JXB Advance Access published online on January 16, 2006
Journal of Experimental Botany, doi:10.1093/jxb/erj062
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 Facultad de Ciencias Agronómicas, Universidad de Chile, Casilla 1004, Santiago, Chile
* To whom correspondence should be addressed. The yield of 24 commercial varieties and accessions of common bean (Phaseolus vulgaris) has been determined at different sites in Chile and Bolivia. Statistical analysis was performed in order to characterize whether a particular variety was more or less stable in yield under different environmental conditions. Amongst these, two varieties have been identified for more detailed study: one variety has a higher than average yield under unstressed conditions but is strongly affected by stress, and another has a reduced yield under unstressed conditions but is less affected by stress. The contrasting rate of abscission of the reproductive organs under drought stress was clearly consistent with these differences. The more tolerant genotype shows a great deal of plasticity at the biochemical and cellular level when exposed to drought stress, in terms of stomatal conductance, photosynthetic rate, abscisic acid synthesis, and resistance to photoinhibition. By contrast, the former lacks such plasticity, but shows an enhanced tendency for a morphological response, the movement of leaves, which appears to be its principal response to drought stress.
Received May 17, 2005
Accepted November 16, 2005
RESEARCH PAPER
Differential adaptation of two varieties of common bean to abiotic stress. I. Effects of drought on yield and photosynthesis
Carolina Lizana 1,
Mark Wentworth 2,
Juan P. Martinez 1,
Daniel Villegas 1,
Rodrigo Meneses 3,
Erik H. Murchie 2,
Claudio Pastenes 1,
Bartolomeo Lercari 4,
Paulo Vernieri 4,
Peter Horton 2 *,
and
Manuel Pinto 1
2 Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, UK
3 Facultad de Ciencias Agricolas y Pecuarias ‘Martín Cárdenas’, Universidad Mayor de San Simon, Casilla 5842, Cochabamba, Bolivia
4 Università di Pisa, Dipartimento di biologia delle piante agrarie, Viale delle Piagge 23, I-56124 Pisa, Italy
Peter Horton, E-mail: p.horton{at}sheffield.ac.uk
![]()
Abstract ![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
Z. Xu, G. Zhou, and H. Shimizu Are plant growth and photosynthesis limited by pre-drought following rewatering in grass? J. Exp. Bot., September 1, 2009; 60(13): 3737 - 3749. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. Xu and G. Zhou Responses of leaf stomatal density to water status and its relationship with photosynthesis in a grass J. Exp. Bot., September 1, 2008; 59(12): 3317 - 3325. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. P. Singh Drought Resistance in the Race Durango Dry Bean Landraces and Cultivars Agron. J., August 10, 2007; 99(5): 1219 - 1225. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Wentworth, E. H. Murchie, J. E. Gray, D. Villegas, C. Pastenes, M. Pinto, and P. Horton Differential adaptation of two varieties of common bean to abiotic stress: II. Acclimation of photosynthesis J. Exp. Bot., February 1, 2006; 57(3): 699 - 709. [Abstract] [Full Text] [PDF] |
||||

