NaCl improved Cd tolerance of the euhalophyte Suaeda glauca but not the recretohalophyte Limonium aureum

Zhang, Songlin; Ni, Xilu; Arif, Muhammad; Zheng, Jie; Stubbs, Annastacia; Li, Changxiao

doi:10.1007/s11104-020-04475-7

Cited by 15 publications

(12 citation statements)

References 65 publications

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“…The higher level of Cd (100 µM) caused more decline in pigments, stomatal conductance and K accumulation than the higher level of Pb (500 µM), resulting in more decline in the plant biomass. These observations reflect that even a very low concentration of Cd is toxic to plants [6]. This is the very first study regarding the combined effects of Cd and Pb on quinoa.…”

Section: Discussionsupporting

confidence: 60%

“…Moreover, it was noticed that these attributes were improved when 150 mM NaCl was supplied to quinoa growing under various levels of Cd [3] and Pb [13] stress. The possible reasons for the decline in photosynthetic pigments under Cd and Pb stress include (a) oxidative stress, (b) the direct influence of metal ions on the pigment biosynthesis pathways and (c) the replacement of magnesium with metal ions within the chlorophyll molecule [6,8,9]. Non-stomatal limitations of photosynthesis are the main reasons for the limited stomatal conductance of quinoa leaves under Pb and Cd stress [13,31] As for pigments, the stomatal conductance and growth was decreased more at the 100 µM of Cd than 500 µM of Pb level, indicating the greater toxicity of Cd than Pb under the same growth conditions.…”

Section: Discussionmentioning

confidence: 99%

“…Cadmium is very toxic even at very low concentrations, so, the uptake of Cd by plants affects their growth and normal metabolic activities [6]. Various abnormalities, such as stunted plant growth, damage to pigments and the obliteration of cell membranes and organelles, have been reported under Cd stress [3,7].…”

Section: Introductionmentioning

confidence: 99%

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Differential Uptake and Translocation of Cadmium and Lead by Quinoa: A Multivariate Comparison of Physiological and Oxidative Stress Responses

Bamagoos

Alharby

Abbas

2022

Toxics

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Contamination of soils with cadmium (Cd) and lead (Pb) has emerged as a serious environmental issue that reduces crop productivity. However, the metals tolerance and accumulation potential of quinoa (Chenopodium Quinoa Willd) under the combined stress of Cd and Pb has not yet been explored. In the present hydroponic study, the physiological and biochemical characteristics of quinoa exposed to Cd and Pb were explored. Four-week-old plants of quinoa genotype ‘Puno’ were grown under different concentrations of Cd (0, 50 and 100 µM), Pb (0, 250 and 500 µM) alone as well as in combinations. The results showed that with increasing Cd and Pb levels in the nutrient solution, the plant biomass, stomatal conductance and chlorophyll contents were decreased. However, the concurrent application of higher concentrations of Cd (100 µM) and Pb (500 µM) caused even more reduction in the plant biomass (more than 50% than the control) and physiological attributes. The combined application of Pb and Cd caused oxidative stress through an overproduction of H2O2 (10-fold) and TBARS (12.5-fold), leading to decrease in membrane stability (52%). The oxidative stress was alleviated by a 7-fold, 10-fold and 9-fold overactivation of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), respectively. An excessive uptake of Cd resulted in a limited uptake of Pb and K in the roots and shoots of quinoa plants. The Cd and Pb tolerance and uptake potential of Puno showed its ability to stabilize Cd and Pb in co-contaminated soils.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 99%

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Differential Uptake and Translocation of Cadmium and Lead by Quinoa: A Multivariate Comparison of Physiological and Oxidative Stress Responses

Bamagoos

Alharby

Abbas

2022

Toxics

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“…In view of its analgesic, hemostatic, anti-inflammatory, and antioxidant effects (21)(22)(23), it indicates that the development of the active components of L. aureum has great potential in drug application. At present, the research on L. aureum is mainly focused on the extraction, separation, and structure identification of its effective components (21,24) and the plant breeding (25). The active substances of L. aureum that have been identified were including homoeriodictyol, eriodictyol, naringenin, kaempferol, quercetin, myricetin, luteolin, myricetin-3-O-β-D-glucopyranoside, myricetin-3-O-β-D-galactopyranoside, sitosterol acetate, etc.…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Effects and Potential Molecular Mechanism of Action of Limonium aureum Extract Based on Systematic Network Pharmacology

Yang

Cheng

et al. 2022

Front. Vet. Sci.

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Oxidative stress is the redox imbalance state of organisms that involves in a variety of biological processes of diseases. Limonium aureum (L.) Hill. is an excellent wild plant resource in northern China, which has potential application value for treating oxidative stress. However, there are few studies that focused on the antioxidant effect and related mechanism of L. aureum. Thus, the present study combining systematic network pharmacology and molecular biology aimed to investigate the antioxidant effects of L. aureum and explore its underlying anti-oxidation mechanisms. First, the antioxidant activity of L. aureum extracts was confirmed by in vitro and intracellular antioxidant assays. Then, a total of 11 bioactive compounds, 102 predicted targets, and 70 antioxidant-related targets were obtained from open source databases. For elucidating the molecular mechanisms of L. aureum, the PPI network and integrated visualization network based on bioinformatics assays were constructed to preliminarily understand the active compounds and related targets. The subsequent enrichment analysis results showed that L. aureum mainly affect the biological processes involving oxidation-reduction process, response to drug, etc., and the interference with these biological processes might be due to the simultaneous influence on multiple signaling pathways, including the HIF-1 and ERBB signaling pathways. Moreover, the mRNA levels of predicted hub genes were measured by qRT-PCR to verify the regulatory effect of L. aureum on them. Collectively, this finding lays a foundation for further elucidating the anti-oxidative damage mechanism of L. aureum and promotes the development of therapeutic drugs for oxidative stress.

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“…Cadmium (Cd 2+ ) pollution presents a critical threat to ecological environment and human life [ 1 , 2 , 3 , 4 , 5 ]. The Cd 2+ contamination occurring in salt-affected soils has become an increasing environmental concern in recent years [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. Coastal areas are polluted by Cd 2+ due to rapid urbanization and industrialization.…”

Section: Introductionmentioning

confidence: 99%

Ectomycorrhizal Fungal Strains Facilitate Cd2+ Enrichment in a Woody Hyperaccumulator under Co-Existing Stress of Cadmium and Salt

Deng

Zhu

Liu

et al. 2021

IJMS

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Cadmium (Cd2+) pollution occurring in salt-affected soils has become an increasing environmental concern in the world. Fast-growing poplars have been widely utilized for phytoremediation of soil contaminating heavy metals (HMs). However, the woody Cd2+-hyperaccumulator, Populus × canescens, is relatively salt-sensitive and therefore cannot be directly used to remediate HMs from salt-affected soils. The aim of the present study was to testify whether colonization of P. × canescens with ectomycorrhizal (EM) fungi, a strategy known to enhance salt tolerance, provides an opportunity for affordable remediation of Cd2+-polluted saline soils. Ectomycorrhization with Paxillus involutus strains facilitated Cd2+ enrichment in P. × canescens upon CdCl2 exposures (50 μM, 30 min to 24 h). The fungus-stimulated Cd2+ in roots was significantly restricted by inhibitors of plasmalemma H+-ATPases and Ca2+-permeable channels (CaPCs), but stimulated by an activator of plasmalemma H+-ATPases. NaCl (100 mM) lowered the transient and steady-state Cd2+ influx in roots and fungal mycelia. Noteworthy, P. involutus colonization partly reverted the salt suppression of Cd2+ uptake in poplar roots. EM fungus colonization upregulated transcription of plasmalemma H+-ATPases (PcHA4, 8, 11) and annexins (PcANN1, 2, 4), which might mediate Cd2+ conductance through CaPCs. EM roots retained relatively highly expressed PcHAs and PcANNs, thus facilitating Cd2+ enrichment under co-occurring stress of cadmium and salinity. We conclude that ectomycorrhization of woody hyperaccumulator species such as poplar could improve phytoremediation of Cd2+ in salt-affected areas.

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NaCl improved Cd tolerance of the euhalophyte Suaeda glauca but not the recretohalophyte Limonium aureum

Cited by 15 publications

References 65 publications

Differential Uptake and Translocation of Cadmium and Lead by Quinoa: A Multivariate Comparison of Physiological and Oxidative Stress Responses

Differential Uptake and Translocation of Cadmium and Lead by Quinoa: A Multivariate Comparison of Physiological and Oxidative Stress Responses

Antioxidant Effects and Potential Molecular Mechanism of Action of Limonium aureum Extract Based on Systematic Network Pharmacology

Ectomycorrhizal Fungal Strains Facilitate Cd2+ Enrichment in a Woody Hyperaccumulator under Co-Existing Stress of Cadmium and Salt

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