明晰双肋藻(硅藻门)的超微结构研究  

A Study on the Ultrastructure of Amphileura pellucida(Kützing)Kützing(Bacillariophyta)

作　　者：莫雯惠 袁莉 陈锦华 徐三妹 刘冰[1] MO Wenhui;YUAN Li;CHEN Jinhua;XU Sanmei;LIU Bing(College of Biology and Environmental Sciences, Jishou University, Jishou, Hunan 416000, China;2School of Arts and Science, Huaihua Normal College, Huaihua, Hunan 418000, China)

机构地区：[1]吉首大学生物资源与环境科学学院,湖南吉首416000 [2]怀化师范高等专科学校文理综合学院,湖南怀化418000

出　　处：《西北植物学报》2022年第5期783-786,共4页Acta Botanica Boreali-Occidentalia Sinica

基　　金：国家自然科学基金地区基金项目(31760051);吉首大学研究生科研创新项目资助(JGY202167)。

摘　　要：在对武陵山区硅藻分类和多样性研究中,收集到了一种双肋藻的标本,经研究鉴定,其为明晰双肋藻[Amphipleura pellucida(Kützing)Kützing]。光学显微镜观察和扫描电子显微镜观察结果表明:明晰双肋藻具有以下特征:(1)纺锤形的壳瓣外形。(2)长而直的中央胸骨。(3)仅着生在靠近壳面两端的短壳缝系统。(4)线纹密度为38~39条/10μm,孔纹密度为54~58个/10μm。(5)壳缝的外近缝端呈直线状,远缝端略微膨大。(6)孔纹内侧开口被圆形筛膜覆盖。该研究结果为明晰双肋藻提供了清晰的超微结构图片资料以及科学的描述。A diatom species is identified as Amphipleura pellucida(Kützing)Kützing during the study of diatom classification and diversity in the Wuling Mountains.The results demonstrate that A.pellucida possesses the following features:(1)spindle-shaped valve outlines;(2)long and straight central sternum;(3)short raphe system only located next to two poles;(4)stria density 38-39/10μm and areola density 54-58/10μm;(5)external proximal raphe endings straight and distal raphe endings slightly dilated;(6)the internal areola openings occluding by hymenes.The results of this study provide clear ultrastructure pictures and scientific descriptions for A.pellucida.

关 键 词：双肋藻属 中央胸骨 超微结构 硅藻 

分 类 号：Q949.27[生物学—植物学] Q248