Radish stem, LM
Numéro d’image : 13445254
| Radish stem. Light micrograph (LM). The radish (Raphanus raphanistrum subsp. sativus) is an edible root vegetable of the family Brassicaceae. Radishes are grown and consumed throughout the world, being mostly eaten raw as a salad vegetable with a pungent flavor. Radishes have a dicot stem vascular arrangement. Vascular tissues transport water and dissolved substances inside the plant and helps support the stem. The two types of vascular tissue are xylem and phloem. Xylem carries water and dissolved ions from the roots to stems and leaves. Phloem carries dissolved sugars from the leaves to all other parts of the plant. Xylem has two kinds of conducting cells, tracheids and vessel elements. Ground tissue of the stem (called pith and cortex) develops support cells to hold the young plant upright. The dicot stem has a distinct ring of vascular bundles. Magnification: x10 at 10 cms. wide. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Gschmeissner, Steve |
| Taille de l’image : | 4572 px × 4628 px |
| Model Release : | Non requis |
| Restrictions : | - |
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