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Details for article 8 of 9 found articles
| Title: |
Measurement of P-coumarate hydroxylase activity as a qualitative test for sorghum cultivar Fe-efficiency |
| Author: |
McKenzie, D. B. Hossner, L. R. Newton, R. J. |
| Appeared in: |
Journal of plant nutrition |
| Paging: | Volume 10 (1987) nr. 1 pages 15-24 |
| Year: |
1987-01 |
| Contents: |
A qualitative test for p-coumarate hydroxylase, measuring solution reductant levels one hour after addition of p-coumaric acid to a CaCO3 buffered nutrient solution containing Fe-stressed sorghum, was examined as a possible biochemical assay for sorghum cultivar Fe-efficiency screening. P-coumarate hydroxylase is an important enzyme in the biochemical synthesis of caffeic acid, while caffeic acid has been identified as a major reductant released by certain Fe-efficient plants while under Fe-stress. All ten sorghum cultivars tested in this study contained the enzyme and could not be differentiated for Fe-efficiency on this basis. The enzyme was highly active during testing on plants grown in CaCO3 buffered nutrient solution (pH 7.5), but the enzyme appeared to be inactivated in pH 3 nutrient solution. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 8 of 9 found articles
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