Biology Department, Faculty of Science, Albaha University, Albaha, Saudi Arabia.
Saudi J Biol Sci. 2011 Jan;18(1):37-44. doi: 10.1016/j.sjbs.2010.07.002. Epub 2010 Jul 21.
The effect of kinetin, spermine and their combination on growth vigor, photosynthetic pigments, some metabolites, some enzymes, polyamines and productivity of salt-stressed Vigna sinensis plants was investigated. Salt stress reduced all evaluated growth criteria and yield components of used plants. Chlorophyll (CHL (a, b, carotenoids, carbohydrates, protein, spermidine and spermine level as well as and amylase activity were also decreased in response to salinity. On the other hand, proline, K(+), Na(+) and putrescine concentration, and peroxidase activity were increased in the salt-stressed plants. Exogenous application of kinetin and spermine mitigated the deleterious effects of salinity stress on growth and yield of the used plants. Conversely, the combined treatment of kinetin and spermine induced additional reduction in growth and yield of the stressed plants, and the effect appeared to be constitutive. The protective effect of kinetin and spermine on V. sinensis plants appeared mainly due to the enhancement effect of these growth regulators on chlorophylls and protein content and polyamines titer.
研究了激动素、腐胺及其组合对盐胁迫下豇豆生长活力、光合色素、一些代谢物、一些酶、多胺和生产力的影响。盐胁迫降低了所用植物的所有评估生长标准和产量构成。叶绿素（CHL（a、b、类胡萝卜素、碳水化合物、蛋白质、腐胺和精胺水平以及淀粉酶活性也因盐度而降低。另一方面，脯氨酸、K（+）、Na（+）和腐胺浓度以及过氧化物酶活性在盐胁迫下的植物中增加。外源施用激动素和腐胺减轻了盐胁迫对所用植物生长和产量的有害影响。相反，激动素和腐胺的联合处理导致胁迫植物的生长和产量进一步降低，而且这种效应似乎是组成性的。激动素和腐胺对豇豆的保护作用主要归因于这些生长调节剂对叶绿素和蛋白质含量以及多胺含量的增强作用。
