Definition of Pollen grain. Meaning of Pollen grain. Synonyms of Pollen grain

Here you will find one or more explanations in English for the word Pollen grain. Also in the bottom left of the page several parts of wikipedia pages related to the word Pollen grain and, of course, Pollen grain synonyms and on the right images related to the word Pollen grain.

Definition of Pollen grain

Pollen grain
Pollen Pol"len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] --Bailey. 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See Flower, and Illust. of Filament. Pollen grain (Bot.), a particle or call of pollen. Pollen mass, a pollinium. --Gray. Pollen sac, a compartment of an anther containing pollen, -- usually there are four in each anther. Pollen tube, a slender tube which issues from the pollen grain on its contact with the stigma, which it penetrates, thus conveying, it is supposed, the fecundating matter of the grain to the ovule.

Meaning of Pollen grain from wikipedia

- Pollen is a powdery substance produced by most types of flowers of seed plants for the purpose of ****ual reproduction. It consists of pollen grains (highly...
- the spores of fungi, ferns, bacteria, and the growth of the pollen tube from the pollen grain of a seed plant. Germination is usually the growth of a plant...
- stage in the plant life cycle. The pollen tube acts as a conduit to transport the male gamete cells from the pollen grain—either from the stigma (in flowering...
- work. In angiosperms, after the pollen grain (gametophyte) has landed on the stigma, it germinates and develops a pollen tube which grows down the style...
- A pollen count is a measurement of the number of pollen grains in a given volume of air. Pollen counts, and forecasts of pollen conditions, are routinely...
- tricolpate pollen grains was initially seen in morphological studies of shared derived characters. These plants have a distinct trait in their pollen grains of...
- It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male...
- resistant to decay. It is possible to identify a plant species from its pollen grain. The identified plant community of the area at the relative time from...
- Earlier pollen researchers include Früh (1885), who enumerated many common tree pollen types, and a considerable number of spores and herb pollen grains. There...
- mature pollen grain varies between the gymnosperm orders. Cycadophyta have 3 celled pollen grains while Ginkgophyta have 4 celled pollen grains. Gnetophyta...