SEM of pollen grain from cocksfoot grass

SEM of pollen grain from cocksfoot grass

B786/0077 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Price image Pricing

Please login to use the price calculator


Caption: Scanning electron micrograph of a pollen grain from cocksfoot grass, Dactylis glomerata, showing a germinating pore from which a pollen tube emerges. Cocksfoot pollen, a summer grass pollen dispersed by the wind, is a major cause of hay fever (medical term Allergic rhinitis & pollenosis). Sufferers produce a sensitising anti- body, immunoglobin E (IgE),which attaches to cells in the nose & eyes. It reacts with inhaled pollen(an allergen) causing the release of various chemicals including histamine.Histamine causes the mucous membranes of the nose, eyes & throat to swell & become inflamed, causing the symptoms of hay fever. Mag: X3700 at 10x8 inch, X530 at 35mm.

Release details: Model release not required. Property release not required.

Keywords: allergic rhinitis, botany, cause, cocksfoot, cocksfoot grass, dactylis glomerata, grass, hay fever, hayfever, nature, plant, plants, pollen, pollen pore, reproduction, reproductive, sem, type

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.