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Gibberellic acid auxin

The most promising leads have come from studying the hormonal requirements of the system. By themselves, we can find no indication whatsoever of any growth promotion by any of the alkyl lipides. When gibberellic acid is also applied, response remains small. If indoleacetic acid, or another auxin, is added, the sections show the classic bioassay response—and this is further stimulated by the active lipides. In the presence of both auxin and gibberellic acid, however, the sections show their greatest capacity to elongate still further in the presence of the alkyl lipides (I). Remarkably, the lipides are most effective at concentrations corn-... [Pg.143]

In order to improve yields and productivities of secondary metabolites in plant cell culture s it is essential the selection of the most elEcient plant growth regulators (auxins, cytokinins, gibberellic acid and abscicic acid) and the relationship between diem [74, 75]. [Pg.140]

Secondary metabolites, produced by pathways derived from primary metabolic routes, are numerous and widespread, especially in higher plants. More than 20,000 were known in 1985 (Hartmann, 1985), and at least 1000 additional compounds, are described each year. In practice, the difference between the primary and secondary metabolites is fuzzy. Plant hormones such as gibberellic acid, indoleace-tic acid (auxin), ethylene, kinetin, and abscisic acid, as well as compounds involved in plant cell wall structure such as cinnamic acid and its polymeric derivative, lignin, are intermediate between primary and secondary metabolism (Birch, 1973). In some instances, compounds normally considered primary metabolites may accumulate in large amounts and behave in a manner usually associated with secondary metabolites. Entities such as shikimic acid and squalene, which initially were considered secondary metabolites, were subsequently shown to be important intermediates in the formation of primary metabolites (phenylalanine, tyrosine and tryptophan, and steroids, respectively). [Pg.3]

Recently, the isolation of gibberellin and kinin provided further proof for the coumarin-auxin relation. These substances are included among the plant hormones, although gibberellic acid, a representative of gibberellins, was first isolated as a fungal metabolite, and kinetin, the best known kinin derivative was produced from nucleic acids [119-121]. Both of these compounds, however, were also found in higher plants. [Pg.96]

Andreae WA, Venis MA, Jursic E, Dumas T (1968) Does ethylene mediate root growth inhibition by indole-3-acetic acid Plant Physiol 43 1375-1379 Anker L (1973) The auxin production of the physiological tip of the Avena coleoptile and the repression of tip regeneration by indoleacetic acid (not by naphthylacetic acid and 2,4-dichlorophenoxyacetic acid). Acta Bot Neerl 22 221-227 Anker L (1975) Auxin-synthesis inhibition by abscisic acid, and its reversal by gibberellic acid. Acta Bot Neerl 24 339-347... [Pg.62]

Barea JM, Navarro E, Palomares A, Montoya E (1974) A rapid microbiological assay method for auxins, gibberellic acid and kinetin using yeast. J Appl Bacteriol 37 171-174... [Pg.63]

Conrad H, Saltman P, Eppley R (1959) Effects of auxin and gibberellic acid on growth... [Pg.65]

II. Long term effects of colchicine and lAA. New Phytol 65 532-546 Malik CP, Mehan M (1975 a) Correlative effects of auxin, gibberellic acid and kinetin on the elongation of pollen tubes in Calotropis procera. Biochem Physiol Pflanz 167 295-300... [Pg.72]

Mondal MH (1975) Effects of gibberellic acid, calcium, kinetin, and ethylene on growth and cell wall composition of pea epicotyls. Plant Physiol 56 622-625 Morgan PW, Gausman HW (1966) Effects of ethylene on auxin transport. Plant Physiol 41 45-52... [Pg.73]

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]

Basler E, McBride R (1977) Interaction of coumarin, gibberellic acid and abscisic acid in the translocation of auxin in bean seedlings. Plant Cell Physiol 18 939-947 Batra MW, Edwards KL, Scott TK (1975) Auxin transport in roots Its characteristics and relationship to growth. In Torrey JG, Clarkson DT (eds) The development and function of roots. Academic Press, London New York, pp 299-325 Batt S, Venis MA (1976) Separation and localization of two classes of auxin-binding sites in corn coleoptile membranes. Planta 130 15-21 Batt S, Wilkins MB, Venis MA (1976) Auxin binding to corn coleoptile membranes kinetics and specificity. Planta 130 7-13... [Pg.127]

Bowen MR, Hoad GV (1968) Inhibitor content of phloem and xylem sap obtained from willow Salix viminalis) entering dormancy. Planta 81 64-70 Bowen MR, Wareing PF (1969) The interchange of " C-kinetin and " C-gibberellic acid between the bark and xylem of willow. Planta 89 108-125 Bowen MR, Wilkins MB, Cane AR, McCorquodale I (1972) Auxin transport in roots. VIII. The distribution of radioactivity in the tissues of Zea root segments. Planta 105 273-292... [Pg.128]

Cleland RE (1975) Auxin-induced hydrogen ion excretion correlation with growth, and control by external pH and water stress. Planta 127 233-242 Cleland RE (1976) Kinetics of hormone-induced H excretion. Plant Physiol 58 210-213 Cleland RE, Prins H, Harper R, Higinbotham N (1977) Rapid hormone-induced hyperpolarization of the oat coleoptile transmembrane potential. Plant Physiol 59 395-397 Clor MA (1967) Translocation of tritium-labelled gibberellic acid in pea stem segments and potato tuber cylinders. Nature 214 1263-1264 Cohen D, Robinson JB, Paleg LG (1966) Decapitated peas and diffusible gibberellins. Aust J Biol Sci 19 535-543... [Pg.130]

Davenport TL, Morgan PW, Jordan WR (1977 b) Auxin transport as related to leaf abscission during water stress in cotton. Plant Physiol 59 554-557 Davenport TL, Jordan WR, Morgan PW (1979) Movement of kinetin and gibberellic acid in leaf petioles during water stress-induced abscission in cotton. Plant Physiol 63 152-155... [Pg.130]

Sorokin HP, Mathur SN, Thimann KV (1962) The effects of auxins and kinetin on xylem differentiation in the pea epicotyl. Am J Bot 49 444-453 Stant MY (1961) The effect of gibberellic acid on fibre-cell length. Ann Bot 25 453-462 Stant MY (1963) The effect of gibberellic acid on cell width and the cell wall of some phloem fibers. Ann Bot 27 185-196... [Pg.170]

See other pages where Gibberellic acid auxin is mentioned: [Pg.436]    [Pg.436]    [Pg.103]    [Pg.1151]    [Pg.424]    [Pg.792]    [Pg.59]    [Pg.144]    [Pg.225]    [Pg.245]    [Pg.281]    [Pg.276]    [Pg.293]    [Pg.256]    [Pg.23]    [Pg.3]    [Pg.124]    [Pg.238]    [Pg.376]    [Pg.467]    [Pg.935]    [Pg.217]    [Pg.531]    [Pg.17]    [Pg.112]    [Pg.230]    [Pg.21]    [Pg.63]    [Pg.64]    [Pg.69]    [Pg.69]    [Pg.75]    [Pg.76]    [Pg.86]    [Pg.154]    [Pg.180]    [Pg.183]   
See also in sourсe #XX -- [ Pg.226 ]



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