State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, Gansu, PR China.
Department of Botany, Government College Women University Sialkot, Sialkot, Pakistan.
Plant Physiol Biochem. 2023 Jan;194:470-479. doi: 10.1016/j.plaphy.2022.12.005. Epub 2022 Dec 7.
Due to environmental pollution, crop growth and productivity are threatened at different levels. Recapitulation of changes in plant bodies due to water pollution and mitigating strategies reveal the need for précised actions to save crop losses. The present study was carried out to estimate modulations in growth, mineral homeostasis, and nutrient profile of fruits in Capsicum annum L. grown with three concentrations of wastewater (25, 50, 100%) and two levels of silver nanoparticles (40 and 80 mg/L AgNPs). It has been reported that ion accumulation patterns from wastewater clearly vary among crops. Our findings manifested that the application of AgNPs significantly improved the mineral ions in different plant tissues, that ultimately helped to improve growth. Highest improvements were recorded for root shoot P (316 and 197%) at T9 (80 mg/L AgNPs + normal water), while K (273 and 262%), Mg (638 and 916%), and Ca (148 and 273%), at T11 (80 mg/L AgNPs + 50% Wastewater), in comparison with control. Such reduction in elemental uptake that remain detrimental even at low concentrations positively correlates with growth and nutrition of Capsicum plants. Another facet of our observation is dose-dependent improvement in nutritive attributes of fruits i.e., crude fibers, proteins, and carbohydrates by AgNPs. T8 (40 mg/L AgNPs + 100% Wastewater), improved nutritional attributes such as P (55%), Mn (44%), Zn (38%), Carbohydrates (62%), Crude fat (38%), and Fibers (49%) as compared to control. Application of silver nanoparticles (AgNPs) combined with untreated wastewater (WW) reduced the hazards of contaminants in plants. The finding of the current study suggested that AgNPs are a cost-efficient and environment friendly material having the potential to mitigate harmful impacts of WW on plants.
由于环境污染，作物的生长和生产力受到不同程度的威胁。综述水污染导致的植物机体变化和缓解策略，揭示了需要采取精确措施来减少作物损失。本研究旨在评估在三种浓度的废水（25%、50%和 100%）和两种银纳米颗粒（AgNPs）浓度（40 和 80 mg/L）下生长的辣椒体内生长、矿物质稳态和营养状况的变化。据报道，废水中离子积累模式在不同作物之间明显不同。我们的研究结果表明，AgNPs 的应用显著改善了不同植物组织中的矿物质离子，这最终有助于提高生长。在 T9（80 mg/L AgNPs+正常水）下，根-茎磷（316%和 197%）的提高最大，而在 T11（80 mg/L AgNPs+50%废水）下，钾（273%和 262%）、镁（638%和 916%）和钙（148%和 273%）的提高最大，与对照相比。即使在低浓度下，元素吸收的减少仍然对辣椒植物的生长和营养有害，这与生长和营养呈正相关。我们观察到的另一个方面是，AgNPs 剂量依赖性地改善了果实的营养特性，如粗纤维素、蛋白质和碳水化合物。与对照相比，T8（40 mg/L AgNPs+100%废水）提高了磷（55%）、锰（44%）、锌（38%）、碳水化合物（62%）、粗脂肪（38%）和纤维（49%）等营养特性。银纳米颗粒（AgNPs）与未经处理的废水（WW）的联合应用降低了植物中污染物的危害。本研究的结果表明，AgNPs 是一种具有成本效益和环境友好的材料，具有减轻 WW 对植物的有害影响的潜力。
