Combined Effect of Salicylic Acid and Nitrogen Oxide Donor on Stress-Protective System of Wheat Plants under Drought Conditions
- 13 Downloads
Presowing treatment of wheat (Triticum aestivum L.) seeds with 10 or 100 μM salicylic acid (SA) reduced the inhibition of 14-day-old plant growth under soil drought. The same effect was caused by the spraying of 7-day-old seedlings with 0.5 or 2 mM nitrogen oxide donor (sodium nitroprusside, SNP) before drought. The protective effect was enhanced by the combination of seed treatment with 10 μM SA and plant spraying with 0.5 mM SNP, while their combinations in higher concentrations caused weaker effects. SA treatment in both concentrations and 0.5 mM SNP under drought conditions increased the antioxidant enzyme activity (superoxide dismutase, catalase, and guaiacol peroxidase) in leaves. This effect was especially significant when 10 μM SA was combined with 0.5 mM SNP. Spraying with 2 mM SNP and its combination with seed presowing with 100 μM SA did not significantly change the antioxidant enzyme activity; however, the proline content in the leaves increased. It is concluded that the SA stress-protective action on plants can be modified with exogenous nitrogen oxide.
KeywordsTriticum aestivum salicylic acid nitrogen oxide antioxidant system proline drought resistance
Unable to display preview. Download preview PDF.
- 1.Nawaz, F., Shabbir, R.N., Shahbaz, M., Majeed, S., Raheel, M., Hassan, W., and Sohail, M.A., in Phytohormones, Signaling Mechanisms and Crosstalk in Plant Development and Stress Responses, El-Esawi, M., Ed., InTech, 2017, pp. 117–141.Google Scholar
- 4.Hamayun, M., Khan, A.L., Ahmad, N., Lee, I.J., Khan, S.A., and Shinwari, Z.K., Pak. J. Bot., 2010, vol. 42, no. 2, pp. 977–986.Google Scholar
- 9.Liu, X., Zhang, S., and Lou, C., Chinese Sci. Bull., 2003, vol. 48, no. 5, pp. 449–452.Google Scholar
- 11.Karpets, Yu.V., Kolupaev, Yu.E., and Kosakovskaya, I.V., Fiziol. Rast. Genet., 2016, vol. 48, no. 2, pp. 158–166.Google Scholar
- 18.Siddiqui, M.H., Al-Whaibi, M.H., Ali, H.M., Sakran, A.M., Basalah, M.O., and AlKhaishany, M.Y.Y., Austral. J. Crop Sci., 2013, vol. 7, no. 11, pp. 1780–1788.Google Scholar
- 21.Basalah, M.O., Ali, H.M., Al-Whaibi, M.H., Siddiqui, M.H., Sakran, A.M., and Al Sahli, A.A., J. Pure Appl. Microbiol., 2013, vol. 7, pp. 139–148.Google Scholar
- 22.Shakirova, F.M., Bezrukova, M.V., and Sakhabutdinova, A.R., Agrokhimiya, 2000, no. 5, pp. 52–56.Google Scholar
- 27.Karpets, Yu.V. and Kolupaev, Yu.E., Visn. Kharkiv. Nats. Agrarn. Univ., Ser. Biol., 2017, no. 2 (41), pp. 6–31.Google Scholar