The plant genome. 2024 Dec;17(4):e20521. doi: 10.1002/tpg2.20521 Q13.82025
Functional analysis of PagERF021 gene in salt stress tolerance in Populus alba × P. glandulosa
杨树PagERF021基因在盐胁迫中的功能分析 翻译改进
Gaofeng Fan 1, Yuan Gao 1, Xinyue Wu 1, Yingying Yu 1, Wenjing Yao 1 2, Jiahui Jiang 1, Huanzhen Liu 1, Tingbo Jiang 1
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DOI: 10.1002/tpg2.20521 PMID: 39414577
摘要 中英对照阅读
白杨和腺泡杨的杂交树种中的PagERF021基因在盐胁迫下各组织中显著上调。乙烯响应因子（Ethylene response factor，简称ERF）转录因子在真核生物的生长、发育及应激反应中扮演着重要角色。我们的研究重点在于Populus alba × P. glandulosa中的PagERF021基因，在盐胁迫条件下该基因在多种组织中的表达量显著增加。组织特异性表达模式和β-葡萄糖苷酶（GUS）染色结果显示，该基因主要在根部和茎部表达。亚细胞定位表明，这种蛋白质仅定位于细胞核内。酵母试验表明，此蛋白在其C端具有转录激活活性，并能与MYB-core顺式作用元件特异性结合。PagERF021基因的过表达可以清除活性氧物质的积累并减少细胞膜损伤的程度，这表明该基因能够增强杨树对盐胁迫的耐受性。这一发现为未来研究ERF基因在非生物胁迫抵抗中的调控机制以及培育新的抗逆植物品种提供了可行的思路。
© 2024 The Author(s). The Plant Genome published by Wiley Periodicals LLC on behalf of Crop Science Society of America.
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