Růst a morfologické změny v závislosti na změnách prostředí u dvou Arctických druhů rodu Raphidonema (Trebouxiophyceae) ze sněhu a půdy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F05%3A00027729" target="_blank" >RIV/67985939:_____/05:00027729 - 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 morphological 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 the summer season 2003 atWerenskiöld glacier, southwest Spitsbergen. In both strains, temperature and light affects shape and size of cells, and in R. nivale also the number of cells in filament, probably by modifying growth and division rates. The strain of R. nivale grew bestat 12°C and 200 ?mol.m-2.s-1, R. sempervirens at 18°C and 50 ?mol.m-2.s-1. In snow, R. nivale only appeared after strong wind had brought soil on the snow surface, and its concentrations decreased very rapidly. Cells of R. nivale in sn...

Název v anglickém jazyce

Growth and morphological 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 the summer season 2003 atWerenskiöld glacier, southwest Spitsbergen. In both strains, temperature and light affects shape and size of cells, and in R. nivale also the number of cells in filament, probably by modifying growth and division rates. The strain of R. nivale grew bestat 12°C and 200 ?mol.m-2.s-1, R. sempervirens at 18°C and 50 ?mol.m-2.s-1. In snow, R. nivale only appeared after strong wind had brought soil on the snow surface, and its concentrations decreased very rapidly. Cells of R. nivale in sn...

Druh

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

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

<a href="/cs/project/ME%20576" target="_blank" >ME 576: Ekologické a fyziologické principy aklimatizace/adaptace řas na nízkou teplotu a ozářeni, provonání kmenů polárních oblastí a mírného pásma</a><br>

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

-

Stát vydavatele periodika

DE - Spolková republika Německo

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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