Ali Mohamed M, Jeddi Kaouthar, Attia Mohamed S, Elsayed Salah M, Yusuf Mohammad, Osman Mahmoud S, Soliman Mona H, Hessini Kamel
Horticulture Research Institute, Agricultural Research Center, Giza, Egypt.
Laboratory of Plant Biodiversity and Dynamic of Ecosystems in Arid Area, Faculty of Sciences of Sfax, B.P. 1171, Sfax 3000, Tunisia.
Saudi J Biol Sci. 2021 Jun;28(6):3204-3213. doi: 10.1016/j.sjbs.2021.04.040. Epub 2021 Apr 24.
In the present study, ameliorative capabilities of wuxal amino (bio stimulant) under salt stress has been investigated through adaptive mechanisms and antioxidant potential in tomato plants. In the experiment, two different concentrations (2 cm L and 3 cm L) of wuxal amino through foliar application and soil irrigation were applied to the salt (150 mM) treated tomato plants and then morphological traits, photosynthetic pigments, osmolytes, secondary metabolites, oxidative stress and antioxidant enzymes activity were assessed at 60 days after planting. The results revealed that salt stress decreased the growth parameters, photosynthetic pigments, soluble sugars and soluble protein whereas, content of proline, ascorbic acid, total phenols, malondialdehyde, hydrogen peroxide and the activity of antioxidant enzymes activity increased under salt stress. Moreover, Wuxal amino application through foliar or soil to salt stressed plants improved morphological traits, photosynthetic pigments, osmolytes, total phenol and antioxidant enzymes activity. Interestingly, the deleterious impact of salinity on tomato plants were significantly reduced and it can be evident from reduced MDA and HO levels. These responses varied with the mode (foliar or soil) of application of Wuxal amino under different concentrations (2 cm L and 3 cm L). It was concluded that application of Wuxal amino (2 cm L, foliar) and (3 cm L; soil) proved best and could be commercially used as eco-friendly tool for the protection of tomato plants grown under salinity stress.
在本研究中,通过番茄植株的适应机制和抗氧化潜力,研究了武沙尔氨基酸(生物刺激剂)在盐胁迫下的改善能力。在实验中,通过叶面喷施和土壤浇灌,将两种不同浓度(2 cmL和3 cmL)的武沙尔氨基酸施用于经150 mM盐处理的番茄植株,然后在种植60天后评估形态特征、光合色素、渗透调节物质、次生代谢产物、氧化应激和抗氧化酶活性。结果表明,盐胁迫降低了生长参数、光合色素、可溶性糖和可溶性蛋白,而脯氨酸、抗坏血酸、总酚、丙二醛、过氧化氢含量以及抗氧化酶活性在盐胁迫下增加。此外,通过叶面或土壤向盐胁迫植株施用武沙尔氨基酸可改善形态特征、光合色素、渗透调节物质、总酚和抗氧化酶活性。有趣的是,盐度对番茄植株的有害影响显著降低,这可从丙二醛和过氧化氢水平的降低中明显看出。这些反应因不同浓度(2 cmL和3 cmL)下武沙尔氨基酸的施用方式(叶面或土壤)而异。得出的结论是,施用武沙尔氨基酸(2 cmL,叶面)和(3 cmL;土壤)效果最佳,可作为保护盐胁迫下生长的番茄植株的环保工具进行商业应用。