Fine Structure of Yellow‐Brown Symbionts (Prymnesiida) in Solitary Radiolaria and Their Comparison with Similar Acantharian Symbionts1
Fine Structure of Yellow‐Brown Symbionts (Prymnesiida) in Solitary Radiolaria and Their Comparison with Similar Acantharian Symbionts1
复制标题
孤立放射虫中黄棕色共生体（Primnesiida）的精细结构及其与类似棘鱼共生体的比较1
DOI：
10.1111/j.1550-7408.1983.tb05351.x
复制
发表时间：
1983
影响因子：
2.2
通讯作者：
P. Bennett
中科院分区：
文献类型：
--
作者：
O. Anderson;N. Swanberg;P. Bennett
直径约5 ~ 20 μ m的黄褐色藻类共生体，与具有海绵状骨架的放射菌（即Spongodrymus sp.）相关，具有类似于Prymnesiida（植物学纲，Prymnesiophyceae）的精细结构特征。一个大的中央液泡被一层薄薄的细胞质包围，细胞质中含有质体，质体的片层由三个类囊体和颗粒状的类pyrenox组成，内部小管浸没在类囊体之间。类pyrenox缺乏内部类囊体膜。细胞核被核膜的扩张池所包围，核膜也包围着质体并产生内质网的小囊。共生藻类呈球茎状；因此没有观察到鞭毛和表面鳞片。该共生体的精细结构与与棘属有关的类似的黄褐色共生体进行了比较。到目前为止，已经观察到三种藻类共生体与孤立放射虫有关：鞭毛藻、单胞藻和这种明显的单胞藻。
Yellow-brown, algal symbionts varying in diameter from approximately 5 μ m to 20 μ m, associated with solitary Radiolaria with spongiose skeletons (i.e. Spongodrymus sp.), exhibit fine structural features resembling the Prymnesiida (botanical class, Prymnesiophyceae). A large central vacuole is surrounded by a thin layer of cytoplasm containing plastids with lamellae composed of three thylakoids and granular pyrenoids with internal tubules immersed between the thylakoids. The pyrenoids lack internal thylakoid membranes. The nucleus is surrounded by a dilated cisterna of the nuclear envelope that also encloses the plastids and gives rise to saccules of the endoplasmic reticulum. The algal symbionts appear coccoid; hence no flagella nor surface scales were observed. The symbiont fine structure is compared to similar yellow-brown symbionts associated with Acantharia. Thus far, three kinds of algal symbionts have been observed to be associated with solitary Radiolaria: dinoflagellate, prasinomonad, and this apparent prymnesiomonad.
在高pH值中使用柠檬酸铅作为电子显微镜中的电子斑点。
影响因子：
7.8
作者：
REYNOLDS, E S
通讯作者：
REYNOLDS, E S