2026 biology talkshow: 植物的生化防禦戰-茉莉酸與水楊酸 (選修生物II)

深入解析植物在面對威脅時，如何透過精密的化學機制進行防禦與生存競爭。植物雖然無法移動，卻能靈活運用茉莉酸來對抗啃食的昆蟲，藉由分泌毒素使其喪失消化能力，或散發氣味吸引天敵前來支援。面對病毒與病原菌等微觀敵人時，則啟動水楊酸防禦系統，採取犧牲局部細胞的「焦土政策」並向全身發送化學警報，甚至能以揮發物質提醒鄰近植株加強戒備。這兩大防禦途徑存在著如同蹺蹺板般的拮抗作用，讓植物能根據敵人的類型，在有限的能量資源中精準分配，展現出沉默卻極具智慧的生化戰略。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/33a9d670bdbb Powered by Firstory Hosting

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2026 biology talkshow: 植物的生化防禦戰-茉莉酸與水楊酸 (選修生物II)

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