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. 2020 Jun 28;71(18):5656–5668. doi: 10.1093/jxb/eraa304

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© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 7. — Pre-treatment with H₂O₂ increased susceptibility of plants to ChiVMV infection. (A) Symptoms of the ChiVMV-infected WT, HCPro-OX, and CAT1-OX plants with H₂O₂ or H₂O pre-treatment at 9 dpi. Scale bars=2 cm. (B) Detection of virus accumulation in ChiVMV-infected WT, HCPro-OX, and CAT1- OX plants with H₂O₂ or H₂O pre-treatment at 9 dpi by qPCR analysis. (C) Images of the maximum PSII quantum yield (F_v/F_m) in WT, HCPro-OX, and CAT1-OX plants with H₂O₂ or H₂O pre-treatment at 9 dpi. (D) Average values of F_v/F_m for the respective chlorophyll fluorescence images. Ten plants were used for each treatment, and a picture of one representative leaf is shown. Systemically infected leaves were collected for detection. Bars represent the mean and SD of values obtained from six independent plants. Significant differences (P<0.05) are denoted by different lower case letters.