Journal
JOURNAL OF FUNGI
Volume 7, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/jof7110898
Keywords
Botrytis blight; Cladosporium blight; fungal ecology; raceme blight; taxonomy; tree nut
Categories
Funding
- University of Queensland Research Training Scholarship
- Hort Innovation
- Australian Government [MC16018]
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Macadamia flowers exhibit grey and green mold symptoms, predominantly associated with species of Botrytis and Cladosporium fungi. Molecular phylogenetic analyses revealed one novel species of Botrytis and three novel species of Cladosporium among the unidentified isolates.
Macadamia (Macadamia integrifolia) is endemic to eastern Australia and produces an edible nut that is widely cultivated in commercial orchards globally. A survey of fungi associated with the grey and green mold symptoms of macadamia flowers found mostly species of Botrytis (Sclerotiniaceae, Leotiomycetes) and Cladosporium (Cladosporiaceae, Dothideomycetes). These isolates included B. cinerea, C. cladosporioides, and unidentified isolates. Amongst the unidentified isolates, one novel species of Botrytis and three novel species of Cladosporium were delimited and characterized by molecular phylogenetic analyses. The new species are Botrytis macadamiae, Cladosporium devikae, C. macadamiae, and C. proteacearum.
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