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. 2017 Apr 20;8:586. doi: 10.3389/fpls.2017.00586

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Copyright © 2017 Goufo, Moutinho-Pereira, Jorge, Correia, Oliveira, Rosa, António and Trindade.

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) or licensor 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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Effects of drought stress on cowpea leaf metabolites. Data are presented as averaged logarithmic fold-change ratios of metabolite levels in drought-stressed and control plants. Unidentified and undetected metabolites (with the exception of Unknown 7) are omitted for visual clarity. PRO = proanthocyanidins. Measurements were taken on day 6 (D6) or 12 (D12) of water stress (n = 4–6). Responses are represented by bars that indicate increased levels in drought-stressed plants (positive values) or decreased levels (negative values). Asterisks indicate values that were determined to be statistically different using t-tests (P < 0.05).