title: Four new species in Magnaporthaceae from grass roots in New Jersey Pine Barrens.
abstract: Based on morphology and DNA sequences of SSU, ITS, LSU, MCM7, RPB1 and TEF1 genes, we describe four new species in Magnaporthaceae that are associated with grass roots collected from New Jersey Pine Barrens. A new genus, Pseudophialophora, is erected to accommodate three species, which is characterized by slow growth on potato dextrose agar, curved conidiogenous cells without a conspicuous collarette at the apex and oblong ellipsoidal conidia. Pseudophialophora eragrostis, P. panicorum and P. schizachyrii are assigned to this genus. A new species of Magnaporthiopsis also is reported and named as M. panicorum. Distinctions between them and phylogenetic relationships with other Magnaporthaceae taxa are discussed.
authors.affiliation: Department of Plant Biology and Pathology, 201 Foran Hall, 59 Dudley Road, Rutgers University, New Brunswick, New Jersey 08901.
authors.forename: Jing
authors.initials: J
authors.lastname: Luo
authors.affiliation: Department of Plant Biology and Pathology, 201 Foran Hall, 59 Dudley Road, Rutgers University, New Brunswick, New Jersey 08901.
authors.forename: Emily
authors.initials: E
authors.lastname: Walsh
authors.affiliation: Department of Plant Biology and Pathology, 201 Foran Hall, 59 Dudley Road, Rutgers University, New Brunswick, New Jersey 08901 zhang@aesop.rutgers.edu.
authors.forename: Ning
authors.initials: N
authors.lastname: Zhang
mesh_terms: D001203:Ascomycota / Q000145:classification / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification*; D004271:DNA, Fungal / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D008969:Molecular Sequence Data; D010802:Phylogeny; D018517:Plant Roots / Q000382:microbiology; D006109:Poaceae / Q000382:microbiology*; D013172:Spores, Fungal / Q000145:classification / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification
chemical_list: D004271:DNA, Fungal; D004275:DNA, Ribosomal
keywords: Harpophora; Magnaporthe; Phialophora; Pseudophialophora; Pyricularia; multigene phylogeny; systematics; taxonomy