Biological function research of Fusarium oxysporum f. sp. cubense inducible banana long noncoding RNA Malnc2310 in Arabidopsis
文献类型： 外文期刊
作者： Li, Wenbin 1 ; Zhao, Pingjuan 1 ; Sun, Jianbo 1 ; Yu, Xiaoling 1 ; Zou, Liangping 1 ; Li, Shuxia 1 ; Di, Rong 4 ; Ruan, Mengbin 1 ; Peng, Ming 1 ;
作者机构： 1.Minist Agr & Rural Affairs, Key Lab Biol & Genet Resources Trop Crops, Beijing, Peoples R China
2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Trop Microbe Resources, Haikou, Peoples R China
3.Hainan Inst Trop Agr Resources, Hainan Key Lab Conservat & Utilizat Trop Agr Biol, Haikou, Peoples R China
4.Rutgers State Univ, Dept Plant Biol, New Brunswick, NJ USA
5.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya, Peoples R China
关键词： Malnc2310; Binding protein; Transgenic Arabidopsis; Fusarium extract; Salinity; Cold
期刊名称：PLANT MOLECULAR BIOLOGY （ 影响因子：5.1； 五年影响因子：5.3 ）
ISSN： 0167-4412
年卷期： 2023 年 112 卷 6 期
页码：
收录情况： SCI
摘要： Key messageThe lncRNA Malnc2310 is induced in banana roots by Fusarium. The 35S::Malnc2310 transgenic Arabidopsis accumulate more anthocyanin under stress, verifying that Malnc2310 involved in flavonoid pathway through regulating PAL proteins. Long noncoding RNAs (lncRNAs) participate in plant biological processes under biotic and abiotic stresses. However, little is known about the function and regulation mechanism of lncRNAs related to the pathogen at a molecular level. A banana lncRNA, Malnc2310, is a Fusarium oxysporum f. sp. cubense inducible lncRNA in roots. In this study, we demonstrate the nuclear localization of Malnc2310 by fluorescence in situ hybridization and it can bind to several proteins that are related to flavonoid pathway, pathogen response and programmed cell death. Overexpression of Malnc2310 increases susceptibility to Fusarium crude extract (Fu), salinity, and cold in transgenic Arabidopsis. In addition, Malnc2310 transgenic Arabidopsis accumulated more anthocyanins under Fusarium crude extract and cold treatments that are related to upregulation of these genes involved in anthocyanin biosynthesis. Based on our findings, we propose that Malnc2310 may participate in flavonoid metabolism in plants under stress. Furthermore, phenylalanine ammonia lyase (PAL) protein expression was enhanced in Malnc2310 overexpressed transgenic Arabidopsis, and Malnc2310 may participate in PAL regulation by binding to it. This study provides new insights into the role of Malnc2310 in mediating plant stress adaptation.
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