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. 2020 Jun 5;21(11):4038. doi: 10.3390/ijms21114038

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Venn diagrams representing the differentially represented metabolites detected in the root exudates of plants exposed to the different nutritional conditions. (A) Number of up-regulated metabolites detected by GC-MS techniques and normalized on control samples. (B) Number of down-regulated metabolites detected by GC-MS techniques and normalized on control samples. (C) Number of up-regulated metabolites detected by HPLC-MS techniques and normalized on control samples. (D) Number of down-regulated metabolites detected by HPLC-MS techniques and normalized on control samples.