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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F09%3A00028571%21RIV10-AV0-14310___
rdf:type
skos:Concept n18:Vysledek
dcterms: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 the species 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 flagellate Chlamydomonas 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). 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 the species 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 flagellate Chlamydomonas 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).
dcterms:title
Snow algae and lichen algae differ in their resistance to freezing temperature: An ice nucleation study Snow algae and lichen algae differ in their resistance to freezing temperature: An ice nucleation study
skos:prefLabel
Snow algae and lichen algae differ in their resistance to freezing temperature: An ice nucleation study Snow algae and lichen algae differ in their resistance to freezing temperature: An ice nucleation study
skos:notation
RIV/00216224:14310/09:00028571!RIV10-AV0-14310___
n3:aktivita
n12:P
n3:aktivity
P(KJB601630808)
n3:cisloPeriodika
4
n3:dodaniDat
n9:2010
n3:domaciTvurceVysledku
n10:2883155 n10:9431217 n10:6573592 n10:9462627
n3:druhVysledku
n14:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
341904
n3:idVysledku
RIV/00216224:14310/09:00028571
n3:jazykVysledku
n4:eng
n3:klicovaSlova
snow algae; lichen algae; freezing temperature; ice nucleation spectrometry; Trebouxia; resistance
n3:klicoveSlovo
n6:lichen%20algae n6:snow%20algae n6:ice%20nucleation%20spectrometry n6:Trebouxia n6:resistance n6:freezing%20temperature
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[384ABE23BF9D]
n3:nazevZdroje
Phycologia
n3:obor
n5:EF
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
6
n3:projekt
n15:KJB601630808
n3:rokUplatneniVysledku
n9:2009
n3:svazekPeriodika
48
n3:tvurceVysledku
Barták, Miloš Worland, Roger Hájek, Josef Elster, Josef Váczi, Peter Kvíderová, Jana
s:issn
0031-8884
s:numberOfPages
2
n7:organizacniJednotka
14310