Comparative secretome analysis suggests low plant cell wall degrading capacity in Frankia symbionts.

ABSTRACT:

Background

Frankia sp. strains, the nitrogen-fixing facultative endosymbionts of actinorhizal plants, have long been proposed to secrete hydrolytic enzymes such as cellulases, pectinases, and proteases that may contribute to plant root penetration and formation of symbiotic root nodules. These or other secreted proteins might logically be involved in the as yet unknown molecular interactions between Frankia and their host plants. We compared the genome-based secretomes of three Frankia strains representing diverse host specificities. Signal peptide detection algorithms were used to predict the individual secretomes of each strain, and the set of secreted proteins shared among the strains, termed the core Frankia secretome. Proteins in the core secretome may be involved in the actin

SUBMITTER: Mastronunzio JE 

PROVIDER: S-EPMC2266912 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature