Curvularia nicotiae (Mouch.) Y.P. Tan & R.G. Shivas, Australas. Pl. Pathol.

Manamgoda, Dimuthu S., Rossman, Amy Y., Castlebury, Lisa A., Chukeatirote, Ekachai & Hyde, Kevin D., 2015, A taxonomic and phylogenetic re-appraisal of the genus Curvularia (Pleosporaceae): human and plant pathogens, Phytotaxa 212 (3), pp. 175-198 : 190

Curvularia nicotiae (Mouch.) Y.P. Tan & R.G. Shivas, Australas. Pl. Pathol. 43: 600 (2014). ( Fig. 8 )

Basionym : Drechslera nicotiae Mouch., Revue Mycol. (Paris) 38: 108. 1975. [1974].

≡ Bipolaris nicotiae (Mouch.) Alcorn, Mycotaxon 17: 68. 1983.

Type material:— ALGERIA, isolated from desert soil, 1974, J. Mouchacca, (holotype of Drechslera nicotiae CBS-H-07030!), ibid. (isotype of Drechslera nicotiae CBS H-7030!; ex-isotype culture - CBS 655.74!).

Colonies on PDA, conidiophores up to 50–250 (–300) × (3–)4–8 μm wide (av. = 150 SD = 100 n = 20; av. = 6 SD = 2 n = 10) arising singly, usually straight or rarely branched, smooth, flexuous, geniculate, pale to dark brown. Conidia 27–35 (–40) × 16–22 μm (av. = 31 SD = 4 n = 32; av. = 19 SD = 3 n = 32), smooth, straight or sometimes curved, obovoid or sometimes ellipsoid, rounded at apex, rounded or truncate at base, hyaline or pale brown when young, becoming olivaceous brown at maturity, 3–5 (–6)-distoseptate. Hilum slightly protuberant.

Hosts:—Desert soil, also reported from Malva sylvestris .

Distribution:— Algeria, also reported from China.

Notes:—This species has short, wide conidia that are typical of Curvularia . Based on the phylogeny including the ex-type culture, this species is transferred to Curvularia ( Tan et al. 2014) . Curvularis nicotiae is closely related to C. nodulosa in the phylogeny ( Fig. 1 ).

Figures

FIGURE 1. Phylogram generated for Curvularia from a maximum likelihood analysis based on the combined ITS, GPDH and TEF alignment. Maximum likelihood bootstrap values are shown above the branches. The thickened branches correspond to Bayesian posterior probability values more than 0.7. All ex-type cultures are printed in bold.

FIGURE 8. Curvularia nicotiae (CBS 655.74).A) Conidiophore and conidia B–E) Conidia (All scale bars = 5 μm).