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<p>Potatoes are a&#xa0;widely grown food crop susceptible to fungal, bacterial, and viral diseases. <i>Ralstonia solanacearum</i> is the causal agent of potato brown rot (bacterial wilt). Many methods have been tried to increase potato yield and reduce the effect of the disease. This research investigates the role of the silicate solubilizing bacteria, <i>Bacillus albus</i> LM 6E (Acc. No. PV190679), either alone or in combination with feldspar, in improving tuber production and mitigating <i>R.&#xa0;solanacearum</i> influences. The results demonstrated that the application of <i>B.&#xa0;albus</i> increased the yield by 25% in both healthy and <i>R.&#xa0;solanacearum</i>-infected plants. Furthermore, combining <i>B.&#xa0;albus</i> with feldspar resulted in a&#xa0;48% increase in yield for healthy plants. A&#xa0;substantial increase was observed with phosphate-solubilizing bacteria (PSB), namely, <i>Enterobacter ludwigii, Pseudomonas canavaninivorans</i>, and silicate solubilizing bacteria, namely, <i>Azotobacter salinestris, E.&#xa0;Ludwigii, Rhizobium pusense,</i> and <i>Microbacterium</i> sp. The study has also assessed the antioxidants, the defensive enzyme, photosynthetic pigment, and the NPK content under various conditions using <i>B.&#xa0;albus</i> feldspar and pathogen application. Additionally, <i>B</i>.&#xa0;<i>albus</i> significantly decreased <i>R.&#xa0;solanacearum</i> populations in potato plants, including the rhizoplane, crown area, tubers, and surrounding soil. These findings highlight the potential of <i>B.&#xa0;albus</i> as an effective approach to enhance potato yield and manage brown rot disease.</p>

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Influence of Silicate Dissolving Bacteria and Feldspar Application on Potato Plants Affected with Bacterial Wilt Disease Caused by Ralstonia solanacearum

  • 期刊论文

  • 发表日期：

    2025年6月25日

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  • Lobna A. A. Moussa,
  • Omnia A. Abd El-Hafez,
  • Nevein A. S. Messiha

摘要

Potatoes are a widely grown food crop susceptible to fungal, bacterial, and viral diseases. Ralstonia solanacearum is the causal agent of potato brown rot (bacterial wilt). Many methods have been tried to increase potato yield and reduce the effect of the disease. This research investigates the role of the silicate solubilizing bacteria, Bacillus albus LM 6E (Acc. No. PV190679), either alone or in combination with feldspar, in improving tuber production and mitigating R. solanacearum influences. The results demonstrated that the application of B. albus increased the yield by 25% in both healthy and R. solanacearum-infected plants. Furthermore, combining B. albus with feldspar resulted in a 48% increase in yield for healthy plants. A substantial increase was observed with phosphate-solubilizing bacteria (PSB), namely, Enterobacter ludwigii, Pseudomonas canavaninivorans, and silicate solubilizing bacteria, namely, Azotobacter salinestris, E. Ludwigii, Rhizobium pusense, and Microbacterium sp. The study has also assessed the antioxidants, the defensive enzyme, photosynthetic pigment, and the NPK content under various conditions using B. albus feldspar and pathogen application. Additionally, B. albus significantly decreased R. solanacearum populations in potato plants, including the rhizoplane, crown area, tubers, and surrounding soil. These findings highlight the potential of B. albus as an effective approach to enhance potato yield and manage brown rot disease.