S. Kosemura et al., LIGHT-INDUCED AUXIN-INHIBITING SUBSTANCE FROM CABBAGE (BRASSICA-OLEACEAE L) SHOOTS, Tetrahedron letters, 38(48), 1997, pp. 8327-8330
A light-induced auxin-inhibitory substance, indolylacetonitrile (IAN),
was isolated from light-grown cabbage (Brassica olearea L.) shoots. T
he IAN content in cabbage shoots increased in response to light. Cabba
ge hypocotyl elongation is inhibited by 10(-5)M of IAN in 90 min but p
romoted after 48 hr. Light-induced growth inhibition is caused by the
degradation of 3-indolylmethylglucosnolathe (IMG) to IAN which is, in
turn, converted to the growth hormone indole-3-acetic acid (IAA). (C)
1997 Elsevier Science Ltd.