Modifications in the structure of the lichen Cladonia thallus in the aftermath of habitat contamination and implications for its heavy-metal accumulation capacity

Environmental Science and Pollution Research International
Piotr OsyczkaKaja Rola

Abstract

Phenotypic traits of lichens can be greatly modified by environmental factors. Granulose thalli on soil and podetia, densely covered with granules, referring to common and widespread lichen Cladonia cervicornis subsp. verticillata were found near zinc smelter. The granules are stratified, filled with fungal medulla and heavily encrusted with calcium oxalate weddellite crystals, not observed on regularly developed thalli of the species. Phylogenetic analysis revealed that deformed granulose forms belong to this taxon, showing that the phenotypic plasticity of the lichens of Cladonia can lead to the emergence of features that do not coincide with the taxonomic definition of the species. The heavy-metal accumulation capacity of both granulose and regular form of primary and secondary lichen thallus, in relation to the element content in corresponding substrate, was determined. Granulose-modified thalli accumulate greater amounts of heavy metals than regular ones, meaning that the bioaccumulation property of a given species may be greatly affected by morphological modifications. The granulose forms are also characterised by considerably higher ratios of Cd, Pb and As concentrations in lichen samples in relation to the corresponding...Continue Reading

References

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Apr 17, 2013·Environmental Science and Pollution Research International·Piotr Osyczka, Kaja Rola
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Jun 8, 2014·Environmental Monitoring and Assessment·Kaja Rola, Piotr Osyczka
Jun 6, 2015·Environmental Science and Pollution Research International·Luca PaoliStefano Loppi

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Citations

Nov 20, 2019·Environmental Science and Pollution Research International·Hiromitsu NakajimaKiminori Itoh
Apr 3, 2019·Environmental Science and Pollution Research International·Soledad Perez CatánMaría Inés Messuti

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Datasets Mentioned

BETA
FM945351

Methods Mentioned

BETA
PCRs
PCR
scanning
X-ray
atomic absorption spectrometry
PCA

Software Mentioned

MrBayes
BLAST
MEGA
FastGap
STATISTICA
ClustalW
jModeltest

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