Penicillium chrysogenum polypeptide extract protects tobacco plants from tobacco mosaic virus infection through modulation of ABA biosynthesis and callose priming

Yu Li; Mengting Jiao; Yingjuan Li; Yu Zhong; Xiaoqin Li; Zhuangzhuang Chen; Suiyun Chen; Jianguang Wang

doi:10.1093/jxb/erab102

Fig. 6.

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Plasmodesmata structural parameters. (A) Plasmodesmata ultrastructure was observed via transmission electron microscopy. (B) Plasmodesmata diameters (8–10 plasmodesma were analysed per sample) were measured at the neck region via the TEM Imaging & Analysis software. Scale bar =200 nm. Values are means ±SD (n=27). *: P<0.05 and ***: P<0.001 versus TMV treatment; ^##: P<0.01, as determined by one-way ANOVA. The red arrows show the neck of plasmodesmata. The letter ‘m’ indicates ABA biosynthesis mutant.