Triiodobenzoic acid, auxin

There is little published information of interest to carbohydrate chemists concerning the benzoic acid herbicides. The predominant member, 2,3,6-trichlorobenzoic acid, inhibited uptake and utilization109 of acetate-14C. It shows some auxin-like properties, whereas 2,3,5-triiodobenzoic acid appears to block the transport of natural and synthetic auxins, and has often been termed an antiauxin. The triiodo compound inhibited oxygen (86% at... [Pg.407]

Nardi et al. (1994), by using two inhibitors of auxin (TIBA = 2,3,5-triiodobenzoic acid and PCIB = 4-chlorophenoxy-isobutyric acid), demonstrated in Nicotiana plumbaginifolia that the LMS component of humic matter is the fraction endowed with auxin-like activity, although the pathways followed by IAA and the LMS fraction in inducing their effects may be somewhat different. Humic matter, IAA, and IAA inhibitors stimulated peroxidase activity in tobacco. When the Nicotiana tissues were treated with the humic fraction and IAA, there was a minor polymorphism in the esterase isoenzymes. The presence of both TIBA or PCIB together with LMS or IAA restored the esterase profile obtained from control tissues. [Pg.326]

Auxins Synthetic Auxins Triiodobenzoic acid Hydroxyfluorene carboxylates... [Pg.98]

Barry AJ (1971) The effect of 2,3,5-triiodobenzoic acid on the transport and metabolism of indoleacetic acid in intact pea seedlings. B Sc Diss, Univ Southampton Basler E (1974) Abscisic acid and gibberellic acid as factors in the translocation of auxin. Plant Cell Physiol 15 351-361... [Pg.127]

Christie AE, Leopold AC (1965 a) On the manner of triiodobenzoic acid inhibition of auxin transport. Plant Cell Physiol 6 337-345 Christie AE, Leopold AC (1965 b) Entry and exit of indoleacetic acid in corn coleoptiles. Plant Cell Physiol 6 453-465... [Pg.129]

Konings H (1968) Auxin in root geotropism. In Vardar Y (ed) The transport of plant hormones. North-Holland, Amsterdam, pp 237-250 Konings H (1969) The influence of acropetally transported indoleacetic acid on the geotropism of intact pea roots and its modification by 2,3,5-triiodobenzoic acid. Acta Bot Neerl 18 528-537... [Pg.138]

Morris DA, Briant RE, Thomson PG (1969) The transport and metabolism of relabelled indoleacetic acid in intact pea seedlings. Planta 89 178-197 Morris DA, Kadir GO, Barry AJ (1973) Auxin transport in intact pea seedlings Pisum sativum L.) The inhibition of transport by 2,3,5-triiodobenzoic acid. Planta 110 173-182... [Pg.140]

Thomson KSt, Hertel R, Muller S, Tavares JE (1973) 1-N-naphthylphthalamic acid and 2,3,5-triiodobenzoic acid In vitro binding to particulate cell fractions and action on auxin transport in corn coleoptiles. Planta 109 337-352 Thornton RM, Thimann KV (1967) Transient effects of light on auxin transport in the Avena coleoptile. Plant Physiol 42 247-257 Tsurumi S, Ohwaki Y (1978) Transport of " C-labeled indoleacetic acid in Vicia root segments. Plant Cell Physiol 19 1195-1206... [Pg.145]

Winter A (1967) The promotion of the immobilization of auxin in Avena coleoptiles by triiodobenzoic acid. Physiol Plant 20 330-336 Winter A (1968) 2,3,5-Triiodobenzoic acid and the transport of 3-indoleacetic acid. In Wightman F, Setterfield G (eds) Biochemistry and physiology of plant growth substances. Runge, Ottawa, pp 1063-1076... [Pg.147]

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