MicroRNA398: A Master Regulator of Plant Development and Stress Responses

Li, Jing; Song, Qingxu; Zuo, Zhi-Fang; Liu, Lin

doi:10.3390/ijms231810803

Cited by 23 publications

(16 citation statements)

References 91 publications

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“…MiR398 is extremely ancient and is found in both gymnosperms and angiosperms. This miRNA has been shown to be involved in growth and development processes in a number of plant species, as well as regulating abiotic and biotic stress responses [ 36 ]. Other ancient and highly conserved microRNAs include miR165/miR166, which regulate HD-ZIP III (homeodomain-leucine zipper) transcriptional factors and are involved in a range of plant development processes [ 37 , 38 ].…”

Section: Discussionmentioning

confidence: 99%

Differentially Expressed Conserved Plant Vegetative Phase-Change-Related microRNAs in Mature and Rejuvenated Silver Birch In Vitro Propagated Tissues

Krivmane,

Ruņģe,

Samsone

et al. 2023

Plants

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In plants, phase change from the juvenile stage to maturity involves physiological and anatomical changes, which are initiated and controlled by evolutionary highly conserved microRNAs. This process is of particular significance for the in vitro propagation of woody plant species, as individuals or tissues that have undergone the transition to vegetative maturity are recalcitrant to propagation. Conserved miRNAs differentially expressed between juvenile (including rejuvenated) and mature silver birch tissues were identified using high-throughput sequencing of small RNA libraries. Expression of some miR156 isoforms was high in juvenile tissues and has been previously reported to regulate phase transitions in a range of species. Additional miRNAs, such as miR394 and miR396, that were previously reported to be highly expressed in juvenile woody plant tissues were also differentially expressed in this study. However, expression of miR172, previously reported to be highly expressed in mature tissues, was low in all sample types in this study. The obtained results will provide insight for further investigation of the molecular mechanisms regulating vegetative phase change in silver birch and other perennial woody plant species, by analysing a wider range of genotypes, tissue types and maturation stages. This knowledge can potentially assist in identification of rejuvenated material at an earlier stage than currently possible, increasing the efficiency of silver birch in vitro propagation.

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Section: Discussionmentioning

confidence: 99%

Differentially Expressed Conserved Plant Vegetative Phase-Change-Related microRNAs in Mature and Rejuvenated Silver Birch In Vitro Propagated Tissues

Krivmane,

Ruņģe,

Samsone

et al. 2023

Plants

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“…However, HD-ZIP III transcription factors are not only involved in defense but also in plant growth by regulating the transport and flow of auxins that condition developmental responses [64]. miR398 is a highly conserved miRNA that is widespread in angiosperms [29] and is considered a master regulator of developmental and environmental stress responses [53,65]. Although miR398 has been described as induced by P. infestans inoculation in the tomato [66], we have seen that it is downregulated in T11-treated plants, as occurred in the typical responses of tomato plants tolerant to abiotic stresses [45,67].…”

Section: Discussionmentioning

confidence: 99%

Identification of Tomato microRNAs in Late Response to Trichoderma atroviride

Olmo,

Quijada,

Morán-Diez

et al. 2024

IJMS

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The tomato (Solanum lycopersicum) is an important crop worldwide and is considered a model plant to study stress responses. Small RNAs (sRNAs), 21–24 nucleotides in length, are recognized as a conserved mechanism for regulating gene expression in eukaryotes. Plant endogenous sRNAs, such as microRNA (miRNA), have been involved in disease resistance. High-throughput RNA sequencing was used to analyze the miRNA profile of the aerial part of 30-day-old tomato plants after the application of the fungus Trichoderma atroviride to the seeds at the transcriptional memory state. Compared to control plants, ten differentially expressed (DE) miRNAs were identified in those inoculated with Trichoderma, five upregulated and five downregulated, of which seven were known (miR166a, miR398-3p, miR408, miR5300, miR6024, miR6027-5p, and miR9471b-3p), and three were putatively novel (novel miR257, novel miR275, and novel miR1767). miRNA expression levels were assessed using real-time quantitative PCR analysis. A plant sRNA target analysis of the DE miRNAs predicted 945 potential target genes, most of them being downregulated (84%). The analysis of KEGG metabolic pathways showed that most of the targets harbored functions associated with plant–pathogen interaction, membrane trafficking, and protein kinases. Expression changes of tomato miRNAs caused by Trichoderma are linked to plant defense responses and appear to have long-lasting effects.

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“…MiR398 is extremely ancient, and is found in both gymnosperms and angiosperms. This miRNA has been shown to be involved in growth and development processes in a number of plant species, as well as regulating abiotic and biotic stress responses [30]. Other ancient and highly conserved microRNAs include miR165/miR166, which regulate HD-ZIP III (homeodomain-leucine zipper) transcriptional factors and are involved in a range of plant development processes [31,32].…”

Section: Discussionmentioning

confidence: 99%

Differentially Expressed Conserved Plant Vegetative Phase-change Related Micro RNAs as Markers of Juvenility for Silver Birch In Vitro Propagation

Krivmane¹,

Samsone²,

Ruņģis³

2022

Preprint

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In plants, phase change from the juvenile stage to maturity is a tightly controlled process at the physiological and genetic level, which is controlled by evolutionary highly conserved microRNAs. These phase changes are more pronounced in woody plant species, but the majority of molecular genetic studies on the regulation of this transition has been done in annual model or crop species. This process is of particular significance for the in vitro propagation of woody plant species, as individuals or tissues that have undergone the transition to vegetative maturity are recalcitrant to propagation. Development of effective methodologies for silver birch vegetative propagation are required to increase the efficiency of breeding programs. Conserved miRNAs that were differentially expressed between juvenile and mature silver birch tissues were identified using high-throughput sequencing of small RNA libraries. These differentially expressed miRNAs could potentially be utilized to develop markers indicating the juvenility or maturity of silver birch explants and in vitro cultures. In addition, the obtained results will provide an insight into the molecular mechanisms regulating vegetative phase change in silver birch and other perennial woody plant species.

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MicroRNA398: A Master Regulator of Plant Development and Stress Responses

Cited by 23 publications

References 91 publications

Differentially Expressed Conserved Plant Vegetative Phase-Change-Related microRNAs in Mature and Rejuvenated Silver Birch In Vitro Propagated Tissues

Differentially Expressed Conserved Plant Vegetative Phase-Change-Related microRNAs in Mature and Rejuvenated Silver Birch In Vitro Propagated Tissues

Identification of Tomato microRNAs in Late Response to Trichoderma atroviride

Differentially Expressed Conserved Plant Vegetative Phase-change Related Micro RNAs as Markers of Juvenility for Silver Birch In Vitro Propagation

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