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pyrenoid

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

noun

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


pyrenoid

/ ˈpaɪrəˌnɔɪd /

noun

  1. any of various small protein granules that occur in certain algae, mosses, and protozoans and are involved in the synthesis of starch
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of pyrenoid1

C19: from pyrene ² + -oid
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Example Sentences

In many algae, Rubisco is densely packed into a microcompartment called the pyrenoid, which plays an important role in the CO2 accumulation in aquatic environments.

Some of these proteins are apparently involved in pyrenoid construction and CO2 concentration.

Additional abbreviations: C, carbohydrate; PY, pyrenoid.

From Nature

Additional abbreviations: C, carbohydrate; PY, pyrenoid.

From Nature

C, a complete cell. n, nucleus. py. pyrenoid.

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