Effects of iron nanoparticles on Mentha piperita L. under salinity stress

Abstract

The progress of nanotechnology presents many nanoparticles that are important in medicine, agriculture and industry. Quickly and entirely absorbed by plants, nano-compounds and remedy their nutrient deficiency and satisfy this need. Iron oxide nanoparticles with suitable surface chemistry can be used as a rich source of iron for plants due to its gradual release of Fe in a wide pH range (pH 3 to 11). The present study investigated the impact of iron oxide nanoparticles (Fe 2 O 3 NPs in 0, 10, 20 and 30 µM concentrations) on physiological parameters of peppermint (Mentha piperita) under salt stress (0, 50, 100 and 150 mM concentrations of NaCl). Fe 2 O 3 NPs caused increases in leaf fresh weight and dry weight, phosphorus, potassium, iron, zinc, and calcium contents of the peppermint under salinity stress but did not have an effect on the sodium element. 30 µM concentration of Fe 2 O 3 NP was more impressive. Lipid peroxidation and proline contents of the peppermint under salinity decreased significantly by applying Fe 2 O 3 NPs. The maximum activities of total antioxidant enzymes (I %), catalase, superoxide dismutase, and guailcol peroxidase were observed in plants treated with 150 mM of NaCl, but application of Fe 2 O 3 NPs declined these antioxidant activities. The results suggest that the appropriate concentration of iron nanoparticles could be used for stress resistance of the peppermint.

Influence of exogenously applied nitric oxide on strawberry (Fragaria × ananassa) plants grown under iron deficiency and/or saline stress

“…In our investigation, all stress conditions decreased the total iron content and activity of ferric reductase in strawberry plants. Similar results have been earlier observed in Mentha piperita (Askary et al ) under saline conditions and peanut (Zhang et al ) and tomato (Ye et al ) under ID stress. However, exogenous application of NO enhanced the total iron content and activity of ferric reductase in strawberry plants under all stressful conditions as have been earlier observed in peanut (Zhang et al , Song et al ) and tomato (Ye et al ) under ID stress.…”

“…In our study, contents of H 2 O 2 and MDA of strawberry plants increased under S and ID stresses applied individually or in combination. A similar trend in both biomolecules has been observed in cucumber (Shu et al ) and M. piperita (Askary et al ) under saline conditions, and in sunflower (Ranieri et al ), flax (Salama et al ) and peanut (Zhang et al , Kong et al ) under ID. However, exogenous application of NO significantly reduced the contents of H 2 O 2 and MDA in strawberry plants under S and ID stresses.…”

“…In the present investigation, salinity alone or in combination with ID stress reduced the activity of CAT and enhanced that of POD, while the SOD activity was enhanced under ID stress. In some earlier studies, a decline in CAT activity has been observed in different plants such as M. piperita (Askary et al ), wheat (Hameed et al ), sesame (Koca et al ) under saline conditions, and in flax (Salama et al ) and peanut (Zhang et al , Kong et al ) under iron deficient conditions. As in our study, enhancement in POD activity was found in wheat (Hameed et al ) and sesame (Koca et al ) under saline conditions, but in contrast suppression in POD activity was noted in flax (Salama et al ) and peanut (Zhang et al , Kong et al ) under iron deficit conditions.…”

“…Photosynthetic activity of most plants decreases under saline conditions because PSII activity is disturbed and thylakoid membrane along with its pigments is damaged due to formation of ROS under salinity stress (Dombrowski , Naeem et al , Shaheen et al , Wu et al , Deinlein et al , AbdElgawad et al , Askary et al , Gomes et al ). Like many other stresses, the deficiency of iron can also generate ROS and disturb the electron transport chain in the chloroplast because iron plays an important role in it (Graziano and Lamattina ).…”

Iron oxide nanoparticles: a novel elicitor to enhance anticancer flavonoid production and gene expression in Dracocephalum kotschyi hairy‐root cultures

“…Nano‐compounds are quickly absorbed by plants and supply the plants with the required nutrients. An increase in plant growth may therefore occur with the use of nanomaterials . Heavy elements like iron, selenium, and nickel are essential for the structural and biochemical performance of the plant cells, such as, plant growth, redox reactions, and different metabolic pathways.…”