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PicturesTop of page
IdentityTop of page
Preferred Scientific Name
- Pucciniastrum coryli Kom. 1899
Summary of InvasivenessTop of page
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 TreeTop of page
- Domain: Eukaryota
- Kingdom: Fungi
- Phylum: Basidiomycota
- Subphylum: Pucciniomycotina
- Class: Pucciniomycetes
- Order: Pucciniales
- Family: Pucciniastraceae
- Genus: Pucciniastrum
- Species: Pucciniastrum coryli
DescriptionTop of page
Spermogonia on current-year needles, amphigenous, subcuticular, hemispherical or conical, with flat hymenia, 85-150 µm diameter, 55-75 µm high, yellow-orange changing to brown; spermatia oblong-ellipsoid to ellipsoid, 4.0-5.0 x 1.5-2.0 µm, colourless. Aecia on current year needles, hypophyllous, cylindrical, 0.2-0.3 mm wide, 0.5-1.5 mm long, orange; peridial cells colourless, firm, rupturing at the apex; peridial cells oblong-ellipsoid to ellipsoid, 30-93 x 12-23 µm, overlapping, inner walls 2.0-2.5 µm thick, verrucose with striae, outer wall 1.5-2.0 µm thick, finely verrucose; aeciospores ellipsoid, obovate or subglobose, 20-27 x 13-20 µm, densely verrucose, occasionally with a reticulum-like area resulting from fused verrucae, 0.5-1.5 µm high, contents yellow. Uredinia hypophyllous, subepidermal, scattered, or rarely grouped, often thickly, scattered over the whole leaf surface, round, minute, 0.1-0.2 mm diameter, pale-yellow, at least somewhat pulverulent; peridia hemispherical, delicate, rupturing at apex; upper peridial cells small, isodiametrically to irregularly polygonal, 8-22 µm wide, lateral ones radially elongate, walls of peridial cells thin, 1-2 µm thick, smooth, nearly colourless; ostiolar cells globose or ellipsoid, walls rather thick, 2-4 µm, smooth, colourless; urediniospores obovate, ellipsoid or oblong, 18-27 x 10-16 µm, walls 1.2-1.5 µm thick, uniformly echinulate, nearly colourless, four to seven germ pores, bizonate, contents orange-yellow. Telia hypophyllous, subepidermal, minute, in dense clusters limited by veins, brownish-yellow; teliospores intercellular, solitary or grouped, often compacted laterally under epidermis, oblong or polygonal, 1-7-septate, 18-30 x 12-24 µm, smooth, pale-brownish. Basidiospores globose, 5-8 µm diameter, cytoplasm pale-yellow. See Kaneko and Hirastuka (1981) and Hirastuka et al. (1992) for more detailed descriptions.
Distribution TableTop of page
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.
|Continent/Country/Region||Distribution||Last Reported||Origin||First Reported||Invasive||Reference||Notes|
|-Jilin||Present||Kaneko and Hiratsuka, 1981|
|Japan||Present||Liang et al., 2006|
|-Hokkaido||Present||Kaneko and Hiratsuka, 1981|
|-Honshu||Present||Hiratsuka et al., 1992|
|-Kyushu||Present||Kaneko and Hiratsuka, 1981|
|Korea, Republic of||Present||Spaulding, 1961; Cho and Shin, 2004|
|Russian Federation||Present||Present based on regional distribution.|
|-Western Siberia||Present||Kuprevich and Transchel, 1957|
Habitat ListTop of page
|Terrestrial – Managed||Managed forests, plantations and orchards||Present, no further details|
|Terrestrial ‑ Natural / Semi-natural||Natural forests||Present, no further details|
Host Plants and Other Plants AffectedTop of page
|Abies firma (momi fir)||Pinaceae||Wild host|
|Abies homolepis (Nikko fir)||Pinaceae||Wild host|
|Abies veitchii (Veitch's silver fir)||Pinaceae||Wild host|
|Corylus avellana (hazel)||Betulaceae||Main|
|Corylus colurna||Betulaceae||Wild host|
|Corylus heterophylla (siberian hazel)||Betulaceae||Wild host|
|Corylus heterophylla var. thunbergii||Betulaceae||Wild host|
|Corylus sieboldiana||Betulaceae||Wild host|
|Corylus sieboldiana var. mandshurica||Betulaceae||Wild host|
List of Symptoms/SignsTop of page
|Leaves / abnormal leaf fall|
|Leaves / fungal growth|
|Leaves / necrotic areas|
|Leaves / yellowed or dead|
Plant TradeTop of page
|Plant parts liable to carry the pest in trade/transport||Pest stages||Borne internally||Borne externally||Visibility of pest or symptoms|
|Leaves||fruiting bodies; spores||Pest or symptoms usually visible to the naked eye|
Impact SummaryTop of page
Risk and Impact FactorsTop of page Invasiveness
- Invasive in its native range
- Proved invasive outside its native range
- Host damage
- Parasitism (incl. parasitoid)
DiagnosisTop of page
Spermogonia and aecia are often observed on current-year needles on Abiesfirma, Abies homolepis and Abies veitchii (Kaneko and Hiratsuka, 1981).
ReferencesTop of page
Chen MM, 2002. Forest fungi phytogeography: Forest fungi phytogeography of China, North America, and Siberia and international quarantine of tree pathogens. Sacramento, California, USA: Pacific Mushroom Research and Education Center.
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.
Liang YingMei; Tian ChengMing; Kakishima M, 2006. Phylogenetic relationships on 14 morphologically similar species of Pucciniastrum in Japan based on rDNA sequence data. Mycoscience, 47(3):137-144. http://www.springerlink.com/content/g71243786204477j/?p=e00b1560ac6843909e2164c25b1a4217&pi=4
ContributorsTop of page
22/01/09 Original text by:
Distribution MapsTop of page
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