Scholarlink

<p>In this study investigates the detrimental impacts of Pb toxicity on crops, the study intended to investigate the interactive effect of treatments mediated by plant growth promoting rhizobacteria (PGPR) inoculation and foliar applied zinc oxide nanoparticles ZnO-NPs to alleviate Pb induced phytotoxicity in pakchoi plants which is rarely investigated.&#xa0;Pakchoi plants in pot experiment with completely randomized design (CRD) were cultivated in Pb-contaminated soil Pb 0 (as control) Pb 500 (mg kg<sup>− 1</sup>). and treated with single foliar ZnO-NPs (0, 50, and 100 mg L<sup>− 1</sup>) and combined application with PGPR (PGPR; Rhizobium strain TAL-169).&#xa0;Pb stress reduced growth and physiological traits, nutrient contents, and antioxidant enzyme activity. However, combined ZnO-NPs and PGPR application enhanced plant resistance by reducing oxidative stress markers (malondialdehyde, electrolyte leakage, and hydrogen peroxide). The treatment also improved antioxidant enzyme activities (superoxide dismutase, peroxidase, catalase, and ascorbate peroxidase) and reduced Pb bioaccumulation in roots (58.19%) and leaves (72.66%).&#xa0;The findings suggest that combined application of ZnO-NPs and PGPR can be an effective strategy for mitigating Pb toxicity in pakchoi plants. By modulating the antioxidant defense system, this approach promotes morpho-physiological attributes and reduces Pb bioaccumulation. These results provide insight into a sustainable and eco-friendly method for alleviating Pb stress in crops, enhancing food security and safety. The study’s outcomes can be useful for developing strategies to manage Pb contamination in agricultural soils.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The Potential Efficiency of Plant growth-promoting Rhizobacteria and Zinc Oxide Nanoparticles in Enhancing Pakchoi Tolerance to Lead Stress

  • 期刊论文

  • 发表日期：

    2025年12月16日

查看全文
  • Shoaib Ahmad,
  • Abdul Ghafoor,
  • Azeem Ahmad,
  • Sarah Owdah Alomrani,
  • Ahmad F. Alhomodi,
  • Hamid Ullah,
  • Tahira Akram,
  • Lin Jianyu,
  • Muhammad Ali Alshehri,
  • Shafaqat Ali

摘要

In this study investigates the detrimental impacts of Pb toxicity on crops, the study intended to investigate the interactive effect of treatments mediated by plant growth promoting rhizobacteria (PGPR) inoculation and foliar applied zinc oxide nanoparticles ZnO-NPs to alleviate Pb induced phytotoxicity in pakchoi plants which is rarely investigated. Pakchoi plants in pot experiment with completely randomized design (CRD) were cultivated in Pb-contaminated soil Pb 0 (as control) Pb 500 (mg kg− 1). and treated with single foliar ZnO-NPs (0, 50, and 100 mg L− 1) and combined application with PGPR (PGPR; Rhizobium strain TAL-169). Pb stress reduced growth and physiological traits, nutrient contents, and antioxidant enzyme activity. However, combined ZnO-NPs and PGPR application enhanced plant resistance by reducing oxidative stress markers (malondialdehyde, electrolyte leakage, and hydrogen peroxide). The treatment also improved antioxidant enzyme activities (superoxide dismutase, peroxidase, catalase, and ascorbate peroxidase) and reduced Pb bioaccumulation in roots (58.19%) and leaves (72.66%). The findings suggest that combined application of ZnO-NPs and PGPR can be an effective strategy for mitigating Pb toxicity in pakchoi plants. By modulating the antioxidant defense system, this approach promotes morpho-physiological attributes and reduces Pb bioaccumulation. These results provide insight into a sustainable and eco-friendly method for alleviating Pb stress in crops, enhancing food security and safety. The study’s outcomes can be useful for developing strategies to manage Pb contamination in agricultural soils.