. The chemistry and mode of action of plant growth substances; proceedings of a symposium held at Wye College, University of London, July 1955. Plant regulators; Auxin; Growth (Plants). Natural auxins So far, we have studied the effect of lAA only. But, in extracts of plants there are other auxins, such as IAN or lAE. The effect of these substances on the growth of coleoptiles and internodes of Brighton oats under the conditions defined above (presoaking, buffer, 2 per cent sucrose, 0-5 ex. volumes, etc., plus 0-1 per cent Tween 80 to help dissolve substances which are poorly soluble in water)


. The chemistry and mode of action of plant growth substances; proceedings of a symposium held at Wye College, University of London, July 1955. Plant regulators; Auxin; Growth (Plants). Natural auxins So far, we have studied the effect of lAA only. But, in extracts of plants there are other auxins, such as IAN or lAE. The effect of these substances on the growth of coleoptiles and internodes of Brighton oats under the conditions defined above (presoaking, buffer, 2 per cent sucrose, 0-5 ex. volumes, etc., plus 0-1 per cent Tween 80 to help dissolve substances which are poorly soluble in water), can be seen in Figures 19 and 20. On the whole. i 5-0 ~ f-0 I ^ 3-0 8-0. 120 WO t 80 V 60 0 1 3000 Concentration of auxins (xSxIO V\) Figure 19. Growth curves of oat coleoptile sections {var. Brighton) in buffer'\-sucrose + Tween 80 (0-1 per cent) and various molar concentrations of IA A. IAN. and lAE. Pretreatment of sections and scales are as in Fimre 18. ^ 70- e-0 5-0 lAE h /lAN/ \ i^-O 3-0 2-0 1-0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wye College; Wain, R. L; Wightman, F. (Frank). London, Butterworths Scientific Publications


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Keywords: ., bookcentury1900, bookcollectionbiodiver, booksubjectgrowthplants