Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2003.16.22El-BazF.K. MohamedAmal A. Amina A. Aly 1200361The possible involvement of the ionic relations, proline accumulation, activity of
peroxidase enzyme and proteins pattern in the tolerance to salt stress was studied in two
cucumber cultivars, cv. Dott and alphabet. Cucumber seedlings were grown in a
hydroponic solution for 2 weeks prior to salt treatment. NaCl was added to the solution
at three level. Plant treatment with NaCl for 2 weeks resulted in the redistribution of Na+,
K+ and Ca++ ions in the roots and leaves tissues. Na% in the dry matter of the roots and
leaves were increased by increasing salt stress. Whereas Ca and K% of the roots and
leaves were decreased. Proline concentration in leaves tissue increased significantly with
increasing NaCl concentration in the growth media, but a high proline concentration was
recorded in cv. Dott cultivar compared to the cv. Alphabet. Furthermore total peroxidase
activity increased under NaCl salinity and the degree of elevation in the activity was salt
concentration dependent. Nevertheless, the profile of isoperoxidase was modified during
stress conditions as evident from the electrophoregram. Although, two isoforms were
detected in both cultivars with different intensities. This study also found a subset of
proteins induced by salt stress compared to control plant.]]>Amako, A., G.X. Chen and K. Asada,199435497504Ashraf, M. and A. Waheed, 1993Cicer arietinum L.) to salt. ]]>154257266Baalbaki, R.Z., R.A. Zurayk, R.A. Adlan, M.M. and M.C. Sexena,200023805814Bates, L.S., R.P. Waldren and I.D. Teare,197339205207Bradford, M.M.,197672248254Clark, R.B.,1982510391057El-Farash, E.M., A.E. El-Enany and A. Majen,199374345352Ericson, M.C. and S.H. Alfinito,198474506509Esaka, M. and H. Hayakawa,199536441449Hampson, C.R. and G.M. Simpson,1990Triticum aestivum). I. Germination.]]>68524528Hashim, Z.N. and W.F. Campbell,1988233831Laemmli, U.K.,1970227680685Lechno, S., E. Zamski and E. Tel-Or,1997150206210Piqueras, A., J. Hernandez, E. Olmos, E. Hellin and F. Sevilla,1996455360Potluri, S.D.P. and P.V.D. Prasad,1993Salanum tuberosum L.).]]>32185191Reggiani, R., S. Bozo and A. Bertani,1995Triticum aestivum L.) cultivars.]]>75175177Sendecor, G.M. and W.G. Cochran,19676th Edn.,pp: 593pp: 593Sreenivasulu, N., S. Ramanjulu, K. Ramachandra-Kini, H.S. Prakash, H. Shekar-Shetty, H.S. Savithri and C. Sudhakar,199914119Stephen, B.R., A. Costa, Z. Xin and P.H. Li,1995Solanum commersonii).]]>3612451251Yeo, A.R. and T.J. Flowers,19841984pp: 37-66pp: 37-66Aspinall, D. and L.G. Paleg,19811981pp: 205-241pp: 205-241Harbi, A.R.A. and S.W. Burrage,1999cucumns sativus L. growth in NFT.]]>1999Chapman, H.D. and P.F. Pratt,1961pp: 169-170pp: 169-170Flowers, T.J. and A.R. Yeo,199522875884Jeschke, W.D.,1984+- Na + exchange at Cellular Membranes Intracellular Compartmentation of Cations and Salt Tolerance.]]>1984pp: 37-66pp: 37-66Rashed, M.A., E.M. Fahmy and M.A. Sallam,19941994pp: 469490Rothe, G.M.,1997pp: 1-10pp: 1-10Abdullah, Z.,19871987pp: 143-148pp: 143-148