Summary
Abscisic acid (ABA) and gibberellic acid (GA3), alone and in combination, were applied to Pennisetum typhoides seedlings and the effects on the activity of phosphorylase, amylase, invertase, hexose-phosphate-isomerase, sucrose-6-phosphate-synthetase and sucrose-synthetase were studied. ABA-treatment inhibited the activity of amylase and invertase, but stimulated greatly that of phosphorylase, hexose-phosphate-isomerase, sucrose-6-phosphate-synthetase and sucrose-synthetase. GA3 alone, on the other hand, promoted the activity of invertase but had no significant influence on the other enzymes tested. Given in combination with ABA, GA3 completely overcomes the stimulative effect of ABA on sucrosesynthetase.
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Abbreviations
- ABA:
-
Abscisinsäure
- GA3 :
-
Gibberellinsäure
- UDPG:
-
Uridindiphosphat-glucose
- G-1-P:
-
Glucose-1-phosphat
- NaF:
-
Natriumfluorid
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Huber, W., Sankhla, N. Untersuchungen über den Einfluß von Abscisin- und Gibberellinsäurebehandlung auf die Aktivitäten einiger Enzyme des Kohlenhydratstoffwechsels in Blättern von Pennisetum typhoides Keimlingen. Planta 116, 55–64 (1974). https://doi.org/10.1007/BF00390203
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DOI: https://doi.org/10.1007/BF00390203