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Xylem and parenchyma in Rhubarb stem
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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
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Media ID 9194231
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Parenchyma Plants Stem Tracheid Vessel Xylem
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This print showcases the intricate structure of a rhubarb stem, revealing its xylem and parenchyma tissues. In this coloured scanning electron micrograph (SEM), we are granted a close-up view of a longitudinal section through the stem of Rheum rhaponticum, commonly known as rhubarb. The brown-coloured cut xylem vessels take center stage in this image, representing their crucial role in transporting water and solutes from the roots to the rest of the plant. Reinforced with spiral bands of lignin, these vessels gain strength and flexibility for elongation and growth along their length. Contrasting against the xylem vessels are vibrant green parenchyma cells that form a ground tissue within which other important tissues like xylem reside. Acting as support cells, they provide structural integrity to the stem while allowing space for essential transport systems. At 290 times magnification on a 5x7cm print or an impressive 1000 times magnification at 10x8ins size, this image captures nature's remarkable complexity at a microscopic level. It serves as a testament to both botanical beauty and scientific curiosity. Courtesy of Science Photo Library, this photograph offers botany enthusiasts an opportunity to appreciate the wonders hidden within plants while reminding us all of nature's awe-inspiring intricacy.
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