Nucleotide metabolism in germinating seeds. The ribonucleic acid of Pisum arvense.

نویسندگان

  • G R Barker
  • J A Hollinshead
چکیده

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منابع مشابه

The degradation of ribonucleic acid in the cotyledons of Pisum arvense.

1. A ribonuclease has been partially purified from the cotyledons of germinating seed of Pisum arvense. 2. The enzyme degrades ribopolynucleotides to adenosine 3'-phosphate, guanosine 3'-phosphate and the cyclic nucleotides cytidine 2',3'-phosphate and uridine 2',3'-phosphate; no resistant ;core' remains. 3. The activity of RNA-degrading enzymes in the cotyledons increases to a maximum during t...

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Carbamoyl phosphate synthetase activity from the cotyledons of developing and germinating pea seeds.

Carbamoyl phosphate synthetase activity was measured in partially purified extracts from cotyledons of developing and germinating seeds of Pisum sativum L. Some properties of the enzyme were established. During cotyledon development, the activity initially increased sharply but decreased during further development. The activity from germinating seeds was only one-tenth of the maximum activity a...

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Nutritional assessment of raw and germinated pea (Pisum sativum L.) protein and carbohydrate by in vitro and in vivo techniques.

OBJECTIVE We assessed the effect of germinating Pisum sativum L. variant Arvense cv. Esla for 3 and 6 d in darkness on the chemical composition and nutritive utilization of protein and carbohydrates. METHODS Nutritional assessment of protein and carbohydrates was based on chemical analysis of raw and germinated pea flours and in vitro and in vivo rat balance methodologies. RESULTS Germinati...

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Phospholipid Biosynthesis and Fatty Acid Content in Relation to Chilling Injury during Germination of Seeds.

The proportion of labeled (14)C-glycerol incorporated into phospholipids and the fatty acid composition of three phospholipids in germinating seeds and seedlings of chilling-sensitive lima beans (Phaseolus lunatus L.) and chilling-resistant broad beans (Vicia faba L.) and peas (Pisum sativum L.) at 10 and 25 C were determined. During the imbibition of seeds (first 24 hours), lima beans were sen...

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Activity of enzymes of arginine metabolism in the cotyledons of developing and germinating pea seeds.

Ornithine carbamoyltransferase, argininosuccinate synthetase, argininosuccinate lyase, and arginase activity were measured in extracts from cotyledons of developing and germinating seeds of Pisum sativum L. The course of activity of these four urea cycle enzymes showed a similar pattern during seed development. The activity per cotyledon increased sharply initially and reached a maximum about 5...

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عنوان ژورنال:
  • The Biochemical journal

دوره 93 1  شماره 

صفحات  -

تاریخ انتشار 1964