Plant Growth Substances 1970

Section 1 Cell Extension: Models, Membranes and Wall Properties.- Macromolecule synthesis and wall extensibility in relation to the mechanism of auxin-induced cell elongation.- On the biophysical control of growth rate in Avena coleoptiles sections.- Auxin-induced changes in cell wall properties and growth of Avena coleoptiles and green pea epicotyls.- Measurements of water potential and hormone transport associated with the growth of cucumber hypocotyls.- Promotion of plant and insect hormone action by membrane matrixmatching lipids.- Gibberellin and membrane permeability.- Section 2 Rapid Action of Auxins.- Rapid growth responses in the Avena coleoptile: a comparison of the action of hydrogen ions, CO2 and auxin.- Cell elongation and auxin action in lupin hypocotyls.- Initial kinetics of auxin-induced cell elongation in coleoptiles.- Kinetic studies on the auxin effect and the influence of cycloheximide and blue light.- Effects of IAA and cyanide on the growth and respiration of coleoptile Sections from Triticum.- Section 3 Biosynthesis of Auxins.- Pathways of auxin biosynthesis in the shoots of higher plants.- Enzymic oxidation of indole-3-ethanol.- The control of growth by the synthesis of IAA and its conjugation.- Metabolism of indole-3-acetaldehyde. IV. Electron acceptor studies and physiological significance of the aldehyde oxidase of Avena Coleoptiles.- Electrophoretic isolation and growth activity of indole-3-acetic acid oxidation products.- Conversion of 3-indole acetaldoxime to glucobrassicin and sulphoglucobrassicin by woad (Isatis tinctoria L.).- Isolation and characterization of indole derivatives in clubroots of Chinese cabbage.- Section 4 Biosynthesis of gibberellins.- Gibberellin biosynthesis and its regulation.- Recent advances in the metabolism of gibberellins.- The biosynthesis of gibberellin precursors in a cell-free system from Cucurbita Pepo.- A polar gibberellin from apricot seed.- Dwarfing genes in rice and their relation to gibberellin biosynthesis.- Gibberellins in immature seed of moonflower (Caionyction acuieatum).- Section 5 Hormones and Nucleic Acids.- Cytokinin-induced changes in transfer RNA species.- Effect of growth substances on rapidly synthesized RNA in sterile tobacco tissue.- Auxin in sRNA fraction of mung bean hypocotyl.- ABA- and kinetin-induced changes in cell homogenates, chromatinbound RNA polymerase and RNA composition.- The temporal separation of transcription and translation and its control in cotton embryogenesis and germination.- DNA synthesis and hormonal growth response in non-meristematic tissues.- Section 6 Hormones and Isoenzymes.- Auxin, macromolecular repressors and the development of isoperoxidases in cultured tobacco pith.- Isozymes of cellulase in the abscission zone of Phaseolus vulgaris.- Section 7 Binding of Hormones to cell Constituents.- Auxin-reactive proteins.- On the significance of cytokinin binding to plant ribosomes.- Binding of indoleacetic acid to isolated pea nuclei.- Modification of enzyme activity, conformation and size by indoleacetic acid.- Section 8 Inhibitors.- Biochemical aspects of the action of abscisic acid.- The biosynthesis and degradation of abscisic acid.- The accumulation of abscisic acid in plants during wilting and under other stress conditions.- Chemistry and biological action of podolactones and other inhibitors of plant growth.- Occurrence of substances in dwarf peas interfering with responses of the same plants to gibberellins.- Plant growth inhibitors in the bulbs of Lycoris radiata Herb.- Morphactin-like activity of benzilate esters in Arabidopsis thaliana.- Chemistry and physiology of rooting inhibitors in adult tissue of Eucalyptus grandis.- Studies with plant growth inhibitors.- Section 9 Gibberellins: The Cereal Aleurone Layer.- Control of ?-amylase synthesis in isolated barley aleurone layers by gibberellic acid, abscisic acid and ethylene.- Cytochemical localization of gibberellic acid-induced enzymes in the barley aleurone layer.- Effect of gibberellin A3 on in vivo and in vitro induction of ?-amylase isozymes.- Effect of gibberellic acid on ribonucleic acid synthesis in barley aleurone.- Effect of gibberellic acid on the tRNA methylase activity of barley aleurone cells.- Stages during the induction of ?-amylase in barley aleurone layers. I. The timing of sensitivity to Actinomycin D.- Stages during the induction of ?-amylase in barley aleurone layers. II. Some properties of the pre- and post-transcription stages.- The effect of gibberellic acid on the metabolism of soluble nucleotides in aleurone tissue isolated from wheat grain.- The isolated aleurone layer.- Section 10 Gibberellins: Other Systems.- Metabolic changes in internodes of dwarf pea plants treated with gibberellic acid.- Gibberellin metabolism in the roots of Phaseolus coccineus Seedlings.- Stimulation of the levels of gibberellin-like substances by the growth retardants CCC and AMO 1618.- DNA analysis of auxin-treated Jerusalem artichoke tuber tissue as a screen for the evaluation of substances influencing cell division.- Promotion by CCC of growth in Jerusalem artichoke tissue.- Gibberellin, a primary determinant in the expression of apical dominance, apical control and geotropic movement of conifer Shoots.- Section 11 Cytokinins.- Active forms of the cytokinins.- Use of structural analogues in the study of cytokinin action.- Uptake of cytokinins by Acer pseudopiatanus cells: enzymes of the deaminase type as possible regulators of the cytokinin level inside the cell.- Cytokinins in bleeding sap of the grape vine.- Medium and tissue sugar concentrations during cytokinin-controlled growth of tobacco callus tissues.- Section 12 Ethylene.- Studies on the action of ethylene in physiological processes of plant cells.- Functions of naturally-produced ethylene in abscission, dehiscence and Seed germination.- Biosynthesis of ethylene in fruit tissues.- The measurement of ethylene from plant tissues and its relation to auxin effect.- Auxin and ethylene in adventitious root formation in Phaseoius aureus (Roxb.).- Ethylene and the growth of plant cells: role of peroxidase and hydroxyproline-rich proteins.- Trauma-induced ethylene production by citrus flowers, fruit and wood.- Thoughts on the role of ethylene in plant growth and development.- Section 13 Hormones in Relation to Senescence.- On the nature of senescence in oat leaves.- Hormonal regulation of leaf senescence in intact plants.- Further studies on hormone-regulated senescence in Rumex leaf tissue.- Kinetin treatment and protein synthesis in detached wheat leaves.- Effects of senescence and hormone treatment on the ?-1, 3-glucan hydrolase in Nicotiana glutinosa leaves.- Ethylene production and biochemical changes in detached leaves of Nymphoides indica.- Increase in ABA-like growth inhibitors and decrease in gibberellinlike substances during ripening and senescence in citrus fruits.- Effects of ABA and kinetin on ultrastructure of senescing wheat leaves.- Section 14 Growth and Morphogenesis.- The role of basal and apical factors in the co-ordination of growth in the stems of white clover (Trifolium repens L.).- Studies in leaf unrolling in barley.- The effects of growth regulators on RNA metabolism during the unrolling of barley leaf segments.- Auxin-induced growth of tuber tissue of Jerusalem artichoke. VII. Effect of cyclic 3’, 5’-adenosine monophosphate on the auxininduced cell expansion growth.- Evidence for the presence of biological activity of a chorionic gonadotropin-like plant growth substance (phytotropin).- Partial and complete growth promoting systems for cultured carrot expiants: synergistic and inhibitory interactions.- Multiple interactions between media, growth factors, and the environment of carrot cultures: effects on growth and morphogenesis.- Control of morphogenesis in plant tissue cultures by hormones and nitrogen compounds.- Section 15 Transport and Tropisms.- Experiments on the mechanism of hormone-directed transport.- The movement of plant hormones: auxins, gibberellins and cytokines.- Tropic stimuli and the kinetics of basipolar-transport of auxin.- The source and transport of growth regulators responsible for the geotropic response Of Zea mays roots.- Asymmetric “acid”growth” response following gravistimulus.- The role of auxin in thigmotropism.- Participation of the Golgi apparatus in geotropism.- Section 16 Hormones and Flowering.- Hormonal regulation of plant flowering in different photoperiodic groups.- The use of aphids in the search for the hormonal factors controlling flowering.- Hormonal control of flowering in Citrus and some other woody perennials.- Some growth substances associated with bud failure of peach.- The flowering process — a new theory.- The promotion of ripening in cereal crops by peduncle injection of aqueous solutions of nucleotides.- Section 17 Application of Glows to Hormone Studies.- A system for the characterisation of plant growth substances based upon the direct coupling of a gas chromatogram, a mass spectrometer and a small computer - recent examples of its application.- Identification of cytokinins by gas-liquid chromatography and gas liquid chromatography-mass spectrometry.- Index to Authors.- Index to Organisms.- Index to Subjects.