Cucumber stem, LM
Numéro d’image : 13445210
| Cucumber stem. Light micrograph (LM). Cucumber (Cucumis sativus) is a widely-cultivated creeping vine plant in the Cucurbitaceae gourd family that bears cucumiform fruits, which are used as vegetables. Cucumber has 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 when printed at 10 centimetres wide. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Gschmeissner, Steve |
| Taille de l’image : | 4629 px × 3775 px |
| Model Release : | Non requis |
| Restrictions : | - |
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