%0 Journal Article
%T Transcriptomic profiling of Bacillus amyloliquefaciens FZB42 in response to maize root exudates
%A Ben Fan
%A Lilia C Carvalhais
%A Anke Becker
%A Dmitri Fedoseyenko
%A Nicolaus vonWir¨¦n
%A Rainer Borriss
%J BMC Microbiology
%D 2012
%I BioMed Central
%R 10.1186/1471-2180-12-116
%X Bacillus amyloliquefaciens FZB42 is a well-studied Gram-positive PGPR. To obtain a comprehensive overview of FZB42 gene expression in response to maize root exudates, microarray experiments were performed. A total of 302 genes representing 8.2% of the FZB42 transcriptome showed significantly altered expression levels in the presence of root exudates. The majority of the genes (261) was up-regulated after incubation of FZB42 with root exudates, whereas only 41 genes were down-regulated. Several groups of the genes which were strongly induced by the root exudates are involved in metabolic pathways relating to nutrient utilization, bacterial chemotaxis and motility, and non-ribosomal synthesis of antimicrobial peptides and polyketides.Here we present a transcriptome analysis of the root-colonizing bacterium Bacillus amyloliquefaciens FZB42 in response to maize root exudates. The 302 genes identified as being differentially transcribed are proposed to be involved in interactions of Gram-positive bacteria with plants.
%U http://www.biomedcentral.com/1471-2180/12/116/abstract