Abstract
To identify scorable marker traits that can be used in cereal breeding programs for selecting drought tolerant individuals, we investigated the correlation among the drought-associated traits in two F2 populations derived from the crosses made between drought tolerant and sensitive barley and wheat parental genotypes. The parental genotypes of these crosses also differed by at least three other traits – paraquat tolerance, leaf size, and the relative water content. These three traits were scored in two F2populations of 80 individuals for each barley and wheat cross. Analysis of results indicated that the enhanced tolerance to paraquat was correlated with reduced leaf size and increased relative water content, two traits associated with water stress phenotypes of the drought tolerant barley and wheat parents. Our results suggested that the selection based on paraquat tolerance istechnically less demanding and thus useful for rapid screening of individuals for enhanced drought tolerance in segregating populations.
Similar content being viewed by others
References
Arnon, D.I., 1949. Copper enzymes in isolated chloroplasts. Polyphenol oxidase in Beta vulgaris.Plant Physiol 24: 1–15.
Bohnert, H.J. & R.G. Jennen, 1996. Strategies for engineering water-stresstolerance in plants. TIBTECH 14: 89–97.
Cakmak, I. & H. Marschner, 1992. Magnesium deficiencyenhances resistance to paraquat toxicity in bean leaves. Plant Cell Environ 15: 955–960.
Dodge, A.D., 1971.The mode of action of the dibyridylium herbicides, paraquat and diquat. Endeavour 30: 130–135.
Foyer, C.H.,P. Des Courvieres & K.J. Kunert, 1994. Protection against radicals: an important defense mechanism studied in transgenic plants. Plant Cell Environ 17: 507–523.
Hsiao, T.C., 1973. Plant responses to water stress.Ann Rev Plant Physiol 24: 519–570.
Iturbe-Ormaetxe I., P.R. Escredo, C. Arrese-Igur & M. Becane,1998. Oxidative damage in pea plants exposed to water deficit or paraquat. Plant Physiol 116: 173–181.
Irigoyen, J.J., D.W. Emerich & M. Sanchez-Diaz, 1992. Alfalfa leaf senescence induced by drought stress:photosynthesis hydrogen peroxide metabolism, lipid peroxidation and ethylene evolution. Physiol Plantarum 84: 67–72.
Jamaux, I., A. Steinmetz & E. Belhassen, 1997. Looking for molecular and physiological markers of osmoticadjustment in sunflower. New Phytol 137: 117–127.
Levitt, J., 1980. Water, radiation salt and otherstresses. In: Responses of Plants to Environmental Stress, Vol 2, Academic Press, New York.
Lichtenthaler, H.K. & A.R. Wellburn, 1983. Determinations of total carotenoids and chlorophylls a and b leaf extracts in different solvents. Biochem Soci Transact 11: 591–592.
Ludlow, M.M. & R.C. Muchow, 1990. A critical evaluation oftraits for improving crop yields in water-limited environments. Adv Agron 43: 107–153.
Miyagawa Y.,M. Tamoi & S. Shigeoka, 2000. Evaluation of the defense system in chloroplasts to photooxidative stress caused by paraquat using transgenic tobacco plants expressing catalase from Escherichia coli. Plant Cell Physiol 41: 311–320.
Moran, J.F., M. Becana, I. Iturbe-Ormaetxe, S. Frechilla Klucas & R.V. Aparricio-Tejo, 1994. Drought inducesoxidative stress in pea plants. Planta 194: 346–352.
Mukherjee, S.P. & M.A. Choudhuri, 1983.Implications of water stress-induced changes in the levels of endogenous ascorbic acid and hydrogen peroxide in Vigna seedlings. Physiol Plant 58: 166–170.
Shikanai, T., T. Takeda, H. Yamauchi, S. Sano, K. Tomozawa, A. Yokota & S. Shigeoka, 1998. Inhibition of ascorbate peroxidase under oxidative stress in tobacco having bacterial catalase in chloroplast. FEBS Lett 428: 47–51.
Smirnoff N., 1993. Tansley Review No: 52. The role of active oxygenin the response of Plants to water deficit and desiccation. New Phytol 125: 27–58.
Smirnoff N. & S.V. Colombe, 1988. Drought influences the activity of the chloroplast hydrogen peroxide scavenging system. J Exp Bot 39: 1097–1108.
Tabaeizadeh Z., 1998. Drought-induced responses in plant cells. Int Rev Cytol182: 193–242.
Tanaka, K., R. Masuda, T. Sugimoto, K. Omasa & T. Sakaki, 1990. Water deficiency-induced changes in the contents of defensive substances against active oxygen in spinach leaves. Agric Biol Chem 54: 2629–2634.
Turner, N.C., 1986. Adaptation to water deficits: a changing perspective. Aust J Plant Physiol13: 175–190.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Altinkut, A., Kazan, K., Ipekci, Z. et al. Tolerance to paraquat is correlated with the traits associated with water stress tolerance in segregating F2 populations of barley and wheat. Euphytica 121, 81–86 (2001). https://doi.org/10.1023/A:1012067711200
Issue Date:
DOI: https://doi.org/10.1023/A:1012067711200