caa a22 4500 477109276 CHVBK 20180405111604.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00029279 doi (NATIONALLICENCE)springer-10.1007/BF00029279 Abscisic acid in soils: What is its function and which factors and mechanisms influence its concentration? [Elektronische Daten] [Wolfram Hartung, Angela Sauter, Neil Turner, Ian Fillery, Hermann Heilmeier] Abscisic acid (ABA) was detected in aqueous extracts of a range of different soils, beneath a range of crops, pasture and forest species. Assuming that all the ABA is dissolved in the soil solution concentrations ranged from 0.6-2.8 nM. This is in the range which computer simulations predict is required in soils in order to prevent ABA release from the root hair zones of plant roots. The concentration of ABA in the soil solution was highest in acid soils and in soils with reduced moisture, and was lowest in moist, neutral and moderately alkaline soils. ABA in the soil solution of maize fields increased during the vegetative period. After incubation in soil for 72 h, radioactive ABA was degraded by 30-40%. Tetcyclacis, an inhibitor of the oxidative breakdown of ABA, completely prevented the degradation of ABA in the soil solution. Acid conditions and high salt concentrations significantly retarded ABA breakdown. Kluwer Academic Publishers, 1996 abscisic acid nationallicence rhizosphere nationallicence roots nationallicence soil nationallicence stress nationallicence Hartung Wolfram Julius von Sachs Institut für Biowissenschaften, Lehrstuhl Botanik I, Universität Würzburg, Mittlerer Dallenbergweg 64, D 97082, Würzburg, Germany aut Sauter Angela Julius von Sachs Institut für Biowissenschaften, Lehrstuhl Botanik I, Universität Würzburg, Mittlerer Dallenbergweg 64, D 97082, Würzburg, Germany aut Turner Neil Division of Plant Industry, CSIRO, Private Bag, 6014, Wembley, WA, Australia aut Fillery Ian Division of Plant Industry, CSIRO, Private Bag, 6014, Wembley, WA, Australia aut Heilmeier Hermann Lehrstuhl Pflanzenökologie, Universität Bayreuth, D 95440, Bayreuth, Germany aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 184/1(1996-03-01), 105-110 0032-079X 184:1<105 1996 184 11104 https://doi.org/10.1007/BF00029279 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00029279 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hartung Wolfram Julius von Sachs Institut für Biowissenschaften, Lehrstuhl Botanik I, Universität Würzburg, Mittlerer Dallenbergweg 64, D 97082, Würzburg, Germany aut NATIONALLICENCE 700 1- Sauter Angela Julius von Sachs Institut für Biowissenschaften, Lehrstuhl Botanik I, Universität Würzburg, Mittlerer Dallenbergweg 64, D 97082, Würzburg, Germany aut NATIONALLICENCE 700 1- Turner Neil Division of Plant Industry, CSIRO, Private Bag, 6014, Wembley, WA, Australia aut NATIONALLICENCE 700 1- Fillery Ian Division of Plant Industry, CSIRO, Private Bag, 6014, Wembley, WA, Australia aut NATIONALLICENCE 700 1- Heilmeier Hermann Lehrstuhl Pflanzenökologie, Universität Bayreuth, D 95440, Bayreuth, Germany aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl// 184/1(1996-03-01), 105-110 0032-079X 184:1<105 1996 184 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer