Re-examination of Cyclotella lacunarum Hustedt (Bacillariophyta) from lakes in the Pamir Mountains, western China, and description of two similar Lindavia taxa collected from Tajikistan and Nepal

doi:10.1080/0269249X.2020.1745896

	Re-examination of Cyclotella lacunarum Hustedt (Bacillariophyta) from lakes in the Pamir Mountains, western China, and description of two similar Lindavia taxa collected from Tajikistan and Nepal
	Rioual, Patrick 1,7; Peng, Yumei 6; Jin, Zhangdong 5; Lami, Andrea 4; Marchetto, Aldo 4; Mischke, Steffen 3; Zhang, Fei 5; Zhang, Zhongyan 7; Yang, Xiaoping 2
刊名	DIATOM RESEARCH
	2020-01-02
卷号	35 期号:1 页码:63-84
ISSN号	0269-249X
DOI	10.1080/0269249X.2020.1745896
通讯作者	Rioual, Patrick(prioual@mail.iggcas.ac.cn)
英文摘要	Originally described from a sample collected in the Pamir Mountains at the end of the nineteenth century, Cyclotella lacunarum Hustedt is a centric diatom species that is not-well defined and seldom reported in the scientific literature. Our investigations revealed that the type locality of this taxon, now referred to as Lindavia lacunarum (Hustedt) Nakov et al., is actually in western China and not in Tajikistan, as wrongly assumed previously. Light microscope (LM) and scanning electron microscope (SEM) observations of the type material and of modern material collected at the type locality allowed us to emend the description of this species. Its most remarkable character is that it possesses central fultoportulae with only two satellite pores instead of three as generally reported for similar species of Lindavia. Lindavia lacunarum was then compared to two similar populations of Lindavia collected from high elevation lakes in Tajikistan and Nepal. These two populations were originally identified as Cyclotella/Lindavia lacunarum and represent the only reported occurrences of this taxon outside its type locality. The population from Tajikistan differs from L. lacunarum by having cells of smaller size, with an almost flat valve face and has been described as a new variety Lindavia lacunarum var. karakulensis var. nov. The Nepalese population is more clearly differentiated from L. lacunarum by having a different type of colliculate pattern in the central area and significantly lower density of central fultoportulae and is therefore described as a new species, Lindavia nepalensis sp. nov.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Science Foundation of China[41430532] ; Chinese Academy of Sciences[kzcx2-yw-119]
WOS关键词	DIATOM GENUS CYCLOTELLA ; BADAIN JARAN DESERT ; SP-NOV ; KUTZING BREBISSON ; CENTRIC DIATOMS ; INNER-MONGOLIA ; ALPINE LAKE ; MORPHOLOGY ; STEPHANODISCACEAE ; PUNCTICULATA
WOS研究方向	Marine & Freshwater Biology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000528356600001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14702]
专题	地球环境研究所_加速器质谱中心
通讯作者	Rioual, Patrick
作者单位	1.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 2.Zhejiang Univ, Sch Earth Sci, Dept Geog, Hangzhou, Peoples R China 3.Univ Iceland, Inst Earth Sci, Reykjavik, Iceland 4.CNR Water Res Inst IRSA, Verbania, Italy 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 6.Shaoyang Univ, Sch Urban & Rural Construct, Shaoyang, Peoples R China 7.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Rioual, Patrick,Peng, Yumei,Jin, Zhangdong,et al. Re-examination of Cyclotella lacunarum Hustedt (Bacillariophyta) from lakes in the Pamir Mountains, western China, and description of two similar Lindavia taxa collected from Tajikistan and Nepal[J]. DIATOM RESEARCH,2020,35(1):63-84.
APA	Rioual, Patrick.,Peng, Yumei.,Jin, Zhangdong.,Lami, Andrea.,Marchetto, Aldo.,...&Yang, Xiaoping.(2020).Re-examination of Cyclotella lacunarum Hustedt (Bacillariophyta) from lakes in the Pamir Mountains, western China, and description of two similar Lindavia taxa collected from Tajikistan and Nepal.DIATOM RESEARCH,35(1),63-84.
MLA	Rioual, Patrick,et al."Re-examination of Cyclotella lacunarum Hustedt (Bacillariophyta) from lakes in the Pamir Mountains, western China, and description of two similar Lindavia taxa collected from Tajikistan and Nepal".DIATOM RESEARCH 35.1(2020):63-84.