Chrysosphaerella septentrionalis sp. nov. (Chrysophyceae, Chromulinales), a New Species from the Arctic Including the Description of Chrysosphaerellaceae , fam. nov.

A new species, Chrysosphaerella septentrionalis , is described from a peat bog located on the bank of the Paz River (Pasvik Nature Reserve, Murmansk Region, Russia). Scale ultrastructure was studied using a scanning electron microscope. Morphologically, C. septentrionalis seems to closely resemble C...

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Bibliographic Details
Published in:Plants
Main Authors: Dmitry Kapustin, Maxim Kulikovskiy
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2022
Subjects:
chrysophytes
siliceous scales
morphology
ultrastructure
SEM
hidden diversity
Botany
QK1-989
Arctic
Murmansk
Pasvik
Online Access:https://doi.org/10.3390/plants11223166
https://doaj.org/article/8f08f306a75b458980bf79bcb7163f0d
Description
Summary:A new species, Chrysosphaerella septentrionalis , is described from a peat bog located on the bank of the Paz River (Pasvik Nature Reserve, Murmansk Region, Russia). Scale ultrastructure was studied using a scanning electron microscope. Morphologically, C. septentrionalis seems to closely resemble C. longispina . However, C. septentrionalis possesses subcircular scales in addition to the oval scales, and they are much smaller than in C. longispina . We suppose that C. septentrionalis is the first pseudocryptic species within the C. longispina complex. Additionally, we proposed an infrageneric classification of Chrysosphaerella based on the scale structure and divided the genus into three sections: Chrysosphaerella , Brevispinae sect. nov. and Septispinae sect. nov. The formal description of a new family Chrysosphaerellaceae fam. nov. is also provided.

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