Intracellular Polyphosphate Levels in Gluconacetobacter diazotrophicus Affect Tolerance to Abiotic Stressors and Biofilm Formation.
Microbes Environ
; 33(4): 440-445, 2018 Dec 28.
Article
em En
| MEDLINE
| ID: mdl-30404971
ABSTRACT
Gluconacetobacter diazotrophicus is a plant growth-promoting bacterium that is used as a bioinoculant. Phosphate (Pi) modulates intracellular polyphosphate (polyP) levels in Escherichia coli, affecting cellular fitness and biofilm formation capacity. It currently remains unclear whether environmental Pi modulates polyP levels in G. diazotrophicus to enhance fitness in view of its technological applications. In high Pi media, cells accumulated polyP and degraded it, thereby improving survival, tolerance to environmental stressors, biofilm formation capacity on abiotic and biotic surfaces, and competence as a growth promoter of strawberry plants. The present results support the importance of Pi and intracellular polyP as signals involved in the survival of G. diazotrophicus.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polifosfatos
/
Estresse Fisiológico
/
Biofilmes
/
Gluconacetobacter
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article