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. 2018 Sep 5;9:1321. doi: 10.3389/fpls.2018.01321

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Copyright © 2018 Allegra, Gallotta, Carimi, Mercati, Inglese and Martinelli.

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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(A) Principal Component Analysis (PCA) of selected metabolites for T (reference fruits after harvest), MC (fruits treated with mucilage coating after storage), CTR (blank after storage). Metabolites associated with separation of treatments were indicated in the plot, underlining their significance values (0.6 < cos2 < 0.9). (B) Person correlation matrix of 10 selected metabolites correlated to MC, T, and CTR separation. Positive correlations are displayed in blue and negative correlations in red color. Color intensity and the size of the circle are proportional to the correlation coefficients. The significant correlations (p < 0.05) were highlighted.