In contrast, chlorophyll fluorescence is a direct measure of photosynthetic activity.

相比之下，叶绿素荧能直接地测量作用活动。

That's how much is being sucked in by these photosynthetic organisms.

这就是这些生物吸收的量。

Our atmosphere is full of it thanks to plants and photosynthetic bacteria.

多亏了植物和进作用的细菌，我们的大气中充满了碳水化物。

There are some phytoplankton, some photosynthetic plankton that also undergo vertical movements.

有一些浮游植物，一些作用的浮游生物也进垂直运动。

Because they don't have nutrients, the photosynthetic rates themselves will decrease.

因为这样它们就会得不到养分，作用速度会下降。

The whole of the plant is pretty much photosynthetic, so it grows fast.

整个植物都在做作用，所以它长得很快。

If not dealt with, the excess light can damage their photosynthetic machinery.

如果不解决这个问题，过量的线会毁坏植物中运作用的机制。

Over the next few hundred million years, early photosynthetic cells just churned this stuff out.

在接下来的几亿年里，早期的作用细胞产生了大量这样的物质。

And then, the symbiotic algae that live inside corals-which are photosynthetic food factories-abandon the corals.

之后，珊瑚礁体内的共生藻类，也就是进作用的食物工厂，会抛弃珊瑚。

But that's just one of three ways that light entering a photosynthetic organism is used.

但是这仅仅只是进入生物体内被使用的三种方式的其中一种。

At least 50% of the oxygen on earth is produced by photosynthetic microorganisms like algae and cyanobacteria.

地球上至少 50％ 的氧气都是由微生物，例如藻类和蓝细菌产生的。

Here a photosynthetic flagellate called Euglena deses is dividing.

在这里，一种叫做裸藻的鞭毛虫正在分裂。

So effectively we have photosynthetic animals.

如此有效，我们有作用的动物。

They're super green, they're fantastically photosynthetic.

它们是超级绿色的，它们的作用非常好。

They feed mainly on plankton, like photosynthetic cyanobacteria.

它们主要以浮游生物为食，例如蓝藻。

Those are Prochlorococcus. They are the smallest and most abundant photosynthetic cell on the planet.

那些是原绿球藻。它们是地球上最小和最丰富的细胞。

Corals can be found here, but lack the  photosynthetic symbiotes of their tropical sunlit cousins.

珊瑚可以在这里找到，但缺乏热带阳照射的表亲的共生体。

Photosynthetic organisms, the green solar panels of nature, capture sunlight to power the process of photosynthesis.

生物，即自然界的绿色太阳能电池板，捕获阳来为作用过程提供动力。

And whatever oxygen that was available was mostly being produced by photosynthetic cyanobacteria near the surface.

并且无论可用的氧气主要是由地表附近的蓝藻产生的。

Braghiere: Because they don't have nutrients, the photosynthetic rates themselves will decrease.

Braghiere：因为它们没有营养，作用速率本身会降低。