phaeoplastn.
/ˈfiːə(ʊ)plɑːst/, /ˈfiːə(ʊ)plast/, U.S. /ˈfeɪəˌplæst/ Botany.
A chromoplast of a brown alga.
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the world > plants > particular plants > algae > [noun] > brown algae and parts
propagulum1807
phaeoplast1886
brown algae1902
1886 Jrnl. Royal Microsc. Soc. 6 640 For the chromoplasts of the Phæophyceæ the author proposes the term phæoplasts.
1904 Amer. Naturalist 38 378 The chromatophores of the higher brown Algæ (Phæophyceæ)..have the discoid form characteristic of chloroplasts. They might be called phæoplasts..if one wished to classify plastids according to their color.
1952 W. O. James Elem. Plant Biol. (rev. ed.) ix. 127 Each cell of this layer [sc. the palisade layer in the frond of a fucus]..contains a central vacuole and a peripheral layer of cytoplasm containing the nucleus and packed with phæoplasts.
1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) ii. 161/1 Brown algae contain a distinct set of photosynthetic pigments: their plastids, called phaeoplasts, contain chlorophylls a and c, but never b.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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