Plant Hormones — Key Discoveries

Key Discoveries

Darwin and Darwin's Experiments on Phototropism (1880)

1880

While not a 'judgment' in the legal sense, Charles Darwin and his son Francis's experiments on the phototropic response of grass coleoptiles laid the foundational intellectual…

Frits Went's Isolation of Auxin (1926)

1926

Frits Went's groundbreaking work definitively proved the existence of a chemical substance responsible for growth promotion in plants. Using oat coleoptiles, he demonstrated that…

Skoog and Miller's Discovery of Cytokinins (1950s)

1950s

Folke Skoog and Carlos Miller's work on tobacco pith tissue culture led to the discovery of cytokinins. They found that cell division in cultured plant tissues required not only…