Christmas: Science Picture Challenge #1: O Christmas tree 聖誕：科學照片挑戰 #1 噢 聖誕樹

Before I begin my submission, I must stress how much I would love to see #sciencepic tag has it own challenge and contest!! Thank you @mcw and @steemstem for bring this tag back!!
在我開始提交之前，我必須強調我有多喜歡#sciencepic標籤有自己的挑戰和比賽！謝謝@mcw和@steemstem把這個標籤帶回來！

O Christmas Tree

噢 聖誕樹

Ordinary Christmas tree are usually decorated with lights and ornaments, but this very unique Christmas tree of mine can light up by itself (visible only in extremely dark environment and requires special long exposure camera for the image capturing). The Christmas tree is actually drawn using bacteria that carries the bacterial luciferase gene, which is an enzyme that catalyse the release of light energy from ATP and luciferin. The bacterial luciferase gene is located behind a gene promoter, which act as a switch to control the amount of the enzyme produce and therefore affecting the final amount of light being captured (more enzyme, more light, more to the red end of the side bar). This is a common system biologists employ to study how the physiological change of the bacteria will affect certain genes expression (by monitoring the intensity of the light). And of course for other biologist, we will make arts out from them~

普通的聖誕樹通常裝飾著燈光和裝飾品，但是這種非常獨特的聖誕樹可以自己發亮（只有在極其黑暗的環境中才能看到，需要專門的長時間曝光照相機才能進行圖像拍攝）。聖誕樹實際上是利用攜帶細菌螢光素酶基因的細菌繪製的，該基因是一種催化ATP和螢光素釋放光能的酶。細菌螢光素酶基因位於基因啟動子的後面，基因啟動子作為開關來控制酶產生的量，因此影響捕獲的最終光量（越多的酶，越多的光，越多的紅端[在側桿的顏色表]）。這是生物學家用來研究細菌的生理變化如何影響某些基因表達（通過監測光的強度）的常用系統。當然，對於其他生物學家，我們也會從他們身上"創作"藝術。

supplementary picture

補充圖片

Lights out~ this is how the plate looks when we are not detecting for the lights.
熄燈〜這是當我們沒有檢測到燈光時板的外觀。

@mcw had some earlier Steemit post on luciferase, feel free to check them out
@mcw早期在Steemit 發表了一些螢光素酶的文章，可以去看一下
https://steemit.com/sciencepic/@biuiam/christmas-science-picture-challenge-1-o-christmas-tree-1

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