African Journal of Microbiology Research
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Article Number - 3FD041555931


Vol.12(5), pp. 115-126 , February 2018
https://doi.org/10.5897/AJMR2017.8787
ISSN: 1996-0808


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Full Length Research Paper

Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method



Marina Teixeira Arriel-Elias
  • Marina Teixeira Arriel-Elias
  • Embrapa Arroz e Feijão, Rodovia GO 462 Km 12, Santo Antônio de Goiás, GO, Brazil.
  • Google Scholar
Maythsulene I. S. Oliveira
  • Maythsulene I. S. Oliveira
  • Embrapa Arroz e Feijão, Rodovia GO 462 Km 12, Santo Antônio de Goiás, GO, Brazil.
  • Google Scholar
Valacia Lemes Silva-Lobo
  • Valacia Lemes Silva-Lobo
  • Embrapa Arroz e Feijão, Rodovia GO 462 Km 12, Santo Antônio de Goiás, GO, Brazil.
  • Google Scholar
Marta Cristina Corsi Filippi
  • Marta Cristina Corsi Filippi
  • Embrapa Arroz e Feijão, Rodovia GO 462 Km 12, Santo Antônio de Goiás, GO, Brazil.
  • Google Scholar
Amadou H. Babana
  • Amadou H. Babana
  • Faculty of Sciences and Techniques, University of Sciences Techniques and Technology of Bamako, BP E3206, Bamako, Mali.
  • Google Scholar
Edemilson Cardoso Conceicao
  • Edemilson Cardoso Conceicao
  • Faculdade de Farmácia, Universidade Federal de Goiás, Rua 240 s/n, Setor Leste Universitário, Goiânia, GO, Brazil.
  • Google Scholar
Marcio Vinicius de C. B. Cortes
  • Marcio Vinicius de C. B. Cortes
  • Embrapa Arroz e Feijão, Rodovia GO 462 Km 12, Santo Antônio de Goiás, GO, Brazil.
  • Google Scholar







 Received: 19 December 2017  Accepted: 18 January 2018  Published: 07 February 2018

Copyright © 2018 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Plant growth promoting rhizobacteria (PGPR) are a specific group of bacteria interacting beneficially with plants. Among the known PGPRs, the species Pseudomonas fluorescens and Burkholderia pyrrocinia have been highlighted in both growth promotion and control of rice diseases. Ensuring the stability of the microorganism during production, formulation, distribution and storage has been a challenge for these species. In this context, the objective of this work was to develop liquid formulations, through a simplified process, that allows increase in the shelf life of these rhizobacteria for commercial application. Both bacteria were tested in 32 formulations under two storage temperature conditions: 8 and 28°C, resulting in 64 treatments for each species, which were evaluated for 180 days. Combinations of the adjuvants: molasses, glycerol, NaCl, PVP, MgSO4, K2HPO4 and yeast extract were evaluated. Formulations containing molasses, stored at 8°C, were considered the most efficient in maintaining microbial viability. The method used was considered efficient to select three formulations that allowed maintenance of the concentration of viable cells of P. fluorescens and B. pyrrocinia in 108 cfu.mL-1, for at least 90 and 150 days, respectively, not interfering with bacterial action potential.

 

Key words: Pseudomonas fluorescens, Burkholderia pyrrocinia, plant growth promoting rhizobacteria, shelf life, liquid formulations.

 

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APA Arriel-Elias, M. T., Oliveira, M. I. S., Silva-Lobo, V. L., Filippi, M. C. C., Babana, A. H., Conceição, E. C., & Cortes, M. V. C. B. (2018). Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method. African Journal of Microbiology Research, 12(5), 115-126.
Chicago Marina Teixeira Arriel-Elias,#, Maythsulene I. S. Oliveira,#, Valacia Lemes Silva-Lobo, Marta Cristina Corsi Filippi, Amadou H. Babana, Edemilson Cardoso Conceição and Marcio Vinicius de C. B. Cortes  . "Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method." African Journal of Microbiology Research 12, no. 5 (2018): 115-126.
MLA Marina Teixeira Arriel-Elias, et al. "Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method." African Journal of Microbiology Research 12.5 (2018): 115-126.
   
DOI https://doi.org/10.5897/AJMR2017.8787
URL http://academicjournals.org/journal/AJMR/article-abstract/3FD041555931

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