Response of rice seedlings to aluminium stress with varying phosphate supplies

Pécsváradi, Attila: Response of rice seedlings to aluminium stress with varying phosphate supplies. In: Acta biologica Szegediensis, (49) 1-2. pp. 107-109. (2005)

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Abstract

In this study the effects of Al and phosphate (P) treatments on the growth and potassium influx in roots and transport toward the shoots of rice (Oryza sativa L. cv. Oryzella) was examined. Seedlings were grown hydroponically at pH 4.1 with different levels of Al and P. Increased levels of Al in the growth solution reduced root growth in accordance of the Al-concentration. Shoot growth was only moderately influenced in 14 day experiment. P (as phosphate) supply in the growth solution enabled rice plants to overcome the Al toxicity symptoms, however, the available P concentrations must exceed the Al concentration in the external medium. In short-term (6h) uptake experiments, P reduced the Al-stimulated K+(86Rb) influx anomaly in roots, which indicates a definite Al-P interaction at the plant level too. Stimulation of glutamine synthetase activity was confirmed by in vitro tests and western blot detection after native PAGE separation of enzyme isoforms.

Item Type: Article
Heading title: Stress biology; Proceedings
Journal or Publication Title: Acta biologica Szegediensis
Date: 2005
Volume: 49
Number: 1-2
ISSN: 1588-385X
Page Range: pp. 107-109
Language: angol
Event Title: Hungarian Congress on Plant Physiology, 8., 2005, Szeged, Hungarian Conference on Photosynthesis, 6., 2005, Szeged
Uncontrolled Keywords: Természettudomány, Biológia
Additional Information: Bibliogr.: 109. p.; Abstract
Date Deposited: 2016. Oct. 17. 09:24
Last Modified: 2018. May. 28. 09:29
URI: http://acta.bibl.u-szeged.hu/id/eprint/22696

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