Different response to Cd stress in domesticated and wild safflower (Carthamus spp.)

Pourghasemian, Nasibeh; Landberg, Tommy; Ehsanzadeh, Parviz; Greger, Maria

doi:10.1016/j.ecoenv.2018.12.052

Cited by 27 publications

(11 citation statements)

References 41 publications

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“…Sa ower is a prominent oilseed crop with its tolerance capacity against such as drought, salt, metal stress etc. (Al Chami et al, 2015;Pourghasemian et al, 2019;Çulha-Erdal et al, 2021). It has also been stated that C. tinctorius can be grown on metal-contaminated soils (Al Chami et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…It has also been stated that C. tinctorius can be grown on metal-contaminated soils (Al Chami et al, 2015). Production of sa ower is not only for food, cosmetic, pharmaceutical and dye industries but also sa ower is a substrate for multi-biofuel (ethanol, biogas, and biodiesel) production in a biore nery approach (Pourghasemian et al, 2019;Hashemi et al, 2020). Moreover, it has been reported that sa ower also may be used in phytoremediation (Al Chami et al, 2015;Pourghasemian et al, 2019), but it is poorly known the physiological responses of C. oxyacantha and C. tinctorius to heavy metal stress, especially nickel.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Physiological, photochemical, and antioxidant responses of wild and cultivated Carthamus species exposed to nickel toxicity and evaluation of their usage potential in phytoremediation

Baran

Ekmekçi

2021

Environ Sci Pollut Res

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The responses of growth, photochemical and antioxidant defence of sa ower species (Carthamus oxyacantha M. Bieb. and Carthamus tinctorius L. exposed to nickel (Ni) toxicity were investigated in the study. Fourteen-day-old seedlings were treated with excessive Ni levels [control, 0.50, 0.75 and 1.00 mM] for 7 days. The results of chlorophyll a uorescence indicated that toxic nickel exposure led to changes in speci c, phenomenological energy uxes and quantum yields in thylakoid membranes, and activities of donor and acceptor sides of photosystems. These changes resulted in a signi cant decrease in the photosynthetic performance of the species, but these negative effects of Ni were not in a level to destroy the functionality of the photosystems. At the same time, toxic Ni affected membrane integrity and the amount of photosynthetic pigments in the antenna and active reaction centers. Additionally, the accumulation of Ni was higher in roots than in stem and leaves for both species. Depending on Ni accumulation, a signi cant reduction in dry biomass of root and shoot was observed in both species.Two species could probably withstand deleterious Ni toxicity with better upregulating own protective defence systems such as antioxidant enzymes. Among of them, SOD and POD activities were increased with increasing Ni concentrations. The POD activities of both species were most prominent and consistently increased in toxic Ni levels and may be protected them from damaging effect of H 2 O 2 . When all results are evaluated as a whole, Carthamus species produced similar responses to toxicity and also both species have Bioconcentration (BCF) and Bioaccumulation factors (BF) > 1 and Translocation factor (TF) < 1 under Ni toxicity may be regarded a good indication of Ni tolerance. Consequently, it is possible to use the Carthamus species in the remediation (phytostabilization) of soils contaminated with nickel, because of their roots accumulating more nickel.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physiological, photochemical, and antioxidant responses of wild and cultivated Carthamus species exposed to nickel toxicity and evaluation of their usage potential in phytoremediation

Baran

Ekmekçi

2021

Environ Sci Pollut Res

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“…Elemental (Hg, Fe, and S) concentration in digested solution was determined based on the standard known solution of that specific element by the inductively coupled plasma mass spectrometry (ICP-MS) system (Agilent 7700, ICP-MS). In order to quantify the compartmentalization of Hg in the root cell wall and vacuole, the centrifugation techniques were performed as previously described [31]. Briefly, fresh roots were washed with ddH 2 O for three times.…”

Section: Determination Of Elemental Concentration In Root Shoot Vacmentioning

confidence: 99%

Glutathione Restores Hg-Induced Morpho-Physiological Retardations by Inducing Phytochelatin and Oxidative Defense in Alfalfa

Rahman

Kabir

Mandal

et al. 2020

Biology

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Mercury (Hg) is toxic to plants, but the effect of glutathione in Hg alleviation was never studied in alfalfa, an important forage crop. In this study, Hg toxicity showed morphological retardation, chlorophyll reduction, and PSII inefficiency, which was restored due to GSH supplementation in alfalfa plants treated with Hg. Results showed a significant increase of Hg, but Fe and S concentrations substantially decreased in root and shoot accompanied by the downregulation of Fe (MsIRT1) and S (MsSultr1;2 and MsSultr1;3) transporters in roots of Hg-toxic alfalfa. However, GSH caused a significant decrease of Hg in the shoot, while the root Hg level substantially increased, accompanied by the restoration of Fe and S status, relative to Hg-stressed alfalfa. The subcellular analysis showed a substantial deposition of Hg in the root cell wall accompanied by the increased GSH and PC and the upregulation of MsPCS1 and MsGSH1 genes in roots. It suggests the involvement of GSH in triggering PC accumulation, causing excess Hg bound to the cell wall of the root, thereby reducing Hg translocation in alfalfa. Bioinformatics analysis showed that the MsPCS1 protein demonstrated one common conserved motif linked to the phytochelatin synthase domain (CL0125) with MtPCS1 and AtMCS1 homologs. These in silico analysis further confirmed the detoxification role of MsPCS1 induced by GSH in Hg-toxic alfalfa. Additionally, GSH induces GSH and GR activity to counteract oxidative injuries provoked by Hg-induced H2O2 and lipid peroxidation. These findings may provide valuable knowledge to popularize GSH-derived fertilizer or to develop Hg-free alfalfa or other forage plants.

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“…Cell walls, on the other hand, bind to positively charged Cd, facilitating cation exchange capacity (Baliardini et al, 2016), providing another Cd retention site within the cell. Cd‐tolerant safflower relied on Cd absorption in the cell wall in a recent study (Pourghasemian et al, 2019), whereas Cd storage occurred in the vacuoles and cell walls in oilseed rape (Pourghasemian et al, 2019;Carrier et al, 2003). The Si‐mediated retention of Cd in sugar beet roots is associated with elevated Cd accumulation in cell walls rather than vacuoles, according to our ICP‐MS analysis of Cd content in vacuole and cell wall.…”

Section: Discussionmentioning

confidence: 99%

“…The elemental concentrations (Cd, Si, Fe, S, Zn, and Ca) were then determined by ICP‐MS (inductively coupled plasma mass spectrometry). In addition, the vacuole and cell wall of roots were extracted by centrifugation techniques (Pourghasemian et al, 2019). In brief, roots were homogenized with a mortar and pestle (chilled) in 1 ml extraction buffer (500 mM sucrose, 50 mM HEPES, 5.0 mM ascorbic acid, 1.0 mM DTT (dithiothreitol), 1.0% (w/v) PVP) after several washes with MiliQ water (polyvinylpyrrolidone).…”

Section: Methodsmentioning

confidence: 99%

Silicon induces metallochaperone‐driven cadmium binding to the cell wall and restores redox status through elevated glutathione in Cd‐stressed sugar beet

Kabir

Das

Rahman

et al. 2021

Physiologia Plantarum

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Cadmium (Cd) is toxic; however, whether silicon (Si) alleviates Cd toxicity was never studied in sugar beet. The study was conducted on 2‐week‐old sugar beet cultivated in the presence or absence of Cd (10 μM CdSO4) and Si (1 mM Na2SiO3) in hydroponic conditions. The morphological impairment and cellular damages observed in sugar beet upon Cd toxicity were entirely reversed due to Si. Si substantially restored the energy‐providing ability, absorbed energy flux, and electron transport toward PSII, which might be correlated with the upregulation of BvIRT1 and ferric chelate reductase activity leading to the restoration of Fe status in Cd‐stressed sugar beet. Although Si caused a reduction of shoot Cd, the root Cd substantially increased under Cd stress, a significant part of which was retained in the cell wall rather than in the root vacuole. While the concentration of phytochelatin and the expression of BvPCS3 (PHYTOCHELATIN SYNTHASE 3) showed no changes upon Si exposure, Si induced the expression of BvHIPP32 (HEAVY METAL‐ASSOCIATED ISOPRENYLATED PLANT PROTEIN 32) in the Cd‐exposed root. The BvHIPP32 and AtHIPP32 metallochaperone proteins are localized in the cell wall and they share similar sequence alignment, physiochemical properties, secondary structure, cellular localization, motif locations, domain association, and metal‐binding site (cd00371) linked to the metallochaperone‐like protein. It suggests that Si reduces the Cd level in shoot by retaining the excess Cd in the cell wall of roots due to the induction of BvHIPP32 gene. Also, Si stimulates glutathione‐related antioxidants along with the BvGST23 expression, inferring an ascorbate‐glutathione ROS detoxification pathway in Cd‐exposed plants.

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Different response to Cd stress in domesticated and wild safflower (Carthamus spp.)

Cited by 27 publications

References 41 publications

Physiological, photochemical, and antioxidant responses of wild and cultivated Carthamus species exposed to nickel toxicity and evaluation of their usage potential in phytoremediation

Physiological, photochemical, and antioxidant responses of wild and cultivated Carthamus species exposed to nickel toxicity and evaluation of their usage potential in phytoremediation

Glutathione Restores Hg-Induced Morpho-Physiological Retardations by Inducing Phytochelatin and Oxidative Defense in Alfalfa

Silicon induces metallochaperone‐driven cadmium binding to the cell wall and restores redox status through elevated glutathione in Cd‐stressed sugar beet

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