Biofertilizer Potential of Pseudomonas parafulva Isolated from the Chickpea Rhizosphere

Noureen Qureshi^1*, Alka Vyas² and Harish Vyas³

¹Department of Botany, Government Girls College, Mandsaur, Vikram University Ujjain, India

²S. S. in Microbiology, Vikram University, Ujjain, India

³Department of Botany, Government Madhav Science College, Vikram University, Ujjain, India

Corresponding Author E-mail:noureenq24@gmail.com

DOI : http://dx.doi.org/10.12944/CARJ.13.1.31

Article Publishing History

Received: 03 Mar 2025
Accepted: 25 Mar 2025
Published Online: 04 Apr 2025

Review Details

Reviewed by: Dr. Akila Chandrasekhar
Second Review by: Dr. Smitha Thomas
Final Approval by: Dr. Surendra Singh Bargali

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Abstract:

Rhizobacteria play a crucial role in enhancing plant growth and improving crop yield. This study focuses on the plant growth-promoting and biofertilizer potential of rhizobacteria isolated from the chickpea (Cicer arietinum) rhizosphere. The evaluation involved both primary and secondary screening processes to assess the key biochemical traits. The primary screening focused on ammonia and auxin production, where ammonia production enhances nitrogen availability for plants and auxins, particularly indole-3-acetic acid (IAA), contribute to root formation and overall plant growth. Secondary screening examined the production of siderophores and hydrogen cyanide (HCN). Siderophores facilitate iron uptake by plants, while HCN acts as a biocontrol agent by inhibiting soilborne pathogens. The study's findings showed that, among the five bacterial isolates one isolate (B67) had high auxin and siderophore-producing abilities it also exhibited ammonia and HCN producing abilities. Inoculation of this rhizobacterial isolate on chickpea seeds exhibited positive effects on seed germination and seedling growth. Isolate B67 has been identified as Pseudomonas parafulva using 16S rRNA gene sequencing. These findings suggest that Pseudomonas parafulva isolated from the chickpea rhizosphere possesses multiple plant growth-promoting traits positively influences growth of plants. Therefore, it might be used as an effective bioinoculant and biocontrol agent, offering a sustainable alternative to chemical fertilizers and pathogen management strategies.

Keywords:

Ammonia; Auxin; Chickpea; HCN; Plant Growth Promoting Potential; Pseudomonas Parafulva; Siderophore

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