扎龙自然保护区宽带鼓藻属(鼓藻目)一新种  

A new species of Pleurotaenium Ngeli (Desmidiales) in Zhalong National Nature Reserve,NE China

作　　者：付志鑫 李雪 刘妍[1] 范亚文[1] 

机构地区：[1]哈尔滨师范大学生命科学与技术学院,哈尔滨150025 [2]茅台学院,遵义564500

出　　处：《湖泊科学》2017年第5期1274-1278,共5页Journal of Lake Sciences

基　　金：国家自然科学基金项目(31270250;31470308)资助

摘　　要：2011-2012年间对扎龙国家级自然保护区的藻类标本进行采集及观察鉴定.研究发现,该区域鼓藻类植物生物多样性较高,共观察到90个分类单位.研究过程中发现宽带鼓藻属的一个新种——Pleurotaenium parvulum Li,Fan&Wei.该物种特征为植物体单细胞,细胞小型,长圆柱形;半细胞顶端平截,其缘边横断面可见5个小结节;细胞壁平滑或具点纹;半细胞具两个轴生星状的色素体,每个色素体具1个蛋白核.本文比较了该物种与其相近种类之间的差异.A very abundant desmids biota was found in Zhalong National Nature Reserve in 2011-2012,including 90 taxa in total.Among them,a Pleurotaenium species is proposed as new to science,Pleurotaenium parvulum Li,Fan Wei. The new species is characterized of small cells and a long cylinder without processes,a truncated apex,five small nodules on cross section,cell wall smooth or with puncta,semicells with two axial longitudinal ridge-shaped chromatoplasts,and each with two pyrenoids. Differences between the species and allied taxa are discussed.

关 键 词：鼓藻 宽带鼓藻属 新种 扎龙国家级自然保护区 

分 类 号：Q949.2[生物学—植物学]