Your are here:

Alternaria alternata

Scientific Name
Alternaria alternata
Scientific Author
(Fr.) Keissl.
Taxonomy
(Ascomycota: Dothideomycetes: Pleosporales: Pleosporaceae )
Pest Status
1 NZ - Non-regulated species
Status
NZ - Native
Reliability
High
Download
PDF

Page menu options:

Diagnostic Images

In Life
Close
Caption
Alternaria alternata associated with large leaf lesions on peppers (Capsicum annuum)
Source
E. McKenzie Landcare Research
Image Options
Close
Diagnostic Images (4)
Diagnostic Notes
Disease

Saprobe, although sometimes associated with leaf spots.

Morphology

Conidiophores arising singly or in small groups, pale to golden brown, up to 50 µm long, 3–6 µm thick, with one or more distinct conidial scars. Conidia in branched chains of up to 15–20, sometimes separated by short secondary conidiophores, straight or slightly curved, obclavate, obpyriform, ovoid or ellipsoidal, with a short cylindrical beak, 7–25(–40) µm long, 5–12 µm wide, olivaceous, variously warted to verrucose, 1–7 (commonly 3) transverse septa, 0–2 longitudinal or oblique septa, constricted at septa.

Notes

This species, although commonly identified as such, is very much a species complex. Simmons (2007) gives an account of what he regards as the typical morphological type.

More Information
Specimen Contact
Eric McKenzie
Author
McKenzie, E.
Created
11/07/2013 07:50 AEST
Last Updated
07/05/2014 03:27 AEST
Citation
McKenzie, E. (2013) Alternaria alternata (Alternaria alternata ) Updated on 5/7/2014 3:27:09 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

Loading