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Estimation of indole-3-acetic acid in gametophytes of the moss,Physcomitrella patens

✍ Scribed by Neil W. Ashton; Aga Schulze; Prudence Hall; Robert S. Bandurski


Publisher
Springer-Verlag
Year
1985
Tongue
English
Weight
270 KB
Volume
164
Category
Article
ISSN
0032-0935

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✦ Synopsis


By means of gas chromatography-selected ion monitoring-mass spectrometry using an isotope-dilution assay with 4,5,6,7-tetradeutero-indole-3-acetic acid as the internal standard, indole-3-acetic acid has been estimated to be present in aseptically cultured gametophytes of wild-type Physcomitrella patens (Hedw.) B.S.G. at a level of 0.075 microgram g-1 dry weight or 2.1 ng g-1 fresh weight.


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Colorimetric estimation of indole-3-acet
✍ Joseph Chrastil πŸ“‚ Article πŸ“… 1976 πŸ› Elsevier Science 🌐 English βš– 354 KB

After oxidation of indole-3-acetic acid with ceric nitrate in the presence of hydroxylamine, a stable colored complex extractable to isoamyl alcohol is formed. This reaction is useful for the calorimetric estimation of indole-3-acetic acid in biological mixtures. The colored complex (whose chromopho