Acrostalagmus luteoalbus (Link) Zare, W. Gams & Schroers | MYCO-LICH

Acrostalagmus luteoalbus (Link) Zare, W. Gams & Schroers

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Acrostalagmus luteoalbus (Link : Fr.) Zare, W. Gams & Schroers, Mycol. Res. 108(5): 581

Sporotrichum luteo-album Link, Ges. Naturf. Freunde Berlin Mag. Neuesten Entdeck. Gesammten Naturk. 3: 13, 1809 : Fries, Syst. mycol. 3: 424, 1832). basionym

 

Morphology

Anamorph: Conidiophores: Main stipe erect, more or less straight, repeatedly branched, pale reddish brown or yellowish at the base, almost hyaline at the apex. Basal cell of the conidiophore occasionally slightly bulbous on the natural substratum, but not in culture. Full-grown conidiophore stipes 200–400 mm long, 4–5 mm wide at the base, tapering to 3 mm in the upper part. Main axis often branched several times. Phialides arising in whorls of 3–5 at several levels along the main stipe and its branches. Main conidiophore axis and its branches usually terminating into a longer phialide, around which three to five shorter phialides are grouped in a verticil.

 

Conidiogenous cells : Phialides narrowly flask-shaped, only very slightly swollen at the base, tapering in the middle or upper part into a narrow neck which opens with an inconspicuous collarette; phialides subhyaline, measuring 10–25 × 2–4 mm in the widest part. Conidia forming rounded pale reddish brown slimy heads, oval, measuring 3.5–5 × 2–2.5 mm.

 

Teleomorph: Plectosphaerellaceae.

Most distinguishing character: Brick-red colony colour on PDA.

Distribution in Iran: Hyperparasitic on stromata of Daldinia cf. vernicosa (Schw.) Ces. & de Not. in Zirab (forest park), Mazandaran Province.

 

References:

Zare, R., Gams, W. and Schroers, H.-J. (2004). The type species of Verticillium is not congeneric with the plant-pathogenic species placed in Verticillium and it is not the anamorph of Nectria inventa. Mycological Research 108(5): 576–582.

Zare, R., Gams, W., Starink-Willemse, M. and Summerbell, R.C. (2007). Gibellulopsis, a suitable genus for Verticillium nigrescens, and Musicillium, a new genus for V. theobromae. Nova Hedwigia 85(3–4): 463–489.

Zare, R. and Asgari, B. (2008). Report of two new hyperparasitic species from Golestan Province. Rostaniha 8(2): 229–232 [English 116–117].

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