Rocky Mountain Research Station Publications
RMRS Online Publication - Journal
Articles, External Publications, and Special Reports
Tracking down worldwide Puccinia psidii dispersal
Graca, Rodrigo Neves; Ross-Davis, Amy; Klopfenstein, Ned; Kim, Mee Sook; Peever, Tobin; Cannon, Phil; Uchida, Janice; Alfenas, Acelino Couto. 2011. Tracking down worldwide Puccinia psidii dispersal. BMC Proceedings. 5(Suppl 7): P14.
Puccinia psidii causes rust disease on many host species in the Myrtaceae . First reported in 1884 on guava in Southern Brazil , the rust has since been detected on several myrtaceous in South America, Central America, Caribbean, Mexico, USA: in Florida, California, and Hawaii. More recently, P. psidii was reported in Japan infecting M. polymorpha. Of special note is that a rust was found infecting Myrtaceae species in Australia, where the fungus was reported as Uredo rangelii, based on the tonsure found on the urediniospores surface. However, DNA sequence data did not differentiate that rust from P. psidii, and the same tonsure patch, was also observed on rust urediniospores collected from several host species in Brazil [unpublished data].We have hypothesed that P. psidii was introduced into Hawaii through California by trade of rust infected myrtaceous plants, and that P. psidii populations from South America are distinct from the rust populations that became estabilished in California and Hawaii.
Keywords: Puccinia psidii, rust disease
About PDFs: For best results, do not open the PDF in your Web browser. Right-click on the PDF link to download the PDF file directly to your computer. Click here for more PDF help.
PDF File Size: 190 K
Title: RMRS Other
Publications: Tracking down worldwide Puccinia psidii dispersal
Electronic Publish Date: April 4, 2012
Last Update: April 4, 2012
RMRS Publications | Order a publication | Contact Us