The little hole in the middle, we'll come to a bit later, but that's for the pollen tube to come out later on. A very tiny tube.

That little hole in the middle there is for the pollen tube, and when the pollen finds its special female spot in another Morina flower, just on the right species, what happens?

Bee pollen, pollen collected from bees, is considered a health food by some people.

The stigma receives pollen and it is on the stigma that the pollen grain germinates.

It's heeeeeeere... the pollen!!!

Tracking the 'Cedar Pollen Front'

The Annual Japanese Agony of Cedar Pollen

Jonathan Drori Every pollen grain has a story

Thirty Years of Test Tube Babies

A cedar tree releases clouds of allergy inducing pollen.

These are little bits of individual grain of pollen there and there, and here is a what you see as one little yellow dot of pollen, when you look in a microscope, it's actually made of thousands of little grains of pollen.

She recorded this message on You Tube.

It is a laboratory tube used much in the same way as a boiling tube except not being as large and thick walled.

When not in use, the tube is capped.

It is coloured light blue on the Tube map.

Hyposensitization treatments, where patients are given small doses of pollen extracts via injection or drops into their mouth to help prevent the body from overreacting to pollen, are also increasingly popular.

Members of the group have tricolpate pollen, or forms derived from it.

The tube itself is made in a variety of designs.

He starts with a plastic tube, probably used for sewage work.

This is to ensure the tube is not in the lungs.

Most pollen that causes hay fever for us is from plants that use the wind to disseminate the pollen, and that's a very inefficient process, which is why it gets up our noses so much.

At night they get covered in pollen, which showers down over them, and then the bristles that we saw above, they sort of wilt and allow all these midges out, covered in pollen fabulous thing.

Now, to do that, we need to be able to bring a camera and instruments in together through one small tube, like that tube you saw in the laparoscopy video.

Diet In the wild, lorikeets feed on nectar and pollen from plants and flowers.

If you look at this, just the tube, it is quite bright.

We are running a global experiment while living in a test tube.

Instead the abdomen is drawn out in the shape of a tube.

On the bright side, it's a boon for the companies that produce pollen filtering masks.

So all you do is it's a very kind of provocative statement this old bicycle tube and this old plastic unclear This filling cap will go very snugly into an old bicycle tube.

It'll approximate that shape. We do this for real in the test tube.

Research shows that hay fever is exacerbated when pollen mixes with other pollutants in the air, another reason why the highest hay fever rates are found in cities, even though they typically have lower pollen counts than rural areas.

Pollen transfer has been suggested to occur by body surface transport on mouthparts and head surfaces like that in bee flies and hover flies, but no such associated pollen has been found, though the insects were preserved in amber.

When we synthesize it, it comes single stranded, so we can take the blue strand in one tube and make an orange strand in the other tube, and they're floppy when they're single stranded.

The insects and other species can take the pollen, transfer it directly to where it's required.

In cities, pollen particles fall on concrete and asphalt rather than being absorbed by the soil.

At least 24 native species from 17 plant families are targeted for nectar or pollen consumption.

Then when you give those trained flies the chance to choose between a tube with the shock paired odor and another odor, it avoids the tube containing the blue odor that was paired with shock.

... fixed a rubber tube to the metal tap which shone just above my face.

The weight of the mercury creates a vacuum in the top of the tube.

The introduction of gas takes place at the end beginning of the tube system.

each of us, in fact, with a story to tell from the pollen fingerprint that's upon us.

Many species are diurnal and visit flowers for pollen and nectar, or to browse on the petals.

The pollen of Texas wild rice can only travel about 30 inches away from a parent plant.

There are many variations on this basic design, with some ICS collectors comprising several smaller water containers and even including evacuated glass tube technology, a type of ICS system known as an Evacuated Tube Batch (ETB) collector.

And I had a little tube with alcohol in it to send to the geneticists.