Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of the Zymoseptoria tritici teleomorph stage causing septoria leaf blotch of wheat in Algeria.

Abstract

Septoria leaf blotch caused by Zymoseptoria tritici (syn. Mycosphaerella graminicola) is considered to be one of the major diseases affecting both durum and bread wheat in Algeria. Algerian Z. tritici populations undergo frequent sexual reproduction mirrored by co-occurrence of both mating types. Pseudothecia have been obtained under controlled conditions, however the natural occurrence of the teleomorph stage has never been reported in the country. In November 2015, wheat stubble from naturally infected wheat fields in two different growing regions in Algeria (Algiers and Constantine) was sampled and examined for the presence of pseudothecia. Morphological observations and pathogenicity test revealed the presence of the teleomorph stage of Z. tritici. This is thought to be the first report of the Z. tritici teleomorph causing septoria leaf blotch on wheat in Algeria.