any of the flagellated cells in sponges that maintain a flow of water through the body. A collar of protoplasm surrounds the base of the flagellum
Also called: collar cell
Word origin
C19: from Greek khoanē funnel (from khein to pour) + -cyte
choanocyte in American English
(ˈkouənəˌsait, kouˈænə-)
noun
Zoology
one of the flagellated cells lining the inner cavity of a sponge, having a collar of protoplasm encircling the base of the flagellum
Also called: collar cell
Derived forms
choanocytal
adjective
Word origin
[1885–90; ‹ Gk choán(ē) funnel + -o- + -cyte]This word is first recorded in the period 1885–90. Other words that entered Englishat around the same time include: booster, classified, roller coaster, sensitization, twofer-o- is the typical ending of the first element of compounds of Greek origin (as -i- is, in compounds of Latin origin), used regularly in forming new compounds with elementsof Greek origin and often used in English as a connective irrespective of etymology(Franco-Italian; geography; seriocomic; speedometer); -cyte is a combining form meaning “cell,” used as the final element in compound words.Other words that use the affix -cyte include: coenocyte, oocyte, solenocyte, spermatocyte, thrombocyte
Examples of 'choanocyte' in a sentence
choanocyte
Epithelial cells from damaged and adjacent intact choanocyte chambers and aquiferous canals assume mesenchymal phenotype and migrate into the mesohyl.
Ilya E. Borisenko, Maja Adamska, Daria B. Tokina, Alexander V. Ereskovsky 2015, 'Transdifferentiation is a driving force of regeneration in Halisarca dujardini (Demospongiae,Porifera)', PeerJhttps://peerj.com/articles/1211.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Regeneration and choanocyte renewal are competing and negatively correlated life-history traits, both essential to the survival of sponges.
Brittany E. Alexander, Michelle Achlatis, Ronald Osinga, Harm G. van der Geest, JackP.M. Cleutjens, Bert Schutte, Jasper M. de Goeij 2015, 'Cell kinetics during regeneration in the sponge Halisarca caerulea: how local is theresponse to tissue damage?', PeerJhttps://peerj.com/articles/820.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)