Uredo rangelii
Encyclopedia
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.
The fungus was first recorded in Australia
in April 2010 from the Central Coast
of New South Wales
. By December 2010, the rust had been recorded in south-east Queensland
.
Fungus
A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds , as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from plants, animals, and bacteria...
plant pathogen that affects plants in the family Myrtaceae
Myrtaceae
The Myrtaceae or Myrtle family are a family of dicotyledon plants, placed within the order Myrtales. Myrtle, clove, guava, feijoa, allspice, and eucalyptus belong here. All species are woody, with essential oils, and flower parts in multiples of four or five...
. 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.
The fungus was first recorded in Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
in April 2010 from the Central Coast
Central Coast
-California:* Central Coast Region of California, in California, United States*Monterey County, California*San Luis Obispo County, California*Santa Barbara County, California*Big Sur*Hearst Castle-Canada:...
of New South Wales
New South Wales
New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...
. By December 2010, the rust had been recorded in south-east Queensland
Queensland
Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...
.
Host genera
Species within the following plant genera have been recorded with the infection:- AcmenaAcmenaAcmena is a genus of shrubs and small trees in the myrtle family Myrtaceae. They are related to guavas. The name is derived from the Greek word for "plentiful."The name was first validly published in 1828...
- AgonisAgonisAgonis is a genus of four species in the plant family Myrtaceae. All are endemic to Western Australia, growing near the coast in the south west.Only one, Agonis flexuosa, grows to tree size, the others generally growing as tall shrubs....
- AngophoraAngophoraAngophora is a genus of ten species of trees or large shrubs in the myrtle family , native to eastern Australia. It is closely related to Corymbia and Eucalyptus, and all three are often referred to as "eucalypts". The differences are that Angophora have opposite leaves rather than alternate, and...
- AsteromyrtusAsteromyrtusAsteromyrtus is a genus of the botanical family Myrtaceae.-Species:*Asteromyrtus angustifolia*Asteromyrtus arnhemica*Asteromyrtus brassii*Asteromyrtus gaertneri*Asteromyrtus lysicephala*Asteromyrtus magnifica...
- AustromyrtusAustromyrtusAustromyrtus is a genus of shrubs in the myrtle family Myrtaceae. The three species are found along the east coast of Australia, in Queensland and/or New South Wales. The fruits of A. dulcis have a hint of cinnamon flavouring...
- BackhousiaBackhousiaBackhousia is a small genus of five species of flowering plants in the family Myrtaceae, native to the rainforests of eastern Australia. They are aromatic shrubs or trees growing to 5-25 m tall, with evergreen leaves 3-12 cm long and 1-6 cm broad, arranged opposite on the shoots.Species...
- Callistemon
- ChamelauciumChamelauciumChamelaucium, also known as waxflower, is a genus of shrubs endemic to south western Western Australia. They belong to the myrtle family Myrtaceae and have flowers similar to those of the tea-trees...
- ChoricarpiaChoricarpiaChoricarpia is a genus of trees comprising two species endemic to New South Wales and Queensland in Australia:*Choricarpia leptopetala, Brown Myrtle or Brush Turpentine*Choricarpia subargentea, Giant Ironwood or Ironwood Box...
- Decaspermum
- EucalyptusEucalyptusEucalyptus is a diverse genus of flowering trees in the myrtle family, Myrtaceae. Members of the genus dominate the tree flora of Australia...
- EugeniaEugeniaEugenia is a genus of flowering plants in the myrtle family Myrtaceae. It has a worldwide, although highly uneven, distribution in tropical and subtropical regions. The bulk of the approximately 1,000 species occur in the New World tropics, especially in the northern Andes, the Caribbean, and the...
- GossiaGossiaGossia is a genus of rainforest trees in the myrtle family. The name honours the conservation works of the former premier of Queensland, Wayne Goss.There are around 35 species of Gossia. Found in Malesia to New Caledonia, Fiji and Australia...
- LenwebbiaLenwebbiaLenwebbia is a genus of 2 species of shrubs or small trees in the myrtle family Myrtaceae. The genus is named to honour the Australian plant ecologist Dr. Leonard Webb...
- LeptospermumLeptospermumLeptospermum is a genus of about 80-86 species of plants in the myrtle family Myrtaceae. Most species are endemic to Australia, with the greatest diversity in the south of the continent; but one species extends to New Zealand, another to Malaysia, and L. recurvum is endemic to Malaysia.They...
- LophomyrtusLophomyrtusLophomyrtus is a genus of the myrtle family native to New Zealand. It has two species, both evergreen shrubs or trees, noted for their colorful leaves, which are purple, chocolate, red or bronze-green. There are also a number of cultivars. Planting in full sun aids the leaf color to develop. In...
- MelaleucaMelaleucaMelaleuca is a genus of plants in the myrtle family Myrtaceae known for its natural soothing and cleansing properties. There are well over 200 recognised species, most of which are endemic to Australia...
- MetrosiderosMetrosiderosMetrosideros is a genus of approximately 50 trees, shrubs, and vines native to the islands of the Pacific Ocean, from the Philippines to New Zealand and including the Bonin Islands, Polynesia, and Melanesia, with an anomalous outlier in South Africa. Most of the tree forms are small, but some are...
- Myrtus
- PilidiostigmaPilidiostigmaPilidiostigma is a genus of 6 species of shrubs and small trees in the myrtle family Myrtaceae. All species occur in Australia and one, P. papuanum, also occurs in Papua New Guinea. They are not generally known to horticulture. The species P. sessile is rare....
- RhodamniaRhodamniaRhodamnia is a genus of rainforest trees and shrubs in the myrtle family. The name is derived from the Greek Rhodon which means "rose". And aminon, "bowl" where the blood of lambs was poured after sacrifice. It refers to the bowl shaped calyx tubes. Leaves are opposite and mostly three veined in...
- RhodomyrtusRhodomyrtusRhodomyrtus is a genus of 24 species of shrubs and trees in the family Myrtaceae. The genus is native to Asia, Malesia, Melanesia, and Australia. Its greatest levels of diversity are on New Guinea and in northeastern Australia. DNA sequence data and morphological data indicate that the genus is...
- RistantiaRistantiaRistantia is a genus of plants in the family Myrtaceae.-Species:* Ristantia gouldii, Peter G.Wilson & B.Hyland, a tree species found in Australia listed as vulnerable on www.environment.gov.au* Ristantia pachysperma...
- Stockwellia
- SyncarpiaSyncarpiaSyncarpia is a small genus of trees in the myrtle family . They are native to Queensland and New South Wales in Australia. They are unusual among the Myrtaceae in that the leaves are opposite rather than alternate as is the norm for the family.The species are commonly known as turpentine trees due...
- SyzygiumSyzygiumSyzygium is a genus of flowering plants that belongs to the myrtle family, Myrtaceae. The genus comprises about 1100 species, and has a native range that extends from Africa and Madagascar through southern Asia east through the Pacific...
- TristaniaTristaniaTristania is a monotypic genus, native to New South Wales, Australia, closely related to Cistemon. The genus had a number of species, but some have been reclassified as Lophostemon and Tristaniopsis....
- UgniUgniUgni is a genus of about 10 species of plants in the myrtle family Myrtaceae, native to western South America and Central America from the Valdivian temperate rain forests of southern Chile and adjacent regions of southern Argentina, north to southern Mexico, and also the Juan Fernández Islands of...
- UromyrtusUromyrtusUromyrtus is a genus of approximately 15-20 species in the myrtle family Myrtaceae. The greatest diversity of species are found in New Caledonia and the remainder are found in Australia, New Guinea and Malesia. Two new species were recently described from Australia, U. lamingtonensis and U....
- WaterhouseaWaterhouseaWaterhousea is a genus of 4 species of small tree in the myrtle family Myrtaceae. They are endemic to Australia, along the eastern coast in New South Wales and Queensland...
- XanthostemonXanthostemonXanthostemon is a genus of plant in the myrtle family Myrtaceae. It contains 45 species and has a wide distribution including the Philippines, New Guinea, Australia, Indonesia and New Caledonia.Species include:* Xanthostemon chrysanthus Golden Penda...