Ivy stem. Coloured scanning electron micrograph (SEM) of the surface of an ivy plant stem. The star- shaped trichomes,a type of modified hair cell,may function in preventing water loss,or in defending the plant against insects. Several stomata are visible,for example in a line from lower left to centre. These pores allow for gaseous exchange between the air and the plant's cells. There are fewer stomata on plant stems than on the leaves | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 2376 px × 1696 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |