Snow algae and lichen algae differ in their resistance to freezing temperature: An ice nucleation study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00028571" target="_blank" >RIV/00216224:14310/09:00028571 - 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

Snow algae and lichen algae differ in their resistance to freezing temperature: An ice nucleation study

Original language description

Introduction: Cryoresistance of snow algae and lichens surviving at extreme environments (i.e. freezing temperature) includes ice nucleation activity. However, interspecific differences in cryoresistance exist according to physiological adjustment of thespecies to in situ conditions. Objectives: We focused on differences in freezing temperatures of snow (Chlamydomonas nivalis, Chloromonas nivalis) and lichen symbiotic algae (Trebouxia erici, T.assymetrica, T.glomerata). The green mesophilic flagellateChlamydomonas reinhardtii was used as an inner standard. We also focused on growth temperature optimum. Methods: Ice nucleation spectrometry (INS) was used to quantify the number and activity of ice nucleating agents. Temperature optimum was measured using a cross gradient cultivator (temperature x light). Results: Pooled data showed that snow algae had higher value of freezing temperature (minus 9.8 deg C) than lichen symbiotic algae (minus 14.7 deg C).

Czech name

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Czech description

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Type

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

CEP classification

EF - Botany

OECD FORD branch

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Project

<a href="/en/project/KJB601630808" target="_blank" >KJB601630808: Effects of low and freezing temperatures on photosynthesis in lichen symbiotic algae affected by ribitol.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2009

Confidentiality

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

Name of the periodical

Phycologia

ISSN

0031-8884

e-ISSN

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Volume of the periodical

48

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

2

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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