Nitrogen is needed for proteins, DNA and the chlorophyll that let plants perform photosynthesis.

氮是蛋白质、DNA和让植物进行光作用的叶绿素所必的。

To understand why, think back to photosynthesis and chlorophyll.

想知道为什么，请回想一下光作用和叶绿素。

It would have needed sunlight for that so that photosynthesis could begin.

它光，这样才能进行光作用。

Zooxanthellae supply their coral hosts with food, which they produce through photosynthesis.

虫黄藻通过光作用来成食物，并将其贡献给珊瑚宿主。

With artificial photosynthesis, maybe we can split water molecules to make fuel like a plant.

通过人工光作用，许我们可以分裂水分子，像植物一样制造燃料。

Photosynthesis produced a waste product, oxygen, which was poisonous to the first organisms on Earth.

光作用产生了一种“废物”——氧气，它对地球上最初的生物体来说是有毒的。

Photosynthesis ground to a near halt in the trees facing the artificial heat wave.

在面对人工热浪的树木中，光作用几乎停滞。

Mitochondria basically reverse photosynthesis, in a similarly complex process.

线粒体以类似的复杂过程， 基本上逆转了光作用。

To understand the new breakthrough, it is important to know how photosynthesis works.

想理解这个新的突破，重点了解光作用如何运作。

This is perfect for photosynthesis and photosynthesis is dope, Hello phytoplankton productivity!

这非常适光作用，而光作用又是兴奋剂，您好，浮游植物的生产力！

Photosynthesis takes sunlight and stores solar energy in chemical bonds.

的光作用吸收了太能并把它存储在化学键中。

Instead, they modified the DNA in the chloroplasts-organelles responsible for photosynthesis, not reproduction.

相反，他们修改了叶绿体中的DNA，叶绿体是负责光作用而不是繁殖的细胞器。

Over time, that evolved into a chloroplast, the organelle that does photosynthesis.

随着时间的推移，它们进化成叶绿体，就是进行光作用的细胞器。

The leaves use the ample sunlight up there to create sugars through photosynthesis.

叶子利用那里充足的光通过光作用产生糖。

Their invention-a small biological circuit they call E-Kaia-harnesses the energy plants produce during photosynthesis.

这3位在校学生的发明是一种名为E-Kaia的生物充电器，原理是利用植物在光作用中产生的能量。

It stops photosynthesis so the trees cannot take in the carbon.

它会阻止光作用，那样树木就不能吸收碳了。

So much that photosynthesis becomes impossible for 99% of Earth's plants.

甚至使得 99% 的植物无法进行光作用。

They're trying to play with the biology of photosynthesis itself.

她们想玩弄生物的光作用于股掌之中。

Plants have a system called photosynthesis which provides us with oxygen.

植物有一个名叫“光作用”的系统，它能够产生氧气。

Plants who need this light to photosynthesis will die.

这种光进行光作用的植物会死亡。