Abstract
In this study, cotton seedlings were subjected to osmotic-, salt- and alkali stresses. The growth, photosynthesis, inorganic ions, and organic acids in the stressed seedlings were measured, to compare the mechanisms by which plants adapt to these stresses and attempt to probe the mechanisms by which plants adapt to high pH stress. Our results indicated that, at high stress intensity, both osmotic and alkali stresses showed a stronger injurious effect on growth and photosynthesis than salt stress. Cotton accumulated large amount of Na+ under salt and alkali stresses, but not under osmotic stress. In addition, the reductions of K+, NO3 −, and H2PO4 − under osmotic stress were much greater than those under salt stress with increasing stress intensity. The lack of inorganic ions limited water uptake and was the main reason for the higher injury from osmotic-compared to salt stress on cotton. Compared with salt- and alkali stresses, the most dramatic response to osmotic stress was the accumulation of soluble sugars as the main organic osmolytes. In addition, we found that organic acid metabolism adjustment may play different roles under different types of stress. Under alkali stress, organic acids might play an important role in maintaining ion balance of cotton; however, under osmotic stress, malate might play an important osmotic role.
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Abbreviations
- DM:
-
dry mass
- E :
-
transpiration rate
- FM:
-
fresh mass
- g s :
-
stomatal conductance
- OA:
-
organic acid
- P N :
-
net photosynthetic rate
References
Ashraf, M., Ahmad, S.: In uence of sodium chloride on ion accumulation, yield components and & Rbre characteristics in salt-tolerant and salt-sensitive lines of cotton (Gossypium hirsutum L.). Field Crops Res. 66: 115–127, 2000.
Chen, W., Cui, P., Sun, H., Guo, W., Yang, C., Jin, H., Fan, B., Shi, D.: Comparative effects of salt and alkali stresses on organic acid accumulation and ionic balance of seabuckthorn (Hippophae rhamnoides L.). — Ind. Crop. Prod. 30: 351–358, 2009.
Chen, H., Xiong, L.: Pyridoxine is required for post-embryonic root development and tolerance to osmotic and oxidative stresses. — Plant J. 44: 396–408, 2005.
Gao, C., Wang, Y., Liu, G., Yang, C., Jiang, J., Li, H.: Expression profiling of salinity-alkali stress responses by large-scale expressed sequence tag analysis in Tamarix hispid. — Plant Mol. Biol. 66: 245–258, 2008.
Gadallah, M.A.A.: Effect of water stress, abscisic acid and proline on cotton plants. J. Arid Environ. 30: 315–325, 1995.
Hu, Y., Schmidhalter, U.: Drought and salinity: A comparison of their effects on mineral nutrition of plants. — J. Plant Nutr. Soil Sci. 168: 541–549, 2005.
Kawanabe, S., Zhu, T.C.: Degeneration and conservation of Aneurolepidium chinense grassland in Northern China. — J. Jap. Grassland Soc. 37: 91–99, 1991.
Khan, M.A., Ungar, I.A., Showalter, A.M.: The effect of salinity on the growth, water status, and ion content of a leaf succulent perennial halophyte, Suaeda fruticosa (L.) Forssk. — J. Arid Environ. 45: 73–84, 2000.
Koyama, H., Kawamura, A., Kihara, T., Hara, T., Takita, E., Shibata, D.: Overexpression of mitochondrial citrate synthase in Arabidopsis thaliana improved growth on a phosphoruslimited soil. — Plant Cell Physiol. 41: 1030–1037, 2000.
Läuchli, A., Lüttge, U.: Salinity in the soil environment. — In: Tanji, K.K. (ed.): Salinity: Environment-Plants-Molecules. Pp. 21–23. Kluwer Academic Publ., Boston 2002.
Li, X.F., Ma, J.F., Matsumoto, H.: Pattern of aluminum-induced secretion of organic acids differs between rye and wheat. — Plant Physiol. 123: 1537–1544, 2000.
López-Bucio, J., Nieto-Jacobo, M.F., Ramírez-Rodríguez, V., Herrera-Estrella, L.: Organic acid metabolism in plants: from adaptive physiology to transgenic varieties for cultivation in extreme soils. — Plant Sci. 160: 1–13, 2000.
López-Millán, A.F., Morales, F., Andaluz, S., Gogorcena, Y., Abadía, A., Rivas, J.D.L., Abadía, J.: Responses of sugar beet roots to iron deficiency. Changes in carbon assimilation and oxygen use. — Plant Physiol. 124: 885–898, 2000.
Meloni, D.A., Oliva M.A., Martinez, C.A., Cambraia, J.: Photosynthesis and activity of superoxide dismutase, peroxidase and glutathione reductase in cotton under salt stress. — Environ. Exp. Bot. 49: 69–76, 2003.
Munns, R.: Comparative physiology of salt and water stress. — Plant Cell Environ. 25: 239–250, 2002.
Munns, R., Tester, M.: Mechanisms of Salinity Tolerance. — Annu. Rev. Plant Biol. 59: 651–681, 2008.
Nepomuceno, A.L., Oosterhuis, D.M., Stewart, J.M.: Physiological responses of cotton leaves and roots to water deficit induced by polyethylene glycol. — Environ. Exp. Bot. 40: 29–41, 1998.
Pettigrew, W.T.: Physiological consequences of moisture deficit stress in cotton. — Crop Sci. 44: 1265–1272, 2004.
Saavedra, L., Vensson, J., Carballo, V., Izmendi, D., Welin, B., Vidal, S.: A dehydrin gene in Physcomitrella patens is required for salt and osmotic stress tolerance. Plant J. 45: 237–249, 2006.
Shi, D., Sheng, Y.: Effect of various salt-alkaline mixed stress conditions on sunflower seedlings and analysis of their stress factors. — Environ. Exp. Bot. 54: 8–21, 2005.
Shi, D., Wang, D.: Effects of various salt-alkali mixed stresses on Aneurolepidium chinense (Trin.) Kitag. — Plant Soil 271: 15–26, 2005.
Shi, D.C., Yin, S.J., Yang, G.H., Zhao, K.F.: Citric acid accumulation in an alkali-tolerant plant Puccinellia tenuiflora under alkaline stress. — Acta Bot. Sin. 44: 537–540, 2002.
Timpa, J.D., Burke, J.J., Quiseberry, J.E., Wendt, C.W.: Effect of water stress on organic acid and carbohydrate composition of cotton plant. — Plant Physiol. 82: 724–730, 1986.
Turner, N.C., Hearn, A.B., Begg, J.E., Constable, G.A., 1986. Cotton (Gossypium hirsutum L.); physiological and morphological responses to water deficit and their relation to yield. — Field Crops Res. 14: 153–170, 1986.
Ullah, I, Rahman, M., Ashraf, M., Zafar, Y.: Genotypic variation for drought tolerance in cotton (Gossypium hirsutum L.): Leaf gas exchange and productivity. — Flora 203: 105–115, 2008.
Wang, Y., Ma, H., Liu, G., Xu, C., Zhang, D., Ban, Q.: Analysis of gene expression profile of Limonium bicolor under NaHCO3 stress using cDNA microarray. — Plant Mol. Biol. Rep. 26: 241–254, 2008.
Yang, C., Guo, W., Shi, D.: Physiological roles of organic acids in alkali-tolerance of the alkali-tolerant halophyte Chloris virgata. — Agron. J. 102: 1081–1089, 2010.
Yang, C., Shi, D., Wang, D.: Comparative effects of salt stress and alkali stress on growth, osmotic adjustment and ionic balance of an alkali resistant halophyte Suaeda glauca (Bge.). — Plant Growth Regul. 56: 179–190, 2008c.
Yang, C.W., Chong, J.N., Kim, C.M., Li, C.Y., Shi, D.C., Wang, D.L.: Osmotic adjustment and ion balance traits of an alkali resistant halophyte Kochia sieversiana during adaptation to salt and alkali conditions. — Plant Soil 294: 263–276, 2007.
Yang, C.W., Jianaer, A., Li, C.Y., Shi, D.C., Wang, D.L.: Comparison of the effects of salt-stress and alkali-stress on photosynthesis and energy storage of an alkali-resistant halophyte Chloris virgata. — Photosynthetica 46: 273–278, 2008a.
Yang, C.W., Wang, P., Li, C.Y., Shi, D.C., Wang, D.L.: Comparison of effects of salt and alkali stresses on the growth and photosynthesis of wheat. — Photosynthetica 46: 107–114, 2008b.
Zheng, H.Y., Li, J.D.: Form and dynamic trait of halophyte community. — In: Zheng, H.Y., Li, J.D. (ed.): Saline Plants in Songnen Plain and Restoration of Alkaline-Saline Grass. Pp. 137–138. Science Press, Beijing 1999.
Zhu, G.L.: Determination of free proline and sugar. -In: Zhu, G.L. (ed.): Laboratory Manual of Plant Physiology. Pp. 10–60. Beijing University Press, Beijing 1993.
Zhu, J.K.: Regulation of ion homeostasis under salt stress. — Curr. Opin. Cell Biol. 6: 441–445, 2003.
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This work was supported by the National Natural Science Foundation of China (Nos. 31072078 and J0830627-2) and the Basic Research Project by Jilin Provincial Government (No. 20090576).
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Chen, W., Feng, C., Guo, W. et al. Comparative effects of osmotic-, salt- and alkali stress on growth, photosynthesis, and osmotic adjustment of cotton plants. Photosynthetica 49, 417–425 (2011). https://doi.org/10.1007/s11099-011-0050-y
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DOI: https://doi.org/10.1007/s11099-011-0050-y