Changes in secondary metabolite production in response to salt stress in Alcea rosea L.
Abstract
The effect of three levels of salinity on physio-biochemical traits in 10 Alcea rosea (hollyhock) varieties were evaluated. It was observed that salt stress increased both the total phenolic content (TPC) and total flavonoid content (TFC) in some varieties and decreased them in others. The greatest increases in both TPC and TFC were recorded in the Saman variety (104% and 62%, respectively) when cultivated under severe salt stress, indicating that this is the most salt-tolerant variety amongst those tested. The most abundant phenolic compound recorded was ellagic acid, and the phenolic compounds that showed the greatest increases in concentration due to salt stress were p-coumaric acid (87% in the Isfahan variety) and chlorogenic acid (142% in the Mahallat variety). Salt stress was also shown to decrease the production of diphenyl-2-picrylhydrazyl (DPPH) in all varieties. The highest concentration of DPPH (133%) was recorded in the Shiraz 1 variety, grown under conditions of severe salt stress. Salt stress also increased the mucilage content present in the petals, leaves, and seeds of some of the selected varieties. These data suggest that the selection of salt-tolerant varieties of hollyhock for direct cultivation or for use in future breeding programs is feasible.Citation
Sadeghi, A., Razmjoo, J., Karimmojeni, H., Baldwin, T.C., Mastinu, A. (2024) Changes in Secondary Metabolite Production in Response to Salt Stress in Alcea rosea L. Horticulturae, 10(2):139. https://doi.org/10.3390/horticulturae10020139Publisher
MDPIJournal
HorticulturaeAdditional Links
https://www.mdpi.com/2311-7524/10/2/139Type
Journal articleLanguage
enDescription
© 2024 The Authors. Published by MDPI. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.3390/horticulturae10020139ISSN
2311-7524EISSN
2311-7524Sponsors
This research received no external funding, and the APC was funded by University of Brescia.ae974a485f413a2113503eed53cd6c53
10.3390/horticulturae10020139
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Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/