Growth and morphology variation as a response to changing environmental factors in two Arctic species of Raphidonema (Trebouxiophyceae) from snow and soil

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F05%3A00006355" target="_blank" >RIV/60076658:12310/05:00006355 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Growth and morphology variation as a response to changing environmental factors in two Arctic species of Raphidonema (Trebouxiophyceae) from snow and soil

Original language description

Two Arctic species of Raphidonema, a weakly filamentous green alga, were compared on the basis of their growth and morphology response to varied environmental factors. The strain of R. nivale was isolated from snow and R. sempervirens from soil collectedin Svalbard. Morphological variability was evaluated in both strains, with emphasis laid on pleiomorphism of R. nivale. Growth characteristics in varied temperature and light were compared. Field observations were performed in summer 2003 at Werenskioldglacier, southwest Spitsbergen. In both strains, temperature and light were found to affect the shape and size of the cells, and in R. nivale also the number of cells in. lament, probably by modifying growth and division rates. The strain of R. nivale grew best at 12 degrees C and 200 mu mol m(-2) s(-1), R. sempervirens at 18 degrees C and 50 mu mol m(-2) s(-1). In snow, R. nivale only appeared after katabatic wind had brought soil on the snow surface, and its concentrations decreased v

Czech name

Proměnlivost růstu a morfologie jako odpověď na změny faktorů prostředí u dvou Arktických druhů rodu Raphidonema (Trebouxiophyceae) ze sněhu a půdy

Czech description

Proměnlivost růstu a morfologie jako odpověď na změny faktorů prostředí u dvou Arktických druhů rodu Raphidonema (Trebouxiophyceae) ze sněhu a půdy

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Name of the periodical

Polar Biology

ISSN

0722-4060

e-ISSN

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Volume of the periodical

28

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

558-567

UT code for WoS article

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EID of the result in the Scopus database

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