African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5173

Full Length Research Paper

Characterization of bacterial strains from bacterial culture collection of rice sheath in Burundi highlights an Alcaligenes species strain with antibacterial activity against Pseudomonas fuscovaginae rice pathogen

Musonerimana Samson
  • Musonerimana Samson
  • International Centre for Genetic Engineering and Biotechnology, Padriciano, 99, 34149 Trieste, Italy.
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Cristina Bez
  • Cristina Bez
  • International Centre for Genetic Engineering and Biotechnology, Padriciano, 99, 34149 Trieste, Italy.
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Habarugira Georges
  • Habarugira Georges
  • International Rice Research Institute (IRRI), Africa Regional Crop Improvement Office, Burundi University, Faculty of Agronomy and Bio-Engineering, Avenue de l’UNESCO No 2 Bujumbura, Burundi.
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Bigirimana Joseph
  • Bigirimana Joseph
  • International Rice Research Institute (IRRI), Africa Regional Crop Improvement Office, Burundi University, Faculty of Agronomy and Bio-Engineering, Avenue de l’UNESCO No 2 Bujumbura, Burundi.
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Vittorio Venturi
  • Vittorio Venturi
  • International Centre for Genetic Engineering and Biotechnology, Padriciano, 99, 34149 Trieste, Italy.
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  •  Received: 26 February 2021
  •  Accepted: 14 September 2021
  •  Published: 31 October 2021

Abstract

The sheath rot rice disease is known to be associated to Pseudomonas fuscovaginae and a recent study on the symptomatic of sheath rot revealed that this bacterial pathogen is abundant in highland rice ecology cultivation in Burundi. From asymptomatic samples of sheath rice, a collection of bacterial isolates and culturable microbiome have been carried out. A comparison between the culturable microbiome and total microbiome was made. Phenotypic assays in vitro on the bacterial isolates were performed after identification at the genus level of each bacterial isolate by sequencing of 16S RNA gene. A bacterial isolate belonging to Alcaligenes genus has antibacterial activity against the rice sheath rot pathogen P. fuscovaginae in vitro conditions.

 

Key words: Pseudomonas fuscovaginae, sheath rot, microbiome, Alcaligenes species.