Stem vascular arrangement, LM

Référence de la vidéo 12371156
Stem vascular arrangement. Animated light micrograph of sections of monocot and dicot stems. Vascular tissue occurs in long strands called vascular bundles. These bundles are arranged within the stem of dicots to form a cylinder (bottom image), appearing as a ring of spots when you cut across the stem. In monocots, these bundles appear scattered through the stem, with more of the bundles located toward the stem periphery than in the center. This arrangement is unique to monocots and some of their closest relatives among the dicots.
Licence : Droits gérés
Crédit : Science Photo Library / Gschmeissner, Steve
Model Release : Non requis
Property release : Non requis
Durée : 12 Secondes
Aspect ratio : 16/9
Restrictions : -

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