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Updated: Jan 9, 2026

Regulation of Hormone Secretion
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Regulation of Hormone Secretion

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定量的な遺伝子回路モデルによる光周期調節体の予測

José Domingo Salazar1, Treenut Saithong, Paul E Brown

  • 1Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK.

Cell
|December 17, 2009
PubMed
まとめ

植物は光周期センサーを使って季節に適応する. この研究では,FLAVIN,KELCH,F-BOX (FKF1) が,植物開花時間の新しいコントローラーである花開き場所T (FT) を直接活性化することを明らかにしています.

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Regulation of Hormone Secretion01:19

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Regulation of hormone secretion is a finely tuned orchestration driven by various types of stimuli, encompassing neural, humoral, and hormonal signals. Environmental cues instigate neural stimuli, where action potentials traverse nerve fibers to reach their designated targets. An illustrative scenario is the body's response to stress, wherein the sympathetic nervous system releases epinephrine from the adrenal glands, inducing the well-known 'fight or flight' reaction.
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Insulin secretory vesicles release insulin to stimulate blood glucose uptake and regulate carbohydrate metabolism. When the blood glucose levels increase, glucose enters the pancreatic β-islet cells through glucose transporters. Once inside, glucose is metabolized through glycolysis, the citric acid cycle, and the electron transport chain, producing ATP. This increase in ATP concentration closes ATP-sensitive potassium channels, leading to depolarization of the membrane and the opening of...
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Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
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