Overexpression of sly-miR398b increased salt sensitivity likely via regulating antioxidant system and photosynthesis in tomato

High-Throughput Sequencing Reveals the Regulatory Networks of Transcriptome and Small RNAs During the Defense Against Marssonina brunnea in Poplar

“…MIR398 serves to store via inhibiting antioxidant enzymes activity in plants under stress (He et al, 2021 ). The production of target gene Tudor/PWWP/MBT domain-containing protein (Podel.05G102600) can interact with histidine-rich calcium-binding protein (Yang et al, 2020 ).…”

Tomato salt tolerance mechanisms and their potential applications for fighting salinity: A review

“…•− . Meanwhile, miR398b also decreases the activity of APX and CAT, and the contents of GSH as well, leading to H 2 O 2 accumulation (He et al, 2021).…”

“…RING finger E3 ligase Ring functions as a positive regulator of salt stress signaling through regulating the ion homeostasis of Na + and K + , levels of H 2 O 2 and lipid peroxidation, and expression of stress-related genes (Qi et al, 2016). Overexpression of the melatonin synthesisrelated gene Caffeic Acid O-Methyltransferase 1 (COMT1) increases salt tolerance via maintaining the balance of Na + /K + , decreasing ion damage by activating SOS pathway, enhancing the antioxidant capability, and upregulating stress-related genes 10.3389/fpls.2022.949541 Overexpression of miR398b increased the sensitivity to salinity, enhanced the oxidative stress via the accumulation of O 2 •− , induced photoinhibition and inhibited the photosynthesis under salinity; miR398b regulated the expressions of antioxidant genes, activity of antioxidant enzymes and contents of antioxidants He et al, 2021 High-affinity K + 20 (HAK20)…”

Integrated Full-Length Transcriptome and MicroRNA Sequencing Approaches Provide Insights Into Salt Tolerance in Mangrove (Sonneratia apetala Buch.-Ham.)

“…Additionally, we noted that some stress-regulated miRNAs, identified in this study, might be fine-tuned across adaptive responses to various stresses. For example, miR169 and miR319 were considered as a bridge, linking plant responses to ABA, drought and salt stress ( De la Rosa et al, 2019 ; Salgado et al, 2021 ); miR398 was reported to play vital roles in various stresses such as water deficit ( Yang et al, 2020 ), oxidative stress ( Li et al, 2020 ), nutrient deficiency ( Islam et al, 2022 ), salt stress ( He et al, 2021 ), and bacterial infection ( Salamon et al, 2021 ). This was probably due to the shared regulatory genes that are modulated by these miRNAs across distinct stress responses, attempting to reveal complex miRNA-mediated gene regulation was involved in the cross-response to abiotic and biotic stresses.…”

“…MicroRNAs (miRNAs) comprise a class of endogenous small non-coding RNA molecules that are approximately 21 nt in length, and are recognized as important regulators of the transcriptional and post-transcriptional expression of genes, mediated via mRNA degradation, transcription inhibition or the repression of mRNA translation ( Tyagi et al, 2019 ). Besides their roles in modulating diverse essential physiological, biochemical and molecular processes, many miRNAs were discovered to respond to various abiotic stimuli in plants, including drought ( Li et al, 2021 ), salinity ( Hu et al, 2018 ; He et al, 2021 ; Salgado et al, 2021 ), cold ( Hu et al, 2018 ) and oxidative stress ( Li et al, 2020 ), as well biotic stresses ( Salamon et al, 2021 ). To address salinity-induced stress, multiple gene expression mechanisms have evolved in plants, which relate to a wide range of biological processes, including transcription, signal transduction, energy metabolism, membrane trafficking, protein biosynthesis, and photosynthesis ( Pan et al, 2018 ).…”