Effects of fluridone and abscisic acid on lateral root initiation and root elongation of excised tomato roots cultured in vitro

摘要: Roots of tomato (Lycopersicon esculentum Mill. cv. Bonny Best) were excised and cultured in the presence abscisic acid synthesis inhibitor fluridone, with concentrations exogenous ranging from 10−10to 10−4M to determine effects its inhibition on development lateral roots vitro roots. Exogenous inhibited root initiation emergence at 10−6M greater. Fluridone (10−6M) enhanced formation even acid, all tested except 10−4M. Abscisic increased apical distance, fluridone reduced it up 10−5M acid. Both primary lengths. It was concluded endogenous is probably involved regulation dominance, that may affect differently than emergence.