1. PaDIL Species Factsheet

Scientific Name: Puccinia arachidis Speg. (: : Pucciniales: )

Common Name Puccinia arachidis Live link: http://www.padil.gov.au/maf-border/Pest/Main/143068

Image Library New Zealand Biosecurity Live link: http://www.padil.gov.au/maf-border/

Partners for New Zealand Biosecurity image library

Landcare Research — Manaaki Whenua http://www.landcareresearch.co.nz/

MPI (Ministry for Primary Industries) http://www.biosecurity.govt.nz/ 2. Species Information

2.1. Details Specimen Contact: Eric McKenzie - [email protected] Author: McKenzie, E. Citation: McKenzie, E. (2013) Puccinia arachidis(Puccinia arachidis)Updated on 4/17/2014 Available online: PaDIL - http://www.padil.gov.au Image Use: Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY- NC 4.0)

2.2. URL Live link: http://www.padil.gov.au/maf-border/Pest/Main/143068

2.3. Facets Commodity Overview: Field Crops and Pastures Commodity Type: Fabaceous produce Distribution: Oceania Groups: Fungi & Mushrooms Host Family: Fabaceae Pest Status: 1 NZ - Non-regulated species Status: 0 NZ - Unknown

2.4. Diagnostic Notes **Disease** Leaf . Brown sori mainly on lower surface of leaf, often with a yellow halo.

**Morphology** _Aecia_ not known. _Uredinia_ cinnamon brown, ca 1 mm diam., mainly on lower surface of leaf. _Urediniospores_ cinnamon brown, subglobose, ellipsoidal or obovoid, aseptate, 22–30 × 16–24 µm, wall 1.5–2 µm thick, finely echinulate, with 2(–4) equatorial germ pores. _Telia_ cinnamon brown to almost black, ca 1 mm diam., mainly on lower surface of leaf. _Teliospores_ chestnut, ellipsoidal, 1-septate, 38–56 × 14–18 µm, wall 0.5–1 µm thick at sides, 3–5 µm thick at apex, smooth, 1 germ pore per cell; pedicel hyaline, up to 65 µm long.

**Notes** This rust, which has long been present in Central America and West Indies, spread around the world reaching India by 1969, Africa 1974, Malaysia 1971, Papua New Guinea 1972, and Australia 1973. Since about 1980 it has also been found in many other Pacific countries. There appear to be no records of telia and teliospores occurring in the Pacific.

2.5. References - Cummins, G.B. (1978). _Rust fungi on legumes and composites in North America_. University of Arizona Press, p. 181. - Gerlach, W.W.P. (1988). _Plant Diseases of Western Samoa_. Samoan German Crop Protection Project, Apia, Western Samoa, 146–147. - Hiratsuka, N., Sato, S., Katsuya, K., Kakishima, M., Hiratsuka, Y., Kaneko, S., Ono, Y., Sato, T., Harada, Y., Hiratsuka, T. & Nakayama, K. (1992). _The Rust Flora of Japan_. Tsukuba Shuppankai, Takezono, Ibaraki, p. 790. - Laundon, G.F. & Waterston, J.M. (1965). _Puccinia arachidis. CMI Descriptions of Pathogenic Fungi and Bacteria 53_, 1–2. 3. Diagnostic Images

Puccinia arachidis Puccinia arachidis on Arachis hypogaea In Life: E. McKenzie Landcare Research In Life: E. McKenzie Landcare Research

Results Generated: Saturday, September 25, 2021