LWR1 and LWR2 are required for osmoregulation and osmotic adjustment in Arabidopsis

Plant Physiology
Paul E Verslues, Elizabeth A Bray

Abstract

With the goal of identifying molecular components of the low-water-potential response, we have carried out a two-part selection and screening strategy to identify new Arabidopsis mutants. Using a system of polyethylene glycol-infused agar plates to impose a constant low-water-potential stress, putative mutants impaired in low-water-potential induction of the tomato (Lycopersicon esculentum) le25 promoter were selected. These lines were then screened for altered accumulation of free Pro. The seedlings of 22 mutant lines had either higher or lower Pro content than wild type when exposed to low water potential. Two mutants, designated low-water-potential response1 (lwr1) and lwr2, were characterized in detail. In addition to higher Pro accumulation, lwr1 seedlings had higher total solute content, greater osmotic adjustment at low water potential, altered abscisic acid content, and increased sensitivity to applied abscisic acid with respect to Pro content. lwr1 also had altered growth and morphology. lwr2, in contrast, had lower Pro content and less osmotic adjustment leading to greater water loss at low water potential. Both lwr1 and lwr2 also had altered leaf solute content and water relations in unstressed soil-grown plants. In ...Continue Reading

References

Jan 1, 1995·Methods in Cell Biology·J ChoryN Mochizuki
Nov 14, 1997·The Plant Journal : for Cell and Molecular Biology·R LarteyV Citovsky
Dec 17, 1997·Plant & Cell Physiology·Y YoshibaK Shinozaki
Jun 24, 1998·Proceedings of the National Academy of Sciences of the United States of America·Z Xin, J Browse
Mar 6, 1999·Microbiology and Molecular Biology Reviews : MMBR·J M Wood
Sep 6, 2000·The Plant Journal : for Cell and Molecular Biology·R J LabyS I Gibson
Feb 14, 2002·Plant, Cell & Environment·L. Xiong, J.-K. Zhu
Feb 14, 2002·Plant, Cell & Environment·S. Wilkinson, W. J. Davies
Feb 14, 2002·Plant, Cell & Environment·R. Munns
Feb 14, 2002·Plant, Cell & Environment·R. Serraj, T. R. Sinclair
Dec 1, 1993·Plant Physiology·E. A. Bray
Oct 29, 1982·Science·J S Boyer
Jul 1, 2002·Functional Plant Biology : FPB·Albino MaggioRobert J Joly

❮ Previous
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Citations

Oct 23, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·N RutaA Hund
Dec 18, 2013·Journal of Plant Physiology·Christos KotakisKiriakos Kotzabasis
Jun 7, 2008·Journal of Experimental Botany·Cecilia Vasquez-RobinetRuth Grene
Sep 30, 2008·Pakistan Journal of Biological Sciences : PJBS·Nayer Mohammadkhani, Reza Heidari
Jul 5, 2005·Proceedings of the National Academy of Sciences of the United States of America·Jianhua ZhuRay A Bressan
Sep 5, 2007·Ecotoxicology and Environmental Safety·Daniela PavlíkováJirí Balík
Nov 1, 2007·The Plant Journal : for Cell and Molecular Biology·Gyöngyi SzékelyLászló Szabados
Jan 31, 2006·The Plant Journal : for Cell and Molecular Biology·Paul E VersluesJian-Kang Zhu
Aug 8, 2006·The Plant Journal : for Cell and Molecular Biology·Paul E VersluesJian-Kang Zhu
Apr 23, 2010·The Plant Journal : for Cell and Molecular Biology·Jianhua ZhuJian-Kang Zhu
Aug 27, 2014·Plant Physiology and Biochemistry : PPB·Marcela Rojas-PiercePatricia S Springer
Feb 26, 2016·Plant Molecular Biology·Paul E Verslues
Sep 2, 2017·Scientific Reports·Geupil JangYang Do Choi
Jul 1, 2005·Functional Plant Biology : FPB·Ian F Wardlaw
Oct 27, 2017·Proceedings of the National Academy of Sciences of the United States of America·Rajesh KalladanPaul E Verslues
Oct 10, 2020·Current Biology : CB·Kong ChenYang Zhao

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