First Report of Root Rot Caused by Plectosphaerella cucumerina on Cabbage in China

摘要

Severe root rot was observed in fields of cabbages ( Brassica oleracea L.) in 2015 in China. Cardinal symptoms of this disease included root rot and wilting leaves. A fungus was isolated from diseased tissues consistently. Based on the morphological features and molecular analysis of the ITS-5.8S rDNA and D1/D2 domain of the 28S rRNA gene, it was identified as Plectosphaerella cucumerina . This is the first report of P. cucumerina causing cabbage root rot in China and the world.