Abstract
Abstract In the present era, due to the increasing incidence of environmental stresses worldwide, the developmental growth and production of agriculture crops may be restrained. Selenium nanoparticles (SeNPs) have precedence over other nanoparticles because of the significant role of selenium in activating the defense system of plants. In addition to beneficial microorganisms, the use of biogenic SeNPs is known as an environmentally friendly and ecologically biocompatible approach to enhance crop production by alleviating biotic and abiotic stresses. This review provides the latest development in the green synthesis of SeNPs by using the results of plant secondary metabolites in the biogenesis of nanoparticles of different shapes and sizes with unique morphologies. Unfortunately, green synthesized SeNPs failed to achieve significant attention in the agriculture sector. However, research studies were performed to explore the application potential of plant-based SeNPs in alleviating drought, salinity, heavy metal, heat stresses, and bacterial and fungal diseases in plants. This review also explains the mechanistic actions that the biogenic SeNPs acquire to alleviate biotic and abiotic stresses in plants. In this review article, the future research that needs to use plant-mediated SeNPs under the conditions of abiotic and biotic stresses are also highlighted.
Highlights
Climate change is likely to exert a detrimental impact on productive resources and on agriculture production in developing countries worldwide [1]
Selenium (Se) is an essential trace element that is deliberately necessary for the normal regular functioning of the plants, which protects them from the detrimental effects of climatic stresses [9]
This review paper focuses on the green synthesis approaches with special emphasis on the plant extract-mediated synthetic approaches, unique morphological importance, and varied application potential of biogenic Selenium nanoparticles (SeNPs) in agriculture
Summary
Climate change is likely to exert a detrimental impact on productive resources and on agriculture production in developing countries worldwide [1]. The major climatic stresses that exert pressure on agriculture are increasing temperature in arable areas, extreme events such as heat waves, drought, and accumulation of heavy metals, and various biotic stresses such as fungal and bacterial maladies [5,6]. These devastating plant stresses could affect both crop quantity and quality worldwide. This review paper focuses on the green synthesis approaches with special emphasis on the plant extract-mediated synthetic approaches, unique morphological importance, and varied application potential of biogenic SeNPs in agriculture. A detailed overview of the study is given in Scheme 1
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