Section through stem of a marestail plant

Section through stem of a marestail plant

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Credit: CLIVE KOCHER/SCIENCE PHOTO LIBRARY

Caption: Light micrograph of a transverse section through the stem of a marestail plant, showing a single circular group of vascular tissues. The appearance of this stem is typical of that of an aquatic plant, where the amount of vascular tissue is greatly reduced. Here, a simple ring of xylem vessels (small white circles) is surrounded by a more dense band of phloem. The red band of phloem is enclosed by a single layer of pericycle cells and an outer endodermis. The surrounding chain- like tissue is the cortical parenchyma. There is no separation of the vascular tissue into bundles. Magnification: x25 at 6x6cm size.

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Keywords: aquatic plant, botany, bundle, cortical parenchyma, images, light micrograph, magnified image, marestail stem, microscopic photos, nature, phloem, plant, plants, subjects, t.s., vascular tissue, xylem vessels

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