Biochemical responses of pea plants to drought stress and in the presence of molybdenum trioxide nanoparticles

Favorable physiological and morphological effects of molybdenum nanoparticles on tobacco (Nicotiana tabacum L.): root irrigation is superior to foliar spraying

“…A previous study demonstrated that CeO 2 NPs, MoS 2 , ZnO, Fe 2 O 3 , and TiO 2 NPs stimulated the photosynthetic rates of crops at relatively low exposure levels ( Zheng et al., 2005 ; Alidoust and Isoda, 2013 ; Tarafdar et al., 2014 ; Cao et al., 2017 ; Li et al., 2018 ; Sun et al., 2020 ). It was also reported that other engineering nanomaterials, such as CuO, Cu, MoO 3 and CeO 2 NPs, could exert a negative impact on photosynthesis at high concentrations by reducing the chlorophyll and carotenoid contents in rice, soybean, corn, and tomato ( Du et al., 2015 ; Yang et al., 2020b ; Rai et al., 2021 ; Sutulienė et al, 2023 ), or as by damaging photosynthesis-related genes ( Wang et al., 2016 ). The underlying mechanism of this facilitating effect may be attributed to the enhancement of photosynthetic pigments and the function of NPs in regulating biological processes such as stomatal aperture, the synthesis of photosynthesis-related enzymes, enzymatic reactions, and water uptake.…”

“…* and * * indicate significant differences between the control and Mo NPs treatments at the p< 0.05 and p< 0.01 levels according to one-way ANOVA followed by Tukey's test. Sutuliene ̇et al, 2023), or as by damaging photosynthesis-related genes (Wang et al, 2016). The underlying mechanism of this facilitating effect may be attributed to the enhancement of photosynthetic pigments and the function of NPs in regulating biological processes such as stomatal aperture, the synthesis of photosynthesis-related enzymes, enzymatic reactions, and water uptake.…”

Assessment of Various Nanoprimings for Boosting Pea Germination and Early Growth in Both Optimal and Drought-Stressed Environments

“…Furthermore, since nanoparticles are the main actors in plant morphology, growth, and physiology, they can modify leaf protein, alter chlorophyll and total phenolic content (TPC), as well as change the formation of ROS, peroxidase, SOD, CAT, and other enzymes. This explains why peas primed with NP Ultra in drought-stressed conditions had greater shoots and roots [ 23 , 42 , 79 , 80 ]. The positive effect on plant growth of peas in drought-stressed conditions was also observed for FeO NPs [ 79 ] and MoO 3 NPs [ 80 ].…”

“…This explains why peas primed with NP Ultra in drought-stressed conditions had greater shoots and roots [ 23 , 42 , 79 , 80 ]. The positive effect on plant growth of peas in drought-stressed conditions was also observed for FeO NPs [ 79 ] and MoO 3 NPs [ 80 ]. Molybdenum is a cofactor of several enzymes, including nitrate reductase, nitrogenase, dehydrogenase, and sulfite reductase, where it has structural and catalytical functions and is directly included in nitrogen metabolism and redox reactions [ 81 ].…”

Nanoparticles as a Tool for Alleviating Plant Stress: Mechanisms, Implications, and Challenges

“…Likewise, supplementation of culture media with silver nanoparticles suggested that higher concentrations (more than 110 mgdm −3 ) cause decreased activity of antioxidant enzymes (peroxidase, catalase, super oxidase dismutase, ascorbate peroxidase) in lavender. The spray application of boron nanoparticles at 12.5 ppm significantly increased the antioxidant activity of pea plants in drought stress [ 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 ]. The application of silica nanoparticles in rice for enhanced growth in water regime conditions has been reported [ 68 ].…”