morphactins defined in 1951 yearmorphactins - morphactins;
morphactins - Group of synthetic plant growth-regulating compounds, derived from fluorenecarboxylic acid, that reduce and modify growth, especially new growth. Internally, orientation of spindle axes of dividing cells is altered. Most striking external effect is development of dwarf, bushy habit due to shortening of internodes and loss of apical dominance (See also: Auxin). Other effects include inhibition of phototropism and geotropism, seed germination, lateral root development.
near morphactins in Knolik
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