評(píng)論
打印
But if the bacteria won't grow in the lab, how do you find out what they can do?
但是，如果細(xì)菌不能在實(shí)驗(yàn)室里生長，怎樣才能知道它們能做什么呢？
How do you test them start with the soil?
怎么對(duì)它們進(jìn)行測試呢，從土壤開始。
One of the things we've been doing is extracting the genes from the bacteria directly
我們一直在做的事就是直接從細(xì)菌中提取基因，
without culturing them first was pulling their DNA out directly from the soil.
而不是先培養(yǎng)它們，直接從土壤中提取它們的DNA。
And then sequencing pieces of that DNA to describe the organisms that are in that soil.
然后對(duì)DNA片段進(jìn)行測序，以描述土壤中的生物。
And using that methodology, we find that most of the organisms in the soil have not yet been described.
使用這種方法，我們發(fā)現(xiàn)土壤中的大多數(shù)生物還沒有被描述過。
The search for new microbial life has taken researchers from backyard soil to the ocean floor, to the heavens.
尋找新的微生物生命已經(jīng)把研究人員從后院的土壤帶到了海底，再到天空。
A meteorite from Mars has fossilized structures that look suspiciously like small bacteria.
一顆來自火星的隕石有著看起來像微小細(xì)菌的化石。
Scientists are coming to the conclusion that life may be far more common in the universe than we had supposed.
科學(xué)家們正在得出結(jié)論，宇宙中的生命可能比我們想象的要普遍得多。
Anywhere that there is liquid water there is a possibility of life.
任何有液態(tài)水的地方都有存在生命的可能性。
And we know that here on earth that's just a fundamental requirement
我們知道，在地球上這是一個(gè)基本的要求。
and in fact anywhere on earth where there is liquid water you find there is life.
事實(shí)上，地球上任何有液態(tài)水的地方都有生命。
And so the fact that on planets, such as on Mars, where you might have hydrothermal features under some of the ice floes that might make liquid water is very exciting.
因此，在火星等行星上，在一些浮冰下面可能有水熱特征，能產(chǎn)生液態(tài)水，這讓人感到非常興奮
The experts say this is the beginning of the Golden Age of microbiology.
專家們說這是微生物學(xué)黃金時(shí)代的開始。
Industry medicine and the definition of life itself are all being changed by single-cell creatures you and I can't see.
工業(yè)醫(yī)學(xué)和生命本身的定義，都在被你我看不見的單細(xì)胞生物所改變。
Everyone should look at pond water at least a few times a year, if you're a microbiologist.
如果你是微生物學(xué)家的話，一年至少應(yīng)該觀察池水幾次。
Because now the days of technology and DNA and high-tech things, it is nice to go look in a microscope once and want.
因?yàn)椋诳萍?、DNA和高科技的當(dāng)下，進(jìn)入顯微鏡下的世界真的很不錯(cuò)。
And look at that life and that diversity of life.
看看生命體和生命的多樣性。
Because you can't just put it in a vacuum or look at it as a bunch of a's t's GS and C's and a chromosome that's that this is not life and itself.
因?yàn)槟悴荒馨阉旁谡婵罩?，或者把它看成是一堆字母和染色體，這不是活的生命。
So you should go look upon water, everyone should look upon water and they will understand that there's much more about a feeling about what life is.
所以應(yīng)該多觀察水，之后就會(huì)理解的，對(duì)生命產(chǎn)生更多的感受。
Almost any other kind of experience they could have.
能夠獲得幾乎所有其他類型的經(jīng)驗(yàn)。
You've been given all the information, now it's your turn to discuss the questions.
你已經(jīng)得到了所有的信息，現(xiàn)在到討論時(shí)間了。
Take a moment to talk about the following:
花點(diǎn)時(shí)間談?wù)勔韵聨c(diǎn)：
How is the widespread use of antibiotics contributed to new health care problems?
抗生素的廣泛使用是如何引發(fā)出新的醫(yī)療問題？
How are bacteria economically important to humans?
細(xì)菌對(duì)人類經(jīng)濟(jì)發(fā)展的重要性是什么？
