New species of Gondwanamyces from dying Euphorbia trees in South Africa

Johannes Alwyn van der Linde, Diana L. Six, Michael J. Wingfield, Jolanda Roux

Research output: Contribution to journalArticlepeer-review

Abstract

Gondwanamyces and its Custingophora anamorphs were first described from Protea infructescences in South Africa. Subsequently these unusual fungi were also found on Cecropia in Central America. During an investigation into the decline and death of native Euphorbia trees in South Africa, several fungal isolates resembling the anamorph state of Gondwanamyces were obtained from diseased tissues. In this study these isolates are identified based on morphology and comparisons of DNA sequences. Two previously unknown Gondwanamyces species were identified, both were associated with damage caused by beetles (Cossonus sp.). Inoculation studies showed that the new species of Gondwanamyces are pathogenic on Euphorbia ingens and may contribute to the decline of these trees.

Original languageEnglish
Pages (from-to)574-584
Number of pages11
JournalMycologia
Volume104
Issue number2
DOIs
StatePublished - Mar 2012

Keywords

  • Cossonus
  • Custingophora
  • Euphorbia ingens
  • Euphorbia tetragona
  • Insect-fungus interactions
  • Knoxdavesia
  • Tree diseases

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