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<p>The aim of this study was to investigate the ability of four <i>Streptomyces</i> spp. isolates for the biocontrol of <i>P. aphanidermatum</i> (Edson) Fitzpatrick, the causal agent of seedling damping-off in mung bean (<i>Vigna radiata</i>). From an initial collection of 100 soil-derived actinobacterial isolates, four isolates T1, T7, T8 and T9 were selected for biocontrol evaluation based on their performance in dual culture bioassays and in vitro Petri plate seedling assays. In vitro and in vivo investigation confirmed their capability as anti- <i>Pythium</i> biocontrol agents. Several physiological characteristics of the bioactive isolates were determined. Molecular identification confirmed that all four isolates belonged to the genus <i>Streptomyces</i>. The treatments significantly enhanced plant growth parameters compared to the controls (<i>P</i> &lt; 0.05). The results suggest that these isolates have the potential to be used as biocontrol agents in sustainable agriculture. Further long-term, field investigations are required to validate their applicability with respect to requirements of sustainable agriculture.</p> Graphical Abstract <p></p>

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Performance of four Streptomyces root symbionts in the biocontrol of Pythium aphanidermatum in mung bean

  • 期刊论文

  • 发表日期：

    2025年6月27日

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  • Toktam Ataeisalami,
  • Gholamhosein Shahidibonjar,
  • Akbar Hosseinipour,
  • Roohollah Abdolshahi,
  • Maryam Dorrani-Nejad,
  • Ismail Saadoun,
  • Essaid Ait Barka

摘要

The aim of this study was to investigate the ability of four Streptomyces spp. isolates for the biocontrol of P. aphanidermatum (Edson) Fitzpatrick, the causal agent of seedling damping-off in mung bean (Vigna radiata). From an initial collection of 100 soil-derived actinobacterial isolates, four isolates T1, T7, T8 and T9 were selected for biocontrol evaluation based on their performance in dual culture bioassays and in vitro Petri plate seedling assays. In vitro and in vivo investigation confirmed their capability as anti- Pythium biocontrol agents. Several physiological characteristics of the bioactive isolates were determined. Molecular identification confirmed that all four isolates belonged to the genus Streptomyces. The treatments significantly enhanced plant growth parameters compared to the controls (P < 0.05). The results suggest that these isolates have the potential to be used as biocontrol agents in sustainable agriculture. Further long-term, field investigations are required to validate their applicability with respect to requirements of sustainable agriculture.

Graphical Abstract