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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Polar Biology

ISSN

0722-4060

e-ISSN

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Svazek periodika

28

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

558-567

Kód UT WoS článku

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EID výsledku v databázi Scopus

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