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Titolo:
THE EFFECT OF LIGHT ON THE ACCUMULATION OF LIPIDS IN SEEDS
Autore:
INANAGA S; YANAGIGAWA T; NAKA Y; YAMANOKUCHI K;
Indirizzi:
KAGOSHIMA UNIV,FAC AGR KAGOSHIMA 890 JAPAN
Titolo Testata:
Soil Science and Plant Nutrition
fascicolo: 4, volume: 42, anno: 1996,
pagine: 845 - 852
SICI:
0038-0768(1996)42:4<845:TEOLOT>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
METABOLISM;
Keywords:
DIACYLGLYCERIDE; LIGHT; LIPID; SEEDS OF LEGUMINOUS PLANTS; TRIACYLGLYCERIDE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
S. Inanaga et al., "THE EFFECT OF LIGHT ON THE ACCUMULATION OF LIPIDS IN SEEDS", Soil Science and Plant Nutrition, 42(4), 1996, pp. 845-852

Abstract

To investigate the effects of light on the accumulation of lipids in seeds, fruits of both peanut and soybean plants were allowed to grow under different types of light conditions (natural, red, blue, green, or far-red light) and in darkness. Irradiation with each type of light from the 20th or 30th day, except for green light from the 30th day, resulted in lower dry weight of peanut seeds. The peanut seeds irradiated with natural, blue or far-red light from the 30th day onward contained a smaller amount of lipids, lower levels of triacylglycerides (TG), and higher levels of total sugar and diacylglycerides (DG), than theseeds grown in darkness. In the case of soybean seeds grown in darkness, the lipid content increased, but the total sugar and protein contents decreased. Exposure of soybean seeds to far-red light did not result in an increase in the lipid content. In vitro, C-14-glycerol-3-phosphate was converted to DG rather than to TG under irradiation with light compared with dark conditions. In contrast, the effect of light on the incorporation of C-14-oleoyl-CoA into TG was not appreciable. These findings suggest that the accumulation of lipid in the seeds of leguminous plants is depressed by Light, with far-red light affecting mostthe accumulation of Lipids, which may regulate the synthesis of TG via DG from glycerol-3-phosphate.

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Documento generato il 19/09/20 alle ore 09:26:43