Pink seed of barley caused by Erwinia persicina

Pink coloration of barley seeds has caused quality loss since 2015 in some areas where barley is grown in Japan. A bacterium, isolated frequently from the affected seeds and identified as Erwinia persicina , was demonstrated to induce the coloration. Barley was judged to be a new host for E. persicina , and this new disease was named pink seed of barley.