Plenodomus biglobosus

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cotyledons of oilseed rape infected with: left: Plenodomus lingam and right: Plenodomus biglobosus (click on image to enlarge it)
Authors: Jonathan Grandaubert et al.
Source: BMC Genomics (2014), vol. 15, art. 891

Plenodomus biglobosa (Shoemaker & H. Brun) Gruyter, Aveskamp & Verkley 2013

The fungus is wide-spread and closely related to Plenodomus lingam but less aggressive and was previously classified as group B of that species. It infects rape (canola) and can cause large lesions on canola cotyledons (see image at right). It also infects other Brassica species and other Brassicaceae. It spreads by air-borne ascospores. P. lingam and P. biglobosa occupy slightly different ecological niches.

Synonym:
Leptosphaeria biglobosa