Physiological comparison of copper toxicity in the lichens Peltigera rufescens (Weis) Humb. and Cladina arbuscula subsp. mitis (Sandst.) Ruoss

Bačkor, Martin; Kováčik, Jozef; Dzubaj, Alexander; Bačkorová, Miriam

doi:10.1007/s10725-009-9376-x

Cited by 37 publications

(15 citation statements)

References 30 publications

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“…Increased Cd and Ni caused significant decrease in chlorophyll a in both species. However, when compared with some other toxic metals, e.g., Cu and Hg (Bačkor and Zetíková 2003;Bačkor et al 2009), the present reduction was much lower. Bačkor et al (2007) demonstrated that the presence of Cd has no significant effect on the content of chlorophyll a of the lichen photobiont T. erici, a species belonging to the same genus of the photobiont of C. arbuscula subsp.…”

Section: Discussionmentioning

confidence: 55%

Physiological Aspects of Cadmium and Nickel Toxicity in the Lichens Peltigera rufescens and Cladina arbuscula Subsp. mitis

Bačkor¹,

Kováčik²,

Piovár³

et al. 2009

Water Air Soil Pollut

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This study was undertaken with the aim of investigating the effect of Cd 2+ and Ni 2+ containing solutions on selected physiological parameters (metal uptake, chlorophyll a fluorescence, assimilation pigment composition, thiobarbituric acid-reactive substance production, and ergosterol content) in the lichens Peltigera rufescens and Cladina arbuscula subsp. mitis growing on historic copper mine-spoil heaps at Ľubietová-Podlipa, Slovakia. Physiological measurements did not confirm significantly higher sensitivity to Cd and Ni of the cyanolichen P. rurescens compared to the green-algal lichen C. arbuscula subsp. mitis. Under natural conditions, C. arbuscula subsp. mitis is able to grow directly on copper mine heaps of Central Slovakia, while P. rufescens grows only on their margins. A crucial factor for this limited distribution of P. rufescens may be, at least in part, the higher intracellular accumulation of metals. Although lichen photobionts are generally regarded as key elements of lichen sensitivity, further research is necessary to elucidate this point since the higher levels of intracellular Cd and Ni do not allow to regard cyanobacterial photobionts of P. rufescens as more sensitive than the eukaryotic ones of C. arbuscula subsp. mitis.

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Section: Discussionmentioning

confidence: 55%

Physiological Aspects of Cadmium and Nickel Toxicity in the Lichens Peltigera rufescens and Cladina arbuscula Subsp. mitis

Bačkor¹,

Kováčik²,

Piovár³

et al. 2009

Water Air Soil Pollut

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“…In some plants, Cu had been shown to reduce biomass, caused chlorotic symptoms and necrosis, inhibited plant growth [15], caused changes in physiological indexes [16]- [18]. Remediation was widely studied to recovery Cu contaminated soil.…”

Section: Discussionmentioning

confidence: 99%

“…Physical and chemical remediation had serious limitations and adverse effects such as destruction of soil structure, secondary pollution, and huge costs. Phytoremediation was an economically and ecologically appropriate clean up procedures [17], [20], and it was viewed as a more promising remediation technology [16].…”

Section: Discussionmentioning

confidence: 99%

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Wang¹,

Li²,

Guo³

et al. 2016

IJESD

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Abstract-Phytoremediation is becoming a potential method for remediation of heavy metal contaminated soil. The aim of this study is to discuss whether the sorrel absorbs copper (Cu) from the soil, and whether arbuscular mycorrhizal fungi (AMF) inoculation enhances its capacity of Cu uptake. The experiment was conducted in plastic pots with three treatments: control, 600 mg/kg Cu, and 600 mg/kg Cu plus 10 g AMF. The results showed that the sorrel accumulated Cu when planted in Cu contaminated soil. Furthermore, the more uptake Cu, the more nitrogen (N) and phosphorus (P) was absorbed. When the sorrel was under copper stress, its peroxidase (POD) and catalase (CAT) activities increased, while superoxide dismutase (SOD) activity decreased compared with the control. Chlorophyll (Chl) content decreased under copper stress, but no significant differences were observed in malondialdehyde (MDA) content. Although Cu stress inhibited the activity of soil urease, it didn't affect activities of soil cellulose, soil sucrase, and soil catalase. It also showed that AMF inoculation promoted the growth of sorrel, enhanced the capacity of Cu, N, P, and potassium (K) uptake, but it didn't affect MDA and Chl content, POD activity , and CAT activities of sorrel. However, SOD activity was inhibited a little bit. The results also showed that AMF enhanced the activity of soil urease, inhibited activities of soil cellulose and soil sucrase. But it didn't influence the activity of soil CAT. It concluded that this sorrel was a Cu accumulating plant and AMF inoculation improved its capacity of Cu uptake.

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“…Recently, this photobiont has been taxonomically designated as Asterochloris (Trebouxiophyceae, Chlorophyta) (Skaloud and Peksa 2010). These lichens are common species in the Slovak Republic (Bačkor et al 2009); they are exposed to nitrogen excess on the form of precipitation, and they are not classical epiphytic lichens, which have extensively been studied, what makes them suitable for experiment. Lichens were collected randomly on October 16 and 17, 2013, throughout a substrate from the former copper mining.…”

Section: Lichen Materialsmentioning

confidence: 99%

“…The membrane lipid peroxidation was estimated using the thiobarbituric acid reactive substances (TBARS) assay, as described by Bačkor et al (2009). Lichen thalli (200 mg) were homogenized at 0.1 % (w/v) trichloracetic acid (TCA).…”

Section: Membrane Lipid Peroxidationmentioning

confidence: 99%

Differences Between Sensitivity of Mycobiont and Photobiont of Cladonia sp. Lichens to Different Types of Nitrogen Exposure

Maslaňáková

Biľová

Goga

et al. 2015

Water Air Soil Pollut

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Lichens absorb water, gases, dissolved substances, and especially pollutants by the entire surface, and they are considered to be the indicators of air quality. In our experiment, a sensitivity of Cladonia arbuscula subsp. mitis and Cladonia furcata lichens with the same photobiont Trebouxia was tested to nitrogen excess through a sensitivity of both the photobiont and mycobiont. Lichen ecophysiological parameters like chlorophyll a fluorescence, chlorophyll a integrity, the content of photosynthetic pigments, ergosterol, soluble proteins, thiobarbituric acid reactive substances, and secondary compounds were measured during two experiments that differed in time of nitrogen exposure. In the short-term experiment, also higher nitrogen concentrations were used to evaluate the dependence of different nitrogen concentrations. In the short-term experiment, lichens were soaked at the different solutions of ammonium nitrate (NH 4 NO 3 ) for describing an immediate effect of range of NH 4 NO 3 concentrations. In the long-term experiment, lichens were sprayed with low NH 4 NO 3 concentrations for 3 months for evaluating the effect of naturally occurring low nitrogen concentrations. Results showed that lichens responded differently in spite of having the same photobiont. The mycobiont of C. arbuscula subsp. mitis was more sensitive than mycobiont of C. furcata. In higher nitrogen concentrations, the photobiont of C. furcata was more sensitive than C. arbuscula subsp. mitis photobiont. Both lichens exhibited signs of damage; therefore, we conclude that they are sensitive to nitrogen excess, while C. arbuscula subsp. mitis is more sensitive species. The secondary compound content did not change in neither of lichen species. Cladonia sp. response to nitrogen excess depends on length and nitrogen dose exposure.

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Physiological comparison of copper toxicity in the lichens Peltigera rufescens (Weis) Humb. and Cladina arbuscula subsp. mitis (Sandst.) Ruoss

Cited by 37 publications

References 30 publications

Physiological Aspects of Cadmium and Nickel Toxicity in the Lichens Peltigera rufescens and Cladina arbuscula Subsp. mitis

Physiological Aspects of Cadmium and Nickel Toxicity in the Lichens Peltigera rufescens and Cladina arbuscula Subsp. mitis

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Differences Between Sensitivity of Mycobiont and Photobiont of Cladonia sp. Lichens to Different Types of Nitrogen Exposure

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