Dust!

Dust?

Cedar pollen.

Cool pollen, though.

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

Cool pollen, though.

Would you like perhaps a tiny drink of ambrosia suitable only for a goddess?

Pollen is produced by the anthers of flowers.

First of all, pollen is tiny.

So all the grasses, which means all of the cereal crops, and most of the trees have wind borne pollen.

Pollen can cause severe allergic reactions.

The fossilized pollen was not of savanna vegetation.

Pollen is a flower's way of making more flowers.

Pollen can cause anaphylactic shock when inhaled.

Pollen is a flower's way of making more flowers.

But not all pollen is quite so simple looking.

Like I said, pollen carries the male sex cells.

First of all, pollen is tiny. Yes we know that.

This is a bee's leg with the pollen glommed onto it from a mallow plant.

The pollen is produced in four thecae on each anther.

This is a bee's leg with the pollen glommed onto it from a mallow plant.

Pollen is tiny. It gets on to things, and it sticks to them.

The stamens are also yellow and the anthers shed abundant yellow pollen.

It carries male sex cells from one flower to another.

Pollen is tiny. It gets on to things, and it sticks to them.

Its main food is insects or berry or nectar or pollen.

It was involved in the rush to start uranium mining in the Ambrosia Lake region of New Mexico in the 1950s.

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.

Fourth, pollen from GM crops may contaminate organically produced food.

This is the Monterey Pine, which has little air sacks to make the pollen carry even further.

And it isn't just bright flowers that have pollen it's also trees and grasses.

This is the Monterey Pine, which has little air sacks to make the pollen carry even further.

This is some pollen embedded in a cotton shirt, similar to the one that I'm wearing now.

Pollen from the fertile male flowers is eaten by the beetles throughout the night.

This is some pollen embedded in a cotton shirt, similar to the one that I'm wearing now.

Flowers are weakly protandrous in that the anthers precede the stigma in maturity and pollen is shed within a few hours of the flower opening.

They build up a static electric charge and the pollen jumps on them and helps spread that pollen from bloom to bloom.

A sentence is like a flower its meaning is pollen. A translator is like a bee translation is just pollination between different plants it carries life...

They'd looked at dental calculus under a microscope, and what they had found was things like pollen and plant starches, and they'd found muscle cells from animal meats and bacteria.

Now, pollen from plants, which are wind dispersed like trees and grasses and so on tend to cause the most hay fever.

The culprit is pollen from trees, in particular the Japanese cedar or sugi (杉, Cryptomeria japonica) and Japanese cypress or hinoki (檜, Chamaecyparis obtusa).

So, these are the routes that these receptors are going to take to get to the respiratory centre but how do these work exactly, these mechanoreceptors lets take an example. Lets say you're walking and you inhale some pollen.

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?

For example, chemical pesticide or pollen from genetically engineered plants wafting from an adjacent field onto an organic crop does not affect the harvest s status.

But as the cedar and cypress trees (and their pollen) are unlikely to be going anywhere in the near future, Japan can expect another round of hay fever misery next year.