科普專欄–薯不揀單 - 深入淺出–陽光及水深對海洋生物基因構造的影響

海洋可分為Photic Zone(透光帶)及Aphotic Zone(無光帶)兩大區域。759Please respect copyright.ＰＥＮＡＮＡsylDSaHNwQ
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透光帶泛指陽光能滲進的領域，生物可有效進行光合作用。759Please respect copyright.ＰＥＮＡＮＡ8FOC022pRu
而無光帶如字面所示，為陽光無法抵達的領域，光合作用難以進行。759Please respect copyright.ＰＥＮＡＮＡf06CcIRp6M
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（圖2）透光帶的生物能夠進行光合作用的關係，二氧化碳能有效轉化成為碳水化合物，使透光帶成為豐富碳物質的環境。759Please respect copyright.ＰＥＮＡＮＡ6McamE2gsR
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而基於死去的生物會沉積海底關係，深水領域無光帶的細菌會將生物的蛋白質消化成為氮化物，使無光帶成為豐富氮物質的環境。759Please respect copyright.ＰＥＮＡＮＡJI0QXVCcrA
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（圖3）圖中為建構各氨基酸所需的碳及氮元素示意圖。759Please respect copyright.ＰＥＮＡＮＡFzV1Hxcqgl
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有趣的是，位於多碳少氮透光帶的生物，基因排序會導致傾向製造碳需求較高的氨基酸，而非氮元素較高的氨基酸。759Please respect copyright.ＰＥＮＡＮＡ9jre11MPk2
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情況反之亦然出現在無光帶的生裡頭。759Please respect copyright.ＰＥＮＡＮＡ1lLujUzDCt
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這不禁引伸出一道疑問，在生物演化的過程中，外來環境所提供的營養是否會對基因排序的轉變上扮演著一定的角色。759Please respect copyright.ＰＥＮＡＮＡBlxcUyJnwq
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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。759Please respect copyright.ＰＥＮＡＮＡEaYx1y9zn8
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc759Please respect copyright.ＰＥＮＡＮＡt7f9FmCVak
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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。759Please respect copyright.ＰＥＮＡＮＡ8BiOXovuHc
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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/portfolio759Please respect copyright.ＰＥＮＡＮＡiasoPaQcbv
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。759Please respect copyright.ＰＥＮＡＮＡp0eVFgWPYm
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Ref1:https://science.sciencemag.org/content/370/6517/683759Please respect copyright.ＰＥＮＡＮＡcRN0E132Od
Ref2:https://science.sciencemag.org/content/370/6517/655

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