Levels of polyols and non-structural saccharides in natural and experimentally affected lichens: Case study in Xanthoparmelia somloensis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00028545" target="_blank" >RIV/00216224:14310/09:00028545 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Levels of polyols and non-structural saccharides in natural and experimentally affected lichens: Case study in Xanthoparmelia somloensis
Original language description
In algae possessing lichens, polyols serve as energy-storing compounds. They are also osmotically-active compounds that increase lichen resistance to low and freezing temperatures. Natural levels of polyols in lichens are species-specific. They vary within 1.4-8.8 mg.g-1 DW (ribitol), 0.4-29.0 mg.g-1 (mannitol). We investigated natural and experimentally-affected contents of polyols and non-structural saccharides (NSS). Ribitol, mannitol, arabitol and NSS were HPLC-evaluated before and after the experimental treatments: in-vitro exposition of thalli to additional ribitol (32, 50 mM for 168 h at +5, 0, -5 deg C). Initial values were 2.6, 4.1 mg.g-1 DW (ribitol, mannitol). Addition of ribitol led to increased levels of mannitol (at all temperatures), while ribitol, arabitol and fructose showed either no or insignificant change. In control and ribitol-treated lichens, lowest mannitol content was found at -5 deg C. The results were attibuted to altered utilization of polyols at freezing te
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
EF - Botany
OECD FORD branch
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Result continuities
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)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů