Acute Lethal Toxicity of Heavy Metals to the Seeds of Plants of High Importance to Humans

Pokorska-Niewiada, Kamila; Rajkowska-Myśliwiec, Monika; Protasowicki, M.

doi:10.1007/s00128-018-2382-9

Cited by 33 publications

(12 citation statements)

References 12 publications

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“…). Cr(VI) is a toxic metal and after its entry into plants it initiates a ranges of unfavorable changes (Eleftheriou et al , Pokorska‐Niewiada et al , Sinha et al , Srivastava et al ) and thus, the obtained results are justifiable. We have also noticed that Cr(VI) significantly declined qP and the amount of total chlorophyll (Table , Fig.…”

Section: Discussionmentioning

confidence: 96%

“…However, it has been reported that Cr(VI) is transported through sulfate transporters in plants (Kaszycki et al 2005, Kim et al 2006. After its entry in the plant system, Cr(VI) creates wide ranges of physiological, biochemical and molecular alterations starting from seed germination to plant death (Eleftheriou et al 2015, Pokorska-Niewiada et al 2018, Sinha et al 2018, Srivastava et al 2019. Thus, continuous investigation of the toxicological impact of Cr(VI) in plants is needed in order to develop strategies for its toxicity mitigation.…”

Section: Introductionmentioning

confidence: 99%

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Glutathione and hydrogen sulfide are required for sulfur‐mediated mitigation of Cr(VI) toxicity in tomato, pea and brinjal seedlings

Kushwaha

Singh

2019

Physiologia Plantarum

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In plants, investigation on heavy metal toxicity and its mitigation by nutrient elements have gained much attention. However, mechanism(s) associated with nutrients‐mediated mitigation of metal toxicity remain elusive. In this study, we have investigated the role and interrelation of glutathione (GSH) and hydrogen sulfide (H2S) in the regulation of hexavalent chromium [Cr(VI)] toxicity in tomato (Solanum lycopersicum), pea (Pisum sativum) and brinjal (Solanum melongena) seedlings, supplemented with additional sulfur (S). The results show that Cr(VI) significantly reduced growth, total chlorophyll and photosynthetic quantum yield of tomato, pea and brinjal seedlings which was accompanied by enhanced intracellular accumulation of Cr(VI) in roots. Moreover, Cr(VI) enhanced the generation of reactive oxygen species in the studied vegetables, while antioxidant defense system exhibited differential responses. However, additional supply of S alleviated Cr(VI) toxicity. Interestingly, addition of l‐buthionine sulfoximine (BSO, a glutathione biosynthesis inhibitor) further increased Cr(VI) toxicity even in the presence of additional S but GSH addition reverses the effect of BSO. Under similar condition, endogenous H2S, l‐cysteine desulfhydrase (DES) activity and cysteine content did not significantly differ when compared to controls. Hydroxylamine (HA, an inhibitor of DES) also increased Cr(VI) toxicity even in the presence of additional S but sodium hydrosulfide (NaHS, an H2S donor) reverses the effect of HA. Moreover, Cr(VI) toxicity amelioration by NaHS was reversed by the addition of hypotaurine (HT, an H2S scavenger). Taken together, the results show that GSH which might be derived from supplied S is involved in the mitigation of Cr(VI) toxicity in which H2S signaling preceded GSH biosynthesis.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Glutathione and hydrogen sulfide are required for sulfur‐mediated mitigation of Cr(VI) toxicity in tomato, pea and brinjal seedlings

Kushwaha

Singh

2019

Physiologia Plantarum

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“…A 6-point calibration curve was prepared for each metal and comparing with the nominal concentrations, the measured metal concentrations in the prepared solutions showed good accuracy and statistical analysis con rmed no signi cant differences between the nominal and measured concentrations of metals. The ICP-AES spectrometer parameters and details of calibration curves described by Pokorska-Niewiada et al (2018). Table 1 shows the detection and quanti cation limits and actual values of MO NPs in solution (30 mg.L -1 ).…”

Section: Mo Nps Preparationmentioning

confidence: 99%

Effect of Metal Oxide Nanoparticles on Plant Enzymatic Activities Under Drought

Jahantab¹,

Farzadmehr²,

Abadi³

et al. 2021

Preprint

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The aim of this work was to study the effect of metal oxide nanoparticles (MO NPs) on enzymatic activities (EAs) of two main plant life forms under drought stress (DS). Foliar spray of silver oxide (AgO), iron oxide (FeO), zinc oxide (ZnO) and cadmium oxide (CdO) at levels of 30, 60, 90 and 120 mg.L-1 were used on aerial parts of forb Sanguisorba officinalis L. and grass Agropyron cristatum (L.) Gaertn. under DS levels of 25-100% field capacity (FC). Glutathione reductase (GR), catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) were measured after two weeks of the experiment. The results indicate that the EAs changes varied depending on the plant life form, levels of DS, type and levels of NPs. Overall, application of 30- 60 mg.L-1 MO NPs under 25-50%FC significantly reduced EAs, especially in forb (P<0.001). Higher concentration of MO NPs significantly increase EAs. A decrease in CAT (20.90%, 18.80%), POD (21.30%, 17.67%) and SOD (23.14%, 16.88%) was observed under levels of 60 mg.l-1 of ZnO NPs under 25-50%FC in forb and grass, respectively. High concentration of CdO NPs (90-120 mg.l-1) caused by increase (max= 24.0%) in EAs in both life forms under 25%FC.

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“…Cytotoxic pollutants have long-lasting noxious metabolic effects on living organisms, [13,14] eventually leading to toxicity, [15,16] and mortality. [17,18] There are several techniques that have been employed for removal of pollutants from wastewater including, amongst others, traditional filtration, coagulation/flocculation, membrane-utilizing A noticeable interest and steady rise in research studies reporting the design and assessment of smart adsorbents for sequestering aqueous metal ions and xenobiotics has occurred in the last decade. This motivates compiling and reviewing the characteristics, potentials, and performances of this new adsorbent generation's metal ion and xenobiotics sequestration.…”

Section: Introductionmentioning

confidence: 99%