Lead contamination reduces chlorophyll biosynthesis and genomic template stability in Brassica rapa L.

Cenkci, Süleyman; Çiğerci, İbrahim Hakkı; Yıldız, Mustafa; Özay, Cennet; Bozdağ, Ahmet; Terzi, Hakan

doi:10.1016/j.envexpbot.2009.10.001

Cited by 200 publications

(108 citation statements)

References 43 publications

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“…Yakhin et al (2009) also observed that the effect of cadmium acetate was manifested in a considerable decrease in the content of phytohormones-cytokinins (isopentenyl adenine (iP), isopentenyl adenosine (iPA), zeatin, zeatin riboside, dehydrozeatin and dehydrozeatin riboside), IAA and ABA both in roots and sprouts of wheat seedlings. On the other hand, many researchers reported an increase in the level of ABA under exposure to heavy metals such as lead (Atici et al 2005;Cenkci et al 2010). …”

Section: Assay Of Lead Content In Different Plant Partsmentioning

confidence: 99%

Nitric Oxide Increases Pb Tolerance by Lowering Pb Uptake and Translocation as well as Phytohormonal Changes in Cowpea (Vigna unguiculata (L.) Walp.)

Sadeghipour¹

2017

JSM

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Section: Assay Of Lead Content In Different Plant Partsmentioning

confidence: 99%

Nitric Oxide Increases Pb Tolerance by Lowering Pb Uptake and Translocation as well as Phytohormonal Changes in Cowpea (Vigna unguiculata (L.) Walp.)

Sadeghipour¹

2017

JSM

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“…There is little information on how lead may affect photo synthesis, but it can reduce chlorophyll content and photosynthetic rate affecting the photosystem II (Pinchasov et al 2006, Cenkci et al 2010. In rice plants lead promotes an increase in membrane peroxidations and in the activity of antioxidant enzymes (Verma and Dubey 2003).…”

Section: Introductionmentioning

confidence: 99%

Lead tolerance of water hyacinth (Eichhornia crassipes Mart. - Pontederiaceae) as defined by anatomical and physiological traits

Pereira

Castro

Oliveira

et al. 2014

An. Acad. Bras. Ciênc.

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This study aimed at verifying the lead tolerance of water hyacinth and at looking at consequent anatomical and physiological modifications. Water hyacinth plants were grown on nutrient solutions with five different lead concentrations: 0.00, 0.50, 1.00, 2.00 and 4.00 mg L -1 by 20 days. Photosynthesis, transpiration, stomatal conductance and the Ci/Ca rate were measured at the end of 15 days of experiment. At the end of the experiment, the anatomical modifications in the roots and leaves, and the activity of antioxidant system enzymes, were evaluated. Photosynthetic and Ci/Ca rates were both increased under all lead treatments. Leaf anatomy did not exhibit any evidence of toxicity effects, but showed modifications of the stomata and in the thickness of the palisade and spongy parenchyma in the presence of lead. Likewise, root anatomy did not exhibit any toxicity effects, but the xylem and phloem exhibited favorable modifications as well as increased apoplastic barriers. All antioxidant system enzymes exhibited increased activity in the leaves, and some modifications in roots, in the presence of lead. It is likely, therefore, that water hyacinth tolerance to lead is related to anatomical and physiological modifications such as increased photosynthesis and enhanced anatomical capacity for CO 2 assimilation and water conductance.

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“…Being a way of qualitative measurement of genotoxic effects, GTS is related to the level of DNA damage and also efficacy of DNA repair and replication (Atienzar et al 1999;Liu et al 2005;Cenkci et al 2010;Erturk et al 2012). GTS was used for comparing the changes in RAPD profiles, where generally in this study, GTS values tended to decrease with increasing concentrations of metal treatments.…”

Section: Resultsmentioning

confidence: 82%

Mineral nutrient imbalance, total antioxidants level and DNA damage in common bean (Phaseolus vulgaris L.) exposed to heavy metals

Ackova

Panovska

Ruskovska

et al. 2013

Physiol Mol Biol Plants

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The present study aimed to analyze the biological effects induced by bioaccumulation of metals in common bean (Phaseolus vulgaris L.). Effects of mineral nutrient imbalance, total antioxidants level and DNA damage induced by accumulation of heavy metals, were investigated in bean seedlings treated with two selected metal concentrations for 7 days. Metal content is analyzed by inductively coupled plasma -atomic emission spectrometer (ICP-AES), for total antioxidants level assessment the Ferric-Reducing Antioxidant Power (FRAP) assay is used and Random Amplified Polymorphic DNA (RAPD) method was applied for investigation of DNA damages. The increasing metal concentration in the treatment medium changed synchronously metal content in samples, and decreased total antioxidant activity in all samples with exception only for samples treated with Ni and Cd. The obtained "DNA fingerprints" demonstrated that the increasing metal concentrations induced changes in RAPD profiles (disappearance and/or appearance of bands in comparison with untreated control samples). The highest number of missing bands was observed in samples treated with zinc (total 4 bands) and nickel (total 4 bands) at both concentrations. These results suggested that mineral nutrient imbalance is involved in changes of antioxidant levels and DNA damages of the seedlings, which may help to understand the mechanism of metal toxicity in plants.

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Lead contamination reduces chlorophyll biosynthesis and genomic template stability in Brassica rapa L.

Cited by 200 publications

References 43 publications

Nitric Oxide Increases Pb Tolerance by Lowering Pb Uptake and Translocation as well as Phytohormonal Changes in Cowpea (Vigna unguiculata (L.) Walp.)

Nitric Oxide Increases Pb Tolerance by Lowering Pb Uptake and Translocation as well as Phytohormonal Changes in Cowpea (Vigna unguiculata (L.) Walp.)

Lead tolerance of water hyacinth (Eichhornia crassipes Mart. - Pontederiaceae) as defined by anatomical and physiological traits

Mineral nutrient imbalance, total antioxidants level and DNA damage in common bean (Phaseolus vulgaris L.) exposed to heavy metals

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