AI Article Synopsis
- The study investigates the antioxidant and antifungal properties of the cliff rose, a halophyte that thrives in saline environments, focusing on its hydromethanolic flower extract.
- Key phytochemicals identified include fatty acids and phenolic compounds, which were tested for antifungal efficacy against various soil-borne plant pathogens.
- The extract, especially when combined with chitosan oligomers, showed strong antifungal activity, outperforming some synthetic fungicides, indicating its potential as a natural agricultural solution.
Article Abstract
The cliff rose (), like other halophytes, has a phenolics-based antioxidant system that allows it to grow in saline habitats. Provided that antioxidant properties are usually accompanied by antimicrobial activity, in this study we investigated the phytochemicals present in a hydromethanolic extract of flowers and explored its antifungal potential. The main phytocompounds, identified by gas chromatography-mass spectrometry, were: hexadecanoic acid, octadecanoic acid, 9-octadecenoic acid, 3-(3,4-dihydroxy-phenyl)-acrylic acid ethyl ester, and benzeneacetaldehyde. The antifungal activity of the extract and its main constituents-alone and in combination with chitosan oligomers-was tested against six pathogenic taxa associated with soil-borne diseases of plant hosts in the family Cucurbitaceae: , f. sp. , , , , and . In in vitro tests, EC effective concentrations in the 166-865 μg·mL range were obtained for the chitosan oligomers- extract conjugate complexes, lower than those obtained for fosetyl-Al and azoxystrobin synthetic fungicides tested for comparison purposes, and even outperforming mancozeb against . In ex situ tests against conducted on artificially inoculated cucumber slices, full protection was achieved at a dose of 250 μg·mL. Thus, the reported results support the valorization of as a source of biorationals for Cucurbitaceae pathogens protection, suitable for both organic and conventional agriculture.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180270 | PMC |
| http://dx.doi.org/10.3390/molecules28093730 | DOI Listing |
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