高強度的紫外光、高溫高壓無氧氣,單憑字面來看已經感受到其強大的破壞力,究竟地球上還有沒有生物可以在這嚴峻的環境生存得到?303Please respect copyright.PENANAEfsBaFQJrS303Please respect copyright.PENANAeMXjkX66ch
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水熊蟲(Water Bears),就是其中一種能夠活下來的生物。303Please respect copyright.PENANA8kibqUeaRy
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(圖2)水熊蟲是約長0.5-1mm的小型動物,屬於緩步動物科,約有1300隻品種。303Please respect copyright.PENANADHeA1XG5FL303Please respect copyright.PENANA8H0lKASMFn
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牠們大多聚居在潮濕土壤及青苔裡頭,深海裡頭亦能找到牠們的蹤影,甚至在太空環境亦能生存得到,生命力非常頑強。303Please respect copyright.PENANAZpzcZOmlOD
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(圖3)最近有科學家發現(Fig1),某品種對紫外光呈高抗性的水熊蟲品種,會在紫外光照射底下發出藍光。303Please respect copyright.PENANAXt3EmMdAz9303Please respect copyright.PENANAOnNUztenZw
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他們亦嘗試抽取水熊蟲水溶性的部份,發覺裡頭的色素能夠有效為其他低紫外光抗性的水熊蟲及其他蟲類抵擋紫外光帶來的殺傷力。303Please respect copyright.PENANAvzln5flSxU
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除水熊蟲外,鸚鵡在紫外光下均會發出螢光,但會否為牠們帶來紫外線的抵抗力還是疑問。303Please respect copyright.PENANAOVjogsjAv8
而水熊蟲這種抵禦紫外角的色素科學結構,還需進一步的研究才能確立。303Please respect copyright.PENANAX2NNS60kXd
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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。303Please respect copyright.PENANA7Ve1YqHItm
303Please respect copyright.PENANApRyGPjko5W
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/toc303Please respect copyright.PENANACYsRvsLWaO
303Please respect copyright.PENANAnJ9o2azKE7
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。303Please respect copyright.PENANAV5TUrv8I9B
303Please respect copyright.PENANAOZTc8h4VWW
Link:303Please respect copyright.PENANAZiVsPkMux0
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio303Please respect copyright.PENANAukBYgGw4hV
303Please respect copyright.PENANAjNEgPrfAnr
303Please respect copyright.PENANAKd5qzsCZbb
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。303Please respect copyright.PENANAQtZwASgeNy
Ref1:https://royalsocietypublishing.org/doi/10.1098/rsbl.2020.0391303Please respect copyright.PENANAZjHDfVIMWu
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篇 #79
深入淺出–能夠對抗紫外線照射的生物
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