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Senescence of Rice Leaves : VII. PROLINE ACCUMULATION IN SENESCING EXCISED LEAVES.

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Proline content increased greatly in detached rice (Oryza sativa cv. Taichung Native 1) leaves during senescence. There was a slight but significant increase in proline level after one day of incubation, and, subsequently, proline accumulated relatively rapidly. By 4 days after excision, the level

Radioactivity in tobacco leaves.

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The radioactivity in tobacco leaves collected from 15 different regions of Greece before cigarette production was studied in order to find any association between the uptake of the naturally occurring radionuclides and the isotopes of cesium of Chernobyl origin. The activities of the isotopes of

The metabolism of the organic acids of tobacco leaves. XV. Effect of culture of excised leaves in solutions of potassium phosphate.

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The metabolism of the organic acids of tobacco leaves. XVII. Effect of culture of excised leaves in solutions of potassium pyruvate.

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The metabolism of the organic acids of tobacco leaves. XIII. Effect of culture of excised leaves in solutions of potassium bicarbonate.

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The metabolism of the organic acids of tobacco leaves. 18. Effect of culture of excised leaves in solutions of potassium Ls-isocitrate.

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Potassium deficiency affects the carbon-nitrogen balance in cotton leaves.

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Potassium (K) plays important roles in the metabolism of carbon (C) and nitrogen (N), but studies of K deficiency affecting C-N balance are lacking. This study explored the influence of K deficiency on C-N interaction in cotton leaves by conducting a field experiment with cotton cultivar DP0912

THE METABOLISM OF THE ORGANIC ACIDS OF TOBACCO LEAVES. XX. EFFECT OF CULTURE OF EXCISED LEAVES IN SOLUTIONS OF POTASSIUM ASPARTATE AND OF ASPARAGINE.

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Preparation of potassium dihydrogen Ls(+)-isocitrate from Bryophyllum calycinum leaves.

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Potassium activities in cell compartments of salt-grown barley leaves.

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Triple-barrelled microelectrodes measuring K(+) activity (a(K)), pH and membrane potential were used to make quantitative measurements of vacuolar and cytosolic a(K) in epidermal and mesophyll cells of barley plants grown in nutrient solution with 0 or 200 mM added NaCl. Measurements of a(K) were

A compositional study of Moringa stenopetala leaves.

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OBJECTIVE To investigate nutrient composition in moringa leaves and compare with those of kale (Brassica carinata) and Swiss chard (Beta vulgaris). METHODS Laboratory based study, nutrient composition of fresh and cooked leaves of M. stenopetala were analyzed. METHODS Gama-Gofa, south-western

Diagnosis of Nitrogen Nutrition in Rice Leaves Influenced by Potassium Levels.

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Evaluation of nitrogen (N) status by leaf color is a kind of classic nutritional diagnostic method. However, the color of leaves is influenced not only by N, but also by other nutrients such as potassium (K). Two-year field trials with a factorial combination of N and K were conducted to investigate

Regulation of potassium transport in leaves: from molecular to tissue level.

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Over millions of years, plants have evolved a sophisticated network of K+ transport systems. This Botanical Briefing provides an overview of K+ transporters in various leaf tissues (epidermis, mesophyll, guard cells and vascular system) at both the cellular and organelle levels. Despite the

Rapid isolation of intact chloroplasts from spinach leaves.

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In this chapter, a rapid method to isolate intact chloroplasts from spinach leaves is described. Intact chloroplasts are isolated using two short centrifugation steps and avoiding the use of percoll gradient. Intactness of chloroplast is evaluated by the inability of potassium ferricyanide to enter

[Two forms of glutamine synthetase from pumpkin leaves].

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Two molecular forms of glutamine synthetase localized in the cytoplasm and in chloroplasts, respectively, were detected in pumpkin leaves. Ammonium infiltrated into intact pumpkin leaves activated the synthesis of both enzyme forms. Glutamine synthetase from chloroplasts and the cytoplasmic enzyme

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