Iris Root
by Dr Keith Wheeler/science Photo Library
Title
Iris Root
Artist
Dr Keith Wheeler/science Photo Library
Medium
Photograph - Photograph
Description
Iris root. Light micrograph of a section through the root of an Iris plant (Iris germanica) showing a vascular cylinder. The cylinder is comprised of a central cluster of parenchyma cells (red) surrounded by vascular bundles (red and blue) and the endodermis (red ring). The largest vessels seen here are metaxylem, part of the xylem tissue in the vascular bundles. Xylem transports water and mineral nutrients from the roots throughout the plant, while the phloem (dark blue), the other component of the bundles, transports carbohydrates and plant hormones. Magnification: x100 when printed 10 centimetres wide.
Uploaded
October 2nd, 2019
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