當沙門氏菌處於缺乏營養的環境,例如缺乏鎂(Magnesium)的時候,他們便會停止生長。670Please respect copyright.PENANAW7AAFagcuH
670Please respect copyright.PENANAorJ7SDJhOK
670Please respect copyright.PENANADYN2MRCg8B
而一但營養供應再次充足的時候,他們有能力在短時間內立刻極速生長。670Please respect copyright.PENANAvPwD2ibTLV
670Please respect copyright.PENANA2LaNt4Ognf
670Please respect copyright.PENANAGmqO2k68C7
(圖2)當微生物從外部攝取營養後,便能夠將營養轉化成為能量,以ATP物質的方式儲存。670Please respect copyright.PENANAWTyr02DTPX
670Please respect copyright.PENANAhR4XoUX7ic
670Please respect copyright.PENANA6mrvfnguUr
製造蛋白質固然需要使用ATP能量,但摧毀蛋白質的過程中亦需要用上ATP能量才能完成。670Please respect copyright.PENANAbqDlKsVrgo
670Please respect copyright.PENANAvX6byPpsq9
(圖3)當外部沒有營養,沙門氏菌自然沒能製成充夠的ATP,那麼需要ATP才能完成的蛋白質摧毀程序亦會因而減慢。670Please respect copyright.PENANAlO4qxLTkjm
670Please respect copyright.PENANAGlXURxj88C
670Please respect copyright.PENANAgnmmxOHfA2
在這個情形下,當營養再度充足的時候,他們很快便能找回應有的繁殖速度。670Please respect copyright.PENANAwwUrW7xUiW
670Please respect copyright.PENANAmqXL5VmYbp
(圖4)同一個情況,當外部沒有營養,沙門氏菌自然沒能製成充夠的ATP,但若然在此時候落藥(例如停止蛋白質生產工序,騰出更多ATP能源出來),逼使ATP數量增加,那麼需要ATP才能完成的蛋白質摧毀程序亦會因而繼續全速進行。670Please respect copyright.PENANAn337qwO6iY
670Please respect copyright.PENANAYmLE3qBUFV
670Please respect copyright.PENANA446uwxzHwX
在這個情形下,當營養再度充足的時候,他們需要更長的時間才能找回應有的繁殖速度。670Please respect copyright.PENANA2LrdqGpArd
670Please respect copyright.PENANAQCYxydXCwY
670Please respect copyright.PENANAtuU7pqNBR7
科學家作出一系列的研究(Ref1),發現微生物及酵母在營養短缺的時候,會故意將一些重要的蛋白質保存下來,不讓它們遭受摧毀。670Please respect copyright.PENANAY12vLW1234
670Please respect copyright.PENANAqR2YgeGcJ1
這些重要的蛋白質,能夠讓他們再度獲得營養的時候得以快速生長。670Please respect copyright.PENANAJmefhZt8Mq
670Please respect copyright.PENANAlEzQ3jQ2ME
而當我們利用藥物強迫他們在營養短缺的時候繼續保持蛋白質摧毀工序的話,那些重要的蛋白質亦無可避免遭受摧毀。670Please respect copyright.PENANAkMSEry5zrn
670Please respect copyright.PENANAdHgXy32Byz
在這個情況下,當他們再度獲得營養後,便要先花時間製作那些重要的蛋白質,才能得以快速生長。670Please respect copyright.PENANAWRtWdousMW
670Please respect copyright.PENANAEeyQzN9y9V
若果能夠把細菌的蛋白質摧毀工序玩弄得暸如指掌,亦將可以成為一道針對性消滅他們的方法。670Please respect copyright.PENANAvzZ9QK1ukw
670Please respect copyright.PENANAxJMdyylOMA
670Please respect copyright.PENANAo9I92WbstZ
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。670Please respect copyright.PENANArk61ubKsEr
670Please respect copyright.PENANAzpRTDPtoFk
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/toc670Please respect copyright.PENANAlUti59TzYF
670Please respect copyright.PENANAcvZq4UmrD1
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。670Please respect copyright.PENANALQv7FHsgaj
670Please respect copyright.PENANATr9LUV7r8x
Link:670Please respect copyright.PENANAVeFNK6xscP
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio670Please respect copyright.PENANAx6wJdwWJA7
670Please respect copyright.PENANA6dRMqjugx5
基於WhatsApp/Facebook等問題,IG將不會再作更新,只會寄居本土LIHKG及Penana。670Please respect copyright.PENANAw37FuU3PFM
670Please respect copyright.PENANAAosV95EsfB
Ref1:https://stke.sciencemag.org/content/14/667/eabc4235670Please respect copyright.PENANAtu7PXjZ6dW
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #145
三十秒科學–細菌逆境求生的手段
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