Ochropsora ariae

Pictures

Picture	Title	Caption	Copyright
Title Aecia Caption Aecia of Ochropsora ariae on Anemone nemorosa. Original x2.5. Copyright USDA-ARS/Systematic Mycology & Microbiology Laboratory	Aecia	Aecia of Ochropsora ariae on Anemone nemorosa. Original x2.5.	USDA-ARS/Systematic Mycology & Microbiology Laboratory
Title Aeciospores Caption Aeciospores of Ochropsora ariae on Anemone nemorosa. Original x400. Note scale bar. Copyright USDA-ARS/Systematic Mycology & Microbiology Laboratory	Aeciospores	Aeciospores of Ochropsora ariae on Anemone nemorosa. Original x400. Note scale bar.	USDA-ARS/Systematic Mycology & Microbiology Laboratory
Title Peridial cells Caption Peridial cells of Ochropsora ariae on Anemone nemorosa. Original x400. Note scale bar. Copyright USDA-ARS/Systematic Mycology & Microbiology Laboratory	Peridial cells	Peridial cells of Ochropsora ariae on Anemone nemorosa. Original x400. Note scale bar.	USDA-ARS/Systematic Mycology & Microbiology Laboratory
Title Peridial cells Caption Peridial cells on surface of Ochropsora ariae on Anemone nemorosa. Original x400. Note scale bar. Copyright USDA-ARS/Systematic Mycology & Microbiology Laboratory	Peridial cells	Peridial cells on surface of Ochropsora ariae on Anemone nemorosa. Original x400. Note scale bar.	USDA-ARS/Systematic Mycology & Microbiology Laboratory

Identity

Preferred Scientific Name

• Ochropsora ariae (Fuckel) Ramsb. 1923

Other Scientific Names

• Aecidium anemones Pers. 1801
• Aecidium leucospermum DC. 1805
• Caeoma sorbi Oudem. 1873
• Melampsora ariae Fuckel 1870
• Melampsora pallida Rostr. 1877
• Ochropsora pallida (Rostr.) Lind 1913

Summary of Invasiveness

There is little published information on this plant pathogenic fungus, which has limited geographic distribution. As hosts exist in other regions of the world with similar environmental conditions, this species may pose a threat to native or agricultural plants if introduced.

Taxonomic Tree

• Domain: Eukaryota
•     Kingdom: Fungi
•         Phylum: Basidiomycota
•             Subphylum: Pucciniomycotina
•                 Class: Pucciniomycetes
•                     Order: Pucciniales
•                         Family: Uropyxidaceae
•                             Genus: Ochropsora
•                                 Species: Ochropsora ariae

Notes on Taxonomy and Nomenclature

Hiratsuka et al. (1992) list several other names as synonyms including Ochropsora sorbi (Winter) Dietel 1895. There seems to be some controversy about this, so the author of this datasheet prefers to take a more conservative approach and omit the taxonomic synonyms at this time (2009).

Description

Spermogonia amphigenous, more or less evenly scattered, subcuticular, conical, 110-140 µm wide, 60-100 µm high. Aecia hypophyllous or on abaxial leaf surface, aecidioid, surrounded by well-developed peridium, cupulate; peridial cells cubical, outer walls smooth, inner walls verrucose; aeciospores produced in chains, subglobose or broadly ellipsoid, often angular, 14-27 x 13-21 µm; walls thin, hyaline, densely warted. Uredinia hypophyllous or on abaxial leaf surface, minute, round, 0.15-0.25 mm diameter; paraphyses incurved, variable in size, 29-77 x 8-19 µm; urediniospores broadly ellipsoid or obovoid, 21-28 x 17-23 µm; walls 1.5-2.0 µm thick, hyaline, verrucose to echinulate. Telia hypophyllous, scattered or irregularly aggregated on yellowish to reddish spots, subepidermal, becoming erumpent; teliospores broadly cylindric, round at apex, 35-65 x 9-18 µm, 4-celled basidia continuously replacing teliospores; basidiospores obovoid to ellipsoid or narrowly ellipsoid, 20-25 x 7-10 µm; probasidia developing under host epidermis, sessile, walls thin and fragile, oblong to cylindrical, variable, 27-47 x 9-18 µm. See Hiratsuka et al. (1992) and Ono (2006) for more detailed descriptions.

Distribution Table

The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Habitat List

Hosts/Species Affected

Based on artificial inoculation experiments, Ono (2006) confirmed that, in Japan, the spermogonial and aecial host of O. ariae is Anemone pseudo-altaica and the uredinial and telial stages are produced on Aruncus dioicus var. tenuifolius.

Host Plants and Other Plants Affected

List of Symptoms/Signs

Plant Trade

Impact Summary

Risk and Impact Factors

Impact mechanisms

• Parasitism (incl. parasitoid)
• Pathogenic

Impact outcomes

• Host damage

References

Adamska I, 2001. Microscopic fungus-like organisms and fungi of the Slowinski National Park II (NW Poland). Acta Mycologica, 36:31-65.

Bahcecioglu Z, Gjaerum HB, 2004. New and rare rust fungi (Uredinales) from Anatolia (Turkey) - 2. Mycotaxon, 90(1):55-68.

Balfour-Browne Frances L, 1955. Some Himalayan fungi. Bull. Brit. Mus. (nat. Hist.), Bot, 1(7):187-218 pp.

BPI (US National Fungus Collections), 2009. Fungal Databases - Specimens. Beltsville, USA: Systematic Mycology and Microbiology Laboratory, Agricultural Research Service, USDA. www.nt.ars-grin.gov/fungaldatabases/specimens/specimens.cfm

Denchev CM, 1995. Bulgarian Uredinales. Mycotaxon, 55:405-465

Henderson DM, 2000. Checklist of the Rust Fungi of the British Isles. UK: British Mycological Society, 36 pp.

Henderson DM, Bennell AP, 1979. British rust fungi: additions and corrections. Notes from the Royal Botanic Garden Edinburgh, 37(3):475-501.

Hiratsuka N, Chen ZC, 1991. A list of Uredinales collected from Taiwan. Transactions of the Mycological Society of Japan, 32:3-22.

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. Takezono, Ibaraki, Japan: Tsukuba Shuppankai, 1205 pp.

Hylander N, Jorstad I, Nannfeldt JA, 1953. [English title not available]. (Enumerato Uredinearum Scandinavicarum.) Opera Botanica a Societate Botanica Lundensi, 1:1-102.

Kuprevich V, Transchel V, 1957. Cryptogamic plants of the USSR, Vol. IV, Rust Fungi. No. 1, Family Melampsoraceae. Moscow, USSR: USSR Academy of Sciences.

Ono Y, 2006. Taxonomic implications of life cycle and basidium morphology of Ochropsora ariae and O. nambuana (Uredinales). Mycoscience, 47(3):145-151. http://www.springerlink.com/content/q31664t77jp83173/?p=e00b1560ac6843909e2164c25b1a4217&pi=5

Pantidou ME, 1973. Fungus-host index for Greece. Kiphissia, Greece: Benaki Phytopathological Institute, 382 pp.

Savchenko KG, Heluta VP, Wasser SP, Nevo E, 2014. Rust fungi (Pucciniales) of Israel. I. All genera except Puccinia and Uromyces with Caeoma origani sp. nov. Nova Hedwigia, 98(1/2):163-178. http://www.schweizerbart.de/resources/downloads/paper_previews/81651.pdf

Zhuang JY, 1983. A provisional list of Uredinales of Fujian Province, China. Acta Mycologica Sinica, 2(3):146-158

Zhuang WY, 2005. Fungi of Northwestern China. Ithaca, USA: Mycotaxon Ltd, 430 pp.

Contributors

10/09/09 Original text by:

Distribution Maps

• = Present, no further details
• = Evidence of pathogen
• = Widespread
• = Last reported
• = Localised
• = Presence unconfirmed
• = Confined and subject to quarantine
• = See regional map for distribution within the country
• = Occasional or few reports

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