Accumulation of Inorganic Contaminants

Bargagli, Roberto; Михайлова, И. Н.

doi:10.1007/978-94-010-0423-7_6

Cited by 57 publications

(40 citation statements)

References 60 publications

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“…The measured concentrations of heavy metals, with the exceptions of Cr and Ni, did not exceed background levels for the Arctic (Bargagli and Mikhailova 2002). The low levels of most of the elements in spite of the proximity to the Polish Polar Station Hornsund (c. 10 km to the north of the study area) suggest that its influence on the environment is only local, as noted by Grodzińska and Godzik (1991) who analysed heavy metals and sulphur contents in mosses in the vicinity of this station.…”

Section: Discussionmentioning

confidence: 60%

“…Our data, sup− ported by the results of Jóźwik (2000), suggest that comparison of C. delisei and F. nivalis in terms of heavy metal accumulation has to be carried out with caution. There can be various reasons for the different behaviour of F. nivalis in com− parison to C. delisei and C. uncialis, such as anatomical features, specifically the composition of the cortex: gelatinized hyphae present in the Flavocetraria cortex may act as a mechanical barrier for big particles and prevent them from entering the interior of the thallus; such hyphae are absent in the cortex of Cetraria, Cetrariella and Cladonia (Bargagli and Mikhailova 2002;Smith et al 2009). An− other factor may involve differences in the binding mechanisms of different metals in the studied species (Bargagli and Mikhailova 2002).…”

Section: Discussionmentioning

confidence: 99%

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The value of the terricolous lichen Cetrariella delisei in the biomonitoring of heavy−metal levels in Svalbard

Węgrzyn¹,

Lisowska²,

Nicia³

2013

Polish Polar Research

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Abstract:The aim of this study was to identify a suitable lichen species for the long−term monitoring of heavy−metal atmospheric pollution in Svalbard. Cladonia and Cetraria s.l. species that have been widely used until now for assessing heavy−metal deposition in the Arctic are in decline over extensive areas of Svalbard, mainly due to climate change and over−grazing by reindeer. Cetrariella delisei, rarely used for biomonitoring, is still common and widespread in this area. Levels of Cr, Ni, Fe, Cu, Pb, Zn, Cd and Mn were measured in three lichen species: Cetrariella delisei, Cladonia uncialis, Flavocetraria nivalis and in a moss Racomitrium lanuginosum from Sørkapp Land, South Spitsbergen. The results imply that Cetrariella delisei can be safely compared to Cladonia uncialis for identifying the lev− els of heavy metals, but direct comparison between Cetrariella delisei and other species studied is more difficult owing to differences in levels of heavy metals even in samples from the same site.

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Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 99%

The value of the terricolous lichen Cetrariella delisei in the biomonitoring of heavy−metal levels in Svalbard

Węgrzyn¹,

Lisowska²,

Nicia³

2013

Polish Polar Research

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“…Both particle trapping and ion uptake from solution depend on morphological features (branching, wrinkling, roughness) and anatomical features (size of pores, density of hyphae in the medulla) (Bargagli and Mikhailova, 2002). Since comparison of element uptake by morphologically similar species of Parmelia did not reveal any clear trend (Bargagli et al, 1987).…”

Section: Resultsmentioning

confidence: 99%

“…Hundreds of studies carried out over the last 40 years confirmed that lichens were among the most reliable accumulators of inorganic contaminants (Bargagli and Mikhailova, 2002;Wolterbeek et al, 2003). Lichens could accumulate and retain many heavy metals in quantities that vastly exceed their physiological requirements and tolerate these high concentrations by binding metals extracellularly and intracellularly (Bačkor and Loppi, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of Cadmium on Physiological Parameters of the LichenEvernia PrunastriandRamalina Fastigiata

Sujetovienė

Šliumpaitė

2013

E3S Web of Conferences

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Abstract. The aim of the study was to investigate in short term experiment the physiological effects and accumulation of cadmium in the lichens Evernia prunastri (L.) Ach. and Ramalina fastigiata (Pers.) Ach. Treatment of lichen thalli with 5, 25, 50 and 500 µM Cd solutions caused a significant decrease in chlorophyll a and b contents and production of membrane lipid peroxidation, expressed as MDA content. Severe negative physiological effects were observed at the highest Cd concentration (500 µM Cd). Cd content in treated lichens thalli increased gradually as Cd concentration increased in treatment solutions. It was concluded that Cd exposure causes physiological and oxidative stress, with higher damage to E. prunastri due to higher Cd content bounded at intracellular sites.

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“…With the transplant technique, healthy lichen thalli are taken from a relatively clean site, transplanted to the study site(s) and their response recorded (Bargagli and Mikhailova 2002). At polluted sites lichens will adapt their metabolism according to the new environment and accumulate airborne elements to levels far above their metabolic requirements (Garty 1993).…”

Section: Introductionmentioning

confidence: 99%

Seasonal variations in intracellular trace element content and physiological parameters in the lichen Evernia prunastri transplanted to an urban environment

Vannini

Paoli

Nicolardi

et al. 2017

Acta Botanica Croatica

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-In this study we investigated the seasonal variations in the intracellular content of 14 trace elements (Al, As, Ba, Cd, Ce, Cr, Cu, Fe, Mn, Ni, Pb, Pd, Sb, Zn) and physiological parameters (namely chlorophyll a, chlorophyll b, ergosterol, photosynthetic efficiency, cell membrane integrity) in the thalli of the lichen Evernia prunastri (L.) Ach. exposed to an urban environment (Siena, central Italy). Lichen thalli were collected before each exposure period from an unpolluted area and transplanted to 16 sites; every 3 months the thalli were retrieved and replaced with new ones. Exposed-to-control ratios of trace elements revealed a marked intracellular accumulation of Cd in summer and autumn, and of Sb in autumn and spring, possibly as a result of vehicular traffic pollution. However, considering the low absolute concentrations of these elements, the intracellular fraction of depositions may hardly have caused an impairment of physiological parameters. As a matter of fact, indicators of photobiont vitality (content of chlorophylls a and b and photosynthetic efficiency) did not show any fluctuation across seasons, while changes in the indicators of mycobiont vitality (cell membrane damage and ergosterol content) overall did reflect some seasonal changes and/or lichen growth.

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Accumulation of Inorganic Contaminants

Cited by 57 publications

References 60 publications

The value of the terricolous lichen Cetrariella delisei in the biomonitoring of heavy−metal levels in Svalbard

The value of the terricolous lichen Cetrariella delisei in the biomonitoring of heavy−metal levels in Svalbard

Effects of Cadmium on Physiological Parameters of the LichenEvernia PrunastriandRamalina Fastigiata

Seasonal variations in intracellular trace element content and physiological parameters in the lichen Evernia prunastri transplanted to an urban environment

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