植物雖無法躲避昆蟲的侵襲,但也並非是任蟲魚肉的存在。242Please respect copyright.PENANALy00gNPdui
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它們對抗外敵的其中一道方式,就是在葉子中製造一些對昆蟲有毒的化學物。242Please respect copyright.PENANACkUZop27yT
如果對方膽敢吃掉自己的話,下場就只有死路一條。242Please respect copyright.PENANA3BIS9HbIk1
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(圖2)圖中紅色結構的是葉子其中一種專用作對付昆蟲的有毒化學物(對人類及大部份動物無害),而植物自身攜帶著一隻名為BtPMaT1的蛋白酶,它能夠將有毒的化學物改造成為無害化學物,相信是為了避免對付害蟲的時候會不慎毒害自己而設。242Please respect copyright.PENANAXec3oV6t9e
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換句話說,植物有著製作毒藥能力的同時,亦可製作相應的解藥自保。242Please respect copyright.PENANApZAA3UOlAa
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(圖3)然而,害蟲可不是吃素的(雖然的確是在吃素),有科學家發現有部份害蟲身上竟然發展出跟植物一模一樣的BtPMaT1基因,相信是透過進食葉子時從中將該基因鑴在自己的基因圖譜裡頭,從而發展出對抗有毒化學物的方法。242Please respect copyright.PENANA2XmBQMcZbK
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現在有不少科學家正在研究箇中的機制,若然能成功拆解箇中的秘密,分分中可以反其道而行,將只對害蟲有毒的基因注入在植物裡頭,讓害蟲們偷取後自取滅亡。242Please respect copyright.PENANA4UEHLz7qUk
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如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。242Please respect copyright.PENANAa0TxJw238G
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。242Please respect copyright.PENANA5xsCRksXUN
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio242Please respect copyright.PENANATCjtOhtrax
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除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。242Please respect copyright.PENANADxw1mAtqgj
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Ref1:https://www.cell.com/cell/fulltext/S0092-8674(21)00164-1242Please respect copyright.PENANAGCB2LQyeYF