How was auxin discovered?
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Auxins were the first plant hormones discovered. Charles Darwin was among the first scientists to dabble in plant hormone research. In his book "The Power of Movement in Plants" presented in 1880, he first describes the effects of light on movement of canary grass (Phalaris canariensis) coleoptiles.
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F. W Went first isolated the Auxins in 1928 from the tips of the coleooptiles of oat seedlings. Although Darwin was the first to observed that coleoptiles of canary grass responded unilateral illumination by growing towards light source (Phototropism).
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