35 research outputs found

    Summary of alterations observed in mycorrhized (AM) and phosphate-fertilized (P<sub>i</sub>) as compared to control plants.

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    <p>The summarized alterations are for the time points with similarly high arbuscules abundance in Experiment 1 (3 wpi) and Experiment 2 (5 wpi). ‘+’ indicates a stimulatory effect, whereas ‘No’ indicates no effect of the respective treatment as compared to control plants. It is of note that a similar pattern of alterations was observed at 3 wpi in Experiment 2. For mycorrhization conditions, see Tables <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115314#pone.0115314.t001" target="_blank">1</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115314#pone.0115314.t002" target="_blank">2</a>.</p><p>Summary of alterations observed in mycorrhized (AM) and phosphate-fertilized (P<sub>i</sub>) as compared to control plants.</p

    Supplementary information from Modulation of lipid biosynthesis by stress in diatoms

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    Environmental factors modify lipid and fatty acid metabolism. Table SD1. Microalgal lipid content (% of biomas) and total lipid and galactolipid EPA levels (% molar of total fatty acids) for control (22°C) and stressed cultures (10°C) of P. tricornutum after 1, 2, 4 and 8 days of temperature stress

    Date of growth axis appearance for control, mycorrhized (AM) and phosphate-fertilized plants (P<sub>i</sub>).

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    <p>(A) The date when each growth axis appeared was calculated as the x-intercept from linearized plots of those shown in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115314#pone.0115314.s001" target="_blank">S1 Fig.</a> Values with different letters for each axis are significantly different across treatments according to one-way ANOVA followed by Student-Newman-Keuls test (<i>P</i><0.05). (B) Difference in the date of growth axis appearance. The values obtained in (A) for each axis of the control plants were subtracted from the corresponding values obtained for the AM- and Pi-fertilized plants. *, Significantly different from each other. dpi, days post inoculation. For mycorrhization conditions, see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115314#pone.0115314.t001" target="_blank">Table 1</a>.</p

    Photoinhibition of PSII in Col-0, Ws-4 and L<i>er</i>-0 accessions.

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    <p>Leaves detached from plants grown hydroponically at an irradiance of 120 µmol photons m<sup>−2</sup> s<sup>−1</sup> (GL) were exposed for 3 h to GL or high light (HL = 950 µmol photons m<sup>−2</sup> s<sup>−1</sup>) treatments in the presence or absence of lincomycin (LN). (A) The <i>F</i><sub>v</sub><i>/F</i><sub>m</sub> parameter was determined in leaves after 5 min dark adaptation. The levels of <i>F</i><sub>v</sub><i>/F</i><sub>m</sub> were calculated relative to a value of 0.82, obtained in 16 h dark-adapted Col-0 leaves, and plotted as means ±SD (n = 3). (B) Thylakoid membranes were isolated from the treated leaves and subjected to western blotting with anti-D1 and with anti-Lhcb2 (as loading control) (0.25 µg Chl/lane). (C) Transmission electron micrographs of chloroplast ultrastructure from plants exposed to 3 h HL. Scale bar: 1 µm.</p

    Quantitative LC-MS of PSII core protein phosphorylation of Col-0, Ws-4 and L<i>er</i>-0 accessions.

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    <p>Data represent means ±SD of four independent preparations.</p>*<p>, Significantly different from Col-0 and L<i>er</i>-0 (Student's t-test P<0.05).</p><p>The plants were grown hydroponically for six weeks at an irradiance of 120 µmol photons m<sup>−2</sup> s<sup>−1</sup> and treated for 3 h at an irradiance of 950 µmol photons m<sup>−2</sup> s<sup>−1</sup>. Thylakoid membranes were isolated in the presence of NaF. The levels of phosphorylated PSII core proteins were analyzed by quantitative mass spectrometry and expressed relative to Col-0.</p
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