Metal accumulation by sunflower (Helianthus annuus L.) and the efficacy of its biomass in enzymatic saccharification

Dhiman, Saurabh Sudha; Zhao, Xin; Li, Jinglin; Kim, Dong-Wook; Kalia, Vipin Chandra; Kim, In-Won; Kim, Jae Young; Lee, Jung-Kul

doi:10.1371/journal.pone.0175845

Cited by 39 publications

(21 citation statements)

References 43 publications

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“…This study revealed that Ocimum basilicum L. plants in metal stress conditions had a great phytostabilization potential (Dinu et al, 2020). Dhiman et al (2017) in their study demonstrated the hyperaccumulation capacity of sunflower (Helianthus annuus L.) biomass by cultivating these plants in various concentrations of metal contaminants. Sunflowers were grown in soils contaminated with high levels of heavy metals (10-2000 mg/kg dry soil).…”

Section: Discussionmentioning

confidence: 95%

Bioremoval of hazardous cobalt, nickel, chromium, copper and cadmium compounds from contaminated soil by Nicotiana tabacum plants and associated microbiome

et al. 2021

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Contamination of soils with heavy metals leads to reduction of soil fertility, destruction of natural ecosystems and detrimental effects on the health of society by increasing content of metals in the food chains from microorganisms to plants, animals and humans. Bioremediation is one of the most promising and cost-effective methods of cleaning soils polluted with toxic metals. According to current researchers, microorganisms and plants have the genetic potential to remove toxic metals from contaminated sites. The method of thermodynamic prediction was used to theoretically substantiate the mechanisms of interaction of soil microorganisms and plants with heavy metals. According to the our prediction, exometabolite chelators of anaerobic microorganisms may increase the mobility of metals and thereby contribute to the active transport of metals and their accumulation in plants. Plants of Nicotiana tabacum L. of Djubek cultivar were used as plant material for the current investigation. The examined toxicants were heavy metals, namely cobalt (II), nickel (II), chromium (VI), copper (II) and cadmium (II). The aqueous solutions of metal salts were added to the boxes after two months of plants growing to the final super-high concentration – 500 mg/kg of absolutely dry weight of soil. Quantitative assessments of copper and chromium-resistant microorganisms were made by cultivation on agar nutrient medium NA with a gradient of Cu(II) and Cr(VI). The concentration of metals in soil and plant material (leaves, stems and roots) was determined by atomic absorption method. The study revealed that heavy metals inhibited the growth of the examined tobacco plants. This was expressed by the necrosis of plant tissues and, ultimately, their complete death. Despite this, all investigated heavy metals were accumulated in plant tissues during 3–7 days before death of plants. The uptake of metals was observed in all parts of plants – leaves, stems and roots. The highest concentrations of Co(II), Ni(II), Cd(II), Cr(VI) were found in the leaves, Cu(II) – in the roots. The results show that the bioremoval efficiency of the investigated metals ranged 0.60–3.65%. Given the super-high initial concentration of each of the metals (500 mg/kg), the determined removal efficiency was also high. Cadmium was the most toxic to plants. Thus, the basic points of the thermodynamic prognosis of the possibility of accumulation of heavy metals by phytomicrobial consortium were experimentally confirmed on the example of N. tabacum plants and metal-resistant microorganisms. The study demonstrated that despite the high initial metals concentration, rate of damage and death of plants, metals are accumulated inplant tissues in extremely hight concentrations. Soil microorganisms were observed to have high adaptation potencial to Cu(II) and Cr(VI). In anaerobic conditions, microorganisms presumably mobilize heavy metals, which later are absorbed by plants. The obtained results are the basis for the development of environmental biotechnologies for cleaning contaminated soils from heavy metal compounds.

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Section: Discussionmentioning

confidence: 95%

Bioremoval of hazardous cobalt, nickel, chromium, copper and cadmium compounds from contaminated soil by Nicotiana tabacum plants and associated microbiome

et al. 2021

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“…Quantitative analysis of metals in specimens from metallicolous populations indicates that they are present in generative organs (flowers and fruits), although metals are generally at a much lower level than in vegetative tissues (e.g. Dhiman et al 2017;Godzik 1993;Mesjasz-Przyby lowicz et al 2001). In plants from metallicolous sites, metal uptake, distribution and deposition depend on the strategy that plants have evolved.…”

Section: Discussionmentioning

confidence: 99%

Germline development and seed set of metallophyte Biscutella laevigata L. (Brassicaceae).

Kwiatkowska

Kłosowska

Kurczyńska

2020

Preprint

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The costs of Biscutella laevigata adaptation, a facultative metallophyte, to an environment polluted with heavy metals were established by analyzing the differences in embryological processes between plants from two populations in Southern Poland (a mountain, in the Tatra Mountains and calamine, in Boles law). Disturbances in male and female lineage development and degeneration processes occurred in the anthers and ovules of plants from both populations, but with a higher frequency in the calamine population where A part of stamens/anthers and ovules in flowers were in a stage of degenertion. which could be interpreted as a strategy to save resources limited by the environment. The distribution of high-esterified homogalacturonan detected by LM20 antibody in the cell walls of embryos from the calamine population could be part of a resistance/defense system. The results from both populations indicate that B. laevigata has already developed adaptation/tolerance, enabling maintenance of the calamine population over time. Tolerant species could be an important source for revitalization and/or phytoremediation of polluted environments.

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“…Shoots and seed hulls can be merged with other lots and used by various sectors processing non-food crops such as (1) biorefineries for bio-oil (Casoni et al, 2015), biofuel (Ziebell et al, 2013;Zhao et al, 2016) and bioethanol (Dhiman et al, 2017) via the production of fermentable sugars (Ruiz et al, 2013;Liguori et al, 2016;Tavares et al, 2016), (2) bioconversion into branched-chain fatty acids (Dulermo et al, 2016) (3) solid fuel production (Alaru et al, 2013), (4) syngas and biogas production (Zabaniotou et al, 2010;Graß et al, 2013;Hesami et al, 2015), (5) energy production by co-firing with coal (Kułazynski et al, in press), (6) organic fertilizers for marginal land and Cu-deficient soils as compost or biochar amendment (Evangelou et al, 2015;Colantoni et al, 2016;Saleh et al, 2016); and (7) insulation ecomaterial and biocomposites (Mati-Baouche et al, 2016;Liu et al, 2017;Brouard et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Phytomanagement and Remediation of Cu-Contaminated Soils by High Yielding Crops at a Former Wood Preservation Site: Sunflower Biomass and Ionome

et al. 2018

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This long-term field trial aimed at remediating a Cu-contaminated soil to promote crop production and soil functions at a former wood preservation site. Twenty-eight field plots with total topsoil Cu in the 198-1,169 mg kg −1 range were assessed. Twenty-four plots (OMDL) were amended in 2008 with a compost (made of pine bark chips and poultry manure, OM, 5% w/w) and dolomitic limestone (DL, 0.2%), and thereafter annually phytomanaged with a sunflower-tobacco crop rotation. In 2013, one untreated plot (UNT) was amended with a green waste compost (GW, 5%) whereas 12 former OMDL plots received a second compost dressing using this green waste compost (OM2DL, 5%). In 2011, one plot was amended with the Carmeuse basic slag (CAR, 1%) and another plot with a P-spiked Linz-Donawitz basic slag (PLD, 1%). Thus six soil treatments, i.e., UNT, OMDL, OM2DL, GW, CAR, and PLD, were cultivated in 2016 with sunflower (Helianthus annuus L. cv Ethic). Shoots were harvested and their ionome analyzed. At high soil Cu contamination, the 1M NH 4 NO 3-extractable vs. total soil Cu ratio ranked in decreasing order: Unt (2.35) > CAR (1.02), PLD (0.83) > GW (0.58), OMDL (0.44), OM2DL (0.37), indicating a lower Cu extractability in the compost-amended plots. All amendments improved the soil nutrient status and the soil pH, which was slightly acidic in the UNT soil. Total organic C and N and extractable P contents peaked in the OM2DL soils. Both OMDL and OM2DL treatments led to higher shoot DW yields and Cu removals than the GW, CAR, and PLD treatments. Shoot DW yields decreased as total topsoil Cu rose in the OMDL plots, on the contrary to the OM2DL plots, demonstrating the benefits to repeat compost application after 5 years. Shoot Cu concentrations notably of OMDL and OM2DL plants fitted into their common range and can be used by biomass Mench et al. Phytomanagement of Cu-Contaminated Soils processing technologies and oilseeds as well. In overall, there is a net gain in soil physico-chemical properties and underlying soil functions. HIGHLIGHTS-Compost incorporated into Cu-contaminated soils improves the sunflower growth.-Soil organic matter increases in compost-amended soils.-Extractable soil Cu decreases in compost-amended soils.-Shoot Cu removal by sunflower reaches 26-88 g Cu ha −1 year −1 .

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Metal accumulation by sunflower (Helianthus annuus L.) and the efficacy of its biomass in enzymatic saccharification

Cited by 39 publications

References 43 publications

Bioremoval of hazardous cobalt, nickel, chromium, copper and cadmium compounds from contaminated soil by Nicotiana tabacum plants and associated microbiome

Bioremoval of hazardous cobalt, nickel, chromium, copper and cadmium compounds from contaminated soil by Nicotiana tabacum plants and associated microbiome

Germline development and seed set of metallophyte Biscutella laevigata L. (Brassicaceae).

Phytomanagement and Remediation of Cu-Contaminated Soils by High Yielding Crops at a Former Wood Preservation Site: Sunflower Biomass and Ionome

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