Experimental system for studying long-term drought stress adaptation of wheat cultivars

Secenji, Mária and Lendvai, Ágnes and Hajósné, Zsuzsa and Dudits, Dénes and Györgyey, János: Experimental system for studying long-term drought stress adaptation of wheat cultivars. Acta biologica Szegediensis, (49) 1-2. pp. 51-52. (2005)

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Abstract

Water limitation is a well-known problem for plants. Lack of water affects their biomass, their yield that is the most conspicuous in case of crops causing severe uncertainty of agricultural productivity. Under drought stress, plants generally display many physiological responses such as stomata closure, decreased/stopped photosynthetic activity, increased root/shoot ratio, reduced growth of vegetative parts. Many of the physiological changes are caused by underlying transcriptional alterations of high number of genes in many cases. One of the most studied phenomenon is the accumulation of proline as an osmoprotectant. Proline biosynthesis is increased by water deficit due to increased expression of the key enzyme, namely Δ1-pyrroline-5-carboxylate synthetase (P5CS). In our experiments, we applied P5CS as a positive control to evaluate our new experimental system, which will allow to follow transcriptional changes in shoots, as well as in roots during drought adaptation. Our alternative approach allows greenhouse or growth chamber experiments that are more similar to natural conditions than the widely used experimental systems based on osmotic agents such as polyethylene glycol (PEG).

Item Type: Article
Event Title: Hungarian Congress on Plant Physiology, 8., 2005, Szeged, Hungarian Conference on Photosynthesis, 6., 2005, Szeged
Journal or Publication Title: Acta biologica Szegediensis
Date: 2005
Volume: 49
Number: 1-2
Page Range: pp. 51-52
ISSN: 1588-385X
Language: angol
Heading title: Stress biology; Proceedings
Uncontrolled Keywords: Természettudomány, Biológia
Additional Information: Bibliogr.: 52. p.; Abstract
Date Deposited: 2016. Oct. 17. 09:24
Last Modified: 2018. May. 28. 11:00
URI: http://acta.bibl.u-szeged.hu/id/eprint/22676

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