Explain phythormones? Auxins (Discovery and physiological role)
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Physiological effects of AuxinThe primary physiological effect of auxin in plants is to stimulate the elongation of cells in shoot. ...
The higher concentration of auxin on the shaded side causes the cells on that side to elongate more rapidly resulting in bending of the stem tip towards the unilateral light.
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Phytohormones or plant hormones, are naturally occurring small organic molecules or substances which influence physiological processes in plants at very low concentrations (Davies, 2004). In other words, phytohormones are chemical messengers that coordinate cellular activities of plants (Fleet and Williams, 2011).
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