Coloured scanning electron micrograph (SEM) of pollen grains from the flower of silver birch (Betula pendula). The outer wall of the grain (exine) has three pores. Silver birch pollen causes an allergic reaction in around a quarter of hay fever sufferers. Magnification: x3,200 when printed at 15 centimetres wide.
| px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP25735545
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
Same folder images:
Loading