Transcriptome analysis of Azospirillum brasilense vegetative and cyst states reveals large-scale alterations in metabolic and replicative gene expression.

ABSTRACT: Several Gram-negative soil bacteria have the ability to differentiate into dormant cysts when faced with harsh environmental conditions. For example, when challenged with nutrient deprivation or desiccation, the plant-growth-promoting bacterium Azospirillum brasilense differentiates from a replicative and motile rod-shaped vegetative cell into a non-motile dormant spherical cyst. Currently, little is known about either the metabolic differences that exist between vegetative and cyst cell types, or about aspects of cyst physiology that allow dormant cells to survive harsh conditions. Here we compared transcriptomic profiles of vegetative and encysted A. brasilense. We observed that approximately one fifth of the A. brasilense transcriptome undergoes changes in expression between replicative

SUBMITTER: Malinich EA 

PROVIDER: S-EPMC6159551 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature