Phomopsis saccharata sp. nov., causing a canker and die-back disease of Protea repens in South Africa

Mostert L. ; Kang J.-C. ; Crous P.W. ; Denman S. (2001)


Phomopsis saccharata is newly described from cankers of Protea repens plants collected on the Jonkershoek Mountains in Stellenbosch, South Africa. The pathogenicity of this species was established in a previous study, but the fungus has never been formally described. Morphologically this species is easily distinguished from others in the genus based on its large, chiefly 1-septate alpha conidia. Although this is an unusual feature for Phomopsis, ITS DNA sequence data indicate that this taxon is best accommodated in Phomopsis. This finding also suggests that the generic concept of Phomopsis should be expanded to include taxa with 1-septate alpha conidia.

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