VERTICAL AND RADIAL MOVEMENT OF AUXIN IN YOUNG SYCAMORE PLANTS
نویسندگان
چکیده
منابع مشابه
Auxin requirements of sycamore cells in suspension culture.
Sycamore (Acer pseudoplatanus L.) cell suspension cultures (strain OS) require 2,4-dichlorophenoxyacetic acid (2,4-D) in their culture medium for normal growth. If the 2,4-D is omitted, rates of cell division are dramatically reduced and cell lysis may occur. Despite this ;auxin requirement,' it has been shown by gas chromatography-mass spectrometry that the cells synthesize indol-3yl-acetic ac...
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Lateral movement of indoleacetic acid-1-(14)C in corn coleoptiles was measured as radioactivity moving laterally following unilateral application of the auxin. The data suggest that there is an endogenous lateral movement of auxin, and that phototropic stimulation of the coleoptile depresses lateral movement towards the light and enhances lateral movement away from the light. The lateral moveme...
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A 1-hour application of indole-3-acetic acid to bean (Phaseolus vulgaris L. cv. Red Kidney) explants inhibited abscission for an 8-hour aging period. Use of indole-3-acetic acid-(14)C showed that the applied indole-3-acetic acid was conjugated within explant tissue and that this conjugation mechanism accounts for loss of effectiveness of indole-3-acetic acid in inhibiting abscission after 8 hou...
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The plant hormone auxin, which is predominantly represented by indole-3-acetic acid (IAA), is involved in the regulation of plant growth and development. Although IAA was the first plant hormone identified, the biosynthetic pathway at the genetic level has remained unclear. Two major pathways for IAA biosynthesis have been proposed: the tryptophan (Trp)-independent and Trp-dependent pathways. I...
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The existence of auxin as a mobile growth regulator was famously inferred by Charles and Frances Darwin, as described in their 1880 book, The Power of Movement in Plants (Darwin and Darwin, 1880). However, auxin was not isolated until much later by Went (1926). Its first ever mention in Plant Physiologywas in Went’s obituary, written by George Peirce, which credits Went with having “introduced ...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1974
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1974.tb04606.x