Regulatory role of microRNAs (miRNAs) in the recent development of abiotic stress tolerance of plants

Begum, Yasmin

doi:10.1016/j.gene.2022.146283

Cited by 37 publications

(21 citation statements)

References 287 publications

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“…The mature miRNAs can be loaded into an RNA-induced silencing complex (RISC), in which they bind to target mRNAs for the control of their transcription ( Martinez et al, 2002 ; Nakanishi, 2016 ; Michlewski and Cáceres, 2019 ). In plants, miRNAs have been demonstrated to regulate various processes, such as plant growth, disease resistance, stress adaptation, and cellular signal transduction ( Zhang et al, 2021 ; Begum, 2022 ). Plant-derived miRNAs also function as molecular linkers that mediate plant growth and auxin signaling pathways under adverse conditions ( Sunkar et al, 2007 ; Padmanabhan et al, 2009 ; Zhang, 2015 ; Begum, 2022 ).…”

Section: Regulation Of Plant Induce Systemic Resistance By Syntaxins ...mentioning

confidence: 99%

“…In plants, miRNAs have been demonstrated to regulate various processes, such as plant growth, disease resistance, stress adaptation, and cellular signal transduction ( Zhang et al, 2021 ; Begum, 2022 ). Plant-derived miRNAs also function as molecular linkers that mediate plant growth and auxin signaling pathways under adverse conditions ( Sunkar et al, 2007 ; Padmanabhan et al, 2009 ; Zhang, 2015 ; Begum, 2022 ).…”

Section: Regulation Of Plant Induce Systemic Resistance By Syntaxins ...mentioning

confidence: 99%

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Development of plant systemic resistance by beneficial rhizobacteria: Recognition, initiation, elicitation and regulation

2022

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A plant growing in nature is not an individual, but it holds an intricate community of plants and microbes with relatively stable partnerships. The microbial community has recently been demonstrated to be closely linked with plants since their earliest evolution, to help early land plants adapt to environmental threats. Mounting evidence has indicated that plants can release diverse kinds of signal molecules to attract beneficial bacteria for mediating the activities of their genetics and biochemistry. Several rhizobacterial strains can promote plant growth and enhance the ability of plants to withstand pathogenic attacks causing various diseases and loss in crop productivity. Beneficial rhizobacteria are generally called as plant growth-promoting rhizobacteria (PGPR) that induce systemic resistance (ISR) against pathogen infection. These ISR-eliciting microbes can mediate the morphological, physiological and molecular responses of plants. In the last decade, the mechanisms of microbial signals, plant receptors, and hormone signaling pathways involved in the process of PGPR-induced ISR in plants have been well investigated. In this review, plant recognition, microbial elicitors, and the related pathways during plant-microbe interactions are discussed, with highlights on the roles of root hair-specific syntaxins and small RNAs in the regulation of the PGPR-induced ISR in plants.

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Section: Regulation Of Plant Induce Systemic Resistance By Syntaxins ...mentioning

confidence: 99%

Section: Regulation Of Plant Induce Systemic Resistance By Syntaxins ...mentioning

confidence: 99%

Development of plant systemic resistance by beneficial rhizobacteria: Recognition, initiation, elicitation and regulation

2022

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“…In our study, accoring to the cis -elements, 731 TFs from 33 TF families may be associated with Nt CXE gene regulation. miRNAs regulate various biological functions by controlling the expression of target genes ( Begum, 2022 ; Guo et al., 2022 ). In our study, 138 miRNA members predicated may have regulatory relationships with NtCXE genes.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive analysis of the carboxylesterase gene reveals that NtCXE22 regulates axillary bud growth through strigolactone metabolism in tobacco

Wang

Xie²,

Xu³

et al. 2022

Front. Plant Sci.

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Carboxylesterases (CXE) are a class of hydrolytic enzymes with α/β-folding domains that play a vital role in plant growth, development, stress response, and activation of herbicide-active substances. In this study, 49 Nicotiana tabacum L. CXE genes (NtCXEs) were identified using a sequence homology search. The basic characteristics, phylogenetic evolution, gene structure, subcellular location, promoter cis-elements, and gene expression patterns of the CXE family were systematically analyzed. RNA-seq data and quantitative real-time PCR showed that the expression level of CXEs was associated with various stressors and hormones; gene expression levels were significantly different among the eight tissues examined and at different developmental periods. As a new class of hormones, strigolactones (SLs) are released from the roots of plants and can control the germination of axillary buds.NtCXE7, NtCXE9, NtCXE22, and NtCXE24 were homologous to Arabidopsis SLs hydrolase AtCXE15, and changes in their expression levels were induced by topping and by GR24 (a synthetic analogue of strigolactone). Further examination revealed that NtCXE22-mutant (ntcxe22) plants generated by CRISPR-Cas9 technology had shorter bud outgrowth with lower SLs content. Validation of NtCXE22 was also performed in NtCCD8-OE plants (with fewer axillary buds) and in ntccd8 mutant plants (with more axillary buds). The results suggest that NtCXE22 may act as an efficient SLs hydrolase and affects axillary bud development, thereby providing a feasible method for manipulating endogenous SLs in crops and ornamental plants.

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“…The demand for P fertilizers worldwide in 2022 was predicted as high as 49.1 million tons 8 ; however excessive application of P fertilizer also caused severe problems such as environmental pollution 7 . Therefore, the development of a new crop variety with efficient P use is required for agricultural production in P-deficit soils 9,10 .…”

Section: Overexpression Of Soybean Microrna156b Enhanced Tolerance To...mentioning

confidence: 99%

Overexpression of soybean microRNA156b enhanced tolerance to phosphorus deficiency and seed yield in Arabidopsis

Tian

Hao

et al. 2023

Sci Rep

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AbstractmicroRNAs (miRNAs) are endogenous small RNAs that are key regulatory factors participating in various biological activities such as the signaling of phosphorus deficiency in the plant. Previous studies have shown that miR156 expression was modulated by phosphorus starvation in Arabidopsis and soybean. However, it is not clear whether the over-expression of soybean miR156b (GmmiR156b) can improve a plant’s tolerance to phosphorus deficiency and affect yield component traits. In this study, we generated Arabidopsis transgenic lines overexpressing GmmiR156b and investigated the plant’s response to phosphorus deficiency. Compared with the wild type, the transgenic Arabidopsis seedlings had longer primary roots and higher phosphorus contents in roots under phosphorus-deficit conditions, but lower fresh weight root/shoot ratios under either phosphorus-deficient or sufficient conditions. Moreover, the GmmiR156b overexpression transgenic lines had higher phosphorus content in shoots of adult plants and grew better than the wide type under phosphorus-deficient conditions, and exhibited increased seed yields as well as strong pleiotropic developmental morphology such as dwarfness, prolonged growth period, bushy shoot/branching, and shorter silique length, suggesting that the transgenic lines were more tolerant to phosphorus deficiency. In addition, the expression level of four SQUAMOSA PROMOTER BINDING PROTEIN LIKE (SPL) genes (i.e., AtSPL4/5/6/15) were markedly suppressed in transgenic plants, indicating that they were the main targets negatively regulated by GmmiR156b (especially AtSPL15) and that the enhanced tolerance to phosphorus deficiency and seed yield is conferred mainly by the miR156-mediated downregulation of AtSPL15.

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Regulatory role of microRNAs (miRNAs) in the recent development of abiotic stress tolerance of plants

Cited by 37 publications

References 287 publications

Development of plant systemic resistance by beneficial rhizobacteria: Recognition, initiation, elicitation and regulation

Development of plant systemic resistance by beneficial rhizobacteria: Recognition, initiation, elicitation and regulation

Comprehensive analysis of the carboxylesterase gene reveals that NtCXE22 regulates axillary bud growth through strigolactone metabolism in tobacco

Overexpression of soybean microRNA156b enhanced tolerance to phosphorus deficiency and seed yield in Arabidopsis

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