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<p>Salt is regarded as an environmental stress condition that limits crop productivity in most agricultural environments. Arbuscular mycorrhizal fungi (AMF) possess the ability to preserve plants against abiotic stresses like salt stress. This work aims to perform a&#xa0;synergistic effect of genetic variation and AM symbionts of two mungbean (<i>Vigna radiata</i>) genotypes under different levels of salt (NaCl) stress conditions. In this study, two mungbean genotypes, namely Var. 155 and Var. 145, were exposed to a&#xa0;cumulative combination of AMF + salinity levels: control, AMF, 50 mM, AMF + 50 mM, 100 mM, AMF + 100 mM, 150 mM, and AMF + 150 mM NaCl after 31&#xa0;days of growth. The result showed that the NaCl applications in Var. 155 led to a&#xa0;decrease in the activity of malondialdehyde content (MDA) and reduced growth attributes in Var. 145. Also, Var. 155 treated with AMF revealed a&#xa0;significant upregulation in the activities of antioxidant enzymes in comparison to Var. 145. An increase in element concentration was observed in Var. 155 than in Var. 145. AMF enhanced photosynthesis performance in Var. 155 more than in Var. 145 under different NaCl concentrations. The maintenance of an increase in antioxidant response and nutrient content in Var. 155 revealed a&#xa0;preferred protective mechanism in comparison to Var. 145 seedlings.</p>

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Salt Stress Tolerance Enhanced by Symbiotic Mycorrhizal Fungi in Two Mungbean Landraces

  • 期刊论文

  • 发表日期：

    2025年4月30日

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  • Emmanuel Iwuala,
  • Isiaka Abiodun,
  • Victor Odjegba,
  • Kehinde Popoola,
  • Adedotun Adekunle,
  • Emmanuel Ayenigba,
  • Sylvia Uzochukwu,
  • Afroz Alam

摘要

Salt is regarded as an environmental stress condition that limits crop productivity in most agricultural environments. Arbuscular mycorrhizal fungi (AMF) possess the ability to preserve plants against abiotic stresses like salt stress. This work aims to perform a synergistic effect of genetic variation and AM symbionts of two mungbean (Vigna radiata) genotypes under different levels of salt (NaCl) stress conditions. In this study, two mungbean genotypes, namely Var. 155 and Var. 145, were exposed to a cumulative combination of AMF + salinity levels: control, AMF, 50 mM, AMF + 50 mM, 100 mM, AMF + 100 mM, 150 mM, and AMF + 150 mM NaCl after 31 days of growth. The result showed that the NaCl applications in Var. 155 led to a decrease in the activity of malondialdehyde content (MDA) and reduced growth attributes in Var. 145. Also, Var. 155 treated with AMF revealed a significant upregulation in the activities of antioxidant enzymes in comparison to Var. 145. An increase in element concentration was observed in Var. 155 than in Var. 145. AMF enhanced photosynthesis performance in Var. 155 more than in Var. 145 under different NaCl concentrations. The maintenance of an increase in antioxidant response and nutrient content in Var. 155 revealed a preferred protective mechanism in comparison to Var. 145 seedlings.