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<p>To investigate the potential of thyme and cumin essential oil nanoemulsions (EONEs) for controlling <i>Alternaria radicina</i>, a newly emerged fungal disease of coriander, this study explored their efficacy and impact on plant growth. The use of EONEs represents a novel approach for simultaneous disease management and growth promotion, but research on this topic is limited. This study is the first to evaluate EONEs for controlling <i>A. radicina</i> in coriander. Foliar application of thyme and cumin EOs resulted in significant in vitro fungicidal activity, reducing fungal enzyme activity and <i>A. radicina</i> growth. Both EONEs at 75/100 mL effectively controlled the disease in field trials. Furthermore, 50 µL/100 mL EONEs increased coriander growth parameters such as plant height, branching, and fresh weight. Compared with the control, Thyme EONEs were superior in terms of increasing oil content, seed yield, and overall oil yield. The chromosomal aberration study revealed a dose-dependent effect of EONEs, with lower concentrations exhibiting less cytotoxicity than fungicides. This study introduces thyme and cumin EOs as novel, effective, and safe alternatives to chemical fungicides for <i>A. radicina</i> control.</p>

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Thyme and cumin eones: a safe and effective strategy for controlling Alternaria radicina in coriander, enhancing growth, and reducing cytotoxicity

  • 期刊论文

  • 发表日期：

    2025年10月16日

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  • Seham M. A. El-Gamal,
  • Ehsan M. Rashad,
  • WesamEldin I. A. Saber,
  • Abdulaziz A. Al-Askar,
  • Yosra A. Helmy,
  • Khalid M. Ghoneem,
  • Amira A. Ibrahim

摘要

To investigate the potential of thyme and cumin essential oil nanoemulsions (EONEs) for controlling Alternaria radicina, a newly emerged fungal disease of coriander, this study explored their efficacy and impact on plant growth. The use of EONEs represents a novel approach for simultaneous disease management and growth promotion, but research on this topic is limited. This study is the first to evaluate EONEs for controlling A. radicina in coriander. Foliar application of thyme and cumin EOs resulted in significant in vitro fungicidal activity, reducing fungal enzyme activity and A. radicina growth. Both EONEs at 75/100 mL effectively controlled the disease in field trials. Furthermore, 50 µL/100 mL EONEs increased coriander growth parameters such as plant height, branching, and fresh weight. Compared with the control, Thyme EONEs were superior in terms of increasing oil content, seed yield, and overall oil yield. The chromosomal aberration study revealed a dose-dependent effect of EONEs, with lower concentrations exhibiting less cytotoxicity than fungicides. This study introduces thyme and cumin EOs as novel, effective, and safe alternatives to chemical fungicides for A. radicina control.