Abstract
Abstract Long non-coding RNAs (lncRNAs) participate in the biological processes of plants under biotic and abiotic stresses. However, little is known about the function and regulation mechanism of the pathogen-related lncRNAs at a molecular level. A banana lncRNA, namely Malnc2310, is greatly induced by Fusarium oxysporum f. sp. cubense TR4 strain (VCG01213/16) in roots. In this study, we indicate the nuclear localization of Malnc2310 by fluorescence in situ hybridization (FISH). We illustrate that Malnc2310 interacts with several proteins that are related to phenylpropanoid pathway, pathogen response and programmed cell death. Overexpression of Malnc2310 confers higher susceptibility to stresses, such as Fusarium crude extracts, salinity and cold in transgenic Arabidopsis. Furthermore, the Malnc2310 transgenic Arabidopsis accumulated more anthocyanin under Fusarium crude extracts and cold treatments. The Malnc2310 overexpression up-regulated the expression of several key genes that are related to the development of lateral roots and those involved in the anthocyanin biosynthesis pathway. Malnc2310 also enhanced the activity of phenylalanine ammonia lyase (PAL) in transgenic Arabidopsis. Based on our findings, we propose that Malnc2310 binds to PAL to participate in the flavonoid metabolism under stresses. This study provides new insights into the role of Malnc2310 in mediating plants to stress adaptation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
