Curvularia subpapendorfii (Mouch.) Manamgoda, Rossman & K.D. Hyde. Stud Mycol.

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 : 193-194

Curvularia subpapendorfii (Mouch.) Manamgoda, Rossman & K.D. Hyde. Stud Mycol. 79: 282 (2014). ( Fig. 11 )

Basionym : Drechslera subpapendorfii Mouch., Revue Mycol., Paris 38: 107. 1973.

≡ Bipolaris subpapendorfii (Mouch.) Alcorn, Mycotaxon 17: 69. 1983.

Type material:— EGYPT, Mouch. (1973) Revue Mycol. (Paris) 38: 105, iconotype fig. 2 ; New Valley Region, on desert soil, 1974, J. Mouchacca (lectotype of Drechslera subpapendorfii MFLU 14-0336!) ; ibid. (ex-type culture CBS 656.74 !) .

Colonies on PDA, conidiophores (50–)152–280(–378) × 4–8 μm (av. = 166 SD = 114 n = 25; av. = 6, SD = 2 n = 25), arising singly, simple or branched, flexuous, septate, geniculate at spore bearing part, dark brown, paler towards apex. Conidiogenous nodes dark brown, smooth. Conidia (15–)18–24(–28) × (9–)11–13(–15) (av. = 21 SD = 3 n = 32; av. = 12 SD = 1 n = 32), smooth-walled, usually curved, sometimes straight, navicular, obpyriform, tapering towards rounded ends, pale brown to dark reddish brown, 2–3 (–4) (av. = 3) septate. Hilum usually inconspicuous or sometimes slightly protuberant.

Hosts:—Desert soil, also reported on Phaseolus aconitifolius .

Distribution:— India.

Notes:—This species was initially described in Drechslera and Alcorn (1983) placed it in the genus Bipolaris . However, when conidial measurements are compared with other Bipolaris species, C. subpapendorfii produces distinctively smaller conidia. Production of stroma in culture has not been observed in Bipolaris species, but is typical of some Curvularia species. According to our phylogenetic data this species grouped in Curvularia close to C. ellisii and C. neergaardii ( 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 11. Curvularia subpapendorfii (CBS 656.74).A–C) Conidiophores and conidia D–I) Conidia J) Germinating conidia. (A–C = 5 μm D = 10 μm E–J = 5 μm).