Journal Article Epublish 21 citations
PubMed: 36743542 DOI: 10.3389/fpls.2022.1098772
The comparative effects of manganese nanoparticles and their counterparts (bulk and ionic) in plants seed priming and foliar application.
Front Plant Sci 13:1098772
Authors: Hajar Salehi, Abdolkarim Cheheregani Rad, Ali Raza, Ivica Djalovic, P V Vara Prasad
Affiliations
- Laboratory of Plant Cell Biology, Department of Biology, Bu-Ali Sina University, Hamedan, Iran.
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China.
- Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, Novi Sad, Serbia.
- Department of Agronomy, Kansas State University, Manhattan, KS, United States.
Abstract
The world has experienced an unprecedented boom in nanotechnology. Nanoparticles (NPs) are likely to act as biostimulants in various plants due to having high surface/volume value. However, understanding the actual effect of NPs is essential to discriminate them from other counterparts in terms of being applicable, safe and cost-effective. This study aimed to assay the impact of manganese(III) oxide (MnO)-NPs seed-priming (SP) and a combination of SP and foliar application (SP+F) on performance at several times intervals and comparison with other available manganese (Mn) forms. Our findings indicate that SP with MnSO and MnO-NPs stimulates the processes that occur prior to germination and thus reduces the time for radicle emergence. In both applications (i.e., SP and +F), none of the Mn treatments did show adverse phytotoxic on growth at morpho-physio and biochemical levels except for MnO which delayed germination and further plant growth, subsequently. Besides, from physio-biochemical data, it can be inferred that the general mechanism mode of action of Mn is mainly attributed to induce the photosynthetic processes, stimulate the superoxide dismutase (SOD) activity, and up-regulation of proline and phenolic compounds. Therefore, our results showed that both enzymatic and non-enzymatic antioxidants could be influenced by the application of Mn treatments in a type-dependent manner. In general, this study revealed that MnO-NPs at the tested condition could be used as biostimulants to improve germination, seedling development and further plant growth. However, they are not as effective as MnSO treatments. Nonetheless, these findings can be used to consider and develop MnO-NPs priming in future studies to improve seed germination and seedling quality in plants.
MeSH
Growth, Seeds, Therapeutics, Nanoparticles, Nanotechnology, Germination, Up-Regulation