(Science: physiology) a white, crystalline substance, C8H7N, obtained from blue indigo, and almost all indigo derivatives, by a process of reduction. It is also formed from albuminous matter, together with skatol, by putrefaction, and by fusion with caustic potash, and is present in human excrement, as well as in the intestinal canal of some herbivora.
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... revolution plant" is not shows anything about auxin, some bacteria have phytohormones also, and auxin is a large of substances have the same indol cycle structure. I will ask my teacher about this problem. To mystery: I think you read a lot of plant book, so can you give me some good title ...
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