One toxin coronatine makes plants' stomata open up, allowing bacteria to enter more freely.

一旦毒素冠菌素打开了植株的气孔，细菌入侵就更畅阻了。

Space around the lower epidermis and cuticle are the stomata, with guard cells on either side.

下层表皮和角质层周围的空间气孔，两边保卫细胞。

But they can also close the stomata to prevent other things like water from escaping.

但它们也可以关闭气孔，以防止水等其他东西逸出。

Plants get their oxygen from the air through the stomata.

植气孔从空气中获取氧气。

As part of photosynthesis, leaves open and close pores called stomata.

作为光合作用的一部分，树叶会打开和关闭它上面的细孔——叫气孔。

Reich notes that stomata also play a role in a plant's slow adaptation to wind.

再者，赖希认为，气孔对于植缓适应风力也极为重要。

Even movement of the plant, whether from wind or something else, affects how reactive stomata are.

如果植有所移动，那么因为风还其他什么原因而发生的移动，都会影响气孔的响应方式。

Every few cells, there are huge openings called stomata, like mouths, sucking in air and blowing out oxygen.

每隔几个细胞，你看到被称为气孔的巨大开口正如嘴巴般吸入空气，并吐出氧气。

And personally, I love that stomata look like creepy little mouths.

就我个人而言，我喜欢那些看起来像令人毛骨悚然的小嘴的气孔。

It's got these little pores called stomata, which open up so carbon dioxide can diffuse into the leaf.

叶子底部有些被称为气孔的小孔，气孔打开后，二氧化碳可以扩散到叶子里。

Tiny openings in the epidermis of leaves, called stomata, let in carbon dioxide gas, a key part of photosynthesis.

即叶子表皮上的小孔，称为气孔，可以让二氧化碳气体进入，这光合作用的关键部分。

And we'll find those funky little stomata on the underside of the leaf.

我们会在叶子的背面找到那些时髦的小气孔。

Meanwhile, the stomata — tiny holes that allow the exchange of gases that enable photosynthesis — remain firmly closed until night when they open.

与此同时，气孔——允许促成光合作用的气体交换的小孔——在夜晚开启前紧紧地保持关闭。

From the 1940s through the 1970s, the trees closed the tiny holes in their leaves known as stomata to protect themselves from acid rain.

从上世纪40年代到70年代，红杉树关闭了叶子上的小孔来保护自己免受酸雨侵袭。

When a plant isn't getting enough to drink, for example, tiny openings on its leaves called stomata start to close up to conserve water.

例如，当植没有足够的水喝时，叶子上被称为气孔的小开口就会开始关闭以保存水分。

After water flows from the roots to the leaves through the xylem, it can exit the plant through the tiny stomata mouths.

水木质部从根流向叶后，再细小的气孔口排出植株。

The cuticle seals up the leaf, so that the only way in and out is through the stomata, which are regulated by the guard cells.

角质层将叶片密封起来，因此进出的唯一途径气孔，气孔由保卫细胞调节。

Signals about their stressed state can pass to any neighboring plants that touch roots, so those plants know to prepare for drought by closing their stomata, too.

关于它们的压力状态的信号可以传递给任何接触根部的邻近植，所以这些植也知道关闭气孔来为干旱做准备。

Then, in 1982 or so, about 10 years after passage of the Clean Air Act that cut back on such pollution, the stomata began to reopen.

之后，在1982年左右即削减这类污染的《空气清洁法案》后10年，红杉叶孔开始重新打开。

Stop me if you've heard this before but plants need water, sunlight,   and carbon dioxide to photosynthesize, and they absorb that carbon dioxide  through pores called stomata.

如果你以前听这个，请打断我，但植需要水、阳光和二氧化碳来进行光合作用，它们气孔吸收二氧化碳。