Thursday, April 30, 2009

What is the difference between anther and pollen?

on a diagram i have there is an arrown pointing to the top of the filament adn it says anther and also pollen. is it that the anther has the pollen inside it?

What is the difference between anther and pollen?
The stamen is the male organ of a flower. Each stamen generally has a stalk called the filament, and, on top of the filament, an anther.





ANTHER





The anther is usually composed of four pollen sacs, which are called microsporangia. The development of the microsporangia and the contained haploid spores (called pollen-grains) is closely comparable with that of the microsporangia in gymnosperms or heterosporous ferns. The pollen is set free by the opening (dehiscence) of the anther, generally by means of longitudinal slits, but sometimes by pores, as in the heath family (Ericaceae), or by valves, as in the barberry family (Berberidaceae). It is then dropped, or carried by some external agent — wind, water or some member of the animal kingdom — onto the receptive surface of the carpel of the same or another flower, which is thus pollinated.





POLLEN





Pollen is produced in the microsporangium (contained in the anther of an angiosperm flower, male cone of a coniferous plant, or male cone of other seed plants). Pollen grains come in a wide variety of shapes, sizes, and surface markings characteristic of the species (see photomicrograph at right). Most, but certainly not all, are spherical. Pollen grains of pines, firs, and spruces are winged. The smallest pollen grain, that of the Forget-me-not plant (Myosotis sp.), is around 6 µm (0.006 mm) in diameter. The study of pollen is called palynology and is highly useful in paleontology, archeology, and forensics.
Reply:The anther is the structure which holds all the pollen grains till they get matured.diaghram will point both towards it but actually pollengrains are inside.
Reply:The anther is the part that makes the pollen.
Reply:The pollen is made by the anther
Reply:The anther is a container at the top of the filament. (the stamen is made up of the filament and the anther). The pollen is formed inside the anther and is released at maturity.


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