Mitigating gadolinium toxicity in guar (Cyamopsis tetragonoloba L.) through the symbiotic associations with arbuscular mycorrhizal fungi: physiological and biochemical insights.

Autor: AbdElgawad H; Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef, 65541, Egypt. hamada.abdelgawad@science.bsu.edu.eg., Crecchio C; Department of Soil, Plant and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, Bari, 70126, Italy., Nhs M; Botany & Microbiology Department, Faculty of science, Assiut University, P.O. Box 71516, Assiut, Egypt., Abdel-Maksoud MA; Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh, Riyadh Province, 11451, Saudi Arabia., Malik A; Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh, Riyadh Province, 11451, Saudi Arabia., Sheteiwy MS; Department of Integrative Agriculture, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab Emirates. msalah@uaeu.ac.ae., Hamoud YA; The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China.; College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China., Sulieman S; Department of Integrative Agriculture, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab Emirates.; Department of Agronomy, Faculty of Agriculture, University of Khartoum, Shambat, Khartoum North, 13314, Sudan., Shaghaleh H; College of Environment, Hohai University, Nanjing, 210098, China., Alyafei M; Department of Integrative Agriculture, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab Emirates. mohammed.s@uaeu.ac.ae., Khanghahi MY; Department of Soil, Plant and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, Bari, 70126, Italy.; Department of European and Mediterranean Cultures: Architecture, Environment and Cultural Heritage (DiCEM), Università degli Studi della Basilicata, via Lanera 20, Matera, 75100, Italy.
Jazyk: angličtina
Zdroj: BMC plant biology [BMC Plant Biol] 2024 Sep 23; Vol. 24 (1), pp. 877. Date of Electronic Publication: 2024 Sep 23.
DOI: 10.1186/s12870-024-05552-0
Abstrakt: Background: Gadolinium (Gd) is an increasingly found lanthanide element in soil; thus, understanding its impact on plant physiology, biochemistry, and molecular responses is crucial. Here, we aimed to provide a comprehensive understanding of Gd (150 mg kg - 1 ) impacts on guar (Cyamopsis tetragonoloba L.) plant yield and metabolism and whether the symbiotic relationship with arbuscular mycorrhizal fungi (AMF) can mitigate Gd toxicity of soil contamination.
Results: AMF treatment improved mineral nutrient uptake and seed yield by 38-41% under Gd stress compared to non-inoculated stressed plants. Metabolic analysis unveiled the defense mechanisms adopted by AMF-treated plants, revealing carbon and nitrogen metabolism adaptations to withstand Gd contamination. This included an increase in the synthesis of primary metabolites, such as total sugar (+ 39% compared to control), soluble sugars (+ 29%), starch (+ 30%), and some main amino acids like proline (+ 57%) and phenylalanine (+ 87%) in the seeds of AMF-treated plants grown under Gd contamination. Furthermore, fatty acid and organic acid profile changes were accompanied by the production of secondary metabolites, including tocopherols, polyamines, phenolic acids, flavones, and anthocyanins.
Conclusions: Overall, the coordinated synthesis of these compounds underscores the intricate regulatory mechanisms underlying plant-AMF interactions and highlights the potential of AMF to modulate plant secondary metabolism for enhanced Gd stress tolerance.
(© 2024. The Author(s).)
Databáze: MEDLINE
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