| تعداد نشریات | 24 |
| تعداد شمارهها | 917 |
| تعداد مقالات | 8,230 |
| تعداد مشاهده مقاله | 16,274,423 |
| تعداد دریافت فایل اصل مقاله | 13,750,852 |
Induced salinity tolerance and altered ion storage factor in Hordeum vulgare plants upon salicylic-acid priming | ||
| Iran Agricultural Research | ||
| مقاله 6، دوره 36، شماره 1، تیر 2017، صفحه 41-48 اصل مقاله (297.66 K) | ||
| نوع مقاله: Full Article | ||
| شناسه دیجیتال (DOI): 10.22099/iar.2017.3878 | ||
| نویسندگان | ||
| H. PirastehAnosheh1؛ Y. Emam* 2 | ||
| 1National Salinity Research Centre, Agricultural Research, Education and Extension Organization (AREEO), Yazd, I. R. Iran | ||
| 2Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, I. R. Iran | ||
| چکیده | ||
| Abstract This study was undertaken to better understand the probable mechanisms of salt stress tolerance induced by seed priming of salicylic acid (SA) in barley. The barley seeds were pre-soaked by SA or water and then sown under different saline watering regimes including 0.62 (tapwater), 5, 10 and 15 dS m-1 in petri dishes and trend of water absorbing, seedling growth, germination rate and percentage were measured. After 11 days, seedlings were transplanted to pots and K+ and Na+ accumulation and storage factor were determined. The results showed that salt stress reduced absorbed water (50%), germination rate (39%), seedling growth (74%) and K+ accumulation (38%) and increased Na+ accumulation (fivefold). In all hours after sowing, SA-primed seeds had greater absorbed water with higher growth rate and this trend was true for all days after sowing. SA-primed seedlings had higher germination rate (30%), as well as, shoot (17%) and root length (38%). Enhanced K+ and reduced Na+ accumulation was also found in SA-primed seedlings. Reduction in Na+ absorption due to SA application was found to be greater at lower salinity stress levels and this was consistent with its effect on seedling growth. Storage factor, devised for quantifying partitioning of absorbed ions, were found to be increased for K+ and decreased for Na+ at higher salt stress levels; this means that at higher salinity levels, greater Na+ and lower K+ were transported to the shoot and this was associated with greater loss in seedling growth. Indeed, SA-primed seedlings showed a greater Na+ storage factor i.e. they kept more Na+ in their roots, in non- and light salt stress treatments. Accelerated water imbibition, greater germination rate, less Na+, higher K+ accumulation, and greater Na+ storage in roots might be some mechanisms for salt stress tolerance in SA-primed barley seedlings. | ||
| کلیدواژهها | ||
| Key words: Ion accumulation؛ growth pattern؛ storage factor؛ water absorption | ||
| مراجع | ||
|
Ashraf, M., Akram, N.A., Arteca, R.N., & Foolad, M.R. (2010). The Physiological, biochemical and molecular roles of brassinosteroids and salicylic acid in plant processes and salt tolerance. Critical Review in Plant Science, 29, 162-190.
Ashraf, M., Athar, H.R., Harris, P.J.C., & Kwon, T.R. (2008). Some prospective strategies for improving crop salt tolerance. Advanced Agronomy, 97, 45-110.
Blumwald, E., Aharon, G.S., & Apse, M.P. (2000). Sodium transport in plant cells. Biochimica et Biophysica Acta, 1465, 140-151.
Davenport, R., James, R.A., ZakrissonPlogander, A.Z., Tester, M., & Munns, R. (2005). Control of sodium transport in durum wheat. Plant Physiology, 137, 807-818.
Dolatabadian, A., Mohammad, S.A., Sanavy, M., & Sharif, M. (2008). Effect of salicylic acid and salt on wheat seed germination. ActaAgriculturae Scandinavica, Section B. Soil and Plant Science, 1–9.
ElTayeb, M.A. (2005). Response of barley grain to the interactive effect of salinity and salicylic acid. Plant Growth Regulation, 42, 215-224.
Farooq, M., Basra, S.M.A., & Hafeez, K, (2006). Seed invigoration by osmohardening in coarse and fine rice. Seed Scienceand Technology, 34, 181-187.
Gorham, R.G., Papa, R., & Aloy-Leonard, M. (1994). Varietal differences in Na uptake in barley cultivars exposed to soil salinity or salt spray. Journalof Experimental Botany, 45, 895-901.
Hayat, Q., Hayat, S., Irfan, M., & Ahmad, A. (2010). Effect of exogenous salicylic acid under changing environment: A review. Environmental and Experimental Botany, 68, 14-25.
Jafar, M.Z., Farooq, M., Cheema, M.A., Afzal, I., Basra, S.M.A., Wahid, M.A., Aziz, T., & Shahid, M. (2012). Improving the performance of wheat by seed priming under saline conditions. Journal of Agronomy and Crop Science, 198, 38-45.
Kausar, F., Shahbaz, M., & Ashraf, M. (2013). Protective role of foliar-applied nitric oxide in Triticumaestivumunder saline stress. Turkish Journal of Botany, 37, 1155-1165.
Kaydan, D., Yagmur, M., & Okut, N. (2007). Effects of salicylic acid on the growth and some physiological characters in salt stressed wheat (Triticumaestivum L.). TarimBilimleriDergisi, 13, 114-119.
Khan, M.I.R., Asgher, M., & Khan, N.A. (2014). Alleviation of salt-induced photosynthesis and growth inhibition by salicylic acid involves glycine betaine and ethylene in mungbean (Vignaradiata L.). Plant Physiologyand Biochemistry, 80, 67-74.
Maggio, A., Raimondi, G., Martino, A., & De Pascale, S. (2007). Salt stress response in tomato beyond the salinity tolerance threshold. Environmental and Experimental Botany, 59, 276–282.
Nazar, N., Iqbal, N., Syeed, S.,& Khan, N.A. (2011). Salicylic acid alleviates decreases in photosynthesis under salt stress by enhancing nitrogen and sulfur assimilation and antioxidant metabolism differentially in two mungbean cultivars. Journalof Plant Physiology, 168, 807-815.
Pakniyat, H., Kazemipour, A., & Mohammadi, G.A. (2003). Variation in salt tolerance of cultivated (Hordeumvulgare L.) and wild (H. spontanum C. KOCH) barley genotypes from Iran. Iran Agricultural Research, 22, 45-62.
PirastehAnosheh, H., Emam, Y., Ashraf, M., & Foolad, M.R. (2012). Exogenous application of salicylic acid and chlormequat chloride alleviates negative effects of drought stress in wheat. Advanced Studiesin Biology, 11, 501-520.
PirastehAnosheh, H., Emam, Y., & Ashraf, M. (2014a). Impact of cycocel on seed germination and growth in some commercial crops under osmotic stress conditions. Archives of Agronomy and Soil Science, 60, 1277-1289.
PirastehAnosheh, H., Ranjbar, G., Emam, Y., & Ashraf, M. (2014b). Salicylic-acid–induced recovery ability in salt-stressed Hordeum vulgare plants. Turkish Journal of Botany, 37, 112-121.
Shakirova, F.M., Sakhabutdinova, A.R., Bozrutkova, M.V., Fatkhutdinova, R.A., & Fatkhutdinova, D.R. (2003). Changes in the hormonal status of wheat seedlings induced by salicylic acid and salinity. Plant Science, 164, 317-322.
Syeed, S., Anjum, N.A., Nazar, R., Iqbal, N., Iqbal, N., Massod, A., & Khan, N.A. (2011). Salicylic acid-mediated changes in photosynthesis, nutrients content and antioxidant metabolism in two mustard (Brassica juncea L.) cultivars differing in salt tolerance. Acta physiologiae plantarum, 33, 877-886
Uhvits, R. (1946). Effect of osmotic pressure on water absorption and germination of alfalfa seeds. American Journal of Botany, 33, 278-285.
Volkmar, K.M., Hu, Y., & Steppuhn, H. (1998). Physiological responses of plants to salinity: A review. Canadian Journal of Plant Science, 78, 19-27. | ||
|
آمار تعداد مشاهده مقاله: 1,776 تعداد دریافت فایل اصل مقاله: 1,497 |
||