Nicosulfuron, a sulfonylurea herbicide widely used for grass weed control in corn production, injures some sweet corn hybrids and inbreds. A specific cytochrome P450 (P450), CYP81A9, is suggested to be responsible for sensitivity to nicosulfuron and other P450‐metabolized herbicides. Corn CYP81A9 enzymes were expressed in E. coli and investigated to find the factor(s) associated with their function and variation in metabolizing nicosulfuron.

中文翻译：

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甜玉米CYP81A9s相对烟嘧磺隆敏感性的表达与比较。

烟嘧磺隆（Nicosulfuron）是一种磺酰脲类除草剂，广泛用于控制玉米生产中的草杂草，会伤害一些甜玉米杂交种和近交系。建议使用一种特定的细胞色素P450（P450）CYP81A9对烟嘧磺隆和其他经P450代谢的除草剂敏感。玉米中的CYP81A9酶在大肠杆菌中表达，并进行了研究以发现与其功能相关的因子和在代谢烟嘧磺隆中的变异。