N. Lamsaadi, H. Ellouzi, W. Zorrig, A. El Moukhtari, C. Abdelly, A. Savouré, A. Debez, M. Farissi
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引用次数: 0
Abstract
Salinity constrains the development and yield of valuable aromatic and medicinal plants, including fenugreek (Trigonella foenum-graecum L.). Silicon (Si) is a promising strategy for managing salt stress. However, knowledge related to the effects of Si-seed priming on growth and yield of salt-stressed fenugreek under natural conditions are scarce. Hence, the present work aimed to investigate whether Si-seed priming (0–60 mM CaSiO3) could help to improve the performance of fenugreek when subjected to salt stress (100 and 150 mM NaCl). Findings show that salt stress significantly reduced germination related parameters and triggered an oxidative stress in fenugreek seedlings. However, Si priming was found to be effective in attenuating oxidative stress and enhancing germination parameters under salt stress. Indeed, the most pronounced effect was observed in primed seed with 20 mM Si. This concentration was then selected to assess the effect of Si priming on growth and yield in salt-stressed fenugreek grown under natural conditions. Si priming significantly enhanced plant biomass and yield-related parameters in salt-stressed plants as relative to non-primed plants. Interestingly, the biochemical characterization of harvested seeds revealed that Si priming not only improved growth and yield attributes but also enhanced the nutritional quality and antioxidant activity in harvested seed from salt-stressed plants. In summary, the results of this study provide compelling evidence that, as a promising and eco-friendly approach, Si-based seed priming mitigates the adverse effects of salinity on fenugreek growth and yield under natural conditions.
摘要 盐分限制了包括葫芦巴（Trigonella foenum-graecum L.）在内的珍贵芳香植物和药用植物的生长和产量。硅（Si）是管理盐胁迫的一种有前途的策略。然而，在自然条件下，有关硅-种子预处理对盐胁迫葫芦巴的生长和产量影响的知识还很少。因此，本研究旨在探讨在盐胁迫（100 和 150 毫摩尔氯化钠）条件下，Si-种子底物（0-60 毫摩尔 CaSiO3）是否有助于改善葫芦巴的表现。研究结果表明，盐胁迫会明显降低葫芦巴幼苗的发芽相关参数，并引发氧化胁迫。然而，在盐胁迫下，Si 引物能有效减轻氧化胁迫并提高发芽参数。事实上，用 20 mM Si 对种子进行催芽的效果最为明显。随后，我们选择了这一浓度来评估在自然条件下生长的盐胁迫葫芦巴种子中，硅引物对其生长和产量的影响。在盐胁迫植物中，相对于未添加 Si 的植物，添加 Si 能明显提高植物的生物量和产量相关参数。有趣的是，收获种子的生化特征显示，Si 引导不仅改善了生长和产量属性，还提高了盐胁迫植物收获种子的营养质量和抗氧化活性。总之，这项研究的结果提供了令人信服的证据，表明在自然条件下，以硅为基础的种子底肥可以减轻盐分对胡芦巴生长和产量的不利影响，是一种很有前途的生态友好型方法。
期刊介绍：
Russian Journal of Plant Physiology is a leading journal in phytophysiology. It embraces the full spectrum of plant physiology and brings together the related aspects of biophysics, biochemistry, cytology, anatomy, genetics, etc. The journal publishes experimental and theoretical articles, reviews, short communications, and descriptions of new methods. Some issues cover special problems of plant physiology, thus presenting collections of articles and providing information in rapidly growing fields. The editorial board is highly interested in publishing research from all countries and accepts manuscripts in English.
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