Scholarlink

Background <p>Native sulphur–oxidising microbial communities play a crucial role in the effectiveness of elemental sulphur (S°)–based reclamation of sodic soils. This study reports, for the first time, the sulphur oxidation (S°–oxidation) capability of <i>Acinetobacter lwoffii</i> strain 5M1, isolated from highly saline soil (electrical conductivity of 36 dS m⁻¹) surrounding a hot-water spring.</p> Result <p>The strain released appreciable amounts of plant growth-promoting compounds, including ammonia and indole–3–acetic acid (IAA). <i>A. lwoffii</i> 5M1 formed biofilms around S°–particles in growth media. It harbours the <i>soxA</i> (720&#xa0;bp), <i>soxB</i> (590&#xa0;bp), and <i>soxY</i> (329&#xa0;bp) genes, which form the core component of the Sox gene cluster. Inoculation of S° with <i>A. lwoffii</i> 5M1 caused a 15.3–39.1% increase in S°-oxidation in soil of varied sodicity with pHs ranging from 9.1 to 10.5. The improved oxidation was associated with a decline in bicarbonate and alkalinity and a simultaneous increase in Ca²⁺, Mg²⁺, and inorganic P content in the soil solution. Integrating strain 5M1 with S°enhanced rice and wheat yields by 6.45–28.8% than S° alone.</p> Conclusion <p>This study concludes that <i>A. lwoffii</i> strain 5M1, with its dual function of S° oxidation and plant growth promotion, represents a promising bio–inoculant for rapid and efficient sodicity reclamation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Acinetobacter lwoffii 5M1 mediated biological oxidation enhances elemental sulphur efficiency for sodic soil amelioration and its crop productivity

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月1日

查看全文
  • Arvind Kumar Rai,
  • Nirmalendu Basak,
  • Priyanka Chandra,
  • Parul Sundha,
  • Harshpreet Kaur,
  • Sandeep Bedwal,
  • Subedar Patel,
  • Sanjay Kumar,
  • Pooja Dhuli,
  • Anu Sehrawat,
  • Rameshwar Lal Meena,
  • Parbodh Chander Sharma,
  • Rajender Kumar Yadav

摘要

Background

Native sulphur–oxidising microbial communities play a crucial role in the effectiveness of elemental sulphur (S°)–based reclamation of sodic soils. This study reports, for the first time, the sulphur oxidation (S°–oxidation) capability of Acinetobacter lwoffii strain 5M1, isolated from highly saline soil (electrical conductivity of 36 dS m⁻¹) surrounding a hot-water spring.

Result

The strain released appreciable amounts of plant growth-promoting compounds, including ammonia and indole–3–acetic acid (IAA). A. lwoffii 5M1 formed biofilms around S°–particles in growth media. It harbours the soxA (720 bp), soxB (590 bp), and soxY (329 bp) genes, which form the core component of the Sox gene cluster. Inoculation of S° with A. lwoffii 5M1 caused a 15.3–39.1% increase in S°-oxidation in soil of varied sodicity with pHs ranging from 9.1 to 10.5. The improved oxidation was associated with a decline in bicarbonate and alkalinity and a simultaneous increase in Ca²⁺, Mg²⁺, and inorganic P content in the soil solution. Integrating strain 5M1 with S°enhanced rice and wheat yields by 6.45–28.8% than S° alone.

Conclusion

This study concludes that A. lwoffii strain 5M1, with its dual function of S° oxidation and plant growth promotion, represents a promising bio–inoculant for rapid and efficient sodicity reclamation.