mesophyll

American  

[mez-uh-fil, mes-, mee-zuh-, -suh-] / ˈmɛz ə fɪl, ˈmɛs-, ˈmi zə-, -sə- /

noun

Botany.

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

---

mesophyll British  

/ ˈmɛsəʊˌfɪl /

noun

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

---

mesophyll Scientific  

/ 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.

---

Other Word Forms

• mesophyllic adjective
• mesophyllous adjective

Etymology

Origin of mesophyll

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

Example Sentences

Around 95% of plants use C3 photosynthesis, in which mesophyll cells -- green spongy cells that live inside leaves -- turn light, water, and carbon dioxide into plant-powering sugars.

From Science Daily • Nov. 20, 2024

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 • Nov. 13, 2023

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 • Nov. 8, 2023

Pyruvate is also produced in this step and moves back into the mesophyll cell, where it is converted into PEP, a reaction that converts ATP and Pi into AMP and PPi.

From Textbooks • Jan. 1, 2015

The mesophyll of Pinus and Cedrus is characterized by its homogeneous character and by the presence of infoldings of the cell-walls.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" by Various