Magnaporthaceae Cannon et al
Pathogenic on monocotyledons or saprobic on plant material. Sexual morph: Ascomata perithecial, solitary or scattered, black, superficial or immersed in plant tissue, globose to subglobose, with cylindrical, black, periphysate neck. Peridium comprising a few to several layers of cells of textura epidermoidea. Paraphyses hyaline, septate, intermingled among asci. Asci 8- spored, unitunicate, subcylindrical, short-pedicellate, with an apical ring. Ascospores biseriate, hyaline to olivaceous, filiform or fusoid, curved to sigmoid, with or without transverse septate ends, bluntly rounded, lacking sheaths. Asexual morph: Hyphomycetous, at times formed from sclerotia. Conidiophores unbranched or branched. Conidiogenous cells integrated, pigmented, phialidic with collarettes, or denticulate. Conidia variable in shape, hyaline to pale brown, straight or curved, with or without septa (adapted from Maharachchikumbura et al. 2016b).
Type genus – Nakataea Hara
Notes: Magnaporthaceae was introduced by Cannon (1994). The placement of taxa of Magnaporthaceae has long been problematic due to the lack of convincing morphological and inconclusive molecular data (Thongkantha et al. 2009). Based on DNA phylogenies, Magnaporthaceae was placed as a family in the Sordariomycetes (Kirk et al. 2001, Lumbsch & Huhndorf 2007, Maharachchikumbura et al. 2016). Thongkantha et al. (2009) established a new order, Magnaporthales to accommodate Magnaporthaceae based on characters and phylogenetic analysis. The family was originally described with six genera (Cannon 1994). Kirk et al. (2001) accepted nine genera while Kirk et al. (2008) accepted 13 genera. Luo et al. (2014) established Pseudophialophoda in the family. Maharachchikumbura et al. (2016b) provided an updated account with 22 genera and a key to species. A new genus, Bifusisporella was also introduced by Silva et al. (2009). In this study we accept 23 genera in Magnaporthaceae based on publications and taxonomy.
Hyde KD, Norphanphoun C, Maharachchikumbura SSN, Bhat DJ et al. (2020) Refined families of Sordariomycetes. Mycosphere 11, 305–1059
Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. (2016) Families of Sordariomycetes. Fungal Diversity 79, 1–317
Cannon PF. 1994. Observations on coevolution of the Phyllachoraceae (Fungi: Ascomycota) with the Leguminosae. In: Sprent JJ & McKey D (Eds.). Advances in Legume Systematics vol. 5. The Nitrogen Factor 179–188
Thongkantha S, Jeewon R, Vijaykrishna D, Lumyong S et al. (2009) Molecular phylogeny of Magnaporthaceae (Sordariomycetes) with a new species Ophioceras chiangdaoense from Dracaena loureiroi in Thailand. Fungal Diversity 34, 157–173.
Kirk PM, Cannon PF, David JC, Stalpers JA. (2001) Ainsworth and Bisby’s Dictionary of the Fungi, 8th edn. CABI Publishing, London
Lumbsch HT, Huhndorf SM. (2007) Outline of Ascomycota 2007. Myconet 13, 1–58
Kirk PM, Cannon PF, Minter DW, Stalpers JA. (2008) Dictionary of the Fungi 10th edn. CABI, Wallingford
Luo J, Walsh E, Zhang N. (2014) Four new species in Magnaporthaceae from grass roots in New Jersey Pine Barrens. Mycologia 106, 580–588