Submitted to: Taxon
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/2/2017
Publication Date: 8/18/2017
Citation: Rossman, A.Y., Allen, W.C., Castlebury, L.A., Edwards, J. 2017. Proposals to conserve Pyrenophora japonica (Drechslera japonica) against Helminthosporium tuberosum (D. tuberosa) and H. fragosoi, Pyrenophora loliiagainst H. siccans (D. siccans), and Pleosphaeria seminiperda (Pyrenophora seminiperda) against Angiopora campanulata (D. campanulata), Podosporiella verticillata, and H. cyclops (Bipolaris cyclops) (Ascomycota: Dothideomycetes: Pleosporales). Taxon. 66(4):982-983. https://doi.org/10.12705/664.16. Interpretive Summary: Recent changes in the rules by which fungi are named have caused problems in knowing what to call some agriculturally or environmentally important fungi. Numerous papers have been published with recommendations on which name should be used for major groups of plant pathogens but some individual species have been overlooked. In this paper all known information is used to decide the correct names for three fungal species causing diseases of grasses. This work is significant because it will allow correct identification of these disease-causing fungi on an important group of plants. These results will be used by scientists and plant quarantine officials who need accurate scientific names to communicate about diseases caused by fungi.
Technical Abstract: The genus Pyrenophora Fr. (1849), with type P. phaeocomes (Rebent.) Fr. (1849), is a sexually typified genus that is congeneric with the asexually typified genus Drechslera S. Ito (1930), with type D. tritici-vulgaris (Y. Nisik.) S. Ito, now regarded as a synonym of P. tritici-repentis (Died.) Dreschler (1923). The synonymy of these generic names and their distinction from Bipolaris Shoemaker (1959) and Curvularia Boedijn (1933) were confirmed by Zhang & Berbee (in Mycologia 93: 1048. 2001). Pyrenophora has priority and has been recommended for use over Drechslera (Rossman & al. in IMA Fungus 6: 507. 2015). Many species of Pyrenophora cause serious leaf spot diseases of cereals and grasses in the field and decay of seeds (Sivanesan in Mycol. Pap. 158: 1. 1987), thus the fungal names discussed here represent economically important plant pathogens. The synonyms listed are taken primarily from Sivanesan (l.c.). In addition, many of the connections between sexual and asexual morphs were confirmed by Zhang & Berbee (l.c.). These widely used names in Pyrenophora are proposed for conservation following Article 14.2 of the ICN.