An allergy represents sensitivity to a substance normally harmless, which did not bother to most of the people, the allergen or foreign substance that causes a reaction, can be a food, dust particles, a drug, poison of insects, mold spores, as well as the pollen and people with allergies often have a sensitivity to more than a substance.
The plants produce microscopic grains round or oval called pollen to reproduce and in some species, the plant uses the pollen from their own flowers to fertilize itself, but there are other types of cross-pollination, in which to produce the fertilization pollen must be transferred from the flower of a plant to another plant in the same species.
Being the insects that make this work for certain plants with flowers, while other plants are based on the transport of movies, transforming it last situation in the responsible to the allergic reactions. (more…)



