Journalartikel

Jahr der Veröffentlichung: 2006

Seiten: 392-397

Zeitschrift: Journal of Plant Physiology

Bandnummer: 163

Heftnummer: 4

ISSN: 0176-1617

DOI Link: https://doi.org/10.1016/j.jplph.2005.03.014

Verlag: Elsevier

Abstract: 
This study aimed to investigate the effect of water stress on the accumulation of proline in the leaves of transgenic potato lines generating fructans. The results of the series of bifactorial experiments in 2002 and 2003 indicated an increase of the proline Level. in leaves of all potato lines examined under water deficit. In addition, an increase in proline concentration during plant development was observed. The proline content was related to leaf water potential and relative water content (RWC), which indicates that proline could be involved in osmoregulation of potato plants under the experimental conditions. Surprisingly, under water deficit, the proline Level was lowest in most of the transgenic SST/FFT-lines, which generate fructan molecules with a high degree of polymerization. Therefore, a pleiotropic effect can not be excluded as the reason for the divergence in behavior of these transgenic tines. The present results suggest that the modification of carbohydrate metabolism, especially the high content of soluble carbohydrates, may affect water stress-induced proline accumulation. (c) 2005 Elsevier GrnbH. All rights reserved.

Harvard-Zitierstil: Knipp, G. and Honermeier, B. (2006) Effect of water stress on proline accumulation of genetically modified potatoes (Solanum tuberosum L.) generating fructans, Journal of Plant Physiology, 163(4), pp. 392-397. https://doi.org/10.1016/j.jplph.2005.03.014

APA-Zitierstil: Knipp, G., & Honermeier, B. (2006). Effect of water stress on proline accumulation of genetically modified potatoes (Solanum tuberosum L.) generating fructans. Journal of Plant Physiology. 163(4), 392-397. https://doi.org/10.1016/j.jplph.2005.03.014