dickeya dickeya dickeya is a genus of the family pectobacteriaceae that consists mainly of pathogens from herbaceous plants. dickeya is the result of the reclassification of 75 strains of pectobacterium chrysanthemi, as well as brenneria paradisiaca cfbp 4178, into a new genus. the genus is named for american phytopathologist robert s. dickey. several species in this genus, such as dickeya dadantii, are known phytopathogens. dickeya scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: enterobacterales family: pectobacteriaceae genus: dickeyasamson et al., 2005 species several, see text species now placed here include: dickeya aquatica dickeya chrysanthemi dickeya dadantii (d. chrysanthemi) dickeya dianthicola dickeya dieffenbachiae dickeya paradisiaca dickeya solani dickeya zeae