Ovary with ovules of the opium poppy
Numéro d’image : 11538781
| False-colour scanning electrom micrograph (SEM) of the ovary of the opium poppy,Papaver somniferum,showing an ovule (egg) attached by a stalk or funicle to the capsule wall. Each ovule consists of a central mass of material called the nucellus,within which is the embryo sac containing a large egg cell. The nucellus is surrounded by two layers of tissue,the integuments (skin,seen here),except for a small passageway called the micropyle,through which the male gamete gains access to the egg cell. If fertilized,each ovule becomes a seed,the integuments becoming the outer seed coat. Magnification: X35 at 35mm size. Coloured pink. Original is BW print B765/006 | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
| Taille de l’image : | 3820 px × 4843 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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