carotenoids
Accessory lipophilic photosynthetic pigments in plants and bacteria, including carotenes and xanthophylls; red, orange or yellow, with broad absorption peaks at 450-480nm. Act as secondary pigments of the light-harvesting system, passing energy to chlorophyll and as protective agents, preventing photoxidation of chlorophyll. Found in chloroplasts and also in plastids in some non-photosynthetic tissues, eg. carrot root.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • carotenoids — carotenoids. См. каротеноиды. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • carotenoids — 1913, from Ger. carotinoïde (1911), from carotin (see CAROTENE (Cf. carotene)) + oid …   Etymology dictionary

  • carotenoids — (kah rot e noids) Pigment molecules, usually yellowish in color, that are often used to aid chlorophyll in trapping light energy during photosynthesis …   Dictionary of microbiology

  • carotenoids — Generic term for a class of carotenes and their oxygenated derivatives (xanthophylls) consisting of 8 isoprenoid units (thus, tetraterpenes) joined so that the orientation of these units is reversed at the center, placing the two central methyl… …   Medical dictionary

  • carotenoids — n. any red or yellow pigment which is similar to carotene and found in plants and animals …   English contemporary dictionary

  • provitamin A carotenoids — carotenoids, particularly the carotenes and cryptoxanthin, that can be converted to vitamin A in the body; they are a major source of vitamin A in a normal diet …   Medical dictionary

  • Colorless carotenoids — The colorless carotenoids, phytoene and phytofluene, are natural carotenoids that lack visible color due to their lower number of conjugated double bonds on the C40 carbon backbone of the molecule. This structure allows them to absorb light in… …   Wikipedia

  • Carotenoid — Carotenoids are organic pigments that are naturally occurring in chromoplasts of plants and some other photosynthetic organisms like algae, some types of fungus and some bacteria.There are over 600 known carotenoids; they are split into two… …   Wikipedia

  • каротеноиды — carotenoids каротеноиды. Желтые, оранжевые или красные пигменты в основном растительного происхождения, являются полиненасыщенными углеводородами терпенового ряда; к К. относятся каротин, ксантофил и др. (Источник: «Англо русский толковый словарь …   Молекулярная биология и генетика. Толковый словарь.

  • Carotenoderma — SignSymptom infobox Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD10|L|81|9|l|80 ICD9 = ICD9|709.00 ICDO = OMIM = MedlinePlus = eMedicineSubj = derm eMedicineTopic = 789 MeshID = Carotenoderma (also carotenodermia) is the name given to the… …   Wikipedia

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