Scholarlink

<p>Heavy metal pollution, particularly cadmium (Cd) toxicity, poses a significant challenge to agricultural sustainability and food safety due to its capacity to accumulate in edible plant tissues. Sesame (<i>Sesamum indicum</i> L.) is a major oil crop with high nutritional value that is highly sensitive to Cd-induced growth inhibition, oxidative stress and yield reduction. This study assessed the ameliorative effects of exogenous taurine and zaxinone on Cd-induced stress in sesame plants under natural conditions. A pot experiment was set up using a factorial arrangement with Cd stress (10&#xa0;mg&#xa0;kg soil ⁻<sup>1</sup>) and foliar treatment with taurine (10&#xa0;mM) and zaxinone (20&#xa0;µM). Compared to the Cd-stressed controls, the combined treatment significantly increased the root length, shoot fresh weight by 85.25%, chlorophyll a content by 58.17% and photosynthesis rate by 81.46%, 85.25%, 58.17% and 48.20%, respectively. In addition, it decreased malondialdehyde and seed Cd concentrations by 41.28% and 62.08%, respectively. Simultaneously, the activities of antioxidant enzymes (SOD, APX, GR), glutathione levels, osmolyte accumulation and nutrient uptake (N, P, K) were also enhanced. These results show that taurine and zaxinone can synergistically reduce Cd toxicity by promoting antioxidant effects, osmotic adjustment and nutrient balance by scavenging ROS and hormonal interactions. This integrated approach can effectively decrease Cd accumulation in seeds, ensuring food safety and provides a promising method for growing oil crops in polluted environments. This study emphasizes the originality of non-genetic, chemical-based approaches to sustainable agriculture. Field testing is recommended to evaluate the feasibility of this approach.</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

Mitigation of Soil Cadmium Toxicity in Sesame (Sesamum indicum L.) Using Taurine and Zaxinone: Antioxidant Regulation, Nutrient Homeostasis and Reduced Seed Cd Accumulation

  • 期刊论文

  • 发表日期：

    2026年3月10日

查看全文
  • Rashid Iqbal,
  • Sajjad Hyder,
  • Wael Elmenofy,
  • Mohamed Mohamed El-Mogy,
  • Hosny H. Kesba,
  • Lamy Mamdoh Mohamed Hamed,
  • Dilfuza Jabborova,
  • Ghulam Murtaza

摘要

Heavy metal pollution, particularly cadmium (Cd) toxicity, poses a significant challenge to agricultural sustainability and food safety due to its capacity to accumulate in edible plant tissues. Sesame (Sesamum indicum L.) is a major oil crop with high nutritional value that is highly sensitive to Cd-induced growth inhibition, oxidative stress and yield reduction. This study assessed the ameliorative effects of exogenous taurine and zaxinone on Cd-induced stress in sesame plants under natural conditions. A pot experiment was set up using a factorial arrangement with Cd stress (10 mg kg soil ⁻1) and foliar treatment with taurine (10 mM) and zaxinone (20 µM). Compared to the Cd-stressed controls, the combined treatment significantly increased the root length, shoot fresh weight by 85.25%, chlorophyll a content by 58.17% and photosynthesis rate by 81.46%, 85.25%, 58.17% and 48.20%, respectively. In addition, it decreased malondialdehyde and seed Cd concentrations by 41.28% and 62.08%, respectively. Simultaneously, the activities of antioxidant enzymes (SOD, APX, GR), glutathione levels, osmolyte accumulation and nutrient uptake (N, P, K) were also enhanced. These results show that taurine and zaxinone can synergistically reduce Cd toxicity by promoting antioxidant effects, osmotic adjustment and nutrient balance by scavenging ROS and hormonal interactions. This integrated approach can effectively decrease Cd accumulation in seeds, ensuring food safety and provides a promising method for growing oil crops in polluted environments. This study emphasizes the originality of non-genetic, chemical-based approaches to sustainable agriculture. Field testing is recommended to evaluate the feasibility of this approach.