mesophyll

[ mez-uh-fil, mes-, mee-zuh-, -suh- ]

noun

, Botany.

1. the parenchyma, usually containing chlorophyll, that forms the interior parts of a leaf.

mesophyll

/ ˈmɛsəʊˌfɪl /

noun

1. the soft chlorophyll-containing tissue of a leaf between the upper and lower layers of epidermis: involved in photosynthesis

mesophyll

/ mĕz′ə-fĭl′ /

1. The tissues of a leaf that are located in between the layers of epidermis and carry on photosynthesis, consisting of the palisade layer and the spongy parenchyma . Most mesophyll cells contain chloroplasts.

Derived Forms

• ˌmesoˈphyllic, adjective

Other Words From

• meso·phyllic meso·phyllous adjective

Word History and Origins

Origin of mesophyll¹

First recorded in 1830–40; meso- + -phyll

Example Sentences

The sensors can enter leaves through pores called stomata and take up residence in the mesophyll -- the layer where most photosynthesis takes place.

From Science Daily

Additionally, the C4 photosynthesis pathway starts in mesophyll cells that comprise the surface of the leaf, and then moves into bundle sheath cells that are deeper in the plant.

From Science Daily

In C3 plants, reactive oxygen species from O3 degradation can damage the mesophyll cells where photosynthesis occurs.

From Science Daily

Other characteristic features of the SIET4 mutants were diminished roots and shoots, abnormal Si deposition in leaf mesophyll cells, and the induction of many stress response genes.

From Science Daily

In C4 leaves, mesophyll cells radiate out around bundle sheath cells like spokes on a wheel, whereas in C3 leaves they are stacked on top of one another in a flat arrangement.

From Nature