The powdery grains produced by plant stamens containing the male sex cells.
Powder-like fertilising agent carried in the anthers of phanerogams [preferred term].
A mass of microspores in a seed plant, appearing usually as a fine dust.
The spheroidal structures produced in an anther.
The fertilizing agent of a plant, formed in the anther cells. It is varied in form, but usually granular.
Spores, borne by the anthers, that contain the male germ cells.
Minute yellow dust-like granules, containing the male sexual cells, that are produced inside the anthers of stamens. When pollen grains fall on a stigma, t hey germinate to produce long but microscopic pollen-tubes which carry the male nuclei (the equivalent of sperms in animals) to the eggs to fertilize them.
The tiny grains of plant substance containing DNA which unite with the embryo seeds contained in the ovary to create the fruit and hence a new generation of flowering plants—a process termed pollination. The transfer is usually earned out by insects, but can also be carried out by nectar-eating birds and sometimes by the wind.
The fine, dust-like grains discharged from the male part of the flower and typically necessary for seed production.
A powdery substance consisting of male gametes from plants, produced by the flower stamens, which floats in the air in spring and summer, and which causes hay fever.
The tiny grains of plant substance containing genetic material, which unite with the embryonic seeds contained in the ovary to create the fruit and hence a new generation of flowering plants—a process termed pollination. The transfer is usually carried out by insects, but can also be carried out by nectar-eating birds and sometimes by the wind.
An airborne, fertilizing agent that carries a plant’s male genetic material to a female plant. Pollen can be inhaled, producing the symptoms of allergies such as hay fever and asthma in susceptible people. The pollens that are most powerful at producing allergic symptoms are those of the grass family, ragweeds, and birch and oak trees.
The microspores of a seed plant that develop in the anther at the tip of the stamen. Each pollen grain develops a pollen tube and constitutes the male gametophyte. Within it develops a tube nucleus and two sperm nuclei, which are the male reproductive cells. Many airborne pollens are allergens.
The powdery substance produced by the anthers of a flowering plant and by the male cones of coniferous plants, consisting of numerous fine grains the male fertilizing agents.
Tiny particles generated by the male reproductive organs of plants to fertilize the female counterparts. Pollen from flowers, grasses, and certain other plants can trigger allergic responses in humans and lead to conditions like hay fever.
Tiny and frequently yellow or orange in color, this substance contains the male reproductive cells of the flower, which fertilize the female ovules to produce seeds.