The Role of Secretion Systems and Small Molecules in Soft-Rot Enterobacteriaceae Pathogenicity
Résumé
Soft-rot Enterobacteriaceae (SRE), which belong to the genera Pectobacterium and Dickeya, consist mainly of broad host-range pathogens that cause wilt, rot, and blackleg diseases on a wide range of plants. They are found in plants, insects, soil, and water in agricultural regions worldwide. SRE encode all six known protein secretion systems present in gram-negative bacteria, and these systems are involved in attacking host plants and competing bacteria. They also produce and detect multiple types of small molecules to coordinate pathogenesis, modify the plant environment, attack competing microbes, and perhaps to attract insect vectors. This review integrates new information about the role protein secretion and detection and production of ions and small molecules play in soft-rot pathogenicity.
Mots clés
SUGAR TRANSPORTER MFSX
QUORUM-SENSING SIGNALS
quorum sensing
DICKEYA-DADANTII 3937
Dickeya
CAROTOVORA SUBSP CAROTOVORA
ERWINIA-CHRYSANTHEMI 3937
Pectobacterium
plant cell wall-degrading enzymes
type III secretion system
ESCHERICHIA-COLI
PLANT INFECTION
III SECRETION
Type II secretion system
PECTOBACTERIUM-CAROTOVORUM
VIRULENCE FACTORS