Scholarlink

<p>Hexavalent chromium [Cr(VI)] rich tannery wastewater has negative impacts on physiological functions and growth of plants. We examined the effectiveness of foliar application of metal oxide nanoparticles including magnesium oxide, zinc oxide and iron oxide in mitigating chromium induced toxicity in <i>Spinacia oleracea</i> under 0%, 50%, and 100% tannery wastewater irrigation levels. The results reveal that chromium stress notably reduced plant growth, chlorophyll content, increased oxidative stress (H<sub>2</sub>O<sub>2</sub> and MDA), electrolyte leakage and build up of Cr both in roots and shoots of plants. The stress also reduced mineral nutrient acquisition including Mg, Fe and Zn. However, foliar application of MgO, FeO and ZnO nanoparticles strengthened the activities of antioxidant enzymes (SOD, POD and CAT) thus resulting in lowered oxidative stress and concentration of Cr within plant body. Application of nanoparticles helped the plants to absorb more mineral nutrients (Mg, Fe and Zn) as well. ZnO nanoparticles proved to be the most effective in mitigating Cr stress in <i>Spinacia oleracia</i> followed by MgO and FeO. This study demonstrates the effectiveness of ZnO NPs along with MgO and FeO in preventing Cr-actuated pressure in degraded conditions.</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

Alleviation of tannery wastewater toxicity in Spinacia oleracea through application of metal oxide nanoparticles

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月28日

查看全文
  • Ihsan Elahi Zaheer,
  • Shafiq ur Rehman,
  • Mehwish Liaquat,
  • Maryam Saif,
  • Fareeha Kanval,
  • Sarvet Jehan,
  • Shafaqat Ali,
  • Abdulrahman Alasmari,
  • Sarah Owdah Alomrani,
  • Ibrahim Al-Ashkar,
  • Ayman El Sabagh,
  • Abdul Ghafoor

摘要

Hexavalent chromium [Cr(VI)] rich tannery wastewater has negative impacts on physiological functions and growth of plants. We examined the effectiveness of foliar application of metal oxide nanoparticles including magnesium oxide, zinc oxide and iron oxide in mitigating chromium induced toxicity in Spinacia oleracea under 0%, 50%, and 100% tannery wastewater irrigation levels. The results reveal that chromium stress notably reduced plant growth, chlorophyll content, increased oxidative stress (H2O2 and MDA), electrolyte leakage and build up of Cr both in roots and shoots of plants. The stress also reduced mineral nutrient acquisition including Mg, Fe and Zn. However, foliar application of MgO, FeO and ZnO nanoparticles strengthened the activities of antioxidant enzymes (SOD, POD and CAT) thus resulting in lowered oxidative stress and concentration of Cr within plant body. Application of nanoparticles helped the plants to absorb more mineral nutrients (Mg, Fe and Zn) as well. ZnO nanoparticles proved to be the most effective in mitigating Cr stress in Spinacia oleracia followed by MgO and FeO. This study demonstrates the effectiveness of ZnO NPs along with MgO and FeO in preventing Cr-actuated pressure in degraded conditions.