Effect of Salinity and Exogenously Applied Polyamines on Growth and Ion Relations in Spinach

Effect of Saline Water on Growth, Yield and Ions Content in Spinach Genotypes

“…A non-significant effect of saline waters for K accumulation in spinach leaves in our study validates the findings of Ferreira et al (2020). A rise in Na + and Clconcentrations and drop in K + concentration in spinach leaves is documented in salinity trials (Suleiman et al, 2002;Shimomachi et al, 2008;Turhan et al, 2013;Muchate et al, 2019). is a mean ± SE (n = 3); Means followed by different small letters in a column are significantly different from each other (P < 0.05) as a function of saline waters; Means followed by different capital letters down a row show significant difference between spinach genotypes (P < 0.05).…”

“…In a greenhouse study on spinach (cv. Space), irrigated by a range of saline waters, the fresh and dry weights were decreased with increasing the salinity levels of saline waters (Suleiman et al, 2002). Ors and Suarez (2016) studied spinach (cv.…”

Effect of NaCl concentrations in irrigation water on growth and polyamine metabolism in two citrus rootstocks with different levels of salinity tolerance

“…These results suggest the role of these two polyamines in the salinity tolerance of citrus rootstocks. Recent studies suggest that changes in polyamine biosynthesis and levels may be an integral part of the response of plants to stress (Bouchereau et al 1999;Suleiman et al 2002). Differences in polyamines' (Put, Spd, Spm) response under salt-stress conditions have been reported among and within species.…”

Seed pre-treatment with spermidine alleviates oxidative damages to different extent in the salt (NaCl)-stressed seedlings of three indica rice cultivars with contrasting level of salt tolerance

“…Four forms of CAT isozymes, three APX isozymes and seven GPX isozymes were identified in plants under salinity stress (Nagesh and Devaraj, 2008). In addition, the polyamines (PAs) like the triamine spermidine (Spd 3+ ), tetramine spermine (Spm 4+ ) and diamine putrescine (Put 2+ ) are suggested to play valiant role in abiotic stress tolerance and their increased endogenous accumulation, correlating with stress tolerance has been reported earlier (Suleiman et al, 2002; A C C E P T E D M A N U S C R I P T 5 accumulation of common osmolytes like reducing sugar, total amino acids, proline, changes in the amounts of non-enzymatic antioxidants like anthocyanin, cysteine, total phenolics, polyphenol oxidase and reducing power, as well as the activities of the enzymatic components including GPX, APX, CAT and SOD along with isozyme profiling of such enzymes were performed in the control and NaCl-stressed seedlings of the aforementioned cultivars, either in presence or absence of Spd. The feasibility of Spd pre-treatment as a cost effective technique to improve NaCl tolerance has been investigated so that the farmers can utilize it as a proposed solution in NaCl-affected areas.…”