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Fig. 6 The βC1-WRKY20 interaction promotes plant resistance to aphid by activating SA signaling.
The βC1-WRKY20 interaction promotes plant resistance to aphid by activating SA signaling. (A) Number of progeny produced by each aphid 9 days after infestation of 6-week-old Arabidopsis plants. Bars represent means ± SD (n = 8). (B to E) Relative expression levels of SA-related genes, AtPAL1 (B), AtSID2 (C), AtPAD4 (D), AtEDS5 (E), or AtPR1 (F) in 6-week-old Arabidopsis plants. Bars represent means ± SD (n = 3). (G) Symptoms of cabbage leaf curl virus (CaLCuV)–infected Arabidopsis plants at 31 days post infection (dpi). Scale bar, 1 cm. (H) Disease index of CaLCuV-infected Arabidopsis plants. Disease indexes is an indicator of the average disease severity on the survey plant samples, which were observed by level of viral symptomatic onset such as obvious yellow and curly leaves in infected plants. (I) Relative CaLCuV virus titer in Arabidopsis plants after 31 dpi. Values are means ± SD (n = 3) (**P < 0.01, Student’s t test). (A to F) Means with different letters (a and b) are significantly different (P < 0.05, one-way ANOVA along with Duncan’s multiple range test). Photo credit: Pingzhi Zhao, Chinese Academy of Sciences. Pingzhi Zhao et al. Sci Adv 2019;5:eaav9801 Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
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