Stomata in a Green Onion Leaf, ESEM

Stomata in a Green Onion Leaf, ESEM

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Caption: Colour-enhanced ESEM (Environmental Scanning Electron Micrograph) of stomata in a hollow green onion (Allium sp.) leaf. Scallion, green onion, or spring onion, is one of various Allium species, all of which have hollow green leaves (like the common onion), but which lack a fully developed root bulb. Stomata are openings in the leaves which facilitate gas exchange and regulate water evaporation from the leaves. No fixation, dehydration, gold coating was used to produce this image. Image width: 204.3 micrometers. Magnification: 490x if the image is printed 10 cm wide.

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Keywords: allium species, colorization, colorized, colour enhanced, colour enhancement, electron micrograph, em, evaporation, false colour, gas exchange, hollow, imaging, leaf, leaves, micrograph, microscopy, onion, openings, regulation, scallion, scanning electron micrograph, sem, slits, spring onion, stoma, stomata

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