DIANA MIHAELA PINDARU, CATALIN TANASE, ROMEO IULIAN OLARIU, CECILIA ARSENE<br>Extra and Intercellular Concentrations of Water Soluble <br>Cations from  Xanthoria parietina and <br>Phaeophyscia orbicularis Lichenized Fungi Species

DIANA MIHAELA PINDARU, CATALIN TANASE, ROMEO IULIAN OLARIU, CECILIA ARSENE
Extra and Intercellular Concentrations of Water Soluble
Cations from Xanthoria parietina and
Phaeophyscia orbicularis Lichenized Fungi Species

Abstract:

The aim of the present study was to determine concentrations of the water soluble content of sodium (Na+), potassium (K+), ammonium (NH4+), calcium (Ca2+) and magnesium (Mg2+) cations accumulated in the extra and intercellular locations of Xanthoria parietina and Phaeophyscia orbicularis lichenized fungi thallus collected in the north-eastern Romania. The concentrations of the interest cations were determined by ion chromatography. An increase of electrolyte leakage, especially K+, was observed in both Xanthoria parietina and Phaeophyscia orbicularis species, which might be a result of the cell membranes disruption. The identified and quantified cations did not exhibit well defined trends, but rather showed fluctuations between the investigated species and within the investigated time period. Multivariate statistical tools were used in order to investigate the obtained results. The most significant correlations were observed for the (K+,Mg2+) pair in both Xanthoria parietina and Phaeophyscia orbicularis species, an observation which might suggest either similarities in their locations or possible common physiological role. Keywords: lichenised fungi, Xanthoria parietina, Phaeophyscia orbicularis, macronutrients, ionic forms, ion chromatography

Issue: 2013, Volume 64, Issue 7

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This article is published under the Creative Commons Attribution 4.0 International License

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