Uredo rangelii

Uredo rangelii
Scientific classification
Kingdom:	Fungi
Phylum:	Basidiomycota
Class:	Pucciniomycetes
Order:	Pucciniales
Family:	Incertae sedis
Genus:	Uredo
Species:	U. rangelii
Binomial name
Uredo rangelii J.A.Simpson, K.Thomas & Grgur. (2006)

Uredo rangelii, commonly known as Myrtle Rust, is a fungal plant pathogen that affects plants in the family Myrtaceae. The spores have a distinctive yellow to orange colour, occasionally enircled by a purple ring. They are found on lesions on new growth including shoots, leaves, buds and fruits. Leaves become twisted and may die. Infections in highly susceptible species may result in the death of the host plant.^[1]

The fungus was first recorded in Australia in April 2010 from the Central Coast of New South Wales.^[2][3] By December 2010, the rust had been recorded in south-east Queensland.^[4]

Host genera

Species within the following plant genera have been recorded with the infection:^[5]

• Acmena
• Agonis
• Angophora
• Austromyrtus
• Backhousia
• Callistemon
• Chamelaucium
• Choricarpia
• Decaspermum
• Eucalyptus
• Eugenia
• Gossia
• Lenwebbia
• Leptospermum
• Lophomyrtus
• Melaleuca
• Metrosideros
• Myrtus
• Pilidiostigma
• Rhodamnia
• Rhodomyrtus
• Syncarpia
• Syzygium
• Tristania
• Uromyrtus
• Waterhousea
• Xanthostemon

References

1. ^ "Myrtle Rust". Primary Industries Biosecurity. Department of Industry and Investment (New South Wales). http://www.dpi.nsw.gov.au/biosecurity/plant/myrtle-rust/hosts. Retrieved 18 March 2011. 
2. ^ "Myrtle Rust - Uredo rangelii". primefacts (Department of Industry and Investment (New South Wales)). August 2010. http://www.dpi.nsw.gov.au/__data/assets/pdf_file/0006/338721/Myrtle-rust-Uredo-rangelii.pdf. Retrieved 18 March 2011. 
3. ^ Simpson, J.A.; Thomas, K.; Grgurinovic, C.A. (2006). "Uredinales species pathogenic on species of Myrtaceae". Australasian Plant Pathology 35 (5): 549–62. doi:10.1071/AP06057. 
4. ^ Myrtle Rust (Uredo rangelii). Department of Sustainability, Environment, Water, Population and Communities. http://www.environment.gov.au/biodiversity/invasive/diseases/myrtle-rust.html. Retrieved 18 March 2011. 
5. ^ "Myrtle Rust - host list and images". Primary Industries Biosecurity. Department of Industry and Investment (New South Wales). http://www.dpi.nsw.gov.au/biosecurity/plant/myrtle-rust/hosts. Retrieved 18 March 2011.