A Novel Group of -Like Agrobacteria Associated with Crown Gall Disease of Rhododendron and Blueberry.

Crown gall is an economically important and widespread plant disease caused by tumorigenic bacteria that are commonly affiliated within the genera , and . Although crown gall disease was reported to occur on rhododendron, literature data regarding this disease are limited. In this study, an atypical group of tumorigenic agrobacteria belonging to the genus was identified as a causative agent of crown gall on rhododendron.