Regulation of Bud Rest in Tubers of Potato, Solanum tuberosum L: VII. Effect of Abscisic and Gibberellic Acids on Nucleic Acid Synthesis in Excised Buds 1

AUTOR(ES)

Shih, C. Y.

RESUMO

The effect of gibberellin A3 (10−4m) and abscisic acid (10−4m), applied separately and together, on incorporation of 3H-thymidine and 3H-uridine into DNA and RNA of buds from freshly harvested potatoes was investigated. In some treatments apical buds in intact tubers were treated three times daily for 3 days with test solution before the buds were excised and treated an additional 12 hours in Petri dishes. In other treatments, untreated buds were excised and treated 12 hours. Irrespective of length of treatment, gibberellin A3 slightly promoted synthesis of DNA and RNA, and abscisic acid essentially blocked such synthesis, in both the presence and absence of gibberellin A3.

Documentos Relacionados

• Regulation of Bud Rest in Tubers of Potato, Solanum tuberosum L: VI. Biochemical Changes Induced in Excised Potato Buds by Gibberellic Acid 12
• Regulation of Bud Rest in Tubers of Potato, Solanum tuberosum L: VIII. Early Effects of Gibberellin A3 and Abscisic Acid on Ultrastructure
• Nucleotide and deduced amino acid sequence of an aspartic proteinase inhibitor homologue from potato tubers (Solanum tuberosum L.).
• The Effects of Abscisic Acid on Growth and Nucleic Acid Synthesis in Excised Embryonic Bean Axes 1
• Expression of lipoxygenase in wounded tubers of Solanum tuberosum L.