pyrenoid

[ pahy-ree-noid, pahy-ruh-noid ]

Phonetic (Standard)IPA

noun

a spherical protein structure found within chloroplasts of certain algae and hornworts.

pyrenoid

/ ˈpaɪrəˌnɔɪd /

any of various small protein granules that occur in certain algae, mosses, and protozoans and are involved in the synthesis of starch

C19: from pyrene ² + -oid

The pyrenoid is evidently concerned in the formation of the chromatophore, or in its division.

Schmitz states that the chromatophore is thickened in the middle and contains a pyrenoid.

A pyrenoid lies in a fold of the chromatophore on the dorsal part.

April 25, 2024firkin

[fur-kin ]

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