Pleosporales » Dictyosporiaceae » Dendryphiella

Dendryphiella phitsanulokensis

Dendryphiella phitsanulokensis N.G. Liu & K.D. Hyde, in Hyde et al., Mycosphere 9(2): 287 (2018),

 

Facesoffungi number: FoF 03897

Holotype: THAILAND, Phitsanulok Province, on decaying wood, 10 October 2016, N. Liu, J4 (MFLU 17-2651), ex-type living culture, MFLUCC 17-2513.

 

Sexual morph: Undetermined. Asexual morph: Colonies on natural substrate superficial, effuse, dark brown to black. Conidiophores 150–300 μm long, 4–6 μm wide, macronematous, mononematous, fasciculate, dark brown at base, slightly paler towards the apex, thick-walled, erect, straight or slightly

flexuous, finely verruculose, septate, unbranched or rarely branched. Conidiogenous cells 22–38 × 3.5–8 μm ( ̄x= 31 × 6 μm, n = 20), polytretic, terminal, later becoming subterminal, proliferating asymmetrically, integrated, brown, finely verrucose, enlarged at apex. Conidia (10 –)16–31 × 5–9 μm ( ̄x= 24 × 7 μm, n = 60), solitary to catenate, when catenate in acropetal chain, fusiform to ellipsoidal,

rounded at apex, truncate at base, pale brown to brown or dark brown, 3-septate, constricted at the medium septum, slightly constricted at other septa, thick-walled, verrucose.

 

Culture characteristics: Colonies growing on MEA reaching 25 mm diam. after 10 days at 25 °C, circular, umbonate to flat, moderately dense, surface white, grayish white at the margin, reverse dark yellowish to blackish brown at the middle, white at the margin, smooth surface with edge entire

to slightly curled.

 

Material examined: THAILAND, Chiang Rai Province, Mueang District, on dead culms of Brachiaria mutica (Forssk.) Stapf (Poaceae), 28 January 2017, N. Huanraluek, Gkk1 (MFLU 18-0757; HKAS 97496), living culture MFLUCC 17-2242.

 

Known host and distribution: On decaying wood and dead culms (Thailand) (Liu et al. 2017).

 

GenBank Accession No: ITS: MH118115, LSU: MH109525

 

Notes: Dendryphiella phitsanulokensis was described in Thailand on decaying wood (Hyde et al. 2018b). This is the first report of D. phitsanulokensis on Brachiaria mutica. The new collection (MFLU 18-0757) and the type material (MFLU 17-2651; Hyde et al. 2018b) are morphologically very similar. In addition, there is also no phylogenetic divergence in the strain MFLUCC 17-2242 compared to the ex-type strain of D. phitsanulokensis (Fig. 17). Two Dendryphiella species have been so far recorded from Thailand (Liu et al. 2017c; Hyde et al. 2018b).

 

Figure 12. Dendryphiella phitsanulokensis (MFLU 18-0757). a, b Colonies on substrate. d−i Conidiophores and developing conidia. j – m Conidia. n Germinating conidium. Scale bars: c –g = 50 μm, h–m = 10 μm, n = 20 μm

Reference:

 

Hyde KD, Dong Y, Phookamsak R, Jeewon R et al. (2020) Fungal diversity notes 1151–1276: taxonomic and phylogenetic contributions on genera and species of fungal taxa. Fungal Divers 100:5–277.

 

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