Ecological and genetic diversity of plant growth-promoting genes in rhizobacteria isolated from the rhizosphere of wild flora on Mount Erciyes, Türkiye

Azizoğlu U.

FRONTIERS IN PLANT SCIENCE, cilt.0, sa.0, ss.1-11, 2025 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 0 Sayı: 0
  • Basım Tarihi: 2025
  • Doi Numarası: 10.3389/fpls.2025.1657785
  • Dergi Adı: FRONTIERS IN PLANT SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Directory of Open Access Journals
  • Sayfa Sayıları: ss.1-11
  • Kayseri Üniversitesi Adresli: Evet

Özet

Abstract

Introduction: This study is the first to investigate the genetic diversity of plant growth-promoting genes in rhizobacteria isolated from the wild ecology of Mount Erciyes, Türkiye. It has a flora rich in flowering plants, with 1170 plant taxa, 194 of which are endemic to the area.

Methods: A total of 165 bacterial isolates, including Azotobacter sp., Azospirillum sp., and Bacillus sp., were screened for genes associated with plant growth promotion: nitrogen fixation (nif), indole pyruvate decarboxylase (ipdC), 1-aminocyclopropane-1-carboxylate deaminase (accd), phosphate-solubilizing genes (Acpho, Alpho and phy), and siderophore biosynthesis (sd).

Results: The analysis revealed significant genetic variability across isolates, particularly for nif and sd genes, with distinct band patterns indicating genetic diversity among Azospirillum and Bacillus isolates.

Discussion: The findings emphasize the role of these rhizobacteria in nutrient cycling and stress resilience, potentially enhancing plant growth in nutrient-limited soils. In the current study, it contributes to understanding microbial biodiversity in Mount Erciyes and suggests a promising potential for sustainable agriculture through plant-microbe interactions.