| 论文题目: | Overexpression of GhPFN2 enhances protection against Verticillium dahliae invasion in cotton |
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| 作者: | Wang Wenyan, Sun Yongduo, Han Libo, Su Lei, Xia Guixian*, and Wang Haiyun*. |
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| 刊物名称: | Sci China Life Sci |
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| 年份: | 2017 |
| 影响因子: | 2.014 |
| 论文下载: | 下载地址 |
| 摘要: | Growing evidence indicates that actin cytoskeleton is involved in plant innate immune responses, but the functional mechanism remains largely unknown. Here, we investigated the behavior of a cotton profilin gene (GhPFN2) in response to Verticillium dahliae invasion, and evaluated its contribution to plant defense against this soil-borne fungal pathogen. GhPFN2 expression was up-regulated when cotton root was inoculated with V. dahliae, and the actin architecture was reorganized in the infected root cells, with a clear increase in the density of filamentous actin and the extent of actin bundling. Compared to the wild type, GhPFN2-overexpressing cotton plants showed enhanced protection against V. dahliae infection and the actin cytoskeleton organization in root epidermal cells was clearly altered, which phenocopied that of the wild-type (WT) root cells challenged with V. dahliae. These results provide a solid line of evidence showing that actin cytoskeleton reorganization involving GhPFN2 is important for defense against V. dahliae infection. |
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