Pollen Definition–noun | 1. | the fertilizing element of flowering plants, consisting of fine, powdery, yellowish grains or spores, sometimes in masses. | –verb (used with object) |
From Dictionary
Related topics from Britannicapollen
a mass of microspores in a seed plant appearing usually as a fine dust. Each pollen grain is a minute body, of varying shape and structure, formed in the anther, or male apparatus, in seed-bearing ...
Pollen, Daniel
Irish-born physician, prime minister of New Zealand (1875-76), and a public figure who combined business and politics with his profession and worked for such liberal causes as the enfranchisement of ...
agricultural technology
Odours from animal concentrations are recognized as being highly undesirable to air quality. Where these operations exist contiguous to urbanized areas, public reaction is usually unfavourable. ...
pollination
conifer
Like Ginkgo, but unlike at least some cycads and gnetophytes, all conifers are pollinated by wind. Pollen may be produced in enormous quantities, particularly by species of true pine (Pinus), which ...
geology
Palynology deals with plant spores and pollen that are both ancient and modern and is a branch of paleobotany. It plays an important role in the investigation of ancient climates, particularly ...
gymnosperm
Gymnosperms differ from angiosperms most obviously on the basis of the naked-seed habit in the former and the enclosure of seeds within a fruit in the latter. The pollen grain of gymnosperms, when ...
allergen
substance that in some persons induces the hypersensitive state of allergy and stimulates the formation of reaginic antibodies. Allergens may be naturally occurring or of synthetic origin and ...
evolution
Copulation is often impossible between different animal species because of the incompatible shape and size of the genitalia. In plants, variations in flower structure may impede pollination. Two ...
pollination
Although pollen grains can be made to germinate in aqueous sugar solutions, water alone in most cases has a disastrous effect on them. Accordingly, only a very few terrestrial plants, such as the bog ...
|
Related topics from Ask NewsLymph Node Shots Tested for Grass Pollen Allergy
Lymph Node Shots Tested for Grass Pollen Allergy
MU researcher identifies pollen proteins...
Checkbiotech - Found Nov. 5, 2008
... mates in the form of pollen grains. When pollen grains arrive, an introduction occurs through a 'conversation' between the pollen (the male...
|
|
Peak Pollen Season Is Now - Australia
Medical News Today - Found Nov. 3, 2008
... of the year when plant-based and pollen-related asthma is at its peak," Prof Wilson explained. "Then as summer progresses, pollen distribution...
|
|
Lymph Node Shots Tested for Grass Pollen Allergy
News-Journal - Found Nov. 11, 2008
TUESDAY, Nov. 11 (HealthDay News) -- A Swiss-led study appears to point the way toward a faster, safer and less painful treatment for grass pollen
|
|
Lymph Node Shots Tested for Grass Pollen Allergy
Grand Junction Daily Sentinel - Found Nov. 11, 2008
TUESDAY, Nov. 11 (HealthDay News) -- A Swiss-led study appears to point the way toward a faster, safer and less painful treatment for grass pollen
|
|
Lymph Node Shots Tested for Grass Pollen Allergy
Springfield News Sun - Found Nov. 11, 2008
TUESDAY, Nov. 11 (HealthDay News) -- A Swiss-led study appears to point the way toward a faster, safer and less painful treatment for grass pollen
|
|
Pollen on shoe link to murder
Romford Recorder - Found Nov. 7, 2008
Mark Tredinnick A DRUG dealer is linked to the machine-gun murder of a bodybuilder by pollen grains found on his shoes, a court has heard.Mark
|
|
Pollen proteins that provide insight into the fertilization process
Huliq.com - Found Oct. 24, 2008
... in the form of pollen grains. When pollen grains arrive, an introduction occurs through a âconversationâ between the pollen (the male...
|
|
Fossil pollen reveals looking at the past
Tampa Bay Newspapers - Found Oct. 24, 2008
INELLAS COUNTY - Fossil pollen is often called the fingerprint of ancient plants.
|
|
|
Related topics from Technorati |
|
|
|
