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Parenchyma cells can be elongated. These are from lettuce hypocotyls. There are several superimposed layers in this image. These cells look spherical in cross-section. | ||
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Palisade cells from Hawaiian Silver Sword leaves. Note the large chloroplasts. Photosynthetic Parenchyma can be called Chlorenchyma. This is easier to say that Photosynthetic Parenchyma. Palisade cells are columnar Chlorenchyma. | ||
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Parenchyma cells can be branched. These cells branch in 2-Dimensions. Note the thin, translucent primary cell wall (stained with Toluidine Blue). | ||
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This is another example of Parenchyma cells that are branched in 2-D (stained with Toluidine Blue). These are from the stem of a sedge. Parenchyma tissue like this, that contains lots of intercellular spaces is called Aerenchyma. Aerenchyma is typically found in semi-aquatic plants but it shows up in some unusual places, like Pineapple leaves. | ||
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These Stellate Parenchyma cells are branched in 3-Dimensions. These are form air cavities in Cana petioles (see below). These were stained with Toluidine Blue. Spongy mesophyll cells may be branched in 3-D. I wonder what function they serve in these petioles & leaves? | ||
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Cross-section of Cana petiole. The Stellate Parenchyma reside in the two large air cavities that are seen on the left and right sides of the image. | ||
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Stellate Parenchyma from air spaces in the Mesophyll of Pineapple leaves. I have a soft spot for stellate parenchyma!!!! | ||
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This is Aerenchyma from the stem of Papyrus (Cyperus papyrus) stained with IKI. Are the individual parenchyma cells branched? Examine the large linked image. What are the black bodies in this image? | ||
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