Results 231 to 240 of about 11,782 (257)

Indoleacetic acid oxidase

The Botanical Review, 1964
S p e c ifi c ialty nctio f.-th e E n z y m e .__ '''.'''.'.........-.''.--''''''''''''''''-'-' -'-''''113 Specifici y of the Enzyme 134 Chemistry of the Enzyme ..... 135 Mechanism of Action 13 5 Oxidation Products.13 8 Factors Influencing Action.141 Temperature, Oxygen, Time, Concentrations .141 1H.141 Natural Inhibitors.141 Occurrence and
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Fluorescence and photoinactivation of indoleacetic acid

Archives of Biochemistry and Biophysics, 1951
Abstract These results indicate quite clearly that the induction of the photoinactivation of indoleacetic acid (IAA) is by no means a peculiarity of riboflavin but is a property common to many fluorescent substances. It is not essential that the compounds be colored. Colorless materials are also able to bring about IAA photoinactivation provided that
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Direct and dye-sensitized aqueous photo-oxidation of 3-indoleacetic acid, methyl-3-indoleacetate and 1-methyl-3-indoleacetic acid 1-methyl-3-indoleacetic acid II: Quantum yields and mechamism

Journal of Photochemistry and Photobiology A: Chemistry, 1990
Abstract Mechanisms accounting for the types and yields of the products obtained in direct and dye-sensitized photo-oxidation of the compounds 3-indoleacetic acid (1a), methyl-3-indoleacetate (1b) and 1-methyl-3-indoleacetic acid (1c) in aqueous buffer (pH 5 or pH 8) containing 10% methanol are discussed.
F. Amat-Guerri, r. Martínez-Utrilla
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Cerebrospinal fluid indoleacetic acid in autistic subjects

Journal of Autism and Developmental Disorders, 1988
Cerebrospinal fluid (CSF) levels of the tryptamine metabolite, indoleacetic acid (IAA), have been measured in groups of autistic and control subjects. No significant difference was seen in group mean (+/- SEM) levels of CSF IAA (autistics 5.53 +/- 0.47 ng/ml, N = 10).
G M, Anderson, D L, Ross, W, Klykylo, F C, Feibel, D J, Cohen   +4 more
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Indoleacetic acid movement in the root cap

Planta, 1976
When applied on the root cap of Zea mays L., indol-3yl-acetic acid (IAA) may enter the root tip and move basipetally inside the cap. From the cap to the apex (quiescent centre and meristem) the IAA transport is very slow. Polarity of IAA movement, in relation to growth, is discussed.
J J, Pernet, P E, Pilet
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Inhibition of pyrogallol oxidation by 3-indoleacetic acid

Archives of Biochemistry and Biophysics, 1959
Abstract The plant growth substance, 3-indoleacetic acid (IAA), has been shown to inhibit the oxidation of pyrogallol in a variety of model reaction systems. The effectiveness of IAA as an antioxidant is greatest in methanol, and declines with increasing chain length in systems containing straight-chain alcohols.
S M, SIEGEL, F, PORTO, P, FROST
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Interaction of Gibberellic Acid and Indoleacetic Acid in Impatiens

Science, 1959
Gibberellic acid promotes doubling, early flowering, and fruiting directly in Impatiens . It also lengthens the stem, probably through a neutralization of auxin inhibitors. Such a mechanism would leave the growth-promoting auxins unchecked to produce the increased elongation characteristic of gibberellin application.
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Effect of indoleacetic acid on protein and ribonucleic acid synthesis

Experientia, 1965
Unter dem Einfluss der Indolessigsaure ist die Aminoacyl-SRNA-Synthese nicht verandert, dagegen zeigen die Ribosomen eine gesteigerte Fahigkeit von Aminosaure-Inkorporation.
A, Datta, B B, Biswas
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Chlorogenic acid as a competitive inhibitor of indoleacetic acid oxidase

Archives of Biochemistry and Biophysics, 1957
Abstract An enzyme system oxidizing indoleacetic acid was isolated from pea epicotyls. It had an optimal activity at pH 5.6. Chlorogenic acid was a competitive inhibitor for the oxidase in vitro. Caffeic acid inhibited IAA oxidase in a noncompetitive fashion, and quinic acid, the other moiety of chlorogenic acid, was inactive.
R S, RABIN, R M, KLEIN
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The metabolism of indoleacetic acid by barley grains

Planta, 1975
It has been shown that indoleacetic acid (IAA) does not occur in developing grains of Hordeum vulgare L. (barley), but that an unidentified indolic compound does. This compound, designated 'A', was also found to be a product of the metabolism of exogenous IAA by barley.
A, Minchin, M A, Harmey
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