Effect of flooding on activities of soil dehydrogenases and alcohol dehydrogenase in rice (Oryza SativaL.) Roots
Open Access
- 1 September 1984
- journal article
- research article
- Published by Taylor & Francis in Soil Science and Plant Nutrition
- Vol. 30 (3), 359-366
- https://doi.org/10.1080/00380768.1984.10434701
Abstract
Dehydrogenase activity and redox potential were monitored over a period of 100 days in flooded and drained soils in which rice was grown. The activity of the enzyme alcohol dehydrogenase (ADH) was measured in the roots of the rice plants. The immediate decrease in soil redox potential and rapid increase in soil dehydrogenase activity upon flooding indicated a shift of microflora from aerobic to predominantly anaerobic microorganisms. Soil dehydrogenase activity remained elevated as long as the soil continued to be flooded, but was negligible in soils allowed free drainage. The rice roots only initially experienced anaerobiosis during flooding. Root ADH activity was stimulated upon flooding but declined by day 47 to levels similar to those measured in plants grown in a drained soil. The development of aerenchyma (air-space) tissue in the continuously flooded plants may have provided a pathway for oxygen movement to the roots which allowed aerobic metabolism to proceed in spite of the reduced amount of substrate.Keywords
This publication has 17 references indexed in Scilit:
- Oxygen Deficiency in Spartina alterniflora Roots: Metabolic Adaptation to AnoxiaScience, 1981
- Dehydrogenase and invertase activities of flooded soilsSoil Biology and Biochemistry, 1980
- Ethylene-promoted adventitious rooting and development of cortical air spaces (aerenchyma) in roots may be adaptive responses to flooding in Zea mays LPlanta, 1979
- A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye bindingAnalytical Biochemistry, 1976
- Alcoholic Fermentation and Activity of Some Enzymes in Rice Roots Under AnaerobiosisFunctional Plant Biology, 1976
- Adaptation of Rice to AnaerobiosisFunctional Plant Biology, 1974
- Problems in the Estimation of Biological Activity in SoilOikos, 1972
- A METABOLIC THEORY OF FLOODING TOLERANCE: THE SIGNIFICANCE OF ENZYME DISTRIBUTION AND BEHAVIOURNew Phytologist, 1971
- SOIL DEHYDROGENASE ACTIVITYSoil Science, 1964
- The Movement of150 through Barley and Rice PlantsJournal of Experimental Botany, 1962