JXB Advance Access originally published online on September 24, 2004
Journal of Experimental Botany 2004 55(407):2343-2351; doi:10.1093/jxb/erh276
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
RESEARCH PAPER |
Root growth maintenance during water deficits: physiology to functional genomics*
1Department of Agronomy, Plant Sciences Unit, 1-87 Agriculture Building, University of Missouri, Columbia, MO 65211, USA
2Department of Plant Biology and Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA
3Department of Computer Science, University of Missouri, Columbia, MO 65211, USA
To whom correspondence should be addressed. Fax: +1 573 882 1469. E-mail: SharpR{at}missouri.edu
Progress in understanding the network of mechanisms involved in maize primary root growth maintenance under water deficits is reviewed. These include the adjustment of growth zone dimensions, turgor maintenance by osmotic adjustment, and enhanced cell wall loosening. The role of the hormone abscisic acid (ABA) in maintaining root growth under water deficits is also addressed. The research has taken advantage of kinematic analysis, i.e. characterization of spatial and temporal patterns of cell expansion within the root growth zone. This approach revealed different growth responses to water deficits and ABA deficiency in distinct regions of the root tip. In the apical 3 mm region, elongation is maintained at well-watered rates under severe water deficit, although only in ABA-sufficient roots, whereas the region from 3–7 mm from the apex exhibits maximum elongation in well-watered roots, but progressive inhibition of elongation in roots under water deficit. This knowledge has greatly facilitated discovery of the mechanisms involved in regulating the responses. The spatial resolution with which this system has been characterized and the physiological knowledge gained to date provide a unique and powerful underpinning for functional genomics studies. Characterization of water deficit-induced changes in transcript populations and cell wall protein profiles within the growth zone of the maize primary root is in progress. Initial results from EST and unigene analyses in the tips of well-watered and water-stressed roots highlight the strength of the kinematic approach to transcript profiling.
Key words: Abscisic acid, cell wall extensibility, ESTs, expansins, kinematics, osmotic adjustment
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  A. Rodrigues, J. Santiago, S. Rubio, A. Saez, K. S. Osmont, J. Gadea, C. S. Hardtke, and P. L. Rodriguez The Short-Rooted Phenotype of the brevis radix Mutant Partly Reflects Root Abscisic Acid Hypersensitivity Plant Physiology, April 1, 2009; 149(4): 1917 - 1928. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. M. Quist, I. Sokolchik, H. Shi, R. J. Joly, R. A. Bressan, A. Maggio, M. Narsimhan, and X. Li HOS3, an ELO-Like Gene, Inhibits Effects of ABA and Implicates a S-1-P/Ceramide Control System for Abiotic Stress Responses in Arabidopsis thaliana Mol Plant, January 1, 2009; 2(1): 138 - 151. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. K. Vandeleur, G. Mayo, M. C. Shelden, M. Gilliham, B. N. Kaiser, and S. D. Tyerman The Role of Plasma Membrane Intrinsic Protein Aquaporins in Water Transport through Roots: Diurnal and Drought Stress Responses Reveal Different Strategies between Isohydric and Anisohydric Cultivars of Grapevine Plant Physiology, January 1, 2009; 149(1): 445 - 460. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. Izanloo, A. G. Condon, P. Langridge, M. Tester, and T. Schnurbusch Different mechanisms of adaptation to cyclic water stress in two South Australian bread wheat cultivars J. Exp. Bot., September 1, 2008; 59(12): 3327 - 3346. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J.I.L Morison, N.R Baker, P.M Mullineaux, and W.J Davies Improving water use in crop production Phil Trans R Soc B, February 12, 2008; 363(1491): 639 - 658. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. Yoshimura, A. Masuda, M. Kuwano, A. Yokota, and K. Akashi Programmed Proteome Response for Drought Avoidance/Tolerance in the Root of a C3 Xerophyte (Wild Watermelon) Under Water Deficits Plant Cell Physiol., February 1, 2008; 49(2): 226 - 241. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. Tuberosa, S. Salvi, S. Giuliani, M. C. Sanguineti, M. Bellotti, S. Conti, and P. Landi Genome-wide Approaches to Investigate and Improve Maize Response to Drought Crop Sci., December 18, 2007; 47(Supplement_3): S-120 - S-141. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Zhu, S. Alvarez, E. L. Marsh, M. E. LeNoble, I.-J. Cho, M. Sivaguru, S. Chen, H. T. Nguyen, Y. Wu, D. P. Schachtman, et al. Cell Wall Proteome in the Maize Primary Root Elongation Zone. II. Region-Specific Changes in Water Soluble and Lightly Ionically Bound Proteins under Water Deficit Plant Physiology, December 1, 2007; 145(4): 1533 - 1548. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. E. Nelson, P. P. Repetti, T. R. Adams, R. A. Creelman, J. Wu, D. C. Warner, D. C. Anstrom, R. J. Bensen, P. P. Castiglioni, M. G. Donnarummo, et al. Plant nuclear factor Y (NF-Y) B subunits confer drought tolerance and lead to improved corn yields on water-limited acres PNAS, October 16, 2007; 104(42): 16450 - 16455. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Basu, A. Pal, J. P. Lynch, and K. M. Brown A Novel Image-Analysis Technique for Kinematic Study of Growth and Curvature Plant Physiology, October 1, 2007; 145(2): 305 - 316. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Yang, J. Zhang, K. Liu, Z. Wang, and L. Liu Involvement of polyamines in the drought resistance of rice J. Exp. Bot., April 1, 2007; 58(6): 1545 - 1555. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. Rymen, F. Fiorani, F. Kartal, K. Vandepoele, D. Inze, and G. T.S. Beemster Cold Nights Impair Leaf Growth and Cell Cycle Progression in Maize through Transcriptional Changes of Cell Cycle Genes Plant Physiology, March 1, 2007; 143(3): 1429 - 1438. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M.-B. Bogeat-Triboulot, M. Brosche, J. Renaut, L. Jouve, D. Le Thiec, P. Fayyaz, B. Vinocur, E. Witters, K. Laukens, T. Teichmann, et al. Gradual Soil Water Depletion Results in Reversible Changes of Gene Expression, Protein Profiles, Ecophysiology, and Growth Performance in Populus euphratica, a Poplar Growing in Arid Regions Plant Physiology, February 1, 2007; 143(2): 876 - 892. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V Poroyko, W. Spollen, L. Hejlek, A. Hernandez, M. LeNoble, G Davis, H. Nguyen, G. Springer, R. Sharp, and H. Bohnert Comparing regional transcript profiles from maize primary roots under well-watered and low water potential conditions J. Exp. Bot., January 1, 2007; 58(2): 279 - 289. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P Landi, M. Sanguineti, C Liu, Y Li, T. Wang, S Giuliani, M Bellotti, S Salvi, and R Tuberosa Root-ABA1 QTL affects root lodging, grain yield, and other agronomic traits in maize grown under well-watered and water-stressed conditions J. Exp. Bot., January 1, 2007; 58(2): 319 - 326. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Xiong, R.-G. Wang, G. Mao, and J. M. Koczan Identification of Drought Tolerance Determinants by Genetic Analysis of Root Response to Drought Stress and Abscisic Acid Plant Physiology, November 1, 2006; 142(3): 1065 - 1074. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Rosado, I. Amaya, V. Valpuesta, J. Cuartero, M. A. Botella, and O. Borsani ABA- and ethylene-mediated responses in osmotically stressed tomato are regulated by the TSS2 and TOS1 loci J. Exp. Bot., September 1, 2006; 57(12): 3327 - 3335. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Ma, Q. Gong, and H. J. Bohnert Dissecting salt stress pathways J. Exp. Bot., March 1, 2006; 57(5): 1097 - 1107. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Fan, R. Linker, S. Gepstein, E. Tanimoto, R. Yamamoto, and P. M. Neumann Progressive Inhibition by Water Deficit of Cell Wall Extensibility and Growth along the Elongation Zone of Maize Roots Is Related to Increased Lignin Metabolism and Progressive Stelar Accumulation of Wall Phenolics Plant Physiology, February 1, 2006; 140(2): 603 - 612. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Zhu, S. Chen, S. Alvarez, V. S. Asirvatham, D. P. Schachtman, Y. Wu, and R. E. Sharp Cell Wall Proteome in the Maize Primary Root Elongation Zone. I. Extraction and Identification of Water-Soluble and Lightly Ionically Bound Proteins Plant Physiology, January 1, 2006; 140(1): 311 - 325. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Park, J. Li, J. K. Pittman, G. A. Berkowitz, H. Yang, S. Undurraga, J. Morris, K. D. Hirschi, and R. A. Gaxiola Up-regulation of a H+-pyrophosphatase (H+-PPase) as a strategy to engineer drought-resistant crop plants PNAS, December 27, 2005; 102(52): 18830 - 18835. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Giuliani, M. C. Sanguineti, R. Tuberosa, M. Bellotti, S. Salvi, and P. Landi Root-ABA1, a major constitutive QTL, affects maize root architecture and leaf ABA concentration at different water regimes J. Exp. Bot., December 1, 2005; 56(422): 3061 - 3070. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Zhu, D. Schraut, W. Hartung, and A. R. Schaffner Differential responses of maize MIP genes to salt stress and ABA J. Exp. Bot., November 1, 2005; 56(421): 2971 - 2981. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V. Poroyko, L.G. Hejlek, W.G. Spollen, G.K. Springer, H.T. Nguyen, R.E. Sharp, and H.J. Bohnert The Maize Root Transcriptome by Serial Analysis of Gene Expression Plant Physiology, July 1, 2005; 138(3): 1700 - 1710. [Abstract] [Full Text] [PDF]
|
|