Accumulation of heavy metals using Sorghum sp.

Soudek, Petr; Vaňková, Radomı́ra; Song, Jian; Vaněk, Tomáš

doi:10.1016/j.chemosphere.2013.09.079

Cited by 111 publications

(45 citation statements)

References 78 publications

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“…Similar results were found by Soudek et al (2014) who studied the accumulation of Cd and Zn on Sorgum sp. According to Baker and Brooks (1989) criterion, S. bicolor and C. tinctorius cannot be considered as Pb, Ni or Zn hyperaccumulators as the concentration of Ni, Pb and Zn were \1000 lg g -1 dw for Ni and Pb, and \10,000 lg g -1 dw for Zn in their leaves.…”

Section: Heavy Metal Content Uptake and Translocation Factorsupporting

confidence: 76%

Potential use of Sorghum bicolor and Carthamus tinctorius in phytoremediation of nickel, lead and zinc

Chami

Amer

Bitar

et al. 2015

Int. J. Environ. Sci. Technol.

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Metals are very common contaminants in the soil. High-yielding biomass crops offer good potential for the phytoremediation of soils contaminated with heavy metals. Biomass fuel crops grown on contaminated land have several advantages as site remediation combined with bioenergy production. In this context, two energy crops, Sorghum bicolor and Carthamus tinctorius, were grown hydroponically to assess their potential use in phytoremediation of nickel (Ni), lead (Pb) and zinc (Zn) and biomass production. The experiment was carried out in a growth chamber using half-strength Hoagland's solution spiked separately with five concentrations for Ni, Pb and Zn (between 5 and 100 mg L -1 ). Shoot and root biomass were determined and analyzed for their metals contents. Results showed that the tested plants were able to uptake Ni, Pb and Zn. Furthermore, roots accumulated more metals than shoots. Ni seems to be more toxic than Zn and Pb. In fact, both species were unable to grow at Ni concentration above 10 mg L -1 . Metal toxicity ranked as follows: Ni [ Zn [ Pb. High toxicity symptoms and biomass reduction were observed at concentrations of Pb and Zn above 25 mg L -1 for both species. S. bicolor was more efficient than C. tinctorius in metal uptake due to the high biomass production and the relatively high shoot concentration of metal. S. bicolor could be successfully used in phytoremediation applications in marginal soils with moderately heavy metal contamination. However, results obtained through the hydroponic experiment need to be confirmed by field experiments.

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Section: Heavy Metal Content Uptake and Translocation Factorsupporting

confidence: 76%

Potential use of Sorghum bicolor and Carthamus tinctorius in phytoremediation of nickel, lead and zinc

Chami

Amer

Bitar

et al. 2015

Int. J. Environ. Sci. Technol.

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“…Previous studies on the resistance and accumulation of cadmium by Sorghum bicolor plants demonstrated that sorghum is tolerant to cadmium at a concentration of 0.5 mM (Epelde et al 2009;Kuriakose and Prasad 2008;Marchiol et al 2007;Soudek et al 2014). In our experiments on the cultivation of sorghum in quartz sand contaminated with 70 μM cadmium, we observed clearly the toxic effects of the heavy metal.…”

Section: Discussionmentioning

confidence: 97%

“…The authors suggested that carotenoids might be involved in protective mechanisms to counteract the absorption and translocation of cadmium in the plant. Analysis of the reported data shows that the inhibiting effect of cadmium on photosynthetic pigments depends on the concentration of metal ions in the medium (Soudek et al 2014;Wani and Khan 2013).…”

Section: Discussionmentioning

confidence: 98%

“…)], a heat-loving, drought-resistant, salt-tolerant crop that has universal use in agriculture and industry. This plant is also widely used in experiments on the phytoremediation of heavy metal contamination of soil (Marchiol et al 2007;Soudek et al 2014;Zhuang et al 2009). The objective of our research was to elucidate the influence of the cadmiumresistant bacterial inoculant Rhodococcus ruber on the growth and activity of some antioxidative and lignification enzymes of sorghum under cadmium stress.…”

Section: Introductionmentioning

confidence: 99%

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Effect of cadmium stress and inoculation with a heavy-metal-resistant bacterium on the growth and enzyme activity of Sorghum bicolor

Muratova

Lyubun

German

et al. 2015

Environ Sci Pollut Res

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In this study, the influence of the heavy-metal-resistant rhizobacterial inoculant Rhodococcus ruber N7 on the growth and enzyme activity of Sorghum bicolor (L.) Moench. under cadmium stress was investigated in quartz sand pot experiments. The effect of cadmium and bacterium on the plant biomass accumulation, photosynthetic pigments, protein content, and the activities of plant-tissue enzymes such as peroxidase, laccase, and tyrosinase were estimated. It was shown that the presence of cadmium in the sand influenced the roots to a greater extent than it influenced the aerial parts of sorghum. This is manifested as increased protein content, reduced activity of peroxidase, and increased activity of laccase. Compared with cadmium stress, inoculation of plants with rhizobacterium R. ruber N7 has a stronger (and often opposite) effect on the biochemical parameters of sorghum, including a decrease in the concentration of protein in the plant, but increased the activity of peroxidase, laccase, and tyrosinase. Under cadmium contamination of sand, R. ruber N7 successfully colonizes the roots of Sorghum bicolor, survives in its root zone, and contributes to the accumulation of the metal in the plant roots, thereby reducing the concentration of the pollutant in the environment.

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“…Selection of appropriate plant species, i.e., metal-tolerant plants with high biomass production and known agronomic techniques, is a crucial requirement for effective phytoremediation. Notably, the above mentioned conditions are met by the most widely used energy crop, Sorghum bicolor (Soudek et al 2014). Moreover, Sorghum bicolor is an important C 4 crop due to its wide use as a food and feed.…”

Section: Introductionmentioning

confidence: 99%

Leaf proteome characterization in the context of physiological and morphological changes in response to copper stress in sorghum

et al. 2016

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Copper (Cu) is an essential micronutrient required for normal growth and development of plants; however, at elevated concentrations in soil, copper is also generally considered to be one of the most toxic metals to plant cells due to its inhibitory effects against many physiological and biochemical processes. In spite of its potential physiological and economical significance, molecular mechanisms under Cu stress has so far been grossly overlooked in sorghum. To explore the molecular alterations that occur in response to copper stress, the present study was performed in ten-day-old Cu-exposed leaves of sorghum seedlings. The growth characteristics were markedly inhibited, and ionic alterations were prominently observed in the leaves when the seedlings were exposed to different concentrations (0, 100, and 150 µM) of CuSO4. Using two-dimensional gels with silver staining, 643 differentially expressed protein spots (≥1.5-fold) were identified as either significantly increased or reduced in abundance. Of these spots, a total of 24 protein spots (≥1.5-fold) from Cu-exposed sorghum leaves were successfully analyzed by MALDI-TOF-TOF mass spectrometry. Of the 24 differentially expressed proteins from Cu-exposed sorghum leaves, 13 proteins were up-regulated, and 11 proteins were down-regulated. The abundance of most identified protein species, which function in carbohydrate metabolism, stress defense and protein translation, was significantly enhanced, while that of another protein species involved in energy metabolism, photosynthesis and growth and development were severely reduced. The resulting differences in protein expression patterns together with related morpho-physiological processes suggested that these results could help to elucidate plant adaptation to Cu stress and provide insights into the molecular mechanisms of Cu responses in C4 plants.

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Accumulation of heavy metals using Sorghum sp.

Cited by 111 publications

References 78 publications

Potential use of Sorghum bicolor and Carthamus tinctorius in phytoremediation of nickel, lead and zinc

Potential use of Sorghum bicolor and Carthamus tinctorius in phytoremediation of nickel, lead and zinc

Effect of cadmium stress and inoculation with a heavy-metal-resistant bacterium on the growth and enzyme activity of Sorghum bicolor

Leaf proteome characterization in the context of physiological and morphological changes in response to copper stress in sorghum

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