to LIAS


Botanische Staatssammlung München © 1995–2008
Data remain intellectual property of the data set authors.



Podosphaera mors-uvae (Schwein.) U. Braun & S. Takam.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Sphaerotheca mors-uvae (Schwein.) Berk. & M.A. Curtis; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Erysiphe mors-uvae Schw.

Taxonomic Literature: Taxonomic notes: +secondary mycelium persistent, forming dense, pannose patches, often
confluent, covering the whole surface of leaves, white, later turning
to brown, persistent mycelium composed of long, setiform, +/- thick-
walled, yellowish to brown hyphae, about 4-9.5 µm wide, smooth
to somewhat rough, sparsely branched and septate;
+conidia germ
tubes arising from a side, moderately long;
+ascoc. outer cell walls
irregularly polygonal, ca. 8-25 µm diam.;
+ascoc. ext. fil.
length variable, mostly about as long as the cleistoth. diam. or
shorter, but sometimes longer, up to 3 times the cleistoth. diam.;.
Braun U., Beih. Nova Hedwigia 89: 1-700 [108] (1987).

Biogeography: Continent: Asia-Temperate, Europe, and Northern America (USA: generally distributed; Canada; introduced in Europe and Asia). Region(s): Siberia. Country or state(s): Japan.

Ecology: Biotroph; phytopathogenic; growing on fruits, stems, petioles, or leaves, amphigenous. Host or Phorophyte Taxonomy: Grossulariaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, not emerging, gregarious (usually), .07-.11 mm in diam.. Margin: External filaments present; interlaced with each other, mycelioid (but rather coarse), up to 3 µm long, 4-10 µm in diameter, hyaline or pigmented (later, brown), few, growing all across the lower half of the ascocarp, smooth or somewhat rough, thin or moderatly thick, not ramified, septate.

Asci: 1 asci per ascocarp, 65-100 µm long, 50-70 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (4)-8 per ascus, ellipsoid, sub-cylindrical (occasionally pea-shaped), or ovoid, 16-26.5 µm long, 8-15 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Not branched. Conidium Formation: Conidiogenous cells long in chains. Conidia: Broadly ellipsoid, cylindrical, or ovoid; macroconidial, not branched, 18-30 µm long, 11-20 µm wide; aseptate.

(report generated 04.Okt.2007)


In case that additional characters and states are required to be included in this data set, consult the LIAS Instructions to Participants and follow the procedures described there.

LIAS Home