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Albugo candida

Scientific Name
Albugo candida
Scientific Author
(Pers.) Roussel
Taxonomy
(Oomycota: Oomycetes: Albuginales: Albuginaceae)
Pest Status
2 NZ - Regulated pest
Status
NZ - Exotic
Reliability
High
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Diagnostic Images

In Life
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Caption
Albugo candida sporangial pustules on leaves of Lepidium oleraceum
Source
E. Cameron, 2008 Landcare Research
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Diagnostic Images (5)
Diagnostic Notes
Disease

White blister, white rust. White or yellowish sporangial pustules (blisters), often in concentric groups and often confluent, mainly on lower surface of leaves, also on petioles and flowers, sometimes causing hypertrophy.

Morphology

Sporangiophores 30-45 x 15-18 µm, non-septate, hyaline. Sporangia in basipetal chains (oldest at top), globose to oval, 12-18 µm diam., hyaline, thin-walled. Oospores rarely found in leaves, usually in stems, globose, brownish, 30-55 µm diam., wall thick, tuberculate with low blunt ridges that are often confluent and irregularly branched.

Notes Recent molecular studies have enabled distinct species to be separated from Albugo candida sens lat. However, it has also been found that A. candida sens. str. has a wide host range within the Brassicaceae and also extends to the closely related Cleomaceae and Capparaceae (Choi, et al., 2007).
More Information
Specimen Contact
Eric McKenzie
Author
McKenzie, E.
Created
05/07/2013 07:00 AEST
Last Updated
18/07/2013 12:00 AEST
Citation
McKenzie, E. (2013) Albugo candida (Albugo candida) Updated on 7/18/2013 12:00:28 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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