2026 biology talkshow:植物的「假性懷孕」：單性結果與激素的生物學協奏曲 (選修生物II)

詳細探討植物單性結果的生物機制，解釋果實如何在不經過受精與種子發育的情況下成熟。首先從科學史的角度，說明植物學家如何發現植物激素（如生長素與吉貝素）在果實發育中扮演的關鍵角色。隨後區分自然演化的天然單性結果與人為干預的誘導單性結果，並深入分析分子層級的信號轉導路徑。這種「假性懷孕」的現象不僅讓人類能享用無籽果實，也減少了農業生產對授粉媒介的依賴。最後提醒，雖然這種特質帶來極大的經濟效益，但也可能導致植物因缺乏基因多樣性而面臨演化上的風險。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/e3950f3330a7 Powered by Firstory Hosting

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2026 biology talkshow:植物的「假性懷孕」：單性結果與激素的生物學協奏曲 (選修生物II)

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