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  1. Home
  3. Restoration Of The Soil Fertility Under Cr(vi) And Artificial Drought Condition By The Utilization Of Plant Growth-promoting Bacillus Spp. Ssau2.
  1. Home
  3. Restoration Of The Soil Fertility Under Cr(vi) And Artificial Drought Condition By The Utilization Of Plant Growth-promoting Bacillus Spp. Ssau2.

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Restoration of the soil fertility under Cr(VI) and artificial drought condition by the utilization of plant

Abhijeet Sharma1, Shailendra Kumar Singh2, Neetu Maurya1

  • 1Centre of Biotechnology, University of Allahabad, Uttar Pradesh, Prayagraj, India, 211002.

International Microbiology : the Official Journal of the Spanish Society for Microbiology
|May 10, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

An indigenous microbe, Bacillus spp. SSAU-2, enhances soil fertility and plant growth. It thrives under abiotic stresses like salinity and Cr(VI), producing plant growth hormones for sustainable agriculture.

Keywords:
Bacillus spp.HCNHalotolerantIAAPlant hormonesSiderophore

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Area of Science:

  • Microbiology
  • Soil Science
  • Plant Physiology

Background:

  • Sustainable agriculture requires enhancing soil fertility and plant growth.
  • Abiotic stresses like salinity, drought, and heavy metals impede agricultural productivity.
  • Indigenous microorganisms offer potential solutions for improving crop resilience and yield.

Purpose of the Study:

  • To investigate the potential of Bacillus spp. SSAU-2, a halo-tolerant microbe, for sustainable agriculture.
  • To optimize Indole-3-acetic acid (IAA) synthesis by SSAU-2 under various stress conditions.
  • To evaluate the plant growth-promoting capabilities of SSAU-2.

Main Methods:

  • Optimized IAA synthesis by varying pH, salinity, tryptophan, carbon, and nitrogen sources.
  • Assessed microbe tolerance to PEG-6000 (drought) and Cr(VI) (heavy metal).
  • Quantified IAA production under different stress levels and identified other beneficial microbial traits.

Main Results:

  • Bacillus spp. SSAU-2 demonstrated optimal IAA synthesis at pH 10 and 30 g/L salinity.
  • Mannitol, lactose, peptone, and tryptone enhanced IAA production, while glucose, sucrose, and ammonium chloride inhibited it.
  • The microbe tolerated 45% PEG-6000 and 50 ppm Cr(VI), producing IAA under stress.

Conclusions:

  • Bacillus spp. SSAU-2 is a promising microbe for enhancing soil fertility and plant growth under abiotic stress.
  • Harnessing indigenous microbes like SSAU-2 is crucial for developing sustainable agricultural practices.
  • This research provides insights into utilizing microbial potential for ecosystem restoration and agricultural resilience.