alkaloids

Ragwort contains a battery of toxic and resilient alkaloids: even honey made from its flowers contains the poison in dilute form.

狗舌草含有大量有毒且适应力强的生物碱：即使是用它的花制成的蜂蜜也含有稀释后的毒素。

Strychnine is used to kill rodents and pyrrolizidine alkaloids have significant activity against microbes.

士的宁用于杀灭啮齿动物，而吡咯里西啶类生物碱则具有较强的杀菌活性。

Lysine is a precursor of certain alkaloids.

赖氨酸是某些生物碱的前体。

Studies on the alkaloids from Salsola collina Pall.

猪毛菜中生物碱化学成分的研究。

Of course, alkaloids can serve as plant hormone as well.

当然，生物碱也可能作为植物的激素。