False col SEM of pollen grains

False col SEM of pollen grains

B786/0113 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 28.6MB

Downloadable file size: 2.5MB

Price image Pricing

Please login to use the price calculator


Caption: Coloured scanning electron micrograph (SEM) of pollen grains clustered to the stigma of the cocksfoot grass (Dactylis glomerata). Cocksfoot pollen, a summer wind-dispersed pollen, is a major cause of hay fever (Allergic rhinitis & pollenosis). Hay fever sufferers produce a sensitising antibody, immunoglobin E (IgE), which attaches to the surface of 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, bringing on the symptoms of hay fever. Magnification: x70 at 35mm size. original is bw print B786/070.

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, reproduction, reproductive, sem, stigma, type

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