Chloromonas arctica sp nov., a psychrotolerant alga from snow in the High Arctic (Chlamydomonadales, Chlorophyta)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897561" target="_blank" >RIV/60076658:12310/18:43897561 - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/18:00490101 RIV/00216208:11310/18:10386011

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/jeu.12633" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/jeu.12633</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1099/ijsem.0.002595" target="_blank" >10.1099/ijsem.0.002595</a>

Result language

angličtina

Original language name

Chloromonas arctica sp nov., a psychrotolerant alga from snow in the High Arctic (Chlamydomonadales, Chlorophyta)

Original language description

With the advent of molecular phylogenetic methods, it has become possible to assess the bioversity of snow algae more accurately. In this study, we focused on a morphological, ultrastructural and taxonomic description of a new Chloromonas-like alga isolated from snow in the High Arctic (Svalbard). Light and transmission electron microscopy revealed broad ellipsoidal or ellipsoidal-cylindrical, occasionally spherical cells with a chloroplast without a pyrenoid, an inconspicuous eyespot and a papilla. The size difference and the aforementioned morphological traits clearly distinguished the alga from its closest counterparts within the genus Chloromonas. Moreover, we were able to cultivate the alga at both 5 and 20 degrees C, revealing the psychrotolerant nature of the strain. Phylogenetic analyses of the plastid rbcL and nuclear 18S rRNA gene showed that the alga is nested within a Glade containing a number of psychrotolerant strains within the Chloromonadinia phylogroup (Chlorophyceae). In the rbcL phylogeny, the alga formed an independent lineage, sister to the freshwater species Chloromonas paraserbinowii. Comparisons of secondary structure models of a highly variable ITS2 rDNA marker showed support for a distinct species identity for the new strain. The ITS2 secondary structure of the new isolate differed from the closest matches &apos;Chlamydomonas&apos; gerloffii and Choloromonas reticulata by three and five compensatory base changes, respectively. Considering the morphological and molecular differences from its closest relatives, a new psychrotolerant species from the Arctic, Choromonas arctica sp. nov., is proposed.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

International Journal of Systematic and Evolutionary Microbiology

ISSN

1466-5026

e-ISSN

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Volume of the periodical

68

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

851-859

UT code for WoS article

000432657400024

EID of the result in the Scopus database

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