Soil salinity is an increasing problem in agriculture throughout the world. The utilization of halophytic plants for pasture and fodder production in saline soils is the only economic solution presently available. The present study discusses the effects of different concentrations of sodium chloride on seed germination and its impact was determined by protein profiling on Sesuvium portulacastrum, Suaeda maritima and Salicornia brachiata. Seeds germination was substantially delayed and reduced with an increase in NaCl to above threshold level. Changes in the pattern of protein expression were found to be prominent between control and NaCl treated seeds.pproximately 42 kDa, 26 kDa and 20 kDa were found to be up-regulated as the concentration of salt increases in Sesuvium portulacastrum. Whereas, significant variation in the protein patterns were observed in Suaeda maritima such as ~20 to 30 kDa protein bands were not visible and protein band of 55 kDa was particularly increased after 300 mM NaCl treatment. Similarly in Salicornia brachiata expression of 45 kDa protein was up regulated and approximately 25 kDa protein expression was down regulated as the concentration of salt increased to about 1.5 M, 2 M and 2.5 M. However, the upper limit for the survival of the seedling was 200 mM, 300 mM and 1 M for Sesuvium portulacastrum, Suaeda maritima and Salicornia brachiata, respectively. On the basis of the present investigation, this study suggests that optimal application of NaCl can benefit plant growth on stress tolerance studies and also helps for further investigation of the salt tolerance networks.

中文翻译：

---

不同氯化钠浓度下盐沼植物的种子发芽能力和蛋白质谱分析

土壤盐分是全世界农业中日益严重的问题。利用盐生植物在盐渍土壤中进行牧草和饲料生产是目前唯一可用的经济解决方案。本研究讨论了不同浓度的氯化钠对种子发芽的影响，并通过蛋白质谱分析对东南葡萄球菌，滨海小穗藻和腕带Salicornia brachiata的影响进行了测定。种子发芽被显着延迟，并且随着NaCl的增加达到阈值水平而降低。发现对照和NaCl处理的种子之间蛋白质表达模式的变化明显。随着盐浓度的增加，大约42 kDa，26 kDa和20 kDa的蛋白质上调。东南葡萄球菌。然而，在滨海小Su中观察到蛋白质模式的显着变化，例如看不到约20至30 kDa的蛋白带，并且在300 mM NaCl处理后，55 kDa的蛋白带特别增加。类似地，在腕Sal中，随着盐浓度增加到约1.5 M，2 M和2.5 M，上调45 kDa蛋白的表达，下调约25 kDa蛋白的表达。但是，幼苗存活的上限是200 mM，300 mM和1 M分别用于东南葡萄球菌（Susuvium portulacastrum），滨海小穗藻（Suaeda maritima）和腕栗分别。根据目前的研究，这项研究表明，在胁迫耐受性研究中，最佳应用NaCl可以有益于植物生长，也有助于进一步研究耐盐性网络。