Polyamines and Anaerobic Elongation of Rice Coleoptile

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概要

• 論文の詳細を見る

• The role of polyamines in the anaerobic elongation of rice (Oryza sativa L.) coleoptiles was studied. The reduced growth of rice coleoptiles under anoxic conditions was accompanied by a massive accumulation of free putrescine. Putrescine was synthesized from arginine in a reaction catalyzed by arginine decarboxylase (ADC). The anoxic titer of putrescine was closely correlated with elongation of coleoptiles. In experiments in which putrescine and inhibitors [a-difluoromethylarginine (DFMA) and a-difluoromethylornithine (DFMO)] of the synthesis of polyamines were exogenously supplied, we demonstrated an absolute requirement for putrescine, synthesized by ADC, for anaerobic elongation of coleoptiles. The presence of exogenous putrescine (alone or in combination with DFMA) increased the rate of anaerobic elongation of coleoptile by 30-40%.

• 日本植物生理学会の論文

著者

• Hochkoeppler Alejandro

  Istituto Biosintesi Vegetali C. N. R.

• Reggiani Remo

  Istitute Biosintesi Vegetali C.n.r.

• Reggiani Remo

  Istituto Biosintesi Vegetali C. N. R.

• Bertani Alcide

  Istituto Biosintesi Vegetali

• Bertani Alcide

  Istituto Biosintesi Vegetali C. N. R.

• Bertani Alcide

  Istitute Biosintesi Vegetali, C.N.R.

関連論文

• Polyamines and Anaerobic Elongation of Rice Coleoptile
• Evidence for the Involvement of Phospholipase C in the Anaerobic Signal Transduction
• Purification and Synthesis under Anaerobic Conditions of Rice Arginine Decarboxylase : ENVIRONMENTAL AND STRESS RESPONSES : PROTEINS, ENZYMES AND METABOLISM
• Relationship between the Accumulation of Putrescine and the Tolerance to Oxygen-Deficit Stress in Gramineae Seedlings
• Involvement of Calcium and Calmodulin in Protein and Amino Acid Metabolism in Rice Roots under Anoxia : ENVIRONMENTAL AND STRESS RESPONSES
• Utilization of Stored Nitrate during the Anaerobic Germination of Rice Seeds
• Accumulation and Interconversion of Amino Acids in Rice Roots under Anoxia
• Alteration of Levels of Cyclic Nucleotides in Response to Anaerobiosis inRice Seedlings

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