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Auxin promotes gibberellin biosynthesis in decapitated tobacco plants
Abstract. Excision of the apical bud (decapitation) of tobacco (Nicotiana tabacum L.) plants reduced the endogenous levels of indole-3-acetic acid (IAA), gibberellin A20 (GA20), and GA1 (theExpand
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Auxin from the Developing Inflorescence Is Required for the Biosynthesis of Active Gibberellins in Barley Stems1
Multiple gibberellins (GAs) were quantified in the stems of intact, decapitated, and decapitated auxin-treated barley (Hordeum vulgare) plants. Removal of the developing inflorescence reduced theExpand
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Auxin-Gibberellin Interactions and Their Role in Plant Growth
Recently it was discovered that auxin promotes gibberellin (GA) biosynthesis in decapitated stems of pea (Pisum sativum L.) and tobacco (Nicotiana tabacum L.), and here we review the evidence forExpand
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Gravistimulation leads to asymmetry of both auxin and gibberellin levels in barley pulvini.
The auxin indole-3-acetic acid (IAA) is known to promote the biosynthesis of active gibberellins (GAs) in barley (Hordeum vulgare). We therefore investigated the possibility that this interactionExpand
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Developmental regulation of the gibberellin pathway in pea shoots.
To investigate gibberellin (GA) biosynthesis in mature tissue of pea (Pisum sativum L.) in the absence of potentially GA-producing meristematic tissue we grafted wild-type scions to rootstocks of theExpand
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Auxin, gibberellins, and the gravitropic response of grass leaf sheath pulvini
The role of hormones in mediating tropic responses has been a central question in plant biology. Another key issue concerns how interactions between hormones regulate plant responses. In theExpand
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Inheritance of Two Chlorophyll Mutants in Eucalyptus globulus
Mutations in two independent genes causing chlorophyll deficiency (chl1 and chl2) were identified in two Eucalyptus globulus trees from remnant native forest. In each tree the proportion of albinoExpand
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