Labeled Indole-Macromolecular Conjugates from Growing Stems Supplied with Labeled Indoleacetic Acid

Labeled indole-macromolecular conjugates from growing stems supplied with labeled indoleacetic Acid : I. Fractionation.

Pea (Pisum sativum var. Alaska) and bean (Phaseolus vulgaris var. Red Kidney) stem sections treated with indoleacetic acid-1-(14)C, indoleacetic acid-2-(14)C, and indoleacetic acid-5-(3)H were homogenized, extracted with phenol, and the water-soluble, ethanol-insoluble material subjected to further fractionation. Following an 18-hour incubation period in indoleacetic acid-1-(14)C, most of the l...

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Amide-Linked Indoleacetic Acid Conjugates May Control Levels of Indoleacetic Acid in Germinating Seedlings of Phaseolus vulgaris.

We have shown that amide-linked IAA (indole-3-acetic acid) conjugates accumulated to high levels during maturation of bean seeds (K. Bialek and J.D. Cohen [1989] Plant Physiol 91: 775-779). In the present study, we were interested in the fate of these and other IAA conjugates during seed germination. The content of amide-linked conjugates of IAA in cotyledons declined dramatically during the fi...

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Patterns of Amino Acid Biosynthesis from Labeled Glucose*

Glucose may be metabolized through the Embden-Myerhof glycolytic sequence to the threecarbon compounds, pyruvate and lactate. Alternatively, some of the glucose may be converted (a) to pentose via the hexose monophosphate shunt (1~) or (b) to serine and glycine by a series of reactions which probably branch from glycolysis at the level of phosphoglyceric acid (1, ~, 7, 8). The pyruvate and lact...

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Patterns of Amino Acid Biosynthesis from Labeled Glucose*

Glucose may be metabolized through the Embden-Myerhof glycolytic sequence to the threecarbon compounds, pyruvate and lactate. Alternatively, some of the glucose may be converted (a) to pentose via the hexose monophosphate shunt (1~) or (b) to serine and glycine by a series of reactions which probably branch from glycolysis at the level of phosphoglyceric acid (1, ~, 7, 8). The pyruvate and lact...

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Patterns of amino acid biosynthesis from labeled glucose.

Glucose may be metabolized through the Embden-Myerhof glycolytic sequence to the threecarbon compounds, pyruvate and lactate. Alternatively, some of the glucose may be converted (a) to pentose via the hexose monophosphate shunt (1~) or (b) to serine and glycine by a series of reactions which probably branch from glycolysis at the level of phosphoglyceric acid (1, ~, 7, 8). The pyruvate and lact...

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Labeled Indole-Macromolecular Conjugates from Growing Stems Supplied with Labeled Indoleacetic Acid

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