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Commey, Leslie ; Mechref, Yehia ; Burow, Mark , et al. J. Agric. Food Chem.,2024,72(43):23844-23858. DOI: 10.1021/acs.jafc.4c05517 PubMed ID: 39412821
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Abstract: The peanut seed coat acts as a physical and biochemical barrier against Aspergillus flavus infection; however, the nature of the inhibitory chemicals in the peanut seed coat in general is not known. This study identified and characterized peanut seed coat metabolites that inhibit A. flavus growth and aflatoxin contamination. Selected peanut accessions grown under well-watered and water-deficit conditions were assayed for A. flavus resistance, and seed coats were metabolically profiled using liquid chromatography mass spectrometry. Kyoto Encyclopedia of Genes and Genome phenylpropanoid pathway reference analysis resulted in the identification of several seed coat metabolic compounds, and ten selected metabolites were tested for inhibition of A.flavus growth and aflatoxin contamination. Radial growth bioassay demonstrated that 2,5-dihydroxybenzaldehyde inhibited A. flavus growth (98.7%) and reduced the aflatoxin contamination estimate from 994 to 1 μg/kg. Scanning electron micrographs showed distorted hyphae and conidiophores in cultures of 2,5-dihydroxybenzaldehyde-treated A. flavus, indicating its potential use for field application as well as seed coat metabolic engineering.
Keywords: aflatoxin, A. flavus ; metabolomics ; seed coat ; liquid chromatography mass spectrometry (LC-MS) ; radial growth bioassay ; secondary metabolites
Purchased from AmBeed: 1194-98-5 ; 6754-58-1 ; 99-10-5 ; 480-41-1 ; 486-35-1
CAS No. : | 99-10-5 | MDL No. : | MFCD00002512 |
Formula : | C7H6O4 | Boiling Point : | - |
Linear Structure Formula : | HO2CC6H3(OH)2 | InChI Key : | UYEMGAFJOZZIFP-UHFFFAOYSA-N |
M.W : | 154.12 | Pubchem ID : | 7424 |
Synonyms : |
3,5-DHBA
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
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