Assessment of Morpho-Physiological and Biochemical Responses of Mercury-Stressed L. to Silver Nanoparticles and Applications.

Heavy metals are primarily generated and deposited in the environment, causing phytotoxicity. This work evaluated fenugreek plants' morpho-physiological and biochemical responses under mercury stress conditions toward Ag nanoparticles and applications. The fabrication of Ag nanoparticles by was monitored and described by UV/Vis analysis, FTIR, and SEM. The effect of mercury on vegetative growth was determined by measuring the root and shoots length, the number and area of leaves, the relative water content, and the weight of the green and dried plants; appraisal of photosynthetic pigments, proline, hydrogen peroxide, and total phenols content were also performed. In addition, the manipulation of Ag nanoparticles, and their combination were tested for mercury stress. Here, Ag nanoparticles were formed at 420 nm with a uniform cuboid form and size of 85 nm. Interestingly, the gradual suppression of vegetal growth and photosynthetic pigments by mercury, Ag nanoparticles, and were detected; however, carotenoids and anthocyanins were significantly increased. In addition, proline, hydrogen peroxide, and total phenols content were significantly increased because mercury and enhance this increase. Ag nanoparticles achieve higher levels by the combination. Thus, and Ag nanoparticles could have the plausible ability to relieve and combat mercury's dangerous effects in fenugreek.