bild
GRASS POLLEN DISPERSAL
Grass pollen dispersal by the wind. This grass is cocksfoot grass (Dactylis glomerata). The pollen grains (upper left) have been shaken loose from the plant by the wind, and will be carried away by the wind to pollinate other D. glomerata plants. The pollen grains contain the male gametes (sex cells). During the flowering season, billions of grains of pollen are spread on the wind, which causes hayfever symptoms in those who are allergic to pollen grains and other wind-borne allergens. (KEYSTONE/SCIENCE PHOTO LIBRARY/EYE OF SCIENCE)
Instruktionen
COPYRIGHTPFLICHTIG All moral rights asserted. Recolouring or alterationof the image is prohibited without permission.
Lizenz
Rights Managed
Erstellungsdatum
20051215
Ort
Credit
KEYSTONE
Source
SCIENCE PHOTO LIBRARY SPL
Byline
EYE OF SCIENCE
Grösse
2055 x 3090 px
Dateityp
JPEG