2026 biology talkshow:植物的向光性與生長素發現史 (選修生物II)

詳盡回顧植物向光性研究長達一個多世紀的科學發展史，解析植物如何在缺乏神經與肌肉的情況下精準轉向。首先介紹達爾文父子透過實驗確立植物尖端為感光部位，隨後科學家們接力證實這種反應是由可擴散的化學物質所引導。透過溫特的定量分析，生長素（Auxin）的身分正式浮出水面，揭示背光側細胞不對稱生長的奧秘。現代分子生物學進一步闡明藍光受體與酸生長假說，解釋生長素如何改變細胞壁結構以實現物理拉伸。聽完後可以自主進行線上測驗，檢視學習成效喔~(需要登入gemini) 測驗網址 https://gemini.google.com/share/97bff690328f Powered by Firstory Hosting

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2026 biology talkshow:植物的向光性與生長素發現史 (選修生物II)

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