2026 biology talkshow: 植物激素吉貝素的發現史到生理功能 (選修生物II)

深入探討吉貝素（Gibberellin）從發現到應用於農業的科學歷程，起始於對水稻「笨苗病」成因的好奇。科學家最初發現這種讓植物異常抽高的物質源自真菌分泌，隨後研究證實植物本身也會自行合成此種生長激素。解析吉貝素如何透過降解抑制生長的 DELLA 蛋白來「解除煞車」，進而達成促進細胞伸長、種子萌發及產生無籽果實等生理功能。這項發現不僅改寫了植物生理學，更透過研發耐倒伏的矮稈品種觸發了綠色革命，為解決全球糧食危機做出巨大貢獻。總結而言，吉貝素是調節植物生命節律的核心，也是人類精準操作農業生產的關鍵工具。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/cbedbbea4c26 Powered by Firstory Hosting

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2026 biology talkshow: 植物激素吉貝素的發現史到生理功能 (選修生物II)

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