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. 2012 Dec 10;64(2):553–568. doi: 10.1093/jxb/ers348

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© 2012 The Authors.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 5. — Identifying metabolite changes occurring in or in tobacco leaves following inoculation with Psph. Results are shown for PCA of 150 metabolites detected by GC-MS in -fed and -fed tobacco leaves following infiltration with 10mM MgCl₂ (mock inoculated) (A), and -treated and Psph challenged plants (B) or -treated and Psph challenged plants (C). In each case, samples were analysed at 4, 8, and 24h following inoculation. In (B) and (C), clear separation between mock- and Psph-inoculated plants is delineated and labelled. In (A–C), the loading vectors (listed in Supplementary Table S1) used for the corresponding PC1 and PC2 are plotted. The ‘+’ marks the zero point where loading vectors associated with metabolites make no contribution to the plot shown in (B), whilst the circles correspond to 1 and 2 SD from this zero point. Thus, the metabolites that are major sources of variation are shown.

Inline graphic — Identifying metabolite changes occurring in or in tobacco leaves following inoculation with Psph. Results are shown for PCA of 150 metabolites detected by GC-MS in -fed and -fed tobacco leaves following infiltration with 10mM MgCl₂ (mock inoculated) (A), and -treated and Psph challenged plants (B) or -treated and Psph challenged plants (C). In each case, samples were analysed at 4, 8, and 24h following inoculation. In (B) and (C), clear separation between mock- and Psph-inoculated plants is delineated and labelled. In (A–C), the loading vectors (listed in Supplementary Table S1) used for the corresponding PC1 and PC2 are plotted. The ‘+’ marks the zero point where loading vectors associated with metabolites make no contribution to the plot shown in (B), whilst the circles correspond to 1 and 2 SD from this zero point. Thus, the metabolites that are major sources of variation are shown.