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. 2022 Nov 23;13:1062603. doi: 10.3389/fpls.2022.1062603

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Copyright © 2022 Li, Song, Guo, Xu, Ai and Zhou

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Enrichment analysis of differential metabolites in corn kernels after humic acid treatment. (A), Enrichment analysis of up-regulated differential metabolites. (B), Enrichment analysis of down-regulated differential metabolites. The abscissa is the ratio of the number of differential metabolites to the number of total metabolites identified in the pathway. The color of the dots represents the p-value of the hypergeometric test. The size of the dots represents the number of differential metabolites in the corresponding pathway.