CeO2 nanoparticles improved cucumber salt tolerance is associated with its induced early stimulation on antioxidant system

Chen, Linlin; Peng, Yuquan; Zhu, Lingjuan; Huang, Yuan; Bie, Zijun; Wu, Honghong

doi:10.1016/j.chemosphere.2022.134474

Cited by 27 publications

(33 citation statements)

References 79 publications

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“…Cucumbers also showed resistance in a saline environment by inducing early stimulation of defence responses (antioxidative enzymes) when treated with cerium oxide nanoparticles (Chen et al 2022) and manganese oxide nanoparticles (Lu et al 2020). Nanoparticles also mitigate the drought stress in different vegetables.…”

Section: Nanoparticlesmentioning

confidence: 99%

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

Khalid

Huda²,

Yong³

et al. 2022

Plant Growth Regul

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In recent decades, the demand for vegetables has increased significantly due to the blooming global population. Climate change has affected vegetable production by increasing the frequencies and severity of abiotic and biotic stresses. Among the abiotic stresses, drought and salinity are the major issues that possess severe threats on vegetable production. Many vegetables (e.g., carrot, tomato, okra, pea, eggplant, lettuce, potato) are usually sensitive to drought and salt stress. The defence mechanisms of plants against salt and drought stress have been extensively studied in model plant species and field crops. Better understanding of the mechanisms of susceptibility of vegetables to drought and salt stresses will help towards the development of more tolerant genotypes as a long-term strategy against these stresses. However, the intensity of the challenges also warrants more immediate approaches to mitigate these stresses and enhance vegetable production in the short term. Therefore, this review enlightens the updated knowledge of responses (physiological and molecular) against drought and salinity in vegetables and potentially effective strategies to enhance production. Moreover, we summarized different technologies such as seed priming, genetic transformation, biostimulants, nanotechnology, and cultural practices adopted to enhance vegetable production under drought and salinity stress. We propose that approaches of conventional breeding, genetic engineering, and crop management should be combined to generate drought and salt resistance cultivars and adopt smart cultivation practices for sustainable vegetable production in a changing climate.

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Section: Nanoparticlesmentioning

confidence: 99%

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

Khalid

Huda²,

Yong³

et al. 2022

Plant Growth Regul

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“…The confocal imaging was conducted by following the procedures, which are described in our previous publication. 20 2.4. Incubating cucumber with foliar-delivered or rootapplied nanoceria and the salt stress treatment PNC was administered to cucumber seedlings either foliarly or through the roots (at the period of the growth of the second true leaf).…”

Section: Synthesis and Confocal Imaging Of Dii-pncmentioning

confidence: 99%

“…0.1 mM PNC was utilized, which was determined from a PNC concentration screening experiment. 20 The true leaves of the cucumber were sprayed with 1 mL of 0.1 mM PNC (a total of 0.1 mol PNC in the solution) for foliar delivery. 20 A pipette with clipped tips was used to spray the solution.…”

Section: Synthesis and Confocal Imaging Of Dii-pncmentioning

confidence: 99%

“…Assessing phenotypic and photosynthetic performance of cucumber plants with PNC under salt stress For measuring, the dry weight of the shoots and roots, the first true leaf's SPAD levels, maximal photochemical efficiency (F v /F m ), net photosynthetic rate (P n ), stomatal conductance (G s ), and intercellular CO 2 concentration (C i ) of salt-stressed (75 mM NaCl, 7 days) cucumber were carried out according to the protocols described in previous publications. 20,36 2.6. Determination of cerium, K + , and Na + content After NaCl treatment for 7 days, cerium, K + , and Na + content samples of the leaves, roots, and whole plant were measured as described in our previous study.…”

Section: Synthesis and Confocal Imaging Of Dii-pncmentioning

confidence: 99%

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CsAKT1 is a key gene for the CeO₂ nanoparticle's improved cucumber salt tolerance: a validation from CRISPR-Cas9 lines

Peng

Chen

Zhu

et al. 2022

Environ. Sci.: Nano

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“…CeO 2 and Mn 3 O 4 nanoparticles are known nanozymes having ROS scavenging ability (Wu and Li, 2022b). As above-mentioned, both of the nanoparticles showed good potential in improving plant salt tolerance (Chen et al, 2022;Li et al, 2022a, b;Lu et al, 2020;Wu et al, 2018a). However, as a rare earth element, cerium (Ce) is a heavy metal, which can rise public concerns about biosafety issues.…”

Section: Introductionmentioning

confidence: 99%

Improvement of leaf K+ retention is a shared mechanism behind CeO2 and Mn3O4 nanoparticles improved rapeseed salt tolerance

et al. 2022

Stress Biology

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Salinity is a global issue limiting efficient agricultural production. Nanobiotechnology has been emerged as an effective approach to improve plant salt tolerance. However, little known is about the shared mechanisms between different nanomaterials-enabled plant salt tolerance. In this study, we found that both PNC [polyacrylic acid coated nanoceria (CeO2 nanoparticles)] and PMO (polyacrylic acid coated Mn3O4 nanoparticles) nanozymes improved rapeseed salt tolerance. PNC and PMO treated rapeseed plants showed significantly fresh weight, dry weight, higher chlorophyll content, Fv/Fm, and carbon assimilation rate than control plants under salt stress. Results from confocal imaging with reactive oxygen species (ROS) fluorescent dye and histochemical staining experiments showed that the ROS over-accumulation level in PNC and PMO treated rapeseed was significantly lower than control plants under salt stress. Confocal imaging results with K+ fluorescent dye showed that significantly higher cytosolic and vacuolar K+ signals were observed in PNC and PMO treated rapeseed than control plants under salt stress. This is further confirmed by leaf K+ content data. Furthermore, we found that PNC and PMO treated rapeseed showed significantly lower cytosolic Na+ signals than control plants under salt stress. While, compared with significantly higher vacuolar Na+ signals in PNC treated plants, PMO treated rapeseed showed significantly lower vacuolar Na+ signals than control plants under salt stress. These results are further supported by qPCR results of genes of Na+ and K+ transport. Overall, our results suggest that besides maintaining ROS homeostasis, improvement of leaf K+ retention could be a shared mechanism in nano-improved plant salt tolerance.

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CeO2 nanoparticles improved cucumber salt tolerance is associated with its induced early stimulation on antioxidant system

Cited by 27 publications

References 79 publications

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

CsAKT1 is a key gene for the CeO₂ nanoparticle's improved cucumber salt tolerance: a validation from CRISPR-Cas9 lines

Improvement of leaf K+ retention is a shared mechanism behind CeO2 and Mn3O4 nanoparticles improved rapeseed salt tolerance

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CeO2 nanoparticles improved cucumber salt tolerance is associated with its induced early stimulation on antioxidant system

Cited by 27 publications

References 79 publications

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

CsAKT1 is a key gene for the CeO2 nanoparticle's improved cucumber salt tolerance: a validation from CRISPR-Cas9 lines

Improvement of leaf K+ retention is a shared mechanism behind CeO2 and Mn3O4 nanoparticles improved rapeseed salt tolerance

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CsAKT1 is a key gene for the CeO₂ nanoparticle's improved cucumber salt tolerance: a validation from CRISPR-Cas9 lines