Paraphoma garibaldii sp. nov. causing leaf spot disease of Campanula rapunculoides in Italy

V. Guarnaccia*, I. Martino, G. Tabone, P. W. Crous, M. L. Gullino

*Corresponding author for this work

Research output: Contribution to journal/periodicalArticleScientificpeer-review


Leaf and stem spots are among the most important diseases compromising ornamental plants worldwide. In this study, Paraphoma garibaldii sp. nov. is described from leaf lesions on Campanula rapunculoides in Piedmont, Northern Italy. The new species was characterised using a polyphasic approach including morphological characterisation and a multilocus molecular phylogenetic analysis based on partial nucleotide sequences of the translation elongation factor 1-α (tef1), the internal transcribed spacers (ITS) region and the β-tubulin (tub2) markers. Pathogenicity tests and the fulfilment of Koch’s postulates confirm P. garibaldii as a novel foliar pathogen of Campanula rapunculoides. Presently, the fungal infection due to Paraphoma garibaldii is known from a single location in Italy, and further surveys are required to determine its distribution and relative importance.

Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalFungal Systematics and Evolution
Publication statusPublished - 01 Jun 2022


  • leaf spot
  • morphology
  • multigene phylogeny
  • new taxon
  • pathogenicity


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