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April 5, 2026SHILAP Revista de lepidopterologíaOpen Access

Andean Rhizospheric Microorganisms as Plant Growth-promoting Platforms: Characterization of Pseudomonas Protegens M2 and Bacillus Proteolyticus M9

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Authors

CQClaudio Quiñones-CernaGSGary S. SilvaBSBertha S. Soriano-Bernilla

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Overview

Evaluates plant growth promotion by Andean microorganisms, revealing Pseudomonas protegens M2's potential benefits.

Key Points

  • To characterize two microbial strains from Andean crops for their plant growth-promoting and antifungal properties.
  • Isolation of Pseudomonas protegens M2 and Bacillus proteolyticus M9 from the rhizosphere of Andean tubers
  • Molecular identification using 16S ribosomal marker gene alignment
  • Assessment of nitrogen-fixing, siderophore production, phosphate solubilization, and indoleacetic acid synthesis
  • Evaluation of antagonistic activity against pathogenic fungi such as Fusarium oxysporum and Rhizoctonia sp.
  • Pseudomonas protegens M2 demonstrated nitrogen-fixing activity and high indoleacetic acid synthesis
  • M2 produced siderophores and solubilized inorganic phosphate effectively
  • M2 exhibited over 51% antagonistic activity against Fusarium oxysporum and nearly 60% against Rhizoctonia sp.
  • Bacillus proteolyticus M9 showed limited plant growth-promoting activities and no antifungal capabilities.

Cite This Study

Quiñones-Cerna et al. (2026) studied this question.

synapsesocial.com/papers/69d1fcd4a79560c99a0a28e8https://doi.org/10.3303/cet26123009
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