Abstract
The contents of several photosynthetic metabolites — 3-phosphoglyceric acid (3-PGA), pyruvate, nicotinamide adenine dinucleotide phosphate (NADP) and adenosine triphosphate (ATP) — were determined in leaves of cotton plants (Gossypium hirsutum L. cv. H-777) subjected to waterlogging at vegetative stage, and/or drought at the reproductive stage. In controls, soil moisture contents was kept at field capacity. One day prior to stress, the plant shoots were sprayed with 5 μM aqueous solution of indole-3-acetic acid (IAA), gibberellic acid (GA3), benzylaminopurine (BAP), abscisic acid, and ethrel. In control plants, various growth regulators reduced contents of 3-PGA and ATP while increased contents of NADP and pyruvate. During waterlogging IAA promoted 3-PGA content, and BAP enhanced pyruvate content. During drought, GA3 enhanced ATP and 3-PGA contents, while IAA enhanced pyruvate content.
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References
Czok, R., Lamprecht, W.: Pyruvate, phosphoenolpyruvate and D-glycerate-2 phosphate.-In: Bergmeyer, H.U. (ed.): Methods of Enzymatic Analysis. Pp. 1585–1589. Academic Press, New York 1974.
Du, Y.C., Nose, A., Wasano, K., Uchida, Y.: Responses to water stress of enzyme activities and metabolites level in relation to sucrose and starch synthesis, the Calvin cycle and the C4 pathway in sugarcane (Saccharum sp.) leaves.-Aust. J. Plant Physiol. 25: 253–260, 1998.
Gimenez, C., Mitchell, V.J., Lawlor, D.W.: Regulation of photosynthetic rate of two sunflower hybrids under water stress.-Plant Physiol. 98: 516–524, 1992.
Hoagland, D.R., Arnon, D.L: Waterculture method for growing plants without soil.-Univ. Calif. Agr. exp. Sta. Circ. 347: 1–39, 1950.
Kaiser, W.M., Kaiser, G., Prachuab, P.K., Wildman, S.G., Heber, U.: Photosynthesis under osmotic stress. Inhibition of photosynthesis of intact chloroplasts, protoplasts, and leaf slices at high osmotic potentials.-Planta 153: 416–422, 1981.
Latzko, E., Gibbs, M.: Measurement of the intermediates of the photosynthetic carbon reduction cycle, using enzymatic methods.-In: San Pierto, A. (ed.): Methods of Enzymology. Vol. 24, Pp. 261–268. Academic Press, New York-London 1972.
Lawlor, D.W.: The effect of water deficit on photosynthesis.-In: Smirnoff, N. (ed.): Environment and Plant Metabolism. Flexibility and Acclimation. Pp. 129–160. BIOS Scientific Publisher, Oxford 1995.
Lawlor, D.W., Khanna-Chopra, R.: Regulation of photosynthesis during water stress.-In: Sybesma, C. (ed.): Advances in Photosynthesis Research. Vol. IV. Pp. 379–382. Martinus Nijhoff/Dr. W. Junk Publishers, The Hague-Boston-Lancaster 1984.
Pandey, D.M., Goswami, C.L., Kumar, B., Sudha Jain: Hormonal regulation of photosynthetic enzymes in cotton under water stress.-Photosynthetica 38: 403–407, 2000.
Sharkey, D.T., Badger, M.R.: Effects of water stress on photosynthetic electron transport, photophosphorylation, and metabolite levels of Xanthium strumarium mesophyll cells.-Planta 156: 199–206, 1982.
Stitt, M.: Fructose 2,6-bisphospate.-In: Lea, P.J. (ed.): Methods of Plant Biochemistry. Pp. 87–92. Academic Press, New York 1990.
Stuhlfauth, T., Beckedahl, J., Fock, H.P.: The response of energy charge, NADPH and free phosphate pools to water stress.-Photosynthetica 25: 11–15, 1991.
Tarchevskiï, L.A.: Catabolism and Stress in Plants.-Nauka, Moskva 1993.
Younis, H.M., Boyer, J.S., Govindjee: Conformation and activity of chloroplast coupling factor exposed to low chemical potential of water in cells.-Biochim. biophys. Acta 548: 328–340, 1979.
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Pandey, D., Goswami, C., Kumar, B. et al. Effect of Growth Regulators on Photosynthetic Metabolites in Cotton under Water Stress. Biologia Plantarum 45, 445–448 (2002). https://doi.org/10.1023/A:1016286121451
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DOI: https://doi.org/10.1023/A:1016286121451