Search Results - "Firn, R.D."

Gravitropic sign reversal--a fundamental feature of the gravitropic perception or response mechanisms in some plant organs by Myers, A.B, Firn, R.D, Digby, J

“…The direction of the gravitational response of some plant organs reverses during development. For instance, the apical hook of an etiolated hypocotyl is formed…”
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Plant movements caused by differential growth--unity or diversity of mechanisms? by Firn, R D, Myers, A B

“…A very wide range of plant organ movements have been described and yet it is not clear how each of them is related to the others. This uncertainty has had two…”
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Do we need a new hypothesis to explain plant VOC emissions? by Firn, Richard D., Jones, Clive G.

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Light modulation of the gravitropic set‐point angle (GSA) by Digby, J., Firn, R.D.

“…A study has been made of the means by which light influences the gravitropic set‐point angle (GSA) of the nodes of Tradescantia and the hypocotyls of the…”
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role of the apex in the phototropic curvature of Avena coleoptiles: positive curvature under conditions of continuous illumination by Franssen, J.M, Firn, R.D, Digby, J

“…The differential growth causing second positive phototropic curvature in intact, black-capped and decapitated Avena coleoptiles has been measured. In all cases…”
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Solving the puzzle of gravitropism--has a lost piece been found? by Firn, R.D, Digby, J

“…Attempts to devise models to account for the gravitropic behaviour of plant organs have been limited conceptually by the predominance of studies on the…”
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effect of displacment angle on the gravitropic and autotropic growth responses of sunflower hypocotyls by Myers, A.B, Glyn, G.H, Digby, J, Firn, R.D

“…Sunflower hypocotyls were gravistimulated at angles of 22.5 degrees, 45 degrees, 90 degrees, 135 degrees and 157.5 degrees from the vertical and the…”
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How is a phototropic stimulus perceived by hypocotyls? by Gleed, D., Firn, R.D., Digby, J.

“…Phototropically stimulating two flanks of a mustard seedling results in curvature which can be explained by the resultant of the resolved vectors of the…”
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The Effect of Displacement Angle on the Gravitropic and Autotropic Growth Responses of Sunflower Hypocotyls by Myers, A.B., Glyn, G.H., Digby, J., Firn, R.D.

“…Sunflower hypocotyls were gravistimulated at angles of 22·5°, 45° 90° 135° and 157·5° from the vertical and the gravitropically-induced growth rate changes of…”
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role of the coleoptile apex in controlling organ elongation. II. Effects of auxin substitution and auxin transport inhibitors on decapitated coleoptiles by Parsons, A, Firn, R.D, Digby, J

“…The most widely quoted evidence that auxin controls coleoptile elongation is that auxin applied to the cut surface of a coleoptile can obviatethe effects of…”
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basipetal auxin transport system and the control of cell elongation in hypocotyls by Tamimi, S, Firn, R.D

“…The ‘classical’ basipetal transport of auxin in sunflower and marrow hypocotyls can be inhibited by the application of auxin transport inhibitors. However,…”
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Evidence inconsistent with the Blaauw model of phototropism by Macleod, K, Digby, J, Firn, R.D

“…The Blaauw model of phototropism equates the inhibition of growth at the illuminated side of a unilaterally illuminated organ with the blue light inhibition of…”
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phototropic responses of Avena coleoptiles by Macleod, K, Firn, R.D, Digby, J

“…Macleod, K., Firn, R. D. and Digby, J. 1986. The phototropic responses of Avena coleoptiles.—J. exp. Bot. 37: 542–548. A number of studies of the elongation…”
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Solute production and net wall synthesis in the growing and nongrowing cells of gravistimulated sunflower hypocotyls by Carrington, C.M.S. (York Univ., Heslington (UK). Dept. of Biology), Firn, R.D

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Solute production and net wall synthesis in the growing and non-growing cells of gravistimulated sunflower hypocotyls by Carrington, C.M.S, Firn, R.D

“…Solute generation and cell wall synthesis were examined in sunflower hypocotyl peripheral layers, the growth rate of which had been altered by…”
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Some effects of applied gibberellic acid on the synthesis and degradation of lipids in isolated barley aleurone layers by Firn, R.D, Kende, H

“…An analysis of the lipids in isolated barley (Hordeum vulgare L.) aleurone layers after 12 hours incubation in the presence or absence of gibberellic acid…”
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Induction of plant growth inhibitor xanthoxin in seedlings by red light by Burden, R.S, Firn, R.D, Hiron, R.W.P, Taylor, H.F, Wright, S.T.C

“…ONE explanation of the retardation of growth1 when etiolated plants are exposed to light is that light induces the formation of a growth inhibitor2, and…”
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