phycobilinn.
/ˌfʌɪkə(ʊ)ˈbɪlɪn/, /ˌfʌɪkə(ʊ)ˈbʌɪlɪn/, U.S. /ˌfaɪkoʊˈbɪlən/, /ˌfaɪkoʊˈbaɪlən/ Biochemistry.
Any of a group of tetrapyrrole compounds that are present in some algae as the prosthetic groups of phycocyanins and phycoerythrins. Also: (more fully phycobilin pigment) a phycocyanin or a phycoerythrin.
ΘΚΠ
the world > plants > particular plants > algae > [noun] > parts, cells, or spores
anthosperm1844
trichosporangium1857
zoogonidium1857
octospore1870
macrozoogonidium1880
parthenospore1881
akinete1884
parthenogonidium1885
parthenosperm1889
phycobilin1945
phycobiliprotein1966
phycobilisome1966
phycoplast1972
1945 E. I. Rabinowitch Photosynthesis I. xv. 417 The separation of the chromophoric groups from the carrier protein was achieved by Lemberg (1929), who introduced the name ‘phycobilins’ because of the similarity between these chromophores and the bile pigments.
1950 Jrnl. Gen. Physiol. 33 418 Light absorbed by the phycobilin pigments (phycoerythrin and phycocyanin) is utilized with good efficiency.
1962 C. Ó hEocha in R. A. Lewin Physiol. & Biochem. of Algae xxv. 421 Their prosthetic groups or chromophores are tetrapyrroles known as phycobilins. Unlike the chlorophylls, phycobilins are not readily released from associated proteins.
1971 Nature 26 Nov. 232/1 One of the first obvious effects of nitrogen starvation in blue-green algae is the disappearance of phycobilin pigments, which normally constitute about 15% of the dry weight.
2000 C. Tudge Variety of Life ii. iii. 151 All of them [sc. red seaweeds] have reddish plastids containing chlorophyll a (but not b or c) and phycobilins.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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