula
Pirellulosomes: A new type of membrane-bounded cell compartment in planctomycete bacteria of the genus Pirellula
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DOI：
10.1099/00221287-143-3-739
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发表时间：
1997-03-01
期刊：
影响因子：
--
通讯作者：
Fuerst, JA
中科院分区：
文献类型：
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作者：
Lindsay, MR;Webb, RI;Fuerst, JA
在浮菌菌属 Pirellula 的两个物种（Pirellula marina 和 Pirellula staleyi）中发现了一种独特的细胞组织类型。两种物种的细胞内都具有两个不同的区域，这些区域被单层膜隔开。细胞的主要区域，pirelulosome，包含纤维状浓缩核仁。另一个区域，即极帽区域，形成围绕整个 pirellulosome 的连续层，并在一个细胞极处显示出不对称分布的材料帽。 P. marina 的免疫和细胞化学标记证明 DNA 完全位于 pirellulosome 内；细胞RNA集中在pirelulosome中，一些RNA也位于极帽区域。
A distinct type of cellular organization was found in two species of the planctomycete genus Pirellula, Pirellula marina and Pirellula staleyi. Both species possess two distinct regions within the cell which are separated by a single membrane. The major region of the cell, the pirellulosome, contains the fibrillar condensed nucleoid. The other area, the polar cap region, forms a continuous layer surrounding the entire pirellulosome and displays a cap of asymmetrically distributed material at one cell pole. Immuno- and cytochemical-labelling of P. marina demonstrated that DNA is located exclusively within the pirellulosome; cell RNA is concentrated in the pirellulosome, with some RNA also located in the polar cap region.