Results 101 to 110 of about 3,016 (118)

An Electronic Coleoptile Measuring Device

Journal of Experimental Botany, 1977
An apparatus for the rapid measurement of large populations of cereal coleoptiles is described. It has application in seedling evaluation and the study of factors affecting early seedling growth. The seedlings are grown in shallow trays and passed through a photoelectric counter which records the number of coleoptiles present at successive 1 cm ...
A. GOLDSWORTHY, R. GATES, D. L. RIDGLEY
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Chloroplast Development in Rye Coleoptiles

Botanica Acta, 1994
AbstractIn the parenchyma cells of 1‐d‐old dark‐grown rye coleoptiles (Secale cereale) proplastids occurred which sometimes contained starch grains. During coleoptile growth in darkness starch‐filled amyloplasts are formed from the preexisting proplastids.
M. Fröhlich, U. Kutschera
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Kinetic modelling of phototropism in maize coleoptiles

Planta, 1987
Blue-light-induced phototropism of maize (Zea mays L.) coleoptiles was studied with a view to kinetic models. Red-light-grown plants were used to eliminate complication arising from the activation by blue light of phytochrome-mediated phototropism. In the first part, mathematical models were developed to explain the phototropic fluence-response data ...
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Gibberellins and geotropism in Zea mays coleoptiles

Planta, 1973
Diffusible gibberellins were obtainable in agar from excised 4 mm tips of etiolated coleoptiles of Zea mays. Placing the tips in a horizontal position increased the total yield of gibberellins by approximately five times. With horizontal tips, the ratio of gibberellin activity recovered from lower and upper halves, expressed as a percentage of total ...
I D, Railton, I D, Phillips
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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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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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[Auxins in coleoptiles of corn].

Planta, 2014
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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Pigments of the Oat Coleoptile

Science, 1936
G, Wald, H G, Du Buy
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Phototropic Auxin Redistribution in Corn Coleoptiles

Science, 1957
W R, BRIGGS, R D, TOCHER, J F, WILSON
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coleoptile, n.

2023
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