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Phytopathogenic and Miscellaneous Members of the Family Enterobacteriaceae, Page 1 of 2
< Previous page Next page > /docserver/preview/fulltext/10.1128/9781555817541/9781555813420_Chap21-1.gif /docserver/preview/fulltext/10.1128/9781555817541/9781555813420_Chap21-2.gifAbstract:
The creation of the genus Pantoea began the process of taxonomically redefining phytopathogenic strains residing in the family Enterobacteriaceae into appropriate taxa. Currently, four major genera contain most known phytopathogenic species. These genera are Erwinia, Pantoea, Brenneria, and Pectobacterium. Early studies by Bottone and colleagues described the role that yellow-pigmented Erwinia played in causing human illnesses, ranging from conditions such as septicemia to brain abscess formation. These isolates were initially identified as yellow-pigmented erwiniae that today would be classified as P. agglomerans. P. agglomerans has also been associated with cotton fever in drug addicts and in cases of nosocomial pseudobacteremia traced to nonsterile blood collection tubes. Only recently have molecular investigations implicated several non-agglomerans phytopathogenic species as human pathogens. Despite progress being made on taxonomic issues regarding the correct classification of phytopathogenic genera and species, little progress has been made on standardization of identification schemes to separate these species. No formal studies of the susceptibility of true pantoeae to therapeutically active antimicrobial agents have been reported since their transfer to the genus Pantoea. The chapter also talks about miscellaneous genera that includes Budvicia, Buttiauxella and Obesumbacterium.