Results 241 to 250 of about 14,149 (259)

Peroxidase isoenzymes of the Avena coleoptile

Phytochemistry, 1974
Abstract The bulk of the peroxidases of Avena coleoptile sections exist in soluble and salt-extractable, wall-associated fractions with lesser amounts in membranous and wall-bound fractions. In the presence of auxin the peroxidase levels remain nearly constant while in the absence of auxin the peroxidase of each fraction increases 2-to 6-fold in 22
Robert E. Cleland, M.G. Gardiner
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Stimulation of rice coleoptile growth by ethylene

Planta, 1970
The growth rate of rice coleoptiles is increased by low concentrations of ethylene, especially in oxygen concentrations lower than air; carbon dioxide enhanced this response. C2H4 is produced by rice seedlings, and this production is also enhanced by carbon dioxide.
Hiroshi Suge, Lawrence Rappaport, Han San Ku, Harlan K. Pratt   +3 more
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Ascorbic Acid in the Avena Coleoptile

Botanical Gazette, 1937
1. Ascorbic acid is present in considerable concentrations in Avena coleoptiles from etiolated seedlings. 2. On the basis of wet weight determinations, reduced ascorbic acid is present in higher concentrations in tips than in bases of coleoptiles, and oxidized ascorbic acid shows the reverse gradient of distribution. 3.
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Dextranase Activity in Coleoptiles of Avena

Science, 1970
An enzyme activity similar to that of dextranase is associated with coleoptiles of Avena sativa . When subjected to purified dextranase, both the pure natural dextran and the cell walls of the Avena coleoptiles yield isomaltose and isomaltotriose.
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Auxine in Maiskoleoptilen

Planta, 1967
Aqueous diffusates and ether and ethanol extracts from tips of corn coleoptiles contain two ether soluble auxins. It could be shown by paper chromatography, electrophoresis and staining reactions that one of these (A1) is IAA. The second auxin (A2) is a bound form which was easily converted to IAA under mild conditions.
E. Vogel, J. Reinert
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The colour of the coleoptile of wheat. 2. A review and geographical distribution of the purple coleoptile of Triticum aestivum

Euphytica, 1973
This paper reviews the use of purple/green coleoptiles in wheat variety description, the identification of the anthocyanidins and anthocyanins of the purple coleoptile, its genetics and association with other characteristics. The geographical distribution of 902 Old World local varieties or their selections with purple or green coleoptile were ...
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Peroxisomes in Rice Coleoptiles Grown in Air and in Anoxia

Botanica Acta, 1989
AbstractRice coleoptiles grow under anoxia. When the ultrastructure of anoxic coleoptile cells was examined, it was seen that most organelles maintain their integrity, with the exception of peroxisomes (unspecialized type). The lack of O2 greatly reduced the number of these organelles and altered the ultrastructure of the remaining ones. To examine the
Amedeo Alpi, Laura Pistelli, Nicoletta Rascio, Nicoletta Rascio, L. De Bellis   +4 more
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The Auxin Receptor in Corn Coleoptiles

1987
A common approach to isolate hormone receptors is the preparation of a protein fraction with high affinity to a particular hormone. The search for an auxin receptor can be traced back to 1972 when Hertel and his coworkers prepared a membrane fraction with auxin binding activity.
Marian Löbler, Dieter Klämbt
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Ethanol sensitivity of rice and oat coleoptiles

Physiologia Plantarum, 2002
The ability to avoid the ethanol‐induced injury was evaluated in rice (Oryza sativa L.) and oat (Avena sativa L.) coleoptiles. The growth of the rice and oat coleoptiles was inhibited by ethanol exogenously applied at concentrations greater than 200 and 30 mM, respectively.
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DEHYDROGENASES OF THE AVENA COLEOPTILE

American Journal of Botany, 1943
Julius Berger, George S. Avery
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