News tagged with pollen

Related topics: allergy

Forecasting pollen in the atmosphere

People suffering from pollen allergy may benefit from efforts to model pollen levels across Europe. But actual observations and personalised data are also essential.

Jun 27, 2014
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So long snow, hello pollen

(HealthDay)—Although it still feels like winter in many parts of the United States, it's time to prepare for spring allergies, an expert says.

Apr 06, 2014
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Managing seasonal allergies

(HealthDay)—Although spring arrived late this year in parts of the United States, the summer allergy season will still be strong, according to a sinus expert at the University of Alabama at Birmingham.

Jun 17, 2013
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Pollen

Pollen is a fine to coarse powder containing the microgametophytes of seed plants, which produce the male gametes (sperm cells). Pollen grains have a hard coat that protects the sperm cells during the process of their movement from the stamens to the pistil of flowering plants or from the male cone to the female cone of coniferous plants. When pollen lands on a compatible pistil or female cone (i.e., when pollination has occurred), it germinates and produces a pollen tube that transfers the sperm to the ovule (or female gametophyte). Individual pollen grains are small enough to require magnification to see detail.

This text uses material from Wikipedia licensed under CC BY-SA