The production of phytoalexin by seeds of wheat in response to Gibberella Zeae (Schw. ) Fetch was isolated and purified.Analysis of bioactivity and chemical structure were performed.

• 本文报道了小麦在小麦赤霉菌的诱发下产生抗毒素,经过分离提取和化学结构鉴定,得知有抑制小麦赤霉菌的抗毒素的化学成分为丁二醇。