Solanum nigrum L.: A Novel Hyperaccumulator for the Phyto-Management of Cadmium Contaminated Soils

Khalid, Hinnan; Rehman, Muhammad Zia ur; Akhtar, Naeem; Muhammad, Khalid; Rizwan, Muhammad; Ali, Shafaqat; Umair, Muhammad; Sohail, Muhammad

doi:10.1016/b978-0-12-814864-8.00018-8

Cited by 15 publications

(21 citation statements)

References 140 publications

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“…Cd reduces the photosynthetic capacity of plants by devastating the enzymes of the Calvin cycle and carbohydrate metabolism and also modulates the antioxidant machinery of the plants. All these physiological changes result in decreased plant yield [ 8 , 10 , 53 , 71 ]. Cadmium is indirectly involved in the biological redox reaction, and the oxidative burst is produced by increasing the activity of NADPH oxidases, which results in the production of extracellular superoxide, peroxide, and intracellular lipid peroxidation [ 44 , 71 ].…”

Section: Discussionmentioning

confidence: 99%

“…Metal contamination issues are becoming increasingly common in China and elsewhere, with many documented cases of metal toxicity in mining industries, foundries, smelters, coal-burning power plants, and agriculture [ 1 , 2 , 3 , 4 , 5 ]. Heavy metal accumulation in soils is of great concern in agricultural production due to its adverse effects on food safety and marketability, crop growth due to phytotoxicity, and the environmental health of soil organisms [ 6 , 7 , 8 , 9 , 10 ]. In addition, heavy metal contamination of soil may pose risks and hazards to humans and the ecosystem through: Direct ingestion or contact with contaminated soil, the food chain (soil-plant-human or soil-plant-animal human), drinking of contaminated groundwater, reduction in food quality (safety and marketability) via phytotoxicity, reduction in land usability for agricultural production causing food insecurity, and land tenure problems [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

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Role of Ferrous Sulfate (FeSO4) in Resistance to Cadmium Stress in Two Rice (Oryza sativa L.) Genotypes

et al. 2020

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The impact of heavy metal, i.e., cadmium (Cd), on the growth, photosynthetic pigments, gas exchange characteristics, oxidative stress biomarkers, and antioxidants machinery (enzymatic and non-enzymatic antioxidants), ions uptake, organic acids exudation, and ultra-structure of membranous bounded organelles of two rice (Oryza sativa L.) genotypes (Shan 63 and Lu 9803) were investigated with and without the exogenous application of ferrous sulfate (FeSO4). Two O. sativa genotypes were grown under different levels of CdCl2 [0 (no Cd), 50 and 100 µM] and then treated with exogenously supplemented ferrous sulfate (FeSO4) [0 (no Fe), 50 and 100 µM] for 21 days. The results revealed that Cd stress significantly (p < 0.05) affected plant growth and biomass, photosynthetic pigments, gas exchange characteristics, affected antioxidant machinery, sugar contents, and ions uptake/accumulation, and destroy the ultra-structure of many membranous bounded organelles. The findings also showed that Cd toxicity induces oxidative stress biomarkers, i.e., malondialdehyde (MDA) contents, hydrogen peroxide (H2O2) initiation, and electrolyte leakage (%), which was also manifested by increasing the enzymatic antioxidants, i.e., superoxidase dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) and non-enzymatic antioxidant compounds (phenolics, flavonoids, ascorbic acid, and anthocyanin) and organic acids exudation pattern in both O. sativa genotypes. At the same time, the results also elucidated that the O. sativa genotypes Lu 9803 are more tolerant to Cd stress than Shan 63. Although, results also illustrated that the exogenous application of ferrous sulfate (FeSO4) also decreased Cd toxicity in both O. sativa genotypes by increasing antioxidant capacity and thus improved the plant growth and biomass, photosynthetic pigments, gas exchange characteristics, and decrease oxidative stress in the roots and shoots of O. sativa genotypes. Here, we conclude that the exogenous supplementation of FeSO4 under short-term exposure of Cd stress significantly improved plant growth and biomass, photosynthetic pigments, gas exchange characteristics, regulate antioxidant defense system, and essential nutrients uptake and maintained the ultra-structure of membranous bounded organelles in O. sativa genotypes.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Role of Ferrous Sulfate (FeSO4) in Resistance to Cadmium Stress in Two Rice (Oryza sativa L.) Genotypes

et al. 2020

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“…Toxic metal tolerance comprises several adaptive scenarios at the organelle, cellular, and plant levels to cope up with metal toxicity including overproduction of soluble sugars, free amino acids, soluble proteins and medicinally active alkaloids (Saad-Allah and Elhaak 2017), osmoprotectants and antioxidant molecules (proline, betaine, glycine, phenolic compounds, flavonoids) (Khalid et al 2019) in all plant tissues. Accordingly, it is very imperative to explore the mechanisms of Cd tolerance to ascertain which plants have ability to elicit physiological and biochemical mechanisms in response to Cd exposure.…”

Section: Introductionmentioning

confidence: 99%

Attenuating Effect of an Extract of Cd-Hyperaccumulator Solanum nigrum on the Growth and Physio-chemical Changes of Datura innoxia Under Cd Stress

Abeed

Salama

2022

J Soil Sci Plant Nutr

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Purpose The use of plant extracts obtained from plants that are highly tolerant to heavy metal toxicity has been beneficial in improving the growth of plants grown under metal toxicity conditions. A lab experiment was performed to elucidate the alleviating role of foliar applied cadmium (Cd)-hyperaccumulator Solanum nigrum (S. nigrum) extract on Datura innoxia (D. innoxia) plants grown under Cd stress (0, 50, and 100 mg Cd kg-1 soil). Methods Growth parameters, photosynthetic pigment content, osmo-metabolic compounds, reduced glutathione and phytochelatins content, oxidative damage, and lignin content and its related enzyme (cell wall-bound peroxidase, POX) were determined. Results Apart from the foliar application response of S. nigrum leaf extract (SNE) in either Cd exposed or non-Cd exposed plants, growth parameters of D. innoxia plant grown under both Cd concentrations (50 and 100 mg Cd kg-1 soil) in terms of root and shoot fresh, dry weight, length, and leaf area were noticeably diminished by 29 and 51%, 29 and 54%, 35 and 70%, 40 and 53%, 30 and 69%, 40 and 60%, and 11 and 23%, respectively, compared with untreated control plants. Foliar delivered SNE secured the photosynthetic pigment, free amino acids, soluble proteins, and soluble sugar content. Additionally, it lessened the adverse effects of Cd stress on D. innoxia plants by curtailing the content of hydrogen peroxide (H2O2) and malondialdehyde (MDA) by 28 and 27%, and 21 and 23%, respectively, compared with the plants subjected to 50 and 100 mg Cd kg-1 only. The findings herein indicated that the plant water extract and their interactions in the investigated Cd rates significantly augmented phenolics, alkaloids, reduced glutathione and phytochelatins content. Cell wall stiffening in D. innoxia indicated that lignin content and POX were significantly higher in plants exposed to 100 mg Cd kg-1 soil displaying increase values of 275 and 300%, respectively, against non-Cd treated control. The magnitude of increment imposed by Cd stress was lessened by using SNE that reflects on adequate cell growth advocated by limited lignification, in terms of lignin content, and downregulated POX activity. Owing to SNE application, root and leaves Cd contents were efficiently reduced reflecting apparent plant liveliness compared with the SNE non-treated Cd-stressed plants. Conclusions The outcomes of this study designate that foliar application of the Cd-hyperaccumulator S. nigrum leaf extract can be counted as an unconventional and innovative approach in the alleviation of Cd stress and can be employed as integrated practice when Cd-contaminated regions were exploited for sustainable agriculture of the multipurpose plants.

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“…Solanum nigrum (black nightshade) is a fast-growing herbaceous plant with high biomass production and is characterized as a Cd hyperaccumulator. It can bind Cd into its non-active parts, or couple Cd for complexation and/or stabilization into the rhizosphere by the release of root exudates, thereby preventing Cd entry into the food chain (Khalid et al 2019). Crop species belonging to Solanaceae including tomato, eggplant Solanum melongena and pepper were reported to remove considerable quantities of Pb, Cu, Zn and Cd from the soil by stabilizing these in their roots, uptake in leaves and fruits (Shilev and Babrikov 2005).…”

Section: Heavy Metal Tolerance Mechanisms In Solanaceaementioning

confidence: 99%

Functional aspects of solanaceae trichomes in heavy metal detoxification

Koul

Thomas

Karmakar³

2021

Nordic Journal of Botany

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Solanaceous plants are ubiquitous and are able to colonize degraded, abandoned and metal polluted habitats. Members of the family have evolved interesting extrinsic and intrinsic traits to combat the metal toxicity in multiple ways. Indumentum constituted mostly of trichome layer provides structural defense for both biotic stress (herbivory, oviposition, microbial pathogenesis) and abiotic stress (like drought, heat, freezing, photooxidation and UV radiation). Plants with heavy metal tolerance can accumulate toxic heavy metals in their trichomes as a part of their elemental defense detoxification strategy. Apart from the canonical functions, trichomes support ion and metal homeostasis, including the sequestration, compartmentalization, accumulation and excretion of heavy metals in many ways. The trichomes in Solanaceae are known to have a key role in the detoxification of Cd, Ni, Pb and Zn. Expressed sequence tag (EST)-based large-scale gene analysis in tobacco has indicated that trichomes are biologically active and stress-responsive structures. Trichome secretions and exudates also play an active role in metal detoxification process. Given that trichomes provide chemical defense from heavy metal stresses in the form of sequestration and extrusion, the plants having trichomes have potential role in remediation of contaminated soils. Solanaceae trichomes can serve as important model tissues that can be modified to attenuate metal toxicity, serve as environmental indicators and enhance phytoremediation potential of the family.

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Solanum nigrum L.: A Novel Hyperaccumulator for the Phyto-Management of Cadmium Contaminated Soils

Cited by 15 publications

References 140 publications

Role of Ferrous Sulfate (FeSO4) in Resistance to Cadmium Stress in Two Rice (Oryza sativa L.) Genotypes

Role of Ferrous Sulfate (FeSO4) in Resistance to Cadmium Stress in Two Rice (Oryza sativa L.) Genotypes

Attenuating Effect of an Extract of Cd-Hyperaccumulator Solanum nigrum on the Growth and Physio-chemical Changes of Datura innoxia Under Cd Stress

Functional aspects of solanaceae trichomes in heavy metal detoxification

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