Benzyladenine-induced Movement of 14C-Labeled Photosynthate into Roots of Vitis vinifera
AUTOR(ES)
Shindy, Wasfy W.
RESUMO
Roots of Vitis vinifera L., were treated with benzyladenine when the plant shoots were 38 cm long. Seventy-two hours after benzyladenine treatment, apical or basal leaves on separate shoots were exposed to 14CO2. Control shoots received 14CO2 but no benzyladenine. Application of benzyladenine directed 14C-photosynthate to roots, but a small amount of radioactivity was detected in the shoot tip when 14CO2 was administered to an apical leaf. Distribution of radioactivity among the sugar, organic acid, and amino acid fractions was altered by benzyladenine treatment. In all parts of plants with roots treated with benzyladenine and apical leaf fed 14CO2, the percentage of the total label in the sugar fraction comprised of fructose was generally more than twice that in control plants.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=366262Documentos Relacionados
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