The effect of Cu, Zn and Pb on the chlorophyll content of the lichens Cladonia convoluta and Cladonia rangiformis

Chettri, Mukesh Kumar; Cook, Catherine M.; Vardaka, Elisabeth; Sawidis, Thomas; Lanaras, T.

doi:10.1016/s0098-8472(97)00024-5

Cited by 133 publications

(76 citation statements)

References 28 publications

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“…Mosses are known as bioindicators for heavy metal pollution because of their high accumulation capacity of heavy metals (Shakya et al, 2008). For bryophytes, the tolerance mechanism operates by binding uptaken metal cations to the cell wall anionic exchange sites created by generally negatively charged polyuronic acids (Tyler, 1990;Chettri et al, 1998).…”

Section: Discussionmentioning

confidence: 99%

“…Cu and Cr , and reduced glutathione/oxidized glutathione (GSH/GSSG) ratio (C) of moss species P. squarrosa and T. barbuloides exposed to Ni, Pb, Cu, and Cr metals for 48 h. Values represent mean ± SE (n = 3). **: Significant difference at P < 0.01; *: at P < 0.05. treatment led to the oxidation process of the Chl a methyl group (Chettri et al, 1998) to form Chl b in P. squarrosa and T. barbuloides. Detrimental effects of heavy metals on the content of photosynthetic pigments are based on the inhibition of pigment synthesis (Huang et al, 2013) and/or the oxidative damage to pigments that results in changes of the Chl a/b ratio.…”

Section: Oxidative Damagementioning

confidence: 99%

See 1 more Smart Citation

Bioaccumulation and oxidative stress impact of Pb, Ni, Cu, and Cr heavy metals in two bryophyte species, Pleurochaete squarrosa and Timmiella barbuloides

Aydoğan¹,

Erdağ²,

Aktaş³

2017

Turk J Bot

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Section: Discussionmentioning

confidence: 99%

Section: Oxidative Damagementioning

confidence: 99%

Bioaccumulation and oxidative stress impact of Pb, Ni, Cu, and Cr heavy metals in two bryophyte species, Pleurochaete squarrosa and Timmiella barbuloides

Aydoğan¹,

Erdağ²,

Aktaş³

2017

Turk J Bot

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“…It has been suggested that the Chl-b/Chl-a ratio is a useful parameter to determine the physiological conditions and photobionts subjected to heavy metals (Chettri et al 1998). In this study, the Chl-b/Chl-a ratio was used to quantify the sensitivity of heavy metal elements effected the chlorophyll-a and chlorophyll-b in the gold mine-abandoned areas.…”

Section: Pigment Contents In Plantsmentioning

confidence: 99%

Geochemistry and genotoxicity of the heavy metals in mine-abandoned areas and wasteland in the Hetai goldfields, Guangdong Province, China

et al. 2011

Environ Earth Sci

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The article presents the geochemical and biogeochemical characteristics of heavy metal elements within the soil-plant system in the Hetai mine-abandoned areas and wasteland, China. The cytogenetic toxic effects of gold mine wastelands environment on the chromosome and micronucleus were analyzed by genetic methods. The results showed that abundances of Au and Au-associated heavy metal elements such as Cu, As, Cd, Pb and Hg in soils, plants and the pigments in those abandoned mine areas were much higher than those in the background region. The cell structures of the plants in the abandoned mine areas were anomalous and aberrant, and there were many nano-metal particles diffused in the cells. Moreover, the heavy metal elements in those abandoned mine areas had entered the ultrastructure and caused toxicities to the organism.

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“…Whereas, the influence of the heavy metals on the content of chlorophylls in lichen species have been determined by Chettri et al (1998), Bačkor & Zetikova (2003) and on carotenoids . The light intensity investigated Czeczuga et al (2004b) and Bačkor et al (2006), and osmotic stress Vaczi & Bartak (2006).…”

Section: Introductionmentioning

confidence: 99%

Chromatic adaptation in lichen phyco- and photobionts

2010

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The effect of light quality on the photosynthetic pigments as chromatic adaptation in 8 species of lichens were examined. The chlorophylls, carotenoids in 5 species with green algae as phycobionts (Cladonia mitis, Hypogymnia physodes, H. tubulosa var. tubulosa and subtilis, Flavoparmelia caperata, Xanthoria parietina) and the chlorophyll a, carotenoids and phycobiliprotein pigments in 3 species with cyanobacteria as photobionts (Peltigera canina, P. polydactyla, P. rufescens) were determined. The total content of photosynthetic pigments was calculated according to the formule and particular pigments were determined by means CC, TLC, HPLC and IEC chromatography. The total content of the photosynthetic pigments (chlorophylls, carotenoids) in the thalli was highest in red light (genus Peltigera), yellow light (Xanthoria parietina), green light (Cladonia mitis) and at blue light (Flavoparmelia caperata and both species of Hypogymnia). The biggest content of the biliprotein pigments at red and blue lights was observed. The concentration of C-phycocyanin increased at red light, whereas C-phycoerythrin at green light. In Trebouxia phycobiont of Hypogymnia and Nostoc photobiont of Peltigera species the presence of the phytochromes was observed.

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The effect of Cu, Zn and Pb on the chlorophyll content of the lichens Cladonia convoluta and Cladonia rangiformis

Cited by 133 publications

References 28 publications

Bioaccumulation and oxidative stress impact of Pb, Ni, Cu, and Cr heavy metals in two bryophyte species, Pleurochaete squarrosa and Timmiella barbuloides

Bioaccumulation and oxidative stress impact of Pb, Ni, Cu, and Cr heavy metals in two bryophyte species, Pleurochaete squarrosa and Timmiella barbuloides

Geochemistry and genotoxicity of the heavy metals in mine-abandoned areas and wasteland in the Hetai goldfields, Guangdong Province, China

Chromatic adaptation in lichen phyco- and photobionts

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