mesophyll

meso·phyll (mes′ə fil′, mez′-)

noun

the soft tissue (green parenchyma) inside a leaf, between the lower epidermis and the upper, chiefly concerned in photosynthesis

Etymology: < ModL mesophyllum: see meso- & -phyll

mes′o·phyl′·lic adjective or mes′o·phyl′·lous

Adjective modifier

spongy: The research will use Arabidopsis as a model for species which primarily accumulate Ca in the palisade and spongy mesophyll.

Modifies a noun

cell: Here is a diagram of a plant palisade mesophyll cell: I have underlined the labels you need to know about in green.
layer: The mesophyll layer and underside of the leaf may not be destroyed may continue to function.

Noun used with modifier

palisade: Here is a diagram of a plant palisade mesophyll cell: I have underlined the labels you need to know about in green.

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