Tolerance of ectomycorrhizal fungus mycelium to low temperature and freezing-thawing.
Identifieur interne : 002340 ( Main/Corpus ); précédent : 002339; suivant : 002341Tolerance of ectomycorrhizal fungus mycelium to low temperature and freezing-thawing.
Auteurs : Dalong Ma ; Guoting Yang ; Liqiang Mu ; Chun LiSource :
- Canadian journal of microbiology [ 1480-3275 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Electrolytes.
- growth & development : Mycelium, Mycorrhizae.
- physiology : Mycorrhizae.
- Cold Temperature, Freezing, Time Factors.
Abstract
Very little is known about the tolerance of ectomycorrhizal fungi to the freezing and repetitive freezing-thawing in northern coniferous forests. Isolates of Cortinarius multiformis , Russula densifolia , Suillus granulatus , and Lactarius deliciosus were exposed to a series of temperatures between +4 and -40 °C. The relative electrolyte leakage test indicated that the lethal temperature for 50% of samples was between -7.6 and -13.7 °C. Resume growth experiments showed that the 4 species of ectomycorrhizal fungi had a relatively high tolerance to the low temperatures, with L. deliciosus having the highest tolerance and C. multiformis the lowest. The repeated freezing-thawing delayed the growth of mycelium, which decreased with an increase in the number of freeze-thaw cycles.
DOI: 10.1139/w11-001
PubMed: 21491984
Links to Exploration step
pubmed:21491984Le document en format XML
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<author><name sortKey="Ma, Dalong" sort="Ma, Dalong" uniqKey="Ma D" first="Dalong" last="Ma">Dalong Ma</name>
<affiliation><nlm:affiliation>College of Forestry, Northeast Forestry University, Harbin, Heilongjiang Province, China.</nlm:affiliation>
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<author><name sortKey="Yang, Guoting" sort="Yang, Guoting" uniqKey="Yang G" first="Guoting" last="Yang">Guoting Yang</name>
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<author><name sortKey="Mu, Liqiang" sort="Mu, Liqiang" uniqKey="Mu L" first="Liqiang" last="Mu">Liqiang Mu</name>
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<author><name sortKey="Li, Chun" sort="Li, Chun" uniqKey="Li C" first="Chun" last="Li">Chun Li</name>
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<author><name sortKey="Ma, Dalong" sort="Ma, Dalong" uniqKey="Ma D" first="Dalong" last="Ma">Dalong Ma</name>
<affiliation><nlm:affiliation>College of Forestry, Northeast Forestry University, Harbin, Heilongjiang Province, China.</nlm:affiliation>
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<author><name sortKey="Yang, Guoting" sort="Yang, Guoting" uniqKey="Yang G" first="Guoting" last="Yang">Guoting Yang</name>
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<author><name sortKey="Mu, Liqiang" sort="Mu, Liqiang" uniqKey="Mu L" first="Liqiang" last="Mu">Liqiang Mu</name>
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<author><name sortKey="Li, Chun" sort="Li, Chun" uniqKey="Li C" first="Chun" last="Li">Chun Li</name>
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<series><title level="j">Canadian journal of microbiology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cold Temperature (MeSH)</term>
<term>Electrolytes (metabolism)</term>
<term>Freezing (MeSH)</term>
<term>Mycelium (growth & development)</term>
<term>Mycorrhizae (growth & development)</term>
<term>Mycorrhizae (physiology)</term>
<term>Time Factors (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Electrolytes</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Mycelium</term>
<term>Mycorrhizae</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term>
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<keywords scheme="MESH" xml:lang="en"><term>Cold Temperature</term>
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<front><div type="abstract" xml:lang="en">Very little is known about the tolerance of ectomycorrhizal fungi to the freezing and repetitive freezing-thawing in northern coniferous forests. Isolates of Cortinarius multiformis , Russula densifolia , Suillus granulatus , and Lactarius deliciosus were exposed to a series of temperatures between +4 and -40 °C. The relative electrolyte leakage test indicated that the lethal temperature for 50% of samples was between -7.6 and -13.7 °C. Resume growth experiments showed that the 4 species of ectomycorrhizal fungi had a relatively high tolerance to the low temperatures, with L. deliciosus having the highest tolerance and C. multiformis the lowest. The repeated freezing-thawing delayed the growth of mycelium, which decreased with an increase in the number of freeze-thaw cycles.</div>
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<Title>Canadian journal of microbiology</Title>
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<Abstract><AbstractText>Very little is known about the tolerance of ectomycorrhizal fungi to the freezing and repetitive freezing-thawing in northern coniferous forests. Isolates of Cortinarius multiformis , Russula densifolia , Suillus granulatus , and Lactarius deliciosus were exposed to a series of temperatures between +4 and -40 °C. The relative electrolyte leakage test indicated that the lethal temperature for 50% of samples was between -7.6 and -13.7 °C. Resume growth experiments showed that the 4 species of ectomycorrhizal fungi had a relatively high tolerance to the low temperatures, with L. deliciosus having the highest tolerance and C. multiformis the lowest. The repeated freezing-thawing delayed the growth of mycelium, which decreased with an increase in the number of freeze-thaw cycles.</AbstractText>
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