Sources of Free IAA in the Mesocotyl of Etiolated Maize Seedlings
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منابع مشابه
Sources of Free IAA in the Mesocotyl of Etiolated Maize Seedlings.
Sources of free indole-3-acetic acid (IAA) for the mesocotyl of intact etiolized maize ((Zea mays L.) seedlings are evaluated. The coleoptile unit, which includes the primary leaves and the coleoptilar node, is the main source of free IAA for the mesocotyl. The seed and the roots are not immediate sources of IAA supply. Dependence of the apical growing region of the mesocotyl on the coleoptile ...
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The elongation of etiolated Avena mesocotyls is inhibited by red light (660 mmu). Immediately after exposing mesocotyl sections to varying doses of red light the ensuing concentrations of phytochrome in the far-red absorbing form (P(730)) were measured. The extent of mesocotyl inhibition observed 5 days later is proportional to the logarithm of P(730) concentration in mesocotyl tissue at the ti...
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15 صفحه اولEstimation of Nicotinamide Nucleotide Coenzymes in Etiolated Maize Seedlings.
7. DEKOCK, P. C., K. COMMISIONG, V. C. FARMER, AND R. H. E. 1NKSON. 1960. Interrelationships of catalase, peroxidase, hematin, and chlorophyll. Plant Physiol. 35: 599-604. 8. DEKOCK, P. C. AND R. I. MORRISON. 1958. The metabolism of chlorotic leaves. 2. Organic acids. Biochem. J. 70: 272-77. 9. DICKMAN, S. R. AND A. A. CLOUTIER. 1951. Factors affecting the activity of aconitase. J. Biol. Chem. ...
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Elongation of the mesocotyl and coleoptile facilitates the emergence of rice (Oryza sativa) seedlings from soil and is affected by various genetic and environment factors. The regulatory mechanism underlying this process remains largely unclear. Here, we examined the regulation of mesocotyl and coleoptile growth by characterizing a gaoyao1 (gy1) mutant that exhibits a longer mesocotyl and longe...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1982
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.69.5.1109