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<p>Chlorine dioxide (ClO<sub>2</sub>) is a safe, broad-spectrum antimicrobial that also functions as a phytopathogen elicitor. This study assessed the effects of ClO₂ on the physicochemical properties and microbial communities of vineyard soils. They were treated with varying ClO₂ concentrations: 4, 8, and 16&#xa0;mg L⁻¹ and analyzed for key physicochemical parameters—pH and electrical conductivity; organic carbon; available phosphorus, potassium, calcium, and magnesium—as well as microbial population. The physicochemical attributes did not change significantly, with all values falling within agronomically acceptable ranges, suggesting that ClO₂ does not negatively impact the soil environment. The bacterial population did not decline markedly, unlike fungal colonies, which were reduced remarkably (65%–70%), confirming strong antifungal activity. Microbiome profiles of soil from greenhouse-grown potted ‘Shine Muscat’ grapevines demonstrated concentration-dependent community-level compositional shifts, elimination of <i>Botrytis cinerea</i>, and enrichment of plant-beneficial taxa such as <i>Trichoderma</i>, <i>Reticulibacter</i>, <i>Paraburkholderia</i>, and <i>Nitrospirillum</i>. Many of these species are endophytes that can enhance crop vigor, systemic resistance, and nutrient cycling. Overall, ClO₂ effectively.highlighted its potential use in soil management. However, long-term studies are required to evaluate its ecological stability and agronomic sustainability.</p>

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Soil physicochemical and microbial shifts in vineyards under chlorine dioxide irrigation

  • 期刊论文

  • 发表日期：

    2026年8月3日

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  • Srinivasan Ramalingam,
  • Zar Le Myint,
  • Ji Min Yun,
  • Jae Hyun Lee,
  • Soon Young Ahn,
  • Sang-Min Lee,
  • Hae Keun Yun

摘要

Chlorine dioxide (ClO2) is a safe, broad-spectrum antimicrobial that also functions as a phytopathogen elicitor. This study assessed the effects of ClO₂ on the physicochemical properties and microbial communities of vineyard soils. They were treated with varying ClO₂ concentrations: 4, 8, and 16 mg L⁻¹ and analyzed for key physicochemical parameters—pH and electrical conductivity; organic carbon; available phosphorus, potassium, calcium, and magnesium—as well as microbial population. The physicochemical attributes did not change significantly, with all values falling within agronomically acceptable ranges, suggesting that ClO₂ does not negatively impact the soil environment. The bacterial population did not decline markedly, unlike fungal colonies, which were reduced remarkably (65%–70%), confirming strong antifungal activity. Microbiome profiles of soil from greenhouse-grown potted ‘Shine Muscat’ grapevines demonstrated concentration-dependent community-level compositional shifts, elimination of Botrytis cinerea, and enrichment of plant-beneficial taxa such as Trichoderma, Reticulibacter, Paraburkholderia, and Nitrospirillum. Many of these species are endophytes that can enhance crop vigor, systemic resistance, and nutrient cycling. Overall, ClO₂ effectively.highlighted its potential use in soil management. However, long-term studies are required to evaluate its ecological stability and agronomic sustainability.