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合作用活动。

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

就合生物吸收量。

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

多亏了植物和进行合作用细菌，我们大气中充满了碳水化合物。

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

有一浮游植物，一合作用浮游生物也进行垂直运动。

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

因为样它们就会得不到养分，合作用速度会下降。

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

整个植物都在做合作用，所以它长得很快。

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

如果不解决个问题，过量会毁坏植物中运行合作用机制。

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

在接下来几亿年里，早期合作用细胞产生了大量样物质。

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

之后，珊瑚礁体内共生藻类，也就进行合作用食物工厂，会抛弃珊瑚。

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

但仅仅只进入合生物体内被使用三种方式其中一种。

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

地球上至少 50％ 氧气都由合微生物，例如藻类和蓝细菌产生。

Here a photosynthetic flagellate called Euglena deses is dividing.

在里，一种叫做裸藻合鞭毛虫正在分裂。

So effectively we have photosynthetic animals.

如此有效，我们有合作用动物。

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

它们超级绿色，它们合作用非常好。

They feed mainly on plankton, like photosynthetic cyanobacteria.

它们主要以浮游生物为食，例如合蓝藻。

They jumped ship, leaving the chitin rafts  behind to be full-time photosynthetic drifters.

他们跳船，留下几丁质筏，成为全职合作用漂流者。

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

那原绿球藻。它们地球上最小和最丰富合细胞。

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

合生物，即自然界绿色太阳能电池板，捕获阳来为合作用过程提供动力。

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

并且无论可用氧气主要由地表附近合蓝藻产生。

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

Braghiere：因为它们没有营养，合作用速率本身会降低。