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<p>Tomato wilt disease, caused by soil-borne pathogens such as <i>Fusarium oxysporum</i>, is a significant threat to tomato production worldwide, resulting in substantial crop losses. The increasing resistance of pathogens to chemical fungicides has shifted attention towards sustainable and environmentally friendly alternatives. Within this context, <i>Bacillus</i> species have emerged as promising natural biocontrol agents due to their ability to inhibit pathogenic growth. Ten isolates were obtained from the rhizosphere of tomato plants, with isolates 1, 2, and 4 showing the highest effectiveness in reducing the pathogen (78.5, 71 and 65% respectively). The three isolates were identified as <i>Bacillus velezensis</i>, <i>B. amyloliquefaciens</i>, and <i>B. subtilis</i>. When these isolates were formulated and applied to tomato plants they reduced the disease severity under greenhouse conditions as well as increased the fresh and dry weight of shoots and roots. Employing <i>Bacillus sp.</i> as a biocontrol and growth-promoting agent represents a sustainable, eco-friendly strategy for managing tomato wilt disease, potentially reducing dependence on chemical pesticides and improving agricultural productivity.</p>

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Development of Bacillus spp for controlling wilt disease and improving the growth of tomato

  • 期刊论文

  • 发表日期：

    2025年1月31日

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  • Najeeb M. Almasoudi,
  • Nashwa M. A. Sallam,
  • Esmat F. Ali,
  • Abeer S. Alqurashi,
  • Ahmed A. Issa,
  • Fayez Althobaiti,
  • Mohamed Housny,
  • Hanan AlOmari,
  • Kamal A. M. Abo-Elyousr

摘要

Tomato wilt disease, caused by soil-borne pathogens such as Fusarium oxysporum, is a significant threat to tomato production worldwide, resulting in substantial crop losses. The increasing resistance of pathogens to chemical fungicides has shifted attention towards sustainable and environmentally friendly alternatives. Within this context, Bacillus species have emerged as promising natural biocontrol agents due to their ability to inhibit pathogenic growth. Ten isolates were obtained from the rhizosphere of tomato plants, with isolates 1, 2, and 4 showing the highest effectiveness in reducing the pathogen (78.5, 71 and 65% respectively). The three isolates were identified as Bacillus velezensis, B. amyloliquefaciens, and B. subtilis. When these isolates were formulated and applied to tomato plants they reduced the disease severity under greenhouse conditions as well as increased the fresh and dry weight of shoots and roots. Employing Bacillus sp. as a biocontrol and growth-promoting agent represents a sustainable, eco-friendly strategy for managing tomato wilt disease, potentially reducing dependence on chemical pesticides and improving agricultural productivity.