The phoma-like dilemma

L.W. Hou, J.Z. Groenewald, L.H. Pfenning, O. Yarden, P.W. Crous*, L. Cai

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Species of Didymellaceae have a cosmopolitan distribution and are geographically widespread, occurring in diverse ecosystems. The family includes several important plant pathogenic fungi associated with fruit, leaf, stem and root diseases on a wide variety of hosts, as well as endophytic, saprobic and clinically relevant species. The Didymellaceae was recently revised based on morphological and phylogenetic analyses of ex-type strains subjected to DNA sequencing of partial gene data of the LSU, ITS, rpb2 and tub2 loci. Several poly- and paraphyletic genera, including Ascochyta, Didymella and Phoma were redefined, along with the introduction of new genera. In the present study, a global collection of 1 124 Didymellaceae strains from 92 countries, 121 plant families and 55 other substrates, including air, coral, human tissues, house dust, fungi, insects, soil, and water were examined via multi-locus phylogenetic analyses and detailed morphological comparisons, representing the broadest sampling of Didymellaceae to date. Among these, 97 isolates representing seven new genera, 40 new species and 21 new combinations were newly introduced in Didymellaceae. In addition, six epitypes and six neotypes were designated to stabilise the taxonomy and use of older names. A robust, multi-locus reference phylogenetic tree of Didymellaceae was generated. In addition, rpb2 was revealed as the most effective locus for the identification of Didymellaceae at species level, and is proposed as a secondary DNA marker for the family.

Original languageEnglish
Pages (from-to)309-396
Number of pages88
JournalStudies in Mycology
Volume96
DOIs
Publication statusPublished - Jun 2020

Keywords

  • Al. anatii L.W. Hou & O. Yarden
  • Allophoma alba L.W. Hou, Pfenning, L. Cai & Crous
  • Amphisphaeria vincetoxici De Not.
  • As. koolunga (J.A. Davidson et al.) L.W. Hou, L. Cai & Crous
  • Ascochyta astragalina (Rehm ex Sacc.) L.W. Hou, L. Cai & Crous
  • Ascochyta ferulae Pat.
  • Ascochyta nobilis Kabát & Bubák
  • Ascochyta pilosella L.W. Hou, L. Cai & Crous
  • Calophoma parvula L.W. Hou, L. Cai & Crous
  • Calophoma vincetoxici (De Not.) L.W. Hou, L. Cai & Crous
  • Chaetasbolisia argentina L.W. Hou, L. Cai & Crous
  • Chaetasbolisia eupatorii (Died.) L.W. Hou, L. Cai & Crous
  • Did. guttulata L.W. Hou, L. Cai & Crous
  • Did. indica L.W. Hou, L. Cai & Crous
  • Did. mitis L.W. Hou, L. Cai & Crous
  • Did. prolaticolla L.W. Hou, L. Cai & Crous
  • Did. prosopidis (Crous & A.R. Wood) L.W. Hou, L. Cai & Crous
  • Did. subglobispora L.W. Hou, L. Cai & Crous
  • Did. subrosea L.W. Hou, L. Cai & Crous
  • Did. variabilis L.W. Hou, L. Cai & Crous
  • Didymella aloeicola L.W. Hou, L. Cai & Crous
  • Didymella combreti (Crous) L.W. Hou, L. Cai & Crous
  • Dimorphoma L.W. Hou, L. Cai & Crous
  • Dimorphoma saxea (Aveskamp et al.) L.W. Hou, L. Cai & Crous
  • Ectodidymella L.W. Hou, L. Cai & Crous
  • Ectodidymella nigrificans (P. Karst.) L.W. Hou, L. Cai & Crous
  • Ectophoma insulana (Mont.) L.W. Hou, L. Cai & Crous
  • Ep. dickmanii L.W. Hou & O. Yarden
  • Ep. longiostiolatum L.W. Hou, L. Cai & Crous
  • Ep. multiceps L.W. Hou, L. Cai & Crous
  • Ep. oryzae Ito & Iwadare
  • Ep. polychromum L.W. Hou, L. Cai & Crous
  • Ep. purpurascens Ehrenb.
  • Ep. variabile L.W. Hou, L. Cai & Crous
  • Epicoccum brahmansense L.W. Hou, L. Cai & Crous
  • Epicoccum mezzettii Goid.
  • Epicoccum oryzae S. Ito & Iwadare
  • Epicoccum tobaicum (Szilv.) L.W. Hou, L. Cai & Crous
  • Heterophoma verbasci-densiflori L.W. Hou, L. Cai & Crous
  • Le. sisyrinchiicola L.W. Hou, L. Cai & Crous
  • Leptosphaerulina obtusispora L.W. Hou, L. Cai & Crous
  • Lo. vitalbae (Briard & Har.) L.W. Hou, L. Cai & Crous
  • Longididymella clematidis (Woudenb. et al.) L.W. Hou, L. Cai & Crous
  • Longididymella L.W. Hou, L. Cai & Crous
  • Ma. terrestris L.W. Hou, L. Cai & Crous
  • Macroascochyta grandis L.W. Hou, L. Cai & Crous
  • Macroascochyta L.W. Hou, L. Cai & Crous
  • Macroventuria angustispora L.W. Hou, L. Cai & Crous
  • Mi. taxicola L.W. Hou, L. Cai & Crous
  • Mi. viridis L.W. Hou, L. Cai & Crous
  • Microsphaeropsis fusca L.W. Hou, L. Cai & Crous
  • Multi-locus phylogeny
  • Neoa. humicola L.W. Hou, L. Cai & Crous
  • Neoa. longispora L.W. Hou, L. Cai & Crous
  • Neoa. mortariensis L.W. Hou, L. Cai & Crous
  • Neoascochyta fusiformis L.W. Hou, L. Cai & Crous
  • Neodidymelliopsis tiliae L.W. Hou, L. Cai & Crous
  • New taxa
  • No. eucalyptigena (Crous) L.W. Hou, L. Cai & Crous
  • No. prosopidis (Crous & A.R. Wood) L.W. Hou, L. Cai & Crous
  • Nothophoma acaciae (Crous) L.W. Hou, L. Cai & Crous
  • Nothophoma infuscata L.W. Hou, L. Cai & Crous
  • Nothophoma nullicana L.W. Hou, L. Cai & Crous
  • Paramicrosphaeropsis ellipsoidea L.W. Hou, L. Cai & Crous
  • Paramicrosphaeropsis L.W. Hou, L. Cai & Crous
  • Phoma
  • Phoma eupatorii Died
  • Phoma eupatorii Died.
  • Phoma laurina Thüm., Phoma nemophilae Neerg.
  • Phomatodes pilosa L.W. Hou, L. Cai & Crous
  • Phyllosticta acetosellae A.L. Sm. & Ramsb.
  • Phyllosticta arachidis-hypogaeae V.G. Rao
  • Phyllosticta insulana Mont
  • Phyllosticta verbascicola Ellis & Kellerm.
  • Pleosphaerulina briosiana Pollacci
  • Pseudopeyronellaea eucalypti (Crous & M.J. Wingf.) L.W. Hou, L. Cai & Crous
  • Pseudopeyronellaea L.W. Hou, L. Cai & Crous
  • R. humicola L.W. Hou, L. Cai & Crous
  • Remotididymella brunnea L.W. Hou, L. Cai & Crous
  • Remotididymella capsici (Bond.-Mont.) L.W. Hou, L. Cai & Crous
  • rpb2
  • Sclerotiophoma L.W. Hou, L. Cai & Crous
  • Sclerotiophoma versabilis (Boerema et al.) L.W. Hou, L. Cai & Crous
  • St. sambucella L.W. Hou, L. Cai & Crous
  • Stagonosporopsis cucumeris L.W. Hou, L. Cai & Crous
  • Stagonosporopsis nemophilae (Neerg). L.W. Hou, L. Cai & Crous
  • Taxonomy
  • Toruloidea tobaica Szilv
  • Va. laurina (Thüm.) L.W. Hou, L. Cai & Crous
  • Vacuiphoma ferulae (Pat.) L.W. Hou, L. Cai & Crous
  • Xenodidymella glycyrrhizicola L.W. Hou, L. Cai & Crous

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  • Cite this

    Hou, L. W., Groenewald, J. Z., Pfenning, L. H., Yarden, O., Crous, P. W., & Cai, L. (2020). The phoma-like dilemma. Studies in Mycology, 96, 309-396. https://doi.org/10.1016/j.simyco.2020.05.001