A lncRNA fine-tunes salicylic acid biosynthesis to balance plant immunity and growth

Identification of long non-coding RNAs involved in floral scent of Rosa hybrida

“…Although many lncRNAs have been identified from numerous model plants, such as Arabidopsis , there are limited studies on lncRNAs in rose and further research is required in this area ( Liu et al., 2022 ). In the present study, with the strand-specific RNA-Seq and a strict criteria pipeline widely used in previous studies in plants ( Zhu et al., 2015 ; Zhang et al., 2016 ; Wang et al., 2017 ), a total of 13,957 lncRNAs were identified and classified in rose, a model plant for the study of floral scent ( Figure 3 ).…”

“…LncRNAs might be a general component of plant immune responses, for numerous differentially expressed lncRNAs were identified from the pathogen-infected plants including tomato, cotton, arabidopsis, rice, and mutants of some of them were shown to alter plant resistance to pathogens ( Liu et al., 2022 ). For example, accumulation of a pathogen-responsive lncRNA ALEX1 could activate the (jasmonic acid) JA pathway in rice and enhance its resistance to bacterial blight ( Yu et al., 2020 ), LincRNA CRIR1 regulated cold stress response of the cassava by modulating the expression of stress-responsive genes and increasing the translational yield ( Li et al., 2022 ).…”

“…In Arabidopsis thaliana , lcRNA SABC1 could repress plant immunity via decreasing transcription factor gene NAC3 and isochorismate synthase 1 ( ICS1 ) transcriptions. However, upon pathogen infection, SABC1 was downregulated to depress plant resistance to bacteria and viruses ( Liu et al., 2022 ). Due to the dual role in plant pollination and defense of floral scent, whether lncRNAs involved in its production functioned similarly was worth anticipating.…”

“…In the past decade, thousands of lncRNAs have been identified in plants, including Arabidopsis thaliana ( Di et al., 2014 ; Wang et al., 2014 ; Zhu et al., 2014 ; Moison et al., 2021 ; Liu et al., 2022 ), Medicago truncatula ( Wen et al., 2007 ), Triticum aestivum ( Xin et al., 2011 ; Zhang et al., 2016 ; Lu et al., 2020 ), Oryza sativa ( Shin et al., 2018 ; Yu et al., 2020 ; Zhang et al., 2020 ; Chen et al., 2021 ), Zea mays ( Boerner and McGinnis, 2012 ; Li et al., 2014 ), Manihot esculenta Crantz ( Li et al., 2022 ), Solanum lycopersicum ( Zhu et al., 2015 ; Jiang et al., 2019 ), Cuscuta spp. ( Wu et al., 2022 ), Populus trichocarpa ( Shuai et al., 2014 ), P. tomentosa ( Chen et al., 2015 ; Chen et al., 2022 ), and P.×euramericana ( Wang et al., 2017 ).…”

“…Some lncRNAs were found to be endogenous target mimics (eTMs) of miRNAs, indicating a new mechanism for regulating miRNA activity ( Wu et al., 2013 ; Jiang et al., 2019 ). In Arabidopsis thaliana , lncRNA SABC1 recruited the polycomb repressive complex 2 to its neighboring gene NAC3 to decrease its transcription via H3K27me3 ( Liu et al., 2022 ). This evidence, highlighting the essential and varied functions of lncRNAs, demonstrates the importance of discovering and identifying lncRNAs in different biological processes and the need to elucidate their functional mechanisms.…”