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Queirozia turbinata Viégas & Cardoso

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-07-17); revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Pleochaeta turbinata (Viégas & Cardoso) U. Braun; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Queirozia turbinata Viégas & Cardoso. Type: Queirozia turbinata Viégas & Cardoso.

Taxonomic Literature: Taxonomic notes: +conidiophores foot-cells somewhat twisted;+special thick-walled aerial hyphae present, formed only at sites in the colony where ascomata are developing, rigid, simple or dichotomously branched, aseptate, subhyaline, ca. 2.5-6.5 µm wide, often forming a dense felt;+ascomata outer wall cells obscure, irregularly shaped, ca. 10-20 µm diam.;+ primary mycelium 3-6 µm wide, septate, branched, sinuous, thin-walled, hyaline to yellowish brown, mycelial appressoria indistinct to nipple-shaped. Braun U., Beih. Nova Hedwigia 89: 1-700 [574-576] (1987); Liberato J. R., Barreto R. W., Niinomi S. & Takamatsu S., Mycological Research 110: 567-574 (2006).

Biogeography: Continent: Southern America (Brazil, only known from the type collection).

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous (hemiendophytic (partly external and partially internal), penetrating leaves through stomata). Host or Phorophyte Taxonomy: Platycyamus regnellii Benth.; Platycyamus, Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid (reddish-brown), orbicular (turbinate, dorsiventral), forming independently from the host thallus or mycelium, not emerging (embedded in the dense mycelial felt), scattered or gregarious, .28-.45 mm in diam.. Margin: External filaments present; uncinate or circinate, .8-1 µm long, 7-10 µm in diameter, hyaline, few, growing on the upper half of the ascocarp, stiff and straight (rather), smooth, thin, not ramified, aseptate.

Asci: Up to 80 asci per ascocarp, clavate or cylindrical, distinctly stipitate, 65-90 µm long, 20-30 µm wide; dehiscence unitunicate (numerous, thick-walled).

Ascospores: 1–2 to c. 4 (rarely 4-spored) per ascus, spores 2-4 per ascus, ellipsoid (containing a big oil droplet), 25-32 µm long, 16-20 µm wide; septa absent; wall hyaline.

Conidiomata: Present; hyphomycetous.

Conidiophores: Not branched (arising from the external mycelium, cylindrical, hyaline to yellowish brown; foot cells straight, sometimes sinuous, followed by 0-2 cells, basal septum 2-14 µm displaced from the branching point of the mycelium); conidiophore cells 64-110 µm long, basal cells 30-74 µm long, 4-6 µm wide. Conidium Formation: Conidiogenous cells single or in chains (very rarely short chains with two conidia). Conidia: Ellipsoid (or somewhat pointed), citriform (lemon-shaped), or nearly clavate; macroconidial (l/w ratio 1.3-2.9(-3.8), yellowish brown, sometimes containing a few big oil droplets; germ tubes at an end, simple and narrow, with indistinct appressorium; surface pattern (SEM) of tightly reticulated laminar ridges), not branched, 32-74 µm long, 16.5-37 µm wide; aseptate; without distinct fibrosin body fibrosin bodies.

(report generated 04.Okt.2007)

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