Chemoreceptor family in plant-associated bacteria responds preferentially to the plant signal molecule glycerol 3-phosphate.

ABSTRACT:

Background

Chemotaxis to plant compounds is frequently the initial step for the colonization of plants by bacteria. Plant pathogens and plant-associated bacteria contain approximately twice as many chemoreceptors as the bacterial average does, indicating that chemotaxis is particularly important for bacteria-plant interactions. However, information on the corresponding chemoreceptors and their chemoeffectors is limited.

Results

We identify the chemoreceptor PacP from the phytopathogen Pectobacterium atrosepticum, which exclusively recognizes phosphorylated C3 compounds at its sCache ligand binding domain, mediating chemoattraction. Using a motif of PacP amino acid residues involved in ligand binding, we identify a chemoreceptor family, termed sCache_PC3, that is specific for

SUBMITTER: Velando F 

PROVIDER: S-EPMC12395807 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature