Erysiphe indigoferae (H. D. Shin & Y. J. La) U. Braun & S. Takam.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Microsphaera indigoferae H. D. Shin & Y. J. La. Type: Microsphaera indigoferae H. D. Shin & Y. J. La.

Taxonomic Literature: Taxonomic notes: + ascomata outer wall cells polygonal, 10-26 µm wide, distinct; vegetative hyphae substraigth to somewhat wavy, 40-65 × 3,5-6,5 µm, branching at right or narrow angle, with a septum near the branching point; appressoria multilobed to moderately lobed, opposite in pairs or single. Shin H. D., Erysiphaceae of Korea. 1-320 [112-114]. Suwon, Korea (2000).

Biogeography: Continent: Africa, Asia-Temperate, and Asia-Tropical (Indonesia). Region(s): Southern Africa and China (Inner Mongolia). Country or state(s): Japan and Korea (North & South).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Indigofera kirilowi Maxim.; Indigofera, Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid (dark brown), orbicular (depressed globose), forming independently from the host thallus or mycelium, scattered or in loose groups, .99-.133 mm in diam.. Margin: External filaments present; mycelioid or setiform, recurved (rarely recurved in the outer ultimate tips) or straight, 1.5-3 µm long, 5-8-(10.4) µm in diameter, sub hyaline or pigmented (brown to light brown below the septum, subhyaline to the top), numerous, 10-17 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight or geniculate (bent) (substraigth to bent or flaccid), thin or moderatly thick (at the base and thinner upwards), ramified, dichotomously branched (4-6 times, primary branches same in length, but in higher branches outer ones shorter and divided once more than inner ones, resulted in characteristic mode of branching habit, usually with abrupt swellings below the branches, somewhat short or long on the same ascoma), aseptate or septate.

Asci: 6-9 asci per ascocarp, not stipitate or indistinctly stipitate, 57-70 µm long, 34-47 µm wide; dehiscence unitunicate (moderately thick-walled, but usually thinner at the upper part).

Ascospores: c. 8 per ascus, spores 5-7 per ascus, ellipsoid or ovoid, 19-23 µm long, 11-14 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched (single on a hyphal cell, arising from the upper part of mother cells, position mostly central, gradually broader towards the tip, flexuous at the base of foot cells, followed by 2 cells, with a basal septum at the branching point of the mycelium); conidiophore cells 65-130 µm long, basal cells 5-7-(8.3) µm wide. Conidium Formation: Conidiogenous cells single. Conidia: Oval, cylindrical, or fusiform; macroconidial (germ tubes at the shoulder, terminating in multilobed appressoria), not branched, 26-34 µm long, 12-15 µm wide; aseptate; without distinct fibrosin body fibrosin bodies.

(report generated 04.Okt.2007)