Rice stem, LM
Bildnummer 13445231
| Rice stem. Light micrograph (LM). Rice is the seed of the grass species Oryza sativa. As a cereal grain, domesticated rice is the staple food for over half of the world's human population. Rice has a monocot 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 (pith and cortex) develops support cells to hold the young plant upright. The monocot stem has a random arrangement of vascular bundles with more of the bundles located toward the stem periphery than in the center. Magnification: x10 at 10 cm. wide. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Gschmeissner, Steve |
| Bildgröße: | 4466 px × 4572 px |
| Modell-Rechte: | nicht erforderlich |
| Restrictions: | - |
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