Phototropic sensitivity in Vaucheria geminata regulated by 3',5'-cyclic AMP

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概要

• 論文の詳細を見る

• Exogenous 3',5'-cyclic AMP in physiological concentrations inhibits the phototropic bending of Vauckeria geminata without affecting growth. Related substances known to change the intracellular cyclic AMP level also alter phototropic sensitivity. This indicates that the steering process (i.e., initial phototropic response) is separate from growth itself. Cyclic AMP extracted from this alga amounted to 0.2-0.3 nmole per g fresh weight, or about 3 μM on a cytoplasm volume basis. This value coincides with expected results from experiments with exogenous cyclic AMP. The results suggest that endogenous cyclic AMP may play an essential role in the gain-controlling process of phototropism.

• 日本植物生理学会の論文

著者

• Hataoka Hironao

  Department Of Biology Faculty Of Science Osaka University:(present)institute Of Agricultural Researc

関連論文

• Phototropic sensitivity in Vaucheria geminata regulated by 3',5'-cyclic AMP

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