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. 2019 Mar 6;10:1085. doi: 10.1038/s41467-019-08977-6

Fig. 5.

Fig. 5

AZ-remodeling sustains NT-release potentiation over longer timescales. a Sketch of investigated conditions for rapid plasticity: control synapses (left) are compared with rapid plasticity (10 min of PhTx (red “X”); right). Rapid plasticity increases the number of SVs released (red). b, c (left) Representative traces of eEPSP (evoked) and mEPSP (spont.) of the indicated genotypes with and without PhTx-treatment. (Right) Quantifications of percentage change of mEPSP amplitude, eEPSP amplitude and quantal content (QC) upon PhTx-treatment. Values are divided by the corresponding measurement in the absence of PhTx for each genotype (dashed red line corresponds to 100%/no change). d (left) Confocal images of muscle 4 NMJs of abdominal segment 2–5 from third instar larvae at wild-type and srpk79DATC NMJs labelled with the indicated antibodies without (control; black) and with 10 min PhTx (+PhTx; blue) treatment. (Right) Quantification of percentage change of synaptic BRP and Unc13A levels in wild-type (blue) and srpk79DATC (orange) upon PhTx-treatment compared to baseline of control treatment for each genotype (dashed red line). Data are modified from Fig. 2. e Sketch of investigated conditions for chronic plasticity: wild-type synapses (left) are compared with gluRIIANull mutants. Chronic plasticity greatly increases the number of SVs released. f, g Same as in (b, c) but compared to baseline of each control genotype. h Same as in (d) but compared to baseline fluorescence values of wild-type for gluRIIANull and srpk79DATC for gluRIIANull;srpk79DATC. See also Supplementary Fig. 7. Source data as exact normalized and raw values, detailed statistics including sample sizes and P values are provided in the Source Data file. See also Supplementary Figure 10 and 11 for non-normalized values. Scale bars: eEPSP: 25 ms, 5 mV; mEPSP: 50 ms, 1 mV; d, h 5 µm. Statistics: Student’s unpaired T-test was used for comparisons in ((b) quantal content change), (f), (g) and Mann–Whitney U test for all other comparisons. *P ≤ 0.05; **P ≤ 0.01; ***P ≤ 0.001; n.s., not significant, P > 0.05. All panels show mean ± s.e.m.