皮氏小体：某属浮霉菌门细菌中一种新型的膜结合细胞区室 。
Pirellulosomes: a new type of membrane-bounded cell compartment in planctomycete bacteria of the genus .
作者信息
Lindsay Margaret R, Webb Richard I, Fuerst John A
机构信息
Department of Microbiology, University of Queensland, Brisbane, Queensland 4072, Australia.
Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, Queensland 4072, Australia.
出版信息
Microbiology (Reading). 1997 Mar;143(3):739-748. doi: 10.1099/00221287-143-3-739.
A distinct type of cellular organization was found in two species of the planctomycete genus and . 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 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.
在浮霉菌属的两个物种中发现了一种独特的细胞组织类型。这两个物种的细胞内都有两个由单层膜分隔的不同区域。细胞的主要区域，即小梨形体，包含纤维状浓缩核质。另一个区域，即极帽区域，形成围绕整个小梨形体的连续层，并在细胞的一个极处显示出不对称分布物质的帽状结构。对……的免疫和细胞化学标记表明，DNA仅位于小梨形体中；细胞RNA集中在小梨形体中，一些RNA也位于极帽区域。
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