Altered Cell Microfibrillar Orientation in Ethylene-treated Pisum sativum Stems.
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چکیده
منابع مشابه
Ethylene-induced Pea Internode Swelling: Its Relation to Ribonucleic Acid Metabolism, Wall Protein Synthesis, and Cell Wall Structure.
Exposure of etiolated pea (Pisum sativum L. var. Alaska) subapical sections to ethylene disrupts normal polar cell expansion, but fresh weight increase is little affected and the tissue expands radially, swelling. Ethylene has no effect on gross ribonucleic acid metabolism before or during the period when swelling occurs, but incorporation of (14)C-proline and leucine into wall-associated prote...
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An extract from the apical portion of etiolated seedlings of Pisum sativum L. was used as a test system to examine the action of ethylene on DNA polymerase activity. The extract catalyzed the polymerization of labeled deoxyribonucleoside triphosphates into a trichloroacetic acid-insoluble product. The system required Mg(2+), nicked DNA, and all four deoxyribonucleoside triphosphates for maximum...
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Asparaginase was extracted from plant parts of Pisum sativum subspp. Jof collected from a field crop. Asparaginase activity was detected in seeds, stems and leaves extracts. Enzyme activity was higher in seeds extracts (30.0 U/ml) compared with leaves extracts (26.4 U/ml) and stems extracts (16.1 U/ml), respectively. Optimum conditions for the activity of crude asparaginase extracted from plant...
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Ethylene inhibits growth in the subhook region of intact etiolated pea seedlings (Pisum sativum, var. Alaska) by reducing the capacity of the polar auxin transport system supplying auxin to the tissue. Application of 0.1 mm 2,4-dichlorophenoxyacetic acid reverses the growth inhibition caused by ethylene, and stimulates formation of sufficient gas to induce a swelling response in the absence of ...
متن کاملEthylene-induced lateral expansion in etiolated pea stems : kinetics, cell wall synthesis, and osmotic potential.
Treatment of etiolated pea (Pisum sativum L.) internode tissue with ethylene gas inhibits elongation and induces lateral expansion. Precise kinetics of the induction of this altered mode of growth of excised internode segments were recorded using a double laser optical monitoring device. Inhibition of elongation and promotion of lateral expansion began after about 1 hour of treatment and achiev...
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ورودعنوان ژورنال:
- Plant physiology
دوره 48 5 شماره
صفحات -
تاریخ انتشار 1971