Sequence conservation in the mitochondrial cytochrome b gene and lack of G143A Qol resistance allele in a global sample of Rhynchosporium secalis
Barley scald caused by Rhynchosporium secalis is often controlled by fungicides, most recently by those in the strobilurin-based (QoI) class. Since the launch of QoIs in 1996 a range of important plant pathogens, including Blumeria graminis, Mycosphaerella fijiensis and Plasmopara viticola, developed resistance. Present monitoring data indicate that R. secalis populations remain sensitive. The primary molecular mechanism of QoI resistance in several fungi is a point mutation at codon 143 in the...[Show more]
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|Source:||Australasian Plant Pathology|
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