J. Kociolek, Q. You, P. Yu, Yanling Li, Yanlu Wang, R. Lowe, Quanxi Wang
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引用次数: 4
Abstract
We describe a new genus of monoraphid diatom based on Achnanthidium ovatum T.Watanabe et Tuji in Watanabe et al., a species described originally from Japan. We encountered this species from Yunnan Province in the southwestern part to eastern China, as well as in Luding, Sichuan Province and Xianju, Zhejiang Province, in pristine lotic environments. The species differs from the genus Achnanthidium by being asymmetrical to the transapical axis and has a pseudoseptum at the poles of the interior of the raphe valve which is fused with each helictoglossa. Moreover, a distinct group of condensed striae can be found at the narrower pole ('footpole') of the raphe valve. This appears to be the only known genus of freshwater monoraphid diatoms that is restricted to a single continent.
我们以Watanabe et al.中的Achnanthidium ovatum t.w Watanabe et Tuji为基础，描述了一个原产于日本的单蚜硅藻新属。本种分布于中国西南至东部的云南省，以及四川泸定和浙江仙居的原始生态环境中。该种与Achnanthidium属的不同之处在于与跨根尖轴不对称，并且在中缝瓣内部的两极处有假隔膜，与每个螺旋舌融合。此外，在中缝瓣较窄的极(“足极”)处可以发现一组明显的压缩条纹。这似乎是唯一已知的淡水单蚜虫硅藻属，仅限于一个大陆。
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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