新属——一个被忽视的具腔单壳缝硅藻新属。

gen. nov.-A New, Neglected Monoraphid Diatom Genus with a Cavum.

作者信息

Kulikovskiy Maxim S, Glushchenko Anton M, Kuznetsova Irina V, Kociolek John Patrick

机构信息

K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., 127276 Moscow, Russia.

Museum of Natural History, Henderson Building, 15th and Broadway, Boulder, CO 80309, USA.

出版信息

Plants (Basel). 2022 Sep 3;11(17):2314. doi: 10.3390/plants11172314.

DOI:10.3390/plants11172314

PMID:36079695

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9460337/

Abstract

A new monoraphid diatom genus, gen. nov., is described on the basis of a detailed morphological investigation using light and scanning electron microscopy. We transferred Héribaud, a species described from fossil deposits in France, to our new genus. We investigated material from Mongolia from Recent populations. This taxon is known from fossils to Recent across the Holarctic. was previously transferred to the genera and , but the morphology of does not share all morphological features with these two genera. We discuss important morphological features for the delimitation of monoraphid genera based on careful morphological and molecular investigations we presented previously. gen. nov. as a genus is characterized by having uniseriate striae on both the raphe and the rapheless valves, a cavum in rapheless valves only, and straight distal raphe ends on the valve face.

摘要

基于使用光学显微镜和扫描电子显微镜进行的详细形态学研究，描述了一个新的单壳缝硅藻属，新属。我们将从法国化石沉积物中描述的物种 Héribaud 转移到了我们的新属中。我们研究了来自蒙古现代种群的材料。该分类单元从化石到现代在全北区都有记录。之前被转移到了属和属，但的形态与这两个属并不共享所有形态特征。我们根据之前进行的仔细形态学和分子研究，讨论了用于界定单壳缝硅藻属的重要形态特征。新属的特征是在具壳缝和无壳缝的瓣膜上都有单列条纹，仅在无壳缝的瓣膜中有腔，并且在瓣膜表面上具壳缝的远端是直的。