Two new centric diatoms (Bacillariophyta) from the sub-Antarctic region

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F19%3A00509361" target="_blank" >RIV/67985939:_____/19:00509361 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0300116" target="_blank" >http://hdl.handle.net/11104/0300116</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11646/phytotaxa.394.1.2" target="_blank" >10.11646/phytotaxa.394.1.2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Two new centric diatoms (Bacillariophyta) from the sub-Antarctic region

Popis výsledku v původním jazyce

During a survey of the limno-terrestrial diatom flora of the sub-Antarctic region, two unknown melosiroid diatom taxa were observed in several shaded, damp cave (moss and soil) samples from Heard Island and Ile de la Possession, the main island of the Crozet Archipelago. Comparison with already known species from the genus Melosira and the recently described genera Arcanodiscus, Angusticopula and Ferocia, resulted in the description of both new taxa based on detailed light and scanning electron microscopy. A first species was described as Ferocia subantarctica sp. nov. and can be distinguished based on its numerous, narrow girdle bands, relatively weakly domed valves, a limited number of well-developed spines and a rather large, hyaline central area. The second species, Arcanodiscus desmetianus Van de Vijver sp. nov., can be recognized based on its solitary frustules, a series of parallel ridges surrounding the mantle and a hyaline central area that is only less than 50% of the total valve diameter. Both taxa are morphologically and ecologically characterized and compared with all known melosiroid taxa worldwide.

Název v anglickém jazyce

Two new centric diatoms (Bacillariophyta) from the sub-Antarctic region

Popis výsledku anglicky

During a survey of the limno-terrestrial diatom flora of the sub-Antarctic region, two unknown melosiroid diatom taxa were observed in several shaded, damp cave (moss and soil) samples from Heard Island and Ile de la Possession, the main island of the Crozet Archipelago. Comparison with already known species from the genus Melosira and the recently described genera Arcanodiscus, Angusticopula and Ferocia, resulted in the description of both new taxa based on detailed light and scanning electron microscopy. A first species was described as Ferocia subantarctica sp. nov. and can be distinguished based on its numerous, narrow girdle bands, relatively weakly domed valves, a limited number of well-developed spines and a rather large, hyaline central area. The second species, Arcanodiscus desmetianus Van de Vijver sp. nov., can be recognized based on its solitary frustules, a series of parallel ridges surrounding the mantle and a hyaline central area that is only less than 50% of the total valve diameter. Both taxa are morphologically and ecologically characterized and compared with all known melosiroid taxa worldwide.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Phytotaxa

ISSN

1179-3155

e-ISSN

—

Svazek periodika

394

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NZ - Nový Zéland

Počet stran výsledku

9

Strana od-do

50-58

Kód UT WoS článku

000459470000002

EID výsledku v databázi Scopus

2-s2.0-85064195019