Seed priming in natural weed extracts represents a promising practice for alleviating lead stress toxicity

Sobhy, Sherien; Allah, Khalil Saad; Kassem, Essam Elden Abo; Hafez, Elsayed E.; Sewelam, Nasser

doi:10.5455/egyjebb.20191223054507

Cited by 10 publications

(13 citation statements)

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“…The overproduction of carotenoids induced by either Pb or Ni was retrieved by S extract application to reach near the control levels, indicating a mitigating effect. The results were similar to previous reports that used natural plant extracts to enhance photosynthetic pigment levels and photosynthetic efficiency against drought and heavy metals (Kasim et al, 2016;Sobhy et al, 2019). The S extract priming could supply the plant with adequate amounts of several minerals, including Mg and Fe, which may enhance chlorophyll biosynthesis.…”

Section: Photosynthetic Parameters Under Heavy Metal Stress and S Ext...supporting

confidence: 90%

“…According to these results, Pb or Ni toxicities were found to be extended to the inhibited uptake of minerals, which corresponded to high levels of Pb and Ni (Kang et al, 2017). The cell metabolism can be disrupted entirely due to the ionic replacement of Pb and Ni with other divalent cations in many vital locations (Sobhy et al, 2019). The shortage of N content in the yielded grains may be elucidated by the high affinity of Pb and Ni for the active site of nitrate reductase, inhibiting protein synthesis, growth, and development of plants (Nas & Ali, 2018).…”

Section: Yield Parameters and Mineral Content Of Harvested Grains Und...mentioning

confidence: 93%

“…The mitotic activity of the plant cells was lowered by the high solubility and biochemical reactivity of the metals inside the cells, reducing the length and development of the roots and shoots (Kazouz et al, 2020). Similarly, heavy metal stress has been recorded to reduce growth in many plants, including faba beans, wheat, and sunflower (Kasim et al, 2014;Sobhy et al, 2019;. Also, the leaf area significantly decreased under Pb and Ni applications by 32% and 28%, respectively, relative to the control plants (Table 2).…”

Section: Growth Criteria Under Heavy Metal Stress and The S Extract P...mentioning

confidence: 99%

“…In this context, natural biostimulant applications could be validated as an eco-friendly method for improving plant responses under heavy metal stress. Various natural plant extracts have been used to enhance plant productivity and defense mechanisms (Kasim et al, 2019;Sobhy et al, 2019). Sonchus oleraceus L. (sow thistle) is a winter weed and a traditional medicinal plant with a wide occurrence belonging to the family Asteraceae (Corrêa et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Priming with Natural Plant Extract on the Growth, Hormonal Status, and Yield Value of Triticum asetivum (L.) Grown under Lead and Nickel Stress

Nessem

Mohsen²,

Atlam³

et al. 2022

Egypt. J. Bot.

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Egyptian Journal of Botany http://ejbo.journals.ekb.eg/ 11 H EAVY metal pollution is widespread worldwide, threatening global food security. An experiment was conducted on wheat (Triticum asetivum L.) to evaluate the hazard impacts of lead (Pb) and nickel (Ni) stresses and the mitigating role of Sonchus oleraceus (S) extract as a grain priming application. It was revealed that the growth traits of wheat plants (e.g., including lengths, fresh and dry masses of root and shoot, leaf area, and yield attributes) were significantly reduced by 100mM Pb or Ni. Chlorophylls, total pigments, and photosynthetic activity (Fv/Fm) declined, although carotenoids increased significantly. Ni stress had the highest reduction compared to the control. Moreover, the endogenous status of phytohormones and the chemical composition of the yielded grains were modified by Pb and Ni in a different pattern, indicating that wheat had varying tolerance responses to different heavy metals. The beneficial components of S that support its promising alleviating role were exhibited in an analysis of extracts. Most wheat metabolic activities were restored by the S priming, with additional significant enhancements in growth criteria, photosynthetic parameters, and crop yield productivity. The accumulation of heavy metals in the produced grains was limited by priming with S extract, with an additional enhancement in their nutritional value. The phytohormonal balance was retrieved after grain priming with the S extract. Therefore, using natural S extract as a simple priming application could be a sustainable and safe method to alleviate the adverse effects of Pb and Ni stress on wheat productivity.

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Section: Photosynthetic Parameters Under Heavy Metal Stress and S Ext...supporting

confidence: 90%

Section: Yield Parameters and Mineral Content Of Harvested Grains Und...mentioning

confidence: 93%

Section: Growth Criteria Under Heavy Metal Stress and The S Extract P...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Priming with Natural Plant Extract on the Growth, Hormonal Status, and Yield Value of Triticum asetivum (L.) Grown under Lead and Nickel Stress

Nessem

Mohsen²,

Atlam³

et al. 2022

Egypt. J. Bot.

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“…Among physical priming methods, magnetopriming was reported to stimulate antioxidant system activity under salt stress [ 190 ], and therefore this technique may have significant potential for metallic stress amelioration. Finally, natural organic extracts can also be sources of priming agents or constitute priming cocktails themselves, as shown by a recent study on the amelioration of Pb toxicity by seed priming with weed extracts [ 191 ].…”

Section: Prospective Priming Approaches and Concluding Remarksmentioning

confidence: 99%

Priming Strategies for Benefiting Plant Performance under Toxic Trace Metal Exposure

Wiszniewska

2021

Plants

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Combating environmental stress related to the presence of toxic elements is one of the most important challenges in plant production. The majority of plant species suffer from developmental abnormalities caused by an exposure to toxic concentrations of metals and metalloids, mainly Al, As, Cd, Cu, Hg, Ni, Pb, and Zn. However, defense mechanisms are activated with diverse intensity and efficiency. Enhancement of defense potential can be achieved though exogenously applied treatments, resulting in a higher capability of surviving and developing under stress and become, at least temporarily, tolerant to stress factors. In this review, I present several already recognized as well as novel methods of the priming process called priming, resulting in the so-called “primed state” of the plant organism. Primed plants have a higher capability of surviving and developing under stress, and become, at least temporarily, tolerant to stress factors. In this review, several already recognized as well as novel methods of priming plants towards tolerance to metallic stress are discussed, with attention paid to similarities in priming mechanisms activated by the most versatile priming agents. This knowledge could contribute to the development of priming mixtures to counteract negative effects of multi-metallic and multi-abiotic stresses. Presentation of mechanisms is complemented with information on the genes regulated by priming towards metallic stress tolerance. Novel compounds and techniques that can be exploited in priming experiments are also summarized.

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Pre-soaking in Weed Extracts is a Reasonable Approach to Mitigate Fusarium graminearum Infection in Wheat

Sobhy

Abo‐Kassem

Sewelam

et al. 2021

J Plant Growth Regul

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Seed priming in natural weed extracts represents a promising practice for alleviating lead stress toxicity

Cited by 10 publications

References 0 publications

Effect of Priming with Natural Plant Extract on the Growth, Hormonal Status, and Yield Value of Triticum asetivum (L.) Grown under Lead and Nickel Stress

Effect of Priming with Natural Plant Extract on the Growth, Hormonal Status, and Yield Value of Triticum asetivum (L.) Grown under Lead and Nickel Stress

Priming Strategies for Benefiting Plant Performance under Toxic Trace Metal Exposure

Pre-soaking in Weed Extracts is a Reasonable Approach to Mitigate Fusarium graminearum Infection in Wheat

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