A systematic account of the genus Plagiostoma (Gnomoniaceae, Diaporthales) based on morphology, host-associations, and a four-gene phylogeny

L. C. Mejía, L. A. Castlebury, A. Y. Rossman, M. V. Sogonov, Jr F. White

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

Members of the genus Plagiostoma inhabit leaves, stems, twigs, and branches of woody and herbaceous plants predominantly in the temperate Northern Hemisphere. An account of all known species of Plagiostoma including Cryptodiaporthe is presented based on analyses of morphological, cultural, and DNA sequence data. Multigene phylogenetic analyses of DNA sequences from four genes (β-tubulin, ITS, rpb2, and tef1-α) revealed eight previously undescribed phylogenetic species and an association between a clade composed of 11 species of Plagiostoma and the host family Salicaceae. In this paper these eight new species of Plagiostoma are described, four species are redescribed, and four new combinations are proposed. A key to the 25 accepted species of Plagiostoma based on host, shape, and size of perithecia, perithecial arrangement in the host, and microscopic characteristics of the asci and ascospores is provided. Disposition of additional names in Cryptodiaporthe and Plagiostoma is also discussed.

Original languageEnglish (US)
Pages (from-to)211-235
Number of pages25
JournalStudies in Mycology
Volume68
DOIs
StatePublished - Mar 22 2011

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

Keywords

  • Ascomycota
  • Betulaceae
  • Epitypification
  • Fraxinus
  • New species
  • Phylogeny
  • Salicaceae
  • Sordariomycetidae

Fingerprint

Dive into the research topics of 'A systematic account of the genus Plagiostoma (Gnomoniaceae, Diaporthales) based on morphology, host-associations, and a four-gene phylogeny'. Together they form a unique fingerprint.

Cite this