Metabolism of l-Threonic Acid in Rumex x acutus L. and Pelargonium crispum (L.) L'Hér
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منابع مشابه
Lipophilic Constituents of Rumex vesicarius L. and Rumex dentatus L.
Rumex dentatus L. and Rumex vesicarius L., of the family Polygonaceae, are edible herbs growing wild in Egypt. Their lipoid constituents were examined by both liquid chromatography/mass spectrometry (LC/MS) and by gas chromatography/mass spectrometry (GC/MS). Their essential oil compositions consisted mainly of thujene, limonene, fenchon, estragole, and anethole but at largely different concent...
متن کاملMETABOLISM OF L-ASCORBIC ACID-l-Cl4 IN MAN
n-Ascorbic acid labeled with Cl4 has been utilized in studying the metabolism of this vitamin in rats (1, 2) and guinea pigs (3, 4). In both species there is considerable conversion of carboxyl-labeled n-ascorbic acid to CO2 and significant urinary excretion of labeled oxalate. The important nutritional role of n-ascorbic acid made it desirable to study the metabolism of the labeled vitamin in ...
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Aspartic acid, like glutamic acid, occupies a central position in amino acid metabolism. In most tissues it takes part in the transamination reaction (1). In the liver and the kidney, where all amino acids undergo cleamination, the rate of this process for aspartic acid is second only to glutamic acid (2). For these reasons, one would expect the exchange of amino nitrogen of aspartic acid with ...
متن کاملThe Biosynthesis of (+)-Tartaric Acid in Pelargonium crispum.
Metabolic conversion of l-galactono-1, 4-lactone and l-ascorbic acid to (+)-tartaric acid and oxalic acid has been studied in Pelargonium crispum, cv. Prince Rupert. Experiments with specifically labeled substrates suggest a path of conversion involving cleavage of l-ascorbic acid, or a metabolic product of l-ascorbic acid, between C(2) and C(3), such that oxalic acid arises from the two carbon...
متن کاملL-Ascorbic acid degradation by bacteria. VIII. All the pathway in the L-ascorbic acid metabolism.
The medium used contained 3g of substrate, 150ml of 1/15M phosphate buffer and 150ml of sterile distilled water. 0.5g (dry weight) of the adapted cells was added to the medium and the whole was incubated at 30•‹ for 20 hours. For detecting the intermediate products, paper chromatography was chiefly used. For developing the nonvolatile acids, n-butanol-acetic acid-water (4:1:1) was used and the ...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1982
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.69.6.1365