The causative agents are fastidious phloem-restricted, Gram-negative bacteria in the gracilicutes clade.
2.
In the Cavalier-Smith bacterial megaclassification, it is within the bacterial Gracilicutes infrakingdom and comprises the phyla Chlamydiae, Lentisphaerae, Planctomycetes, Verrucomicrobia.
मोबाइल