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<p>Salinity stress in soil arises when high salt levels, especially sodium chloride, hinder plant growth by disrupting water and nutrient uptake. Panchagavya is a fermented preparation made up of five cow products (milk, dung, urine, curd, and ghee) used in natural farming. This study aims to investigate the beneficial effects of <i>Bacillus safensis</i> PG-54, a salt-tolerant bacteria isolated from fermented panchagavya on the growth and development of <i>Sorghum bicolor</i> under salinity stress. All plant growth-promoting activities, seed germination, and pot studies were conducted using 1.4% w/v NaCl treatment along with a control. The <i>Bacillus safensis</i> PG-54 showed better plant growth-promoting traits like indole-acetic acid (73.98&#xa0;μg/ml), gibberellic acid (3.44&#xa0;mg/ml), ammonia (37.53&#xa0;μmol/ml), phosphate solubilization (88.76&#xa0;μg/ml), and exopolysaccharide production (1.33&#xa0;g/L). Bacterial culture treated seeds showed 87% germination and a 113.1 seed vigour index. The addition of <i>B. safensis</i> PG-54 culture enhanced root length (6.01 ×), shoot length (1.37 ×), leaf length (1.71 ×), wet weight (1.17 ×), and dry weight (1.73 ×) on sorghum plants in salinity stress. Biochemical parameters were also improved after application of <i>B. safensis</i> PG-54 like chlorophyll (9.54&#xa0;mg/g tissue), protein (0.82&#xa0;μg/ml), sugar (1.91&#xa0;μg/ml), phenolics (3.70&#xa0;μg/ml), proline (0.18&#xa0;μg/ml) and salt tolerance index (0.711). The present study demonstrates the efficacy of <i>Bacillus safensis</i> PG-54 in improving plant growth and salt stress resilience, offering a promising solution for sustainable agriculture in saline soil.</p>

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Unveiling the potential of Bacillus safensis PG-54 isolated from fermented panchagavya on Sorghum bicolor under salinity stress

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月26日

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  • Drashti Patel,
  • Dimple Pardhi,
  • Tejalba Rathod,
  • Anjali Solanki,
  • Vikram Raval,
  • Rakeshkumar Panchal,
  • Rushikesh Joshi,
  • Kiransinh Rajput

摘要

Salinity stress in soil arises when high salt levels, especially sodium chloride, hinder plant growth by disrupting water and nutrient uptake. Panchagavya is a fermented preparation made up of five cow products (milk, dung, urine, curd, and ghee) used in natural farming. This study aims to investigate the beneficial effects of Bacillus safensis PG-54, a salt-tolerant bacteria isolated from fermented panchagavya on the growth and development of Sorghum bicolor under salinity stress. All plant growth-promoting activities, seed germination, and pot studies were conducted using 1.4% w/v NaCl treatment along with a control. The Bacillus safensis PG-54 showed better plant growth-promoting traits like indole-acetic acid (73.98 μg/ml), gibberellic acid (3.44 mg/ml), ammonia (37.53 μmol/ml), phosphate solubilization (88.76 μg/ml), and exopolysaccharide production (1.33 g/L). Bacterial culture treated seeds showed 87% germination and a 113.1 seed vigour index. The addition of B. safensis PG-54 culture enhanced root length (6.01 ×), shoot length (1.37 ×), leaf length (1.71 ×), wet weight (1.17 ×), and dry weight (1.73 ×) on sorghum plants in salinity stress. Biochemical parameters were also improved after application of B. safensis PG-54 like chlorophyll (9.54 mg/g tissue), protein (0.82 μg/ml), sugar (1.91 μg/ml), phenolics (3.70 μg/ml), proline (0.18 μg/ml) and salt tolerance index (0.711). The present study demonstrates the efficacy of Bacillus safensis PG-54 in improving plant growth and salt stress resilience, offering a promising solution for sustainable agriculture in saline soil.