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Streptopodium caricae Liberato & R. W. Barreto

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-07-26).

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

Type Information: Basionym: Streptopodium caricae Liberato & R. W. Barreto. Type: Streptopodium caricae Liberato & R. W. Barreto.

Taxonomic Literature: Taxonomic notes: +mycelium hemiendophytic (partly external and partly internal), inconspicuous to conspicuous and dense; +superficial hyphae entering the leaves through stomata, branched, 4.5–7.5 mm wide, septate, hyaline, smooth; +appressoria nipple-shaped; conidiophores foot-cells cylindrical, either straight or having a sinuous base (not spirally twisted), basal septum 4–17.5 mm displaced from the branching point of the mycelium. Liberato J. R., Barreto R. W. & Louro R. P., Mycological Research 108(10): 1185-1194 (2004).

Biogeography: Continent: Southern America (Brazil).

Ecology: Biotroph; phytopathogenic; growing on leaves (chlorotic, irregular, becoming yellow and coalescing with age affecting large areas of the lamina adaxially; soaked areas corresponding to areas with sparse greyish powdery fungal growth abaxially), hypophyllous. Host or Phorophyte Taxonomy: Carica papaya L.; Carica, Caricaceae.

Reproduction Strategy: Only known as sterile, asexually reproducing form.

Conidiomata: Present; hyphomycetous.

Conidiophores: Streptopodium-type; not branched (produced from the external mycelium, unbranched, cylindrical, 90–181r5–6.5 mm, 0–2 septate, hyaline, smooth); basal cells 50-133 µm long, 5-6.5 µm wide. Conidium Formation: Conidiogenous cells single or in chains (short (up tp three conidia), basipetal). Conidia: Ellipsoid, sub-cylindrical, or clavate; macroconidial (eggutulate, dimorphic: primary conidia lanceolate, apically pointed, base rounded, 37.5–81 x 10–21 µm; secondary conidia clavate, ellipsoid to subcylindrical, 40–81 x 10–21 µm, with rounded to truncate ends, l :w ratio 2.5–5.8, smooth), not branched, 40-81 µm long, 10-21 µm wide; aseptate; cell wall hyaline; without distinct fibrosin body fibrosin bodies.

(report generated 04.Okt.2007)

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