单词 | phycobilin pigment |
释义 | > as lemmasphycobilin pigment 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. < as lemmas |
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