Xiang Ying, Zhao Yu-Wen, Wu Jing-Jing, Bai Xue, Wang Chu-Kun, Ma Chang-Ning, Sun Quan, Hu Da-Gang
National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018 Shandong China.
The Affiliated Taian City Central Hospital of Qingdao University, Taian, Shandong 271000 P.R. China.
Mol Breed. 2024 Sep 11;44(9):61. doi: 10.1007/s11032-024-01501-9. eCollection 2024 Sep.
The ATP-binding cassette (ABC) superfamily is involved in numerous complex biological processes. However, the understanding of ABCs in plant pathogen defense, particularly against , remains limited. In this study, we identified that plays a positive role in apple resistance to . Overexpression of significantly enhanced the resistance of apple calli and fruits to . Our findings revealed that the jasmonic acid (JA) content and the expression of genes associated with JA biosynthesis and signal transduction were higher in stable overexpressing apple calli than that of wild-type after inoculation with . Similar results were obtained for apple fruits with transient overexpression of . Our research indicates that enhances apple resistance to through the JA signaling pathway. We further determined that plays a crucial role in the apple's response to JA signaling. Moreover, exogenous methyl jasmonate (MeJA) treatment significantly enhanced the effectiveness of in boosting apple resistance to . We proposed a positive feedback regulatory loop between -mediated apple resistance to and JA signal. In summary, our study offers new insights into the role of ABC superfamily members in the control of plant disease resistance.
The online version contains supplementary material available at 10.1007/s11032-024-01501-9.
ATP结合盒(ABC)超家族参与众多复杂的生物过程。然而,对植物病原体防御中ABC的理解,尤其是对……的理解,仍然有限。在本研究中,我们鉴定出……在苹果对……的抗性中起积极作用。……的过表达显著增强了苹果愈伤组织和果实对……的抗性。我们的研究结果表明,在接种……后,稳定过表达的苹果愈伤组织中茉莉酸(JA)含量以及与JA生物合成和信号转导相关的基因表达高于野生型。对瞬时过表达……的苹果果实也获得了类似结果。我们的研究表明,……通过JA信号通路增强苹果对……的抗性。我们进一步确定……在苹果对JA信号的响应中起关键作用。此外,外源茉莉酸甲酯(MeJA)处理显著增强了……在提高苹果对……抗性方面的效果。我们提出了一个由……介导的苹果对……的抗性与JA信号之间的正反馈调节环。总之,我们的研究为ABC超家族成员在植物抗病性控制中的作用提供了新的见解。
在线版本包含可在10.1007/s11032-024-01501-9获取的补充材料。