Heavy metal accumulation and tolerance of energy grass (Elymus elongatus subsp. ponticus cv. Szarvasi-1) grown in hydroponic culture

Sipos, Gyula; Solti, Ádám; Czech, Viktória; Vashegyi, Ildikó; Tóth, Brigitta; Cseh, E.; Fodor, Ferenc

doi:10.1016/j.plaphy.2013.04.006

Cited by 30 publications

(17 citation statements)

References 53 publications

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“…This reduction under stress condition may be attributed to the reduced stomatal pore size that induces lower photosynthetic rate (Elloumi et al, 2014;Zouari et al, 2016). Sipos et al (2013) showed that the lower Chl concentration may have resulted in lower photosynthetic performance that required a lower gas exchange rate leading to stomatal closure. Hence, strong decrease in leaf conductance of plants grown in SS-treated soil was detected.…”

Section: Discussionmentioning

confidence: 99%

Effects of sewage sludge on bio-accumulation of heavy metals in tomato seedlings

et al. 2017

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The proposal to use sewage sludge (SS) on agricultural fields as a sustainable way to dispose of the waste is based on its high organic and nutrients content. However, the presence of heavy metals (HMs) in sludge can contaminate crops and accumulate in the food chain. The aim of this study was to assess changes in soil fertility, biochemical responses of tomato (Solanum lycopersicum L. cv. Rio Grande) seedlings and the availability of HMs with increased rate application of SS (0, 2.5, 5 and 7.5%). Leaf chlorophyll content, nutritional status, proline, membrane peroxidation, stomatal conductance and HM accumulation were investigated. Results showed that the soil pH decreased, whereas soil salinity, organic carbon, total N, available P and exchangeable Na, Ca, K and HM content increased significantly with increasing application rates of SS. Among the three HMs (Zn, Cu and Cr), Zn had the highest capacity for transferring from soil into plants. Low metal translocation was observed from roots to leaves. The 7.5% SS dose decreased biomass production and caused a decline in chlorophyll content and stomatal conductance. However, lipid peroxidation and proline contents increased. Therefore, the use of 2.5 and 5% doses of sewage sludge in agriculture would be an efficient and costeffective method to restore the fertility of soil and an environment-friendly solution for disposal problems.Additional key words: sewage sludge amendment; soil fertility; biochemical responses; Solanum lycopersicum.

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Section: Discussionmentioning

confidence: 99%

Effects of sewage sludge on bio-accumulation of heavy metals in tomato seedlings

et al. 2017

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“…These grasses include Chrysopogon zizanioides , Arundo donax , Pennisetum americanum, Miscanthus sinensis , Elymus elongatus subsp. and Panicum virgatum ( Reed et al, 1999 ; Sabeen et al, 2013 ; Sipos et al, 2013 ; Ondo et al, 2014 ; Zhang et al, 2014 ; Firmin et al, 2015 ). Switchgrass (Panicum virgatum ), a perennial warm season rhizomatous grass, originated in North America and can be used to produce biofuels, bioethanol and methane ( Schmer et al, 2008 ; Koçar & Civaş, 2013 ; Wu et al, 2015 ; Kou et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

The enhancement by arbuscular mycorrhizal fungi of the Cd remediation ability and bioenergy quality-related factors of five switchgrass cultivars in Cd-contaminated soil

Sun

Xie

Zheng

et al. 2018

PeerJ

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A greenhouse experiment was carried out to investigate the effects of arbuscular mycorrhizal fungi (AMF) on the growth, P and Cd concentrations and bioenergy quality-related factors of five cultivars of switchgrass, including three lowland cultivars (Alamo (Ala), Kanlow (Kan), Performer (Per)) and two highland cultivars (Blackwell (Bw), Summer (Sum)), with 0, 1 and 10 mg/kg Cd addition levels. The results showed that AMF inoculation notably increased the biomass and P concentrations of all the cultivars. The Cd concentrations in the roots were higher than those in the shoots of all cultivars irrespective of inoculation, but the AMF had different effects on Cd accumulation in highland and lowland cultivars. AMF inoculation decreased the shoot and root concentrations in Ala and Kan, increased the shoot and root concentrations of Cd in Bw and Sum, and increased shoot Cd concentrations and decreased root Cd concentrations in Per. The highest Cd concentrations were detected in the roots of Bw and in the shoots of Sum with AMF symbiosis. Bw contained the highest total extracted Cd which was primarily in the roots. Ala had the second highest extracted Cd in the shoots, reaching 32% with 1 mg/kg of added Cd, whereas Sum had the lowest extracted Cd. AMF symbiosis had varied effects on bioenergy quality-related factors: for example, AMF decreased the ash lignin content in Ala and the C/N in Sum, increased the nitrogen, gross calorie values, and maintained the hemicellulose and cellulose contents in all cultivars with all tested concentrations of Cd. A principal component analysis (PCA) showed that AMF inoculation could enhance, weaken or transform (positive-negative, PC1-PC2) the correlations of these factors with the principle components under Cd stress. Therefore, AMF symbiosis enhanced the growth of different cultivars of switchgrass, increased/decreased Cd accumulation, promoted Cd extraction, and regulated the bioenergy quality-related factors in Cd-polluted areas. Bw is a suitable cultivar for phytostabilization due to high root Cd stabilization, whereas Ala is an appropriate cultivar for phytoremediation of less polluted areas because of its high Cd extraction and excellent bioenergy quality.

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“…Moreover, Cd 2+ ions may also cause a decrease in the uptake of other micro-and macro-elements important for plant development, such as Zn, Mn or Ca (Jiang et al, 2004;Suzuki et al, 2005;Wang et al, 2007). Unlike Fe, the reduction in the uptake of micro-and macronutrients takes place by competition with Cd 2+ ions in transporter systems for absorption by the roots (Nedjimi & Daoud, 2009;Astolfi et al, 2012;Sipos et al, 2013), which may also be important under in vitro conditions. Thus, the stimulation of S. viminalis growth with different Streptomyces sp.…”

Section: Discussionmentioning

confidence: 99%

Microbial assisted phytoextraction of Cd2+ by Salix viminalis under in vitro culture conditions

Złoch¹,

Furtado²,

Trejgell³

et al. 2020

Dendrobiology

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Microbially assisted phytoremediation is considered as the most promising eco-friendly solution for recultivation of heavy metal polluted soils. In vitro experiments can be favorable systems that allow assessing compatibility and efficiency of both partners (e.g. plant-microorganism) which reduces time and space in the initial stages of this technology. The main objective of this study was: (1) to calculate the Cd 2+ accumulation factors (e.g. BCF, Ti, AF) using willow (Salix viminalis L.) inoculated with three Streptomyces sp. strains under in vitro conditions and (2) to compare obtained results with that derived from pot experiments by Złoch et al. (2017). Our results reveal significantly increase in Cd 2+ accumulation capacity of Streptomyces spp. inoculated willow plants, indicating microbial stimulation of phytoextraction. Additionally, inoculated plants showed higher biomass production and lower lipids peroxidation level. The results revealed significant increase of MEA, BCF, Ti, MER by Strep-1 and Strep-2 in the above-ground parts of inoculated plants. Moreover, of the three strains tested, Strep-1 (Streptomyces sp. SIIB-Zn-R8) demonstrated the highest impact on the Cd 2+ phytoextraction efficiency. In conclusion, the proposed in vitro model system allowed predicting Cd 2+ phytoextraction capacity performed using inoculated willow plants with the significant reduction of both time and space.

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Heavy metal accumulation and tolerance of energy grass (Elymus elongatus subsp. ponticus cv. Szarvasi-1) grown in hydroponic culture

Cited by 30 publications

References 53 publications

Effects of sewage sludge on bio-accumulation of heavy metals in tomato seedlings

Effects of sewage sludge on bio-accumulation of heavy metals in tomato seedlings

The enhancement by arbuscular mycorrhizal fungi of the Cd remediation ability and bioenergy quality-related factors of five switchgrass cultivars in Cd-contaminated soil

Microbial assisted phytoextraction of Cd2+ by Salix viminalis under in vitro culture conditions

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