Involvement of Calcium and Calmodulin in Protein and Amino Acid Metabolism in Rice Roots under Anoxia : ENVIRONMENTAL AND STRESS RESPONSES

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概要

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• The pretreatment of rice roots for 1 h in aerobic conditions with the Ca^<2+^gt;-channel blockers ruthenium red (RR) and verapamil and the calmodulin (CaM) antagonists N-(6-aminohexyl)-5-chloro-1-naphtylenesulfonamide (W-7) and trifluoperazine, induced during 3 h of anoxia: (i) inhibition of amino acid and γ-aminobutyric acid (Gaba) accumulation; (ii) a decline in the protein con-tent; (iii) a release of amino acids and K^+ into the growth media. The calcium ionophore A23187 reversed these effects in RR-treated roots. Moreover, the aerobic pretreatment of rice roots with A23187 alone or CaCl_2 increased the accumulation of amino acids and Gaba. These data indicate that the Ca^<2+^gt;/CaM complex is involved in the transduction of an anaerobic signal by inhibiting proteolysis and solute release, and activating the Ca^<2+^gt;/CaM-dependent glutamate decarboxylase.

• 日本植物生理学会の論文

著者

• Reggiani Remo

  Istitute Biosintesi Vegetali C.n.r.

• Bertani A

  Istitute Biosintesi Vegetali C.n.r.

• Bertani Alcide

  Istituto Biosintesi Vegetali

• Reggiani R

  Inst. Biosintesi Vegetali Cnr Milano Ita

• AURISANO Nicoletta

  Istitute Biosintesi Vegetali, C.N.R.

• Aurisano Nicoletta

  Istitute 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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