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Home > All Images > 1995 > April > 3 Apr 1995

Images Dated 3rd April 1995

Choose from 5 pictures in our Images Dated 3rd April 1995 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Xylem and parenchyma in Rhubarb stem Featured 3 Apr 1995 Image

Xylem and parenchyma in Rhubarb stem

Rhubarb stem. Coloured scanning electron micrograph (SEM) of a longitudinal section through a rhubarb stem, Rheum rhaponticum. Cut xylem vessels are coloured brown, and parenchyma cells are coloured green. Xylem vessels are responsible for the upward transport of water and solutes in the plant, from the roots into the stem and leaves. Here, these vessels are reinforced and strengthened with spiral bands of lignin. Spiral bands allow xylem vessels to elongate and grow lengthwise. Parenchyma cells form a ground tissue in which other tissues, such as xylem, are embedded. Magnification: x290 at 5x7cm size. x1000 at 10x8ins