Ethylene-induced Pea Internode Swelling
نویسندگان
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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The capacity of excised internode sections of pea to grow and secrete protons in response to indoleacetic acid (IAA) and Ca(2+) and K(+) treatments was examined. By incubating unpeeled and unabraded sections in rapidly flowing solutions, it was shown that acidification of the external medium in the presence or absence of IAA is dependent on the presence of Ca(2+) and K(+). Similar results were ...
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Protoplast swelling was used to investigate auxin signaling in the growth-limiting stem epidermis. The protoplasts of epidermal cells were isolated from elongating internodes of pea (Pisum sativum). These protoplasts swelled in response to auxin, providing the clearest evidence that the epidermis can directly perceive auxin. The swelling response to the natural auxin IAA showed a biphasic dose ...
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In the present study, 40 lines of peas, Pisum sativum L., from the Weibullsholm collection were examined for elongation response of the first internode to growth in soil, sand, or in darkness in air. The results obtained establish that appearance of the first (lowest) node of the epicotyl at the surface of soil was usual in only a few of the lines tested (L25, L1088, L1570). By contrast, appear...
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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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1972
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.50.4.510