Genome-wide identification of class III peroxidases in colored calla lily and enhanced resistance to soft rot bacteria

文献类型： 外文期刊

第一作者： Wang, Di

作者： Wang, Di;Wang, Yi;Gou, Rongxin;Jiang, Yin;Zeng, Zhen;Wei, Zunzheng;Wang, Di;Gou, Rongxin;Jiang, Yin;Zhang, Guojun;Yang, Tuo

作者机构：

关键词： Class III peroxidases; Soft rot; MeJA; BTH

期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.7； 五年影响因子：2.9 ）

ISSN： 0885-5765

年卷期： 2024 年 130 卷

页码：

收录情况： SCI

摘要： Soft rot disease is one of the primary issues in the production of colored calla lilies, significantly limiting largescale production. This research conducts an in-depth investigation of the class III peroxidase gene family in colored calla lily, identifying 80 ZePER genes, with their motifs and structural domains remaining conserved. Through phylogenetic tree analysis, these genes were classified into 9 distinct clades. Collinearity analysis and the distribution of ZePER genes suggest that the two main events of ZePER gene family evolution was wholegenome duplication (WGD) as well as tandem duplication. Cis-acting element analysis showed that the ZePER genes could be directly modulated by essential hormones like jasmonic acid (JA) and salicylic acid (SA), highlighting their role in biotic stress responses. Transcriptome profiling revealed tissue-specific gene expressions and their essential function in responding to soft rot bacteria. Upon inoculation with Pectobacterium carotovorum, the leaves manifested a significant upregulation of ZePER genes expression, and there was a concurrent surge in JA and SA content. Treatments with methyl jasmonate (MeJA) and benzothiadiazole (BTH) induced ZePER gene expression and augmented the plant's disease resistance. This indicates the crucial role of ZePER genes in regulating reactive oxygen species in leaves. In summary, these findings emphasize the importance of ZePER genes in the defense mechanisms of colored calla lily.

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