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. 2020 Jun 15;8(6):899. doi: 10.3390/microorganisms8060899

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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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Principal Components Analyses (PCA) to detect the proportion of variation in each PCA axis on the relative amount of each chemical per plant/treatment (%). Variables were explained by AMF treatments and cultivation conditions (G1—semi-open field, G2—open field) and their absence (control) (K1-semi-open field, K2- open field). The same method was used to test the effect of AMF treatment and its absence on the main chemical classes found in the Artemisia plants (monoterpene hydrocarbons, oxygenated monoterpenes and sesquiterpenes).