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生长素是何时分离出来的?1教材如何叙述张建尚[江苏省赣榆高级中学(222100)]生长素是在哪一年分离出来的?人教版、苏教版和中图版高中生物新教材中的说法不一。人教版:“1934年,科学家首先从人尿中分离出具有生长素效应的化学物质——吲哚乙酸(IAA)。但是,由于生长素在植物
When did auxin separate? 1 How did the textbook describe Zhang Jianshang [Jiangsu Provincial High School (222100)] Where did auxin come from? The People’s Education Press, the Jiangsu Education Press, and the Chinese version of the High School New Biology Textbook The arguments are different. PEP: ”In 1934, scientists first isolated the auxin-inducing chemical, indole acetic acid (IAA), from human urine. However, due to auxin in plants,