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

氮是蛋白质、DNA和让植物进行光合作用的叶绿素所必需的。

They contain chlorophyll, which helps create various colors.

他们所含的叶绿素颜深浅不同。

While chlorophyll is there, it's there and it's green, while if taken away in the shorter days and shorter months of autumn, now you're releasing some of the true colors back to the surface.

当叶绿素存在的时候，叶子是绿的，而如果在秋天白天较短的时候消失，叶一些真实的颜到了表面。

Now chlorophyll is key because it gives the leaves its green colors during the long summer months, but beneath the surface, the leave actually always have the red, the oranges, the yellows in place.

叶绿素是很重要的物质，因为在漫长的夏季，叶绿素能使叶呈现绿，但在叶的下表皮，总会有红、橘、黄的区域。

Their babies retain the ability to produce their own chlorophyll, though they can't generate energy from sunlight until they've eaten enough algae to steal the necessary genes, which they can't yet produce on their own.

海蛞保留了独立生成叶绿素的能力，尽管它们需要吃足够的藻类来获得必要的基因 (此时它们无法独立产生这种基因) 后才能从阳光中获得能量。

They're just hidden by the abundance of green chlorophyll during the warmer months.

它们只是在温暖的月份被大量的绿叶绿素掩盖。

It's a major component of all proteins and chlorophyll.

它是所有蛋白质和叶绿素的主要成分。

The chlorophyll inside the leaves traps light from the sun.

叶子内的叶绿素吸收来自太阳的光。

As the chlorophyll in a tree's leaves begins to wane, these underlying pigments become visible.

随着叶中的叶绿素开始减少，这些潜在的素变得可见。

Then comes the chlorophyll-rich palisade mesophyll, where the bulk of photosynthesis occurs.

然后是富含叶绿素的掌状中叶，大部分的光合作用在这里发生。

But beneath the surface, the leaves actually always have the reds, the oranges, the yellows in place while chlorophyll is there, it's there and it's green.

但在叶面之下，叶实际上在有的地方呈红、橙和黄，而叶绿素所在的位置呈现的是绿。

The third way plants interact with incoming light is by radiating it back out at a different wavelength, producing what's called chlorophyll fluorescence.

而植物利用光的第三种方式是让光以一种与之前不同的波长发射去，而这会产生一种叫叶绿素荧光的物质。

The incalculable energy of chlorophyll, the green leaf itself, dominates the earth, and the root in the soil is the inescapable fact.

主宰着大地的是叶绿素无法估算的能源以及绿叶本身，土壤中有根的存在，这是自不待言的。

The hornworts provide housing, and the bacteria provide nitrogen, which is an important part of chlorophyll, the pigment involved in photosynthesis, among other things.

角苔提供住房，细菌提供氮，氮是叶绿素的重要组成部分，叶绿素是参与光合作用的素，还有其他东西。

(Green-on-brown detection, which spots the green chlorophyll in growing plants has been around for a while. Bilberry's process also detects trickier green-on-green).

（绿棕检测技术已经存在一段时间了，这种检测技术可以检测生长中的植物中的绿叶绿素。Bilberry公司还可以识别更棘手的绿杂草和绿作物）。

Taking the sunlight in, and through a process known as photosynthesis they're able to transfer the sun's energy and create a chemical known as chlorophyll.

吸收阳光，通过光合作用的过程，它们能够转移太阳的能量并产生一种叫做叶绿素的化学物质。

While it's taken away in the shorter days, the shorter months of autumn, now you're releasing some of the true colors back to the surface.

在没有叶绿素产生的短暂秋季，我们可以看到叶表皮真正的颜。

Or maybe plants were even more clever and turned the weakness of chlorophyll into a strength?

也可能是植物更聪明，将叶绿素的弱点转换为其强项？

And this is where chlorophyll really shines.

这才是叶绿素真正闪光的地方。

They're able to transfer the sun's energy and create a chemical known as chlorophyll.

叶能够转移太阳的能量，产生一种被称为叶绿素的化学物质。