<p>Soilborne fungal pathogens pose a significant threat to peanut production globally. Fungicides pose environmental risks and drive pathogen resistance. Bioformulations using beneficial microbes offer a sustainable alternative, suppressing pathogens and promoting plant growth. This study highlights the symbiotic interactions between peanuts and their seed-derived endophytic bacteria, aiming to develop a sustainable biocontrol strategy. A bacterial bioformulation (BBF) was created using <i>Serratia proteamaculans</i> Sp77 (GenBank: OR499910), isolated from peanut seeds. The BBF incorporated both the supernatant and live cells to promote sustainable agriculture. <i>Serratia proteamaculans</i> exerted a strong antifungal activity against <i>Sclerotinium bataticola</i> (41%) and <i>Fusarium solani</i> (45%), secreting beneficial enzymes and the growth-stimulating indole-3-acetic acid. Greenhouse and field experiments confirmed the BBF’s efficacy in reducing disease caused by these fungi. Under field conditions, 2% BBF significantly boosted the shoot (32.1%) and root (37.0%) lengths, branch number (35.6%), and pod weight (103.7%) per plant, and pod yield per hectare (113.8%), over the negative control. Eventually, BBF significantly increased the oil and protein contents in peanut seeds. The study was conducted in two different locations with consistent outcomes. BBF also enhanced plant physiochemical features, including total phenol, peroxidase, polyphenol oxidase, and photosynthetic pigments. This study introduces a novel BBF, demonstrating efficacy in suppressing soilborne fungal pathogens, and enhancing peanut growth, yield, and nutritional quality.</p>

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A novel bioformulation derived from seedborne endophytic Serratia proteamaculans enhances performance and disease resistance in peanuts

  • Ehsan M. Rashad,
  • Mona S. Mahmoud,
  • Dalia M. K. Shaheen,
  • Mohamed I. M. Ahmed,
  • Khalid M. Ghoneem,
  • Abdulaziz A. Al-Askar,
  • Farid Menaa,
  • WesamEldin I. A. Saber

摘要

Soilborne fungal pathogens pose a significant threat to peanut production globally. Fungicides pose environmental risks and drive pathogen resistance. Bioformulations using beneficial microbes offer a sustainable alternative, suppressing pathogens and promoting plant growth. This study highlights the symbiotic interactions between peanuts and their seed-derived endophytic bacteria, aiming to develop a sustainable biocontrol strategy. A bacterial bioformulation (BBF) was created using Serratia proteamaculans Sp77 (GenBank: OR499910), isolated from peanut seeds. The BBF incorporated both the supernatant and live cells to promote sustainable agriculture. Serratia proteamaculans exerted a strong antifungal activity against Sclerotinium bataticola (41%) and Fusarium solani (45%), secreting beneficial enzymes and the growth-stimulating indole-3-acetic acid. Greenhouse and field experiments confirmed the BBF’s efficacy in reducing disease caused by these fungi. Under field conditions, 2% BBF significantly boosted the shoot (32.1%) and root (37.0%) lengths, branch number (35.6%), and pod weight (103.7%) per plant, and pod yield per hectare (113.8%), over the negative control. Eventually, BBF significantly increased the oil and protein contents in peanut seeds. The study was conducted in two different locations with consistent outcomes. BBF also enhanced plant physiochemical features, including total phenol, peroxidase, polyphenol oxidase, and photosynthetic pigments. This study introduces a novel BBF, demonstrating efficacy in suppressing soilborne fungal pathogens, and enhancing peanut growth, yield, and nutritional quality.