Potassium silica nanostructure improved growth and nutrient uptake of sorghum plants subjected to drought stress.

Autor:	Alharbi K; Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia., Alnusairi GSH; Department of Biology, College of Science, Jouf University, Sakaka, Saudi Arabia., Alnusaire TS; Department of Biology, College of Science, Jouf University, Sakaka, Saudi Arabia., Alghanem SMS; Department of Biology College of Science, Qassim University, Burydah, Saudi Arabia., Alsudays IM; Department of Biology College of Science, Qassim University, Burydah, Saudi Arabia., Alaklabi A; Department of Biology, Faculty of Science, University of Bisha, Bisha, Saudi Arabia., Soliman MH; Botany and Microbiology Department, Faculty of Science, Cairo University, Giza, Egypt.; Biology Department, Faculty of Science, Taibah University, Al-Sharm, Yanbu El-Bahr, Yanbu, Saudi Arabia.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2024 Jul 17; Vol. 15, pp. 1425834. Date of Electronic Publication: 2024 Jul 17 (Print Publication: 2024).
DOI:	10.3389/fpls.2024.1425834
Abstrakt:	Introduction: Recent advancements in nanotechnology present promising opportunities for enhancing crop resilience in adverse environmental conditions. Methods: In this study, we conducted a factorial experiment to investigate the influence of potassium nanosilicate (PNS) on sorghum plants exposed to varying degrees of drought stress A randomized complete block design with three replications was employed to subject the sorghum plants to different drought conditions. The three levels of stress were designated as non-stress (NS at -0.03 MPa), moderate stress (MD at -0.6 MPa), and severe stress (SD at -1.2 MPa). The plants were administered PNS at concentrations of 0 mM (control), 3.6 mM Si, and 7.2 mM Si. Results and Discussion: As drought stress intensified, we observed significant reductions in multiple plant parameters, including height, fresh weight, dry weight, leaf number, stem diameter, cluster length, seed weight, and nutrient uptake, with the most pronounced effects observed under SD conditions. Interestingly, nitrogen (N) and potassium (K) levels exhibited an increase under drought stress and PNS application, peaking at MD, alongside Si concentrations. Notably, PNS application facilitated enhanced nutrient uptake, particularly evident in the significant increase in nitrogen concentration observed at 3.6 mM PNS. Furthermore, the application of PNS significantly enhanced the fresh weight and nutrient concentrations (notably K and Si) in sorghum seeds under drought stress, despite varying statistical significance for other nutrients. These findings shed light on the mechanisms through which PNS exerts beneficial effects on plant performance under drought stress. By elucidating the complex interactions between PNS application, drought stress, and plant physiology, this study contributes significantly to the development of sustainable agricultural practices aimed at bolstering crop resilience and productivity in water-limited environments. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2024 Alharbi, Alnusairi, Alnusaire, Alghanem, Alsudays, Alaklabi and Soliman.)
Databáze:	MEDLINE
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