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MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis

ABSTRACT: MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis

PROVIDER: PRJNA893215 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22013600_1.fastq.gz	Fastqsanger.gz
	SRR22013600_2.fastq.gz	Fastqsanger.gz
	SRR22013601.fastq.gz	Fastqsanger.gz
	SRR22013602.fastq.gz	Fastqsanger.gz
	SRR22013603.fastq.gz	Fastqsanger.gz

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MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis (miRNA-Seq)

Project description:MicroRNAs (miRNAs) play diverse roles in plant development, but whether and how miRNAs participate in thermomorphogenesis remains ambiguous. Here we show that HYPONASTIC LEAVES1 (HYL1) – a key component of microRNA biogenesis – acts downstream of the thermal regulator PHYTOCHROME INTERACTING FACTOR 4 in temperature-dependent plasticity of hypocotyl growth in Arabidopsis. A hyl1-2 suppressor screen identified a dominant dicer-like1 (dcl1) allele, dcl1-24, which rescues hyl1-2’s defects in miRNA biosynthesis and warm temperature-induced hypocotyl elongation. Genome-wide miRNA and transcriptome analysis reveal microRNA156 (miR156) and its target SQUAMOSA PROMOTER-BINDING-LIKE 9 (SPL9) as critical regulators of thermomorphogenesis. Surprisingly, perturbation of the miR156/SPL9 module disengages seedling responsiveness to warm temperatures by impeding auxin sensitivity. Moreover, the miR156-dependent auxin sensitivity also operates in the shade avoidance response at lower temperatures. Thus, these results unveil the miRNA156/SPL9 module as a previously-uncharacterized genetic circuitry that enables plant growth plasticity in response to environmental temperature and light changes.

2023-02-11 | GSE216361 | GEO

MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis (RNA-Seq)

Project description:MicroRNAs (miRNAs) play diverse roles in plant development, but whether and how miRNAs participate in thermomorphogenesis remains ambiguous. Here we show that HYPONASTIC LEAVES1 (HYL1) – a key component of microRNA biogenesis – acts downstream of the thermal regulator PHYTOCHROME INTERACTING FACTOR 4 in temperature-dependent plasticity of hypocotyl growth in Arabidopsis. A hyl1-2 suppressor screen identified a dominant dicer-like1 (dcl1) allele, dcl1-24, that rescues hyl1-2’s defects in miRNA biosynthesis and warm temperature-induced hypocotyl elongation. Genome-wide miRNA and transcriptome analysis reveal microRNA156 (miR156) and its target SQUAMOSA PROMOTER-BINDING-LIKE 9 (SPL9) as critical regulators of thermomorphogenesis. Surprisingly, perturbation of the miR156/SPL9 module disengages seedling responsiveness to warm temperatures by impeding auxin sensitivity. Moreover, the miR156-dependent auxin sensitivity also operates in the shade avoidance response at lower temperatures. Thus, these results unveil the miRNA156/SPL9 module as a previously-uncharacterized genetic circuitry that enables plant growth plasticity in response to environmental temperature and light changes.

2023-02-11 | GSE216360 | GEO

MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis (RNA-Seq)

Project description:MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis (RNA-Seq)

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MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis (miRNA-Seq)

Project description:MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis (miRNA-Seq)

| PRJNA893218 | ENA

MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis.

Project description:MicroRNAs (miRNAs) play diverse roles in plant development, but whether and how miRNAs participate in thermomorphogenesis remain ambiguous. Here we show that HYPONASTIC LEAVES 1 (HYL1)-a key component of miRNA biogenesis-acts downstream of the thermal regulator PHYTOCHROME INTERACTING FACTOR 4 in the temperature-dependent plasticity of hypocotyl growth in Arabidopsis. A hyl1-2 suppressor screen identified a dominant dicer-like1 allele that rescues hyl1-2's defects in miRNA biogenesis and thermoresponsive hypocotyl elongation. Genome-wide miRNA and transcriptome analysis revealed microRNA156 (miR156) and its target SQUAMOSA PROMOTER-BINDING-PROTEIN-LIKE 9 (SPL9) to be critical regulators of thermomorphogenesis. Surprisingly, perturbation of the miR156/SPL9 module disengages seedling responsiveness to warm temperatures by impeding auxin sensitivity. Moreover, miR156-dependent auxin sensitivity also operates in the shade avoidance response at lower temperatures. Thus, these results unveil the miR156/SPL9 module as a previously uncharacterized genetic circuit that enables plant growth plasticity in response to environmental temperature and light changes.

| S-EPMC10033679 | biostudies-literature

MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-02-11 | GSE216362 | GEO

The primitive endoderm supports lineage plasticity to enable regulative development

Project description:The primitive endoderm supports lineage plasticity to enable regulative development

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RNA features governing zinc finger antiviral protein sensitivity enable attenuated virus design

Project description:Synonymous recoding of viral genome can attenuate their replication, but can have pleiotropic effects, with multiple mechanisms contributing to attenuation. We set out to design recoded viral genomes whose attenuation was specific and conditional. The zinc finger antiviral protein (ZAP) recognizes CpG dinucleotides and targets CpG-rich RNAs for depletion, but RNA features such as CpG numbers, spacing and surrounding nucleotide composition that enable specific modulation by ZAP are undescribed. Using synonymously mutated HIV-1 genomes, we define several sequence features that govern ZAP sensitivity and stable attenuation. Using features defined using HIV-1, we then designed a mutant enterovirus A71 genome whose attenuation was also stable and strictly ZAP-dependent, both in cell culture and in mice. This conditionally attenuated enterovirus A71 elicited neutralizing antibodies that were protective against wild-type enterovirus 71 infection and disease. Elucidation of the determinants of ZAP sensitivity can thus enable the rational design of conditionally attenuated viral vaccines.

2022-07-26 | GSE208611 | GEO

RNA features governing zinc finger antiviral protein sensitivity enable attenuated virus design

Project description:RNA features governing zinc finger antiviral protein sensitivity enable attenuated virus design

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Interactions of ARF6 with PIF4, BZR1, and RGA integrate auxin signaling with environmental and other hormonal signals in Arabidopsis [ChIP-Seq]

Project description:Auxin is a major plant hormone for both development and environmental adaptation. Auxin responses are context dependent and highly modulated by light, temperature, the circadian clock, brassinosteroid, and gibberellin, but the underlying mechanisms remain unclear. Here, we show that auxin signaling integrates with other signals through direct interactions of AUXIN RESPONSE FACTOR6 (ARF6) with PHYTOCHROME INTERACTING FACTOR4 (PIF4), the brassinosteroid-signaling transcription factor BZR1, and the gibberellin-signaling repressor RGA. ChIP-Seq and RNA-Seq experiments show that ARF6, PIF4, and BZR1 bind to largely overlapping targets in the genome and synergistically activate gene expression. In vitro and in vivo assays show that ARF6-promoter binding is enhanced by PIF4 and BZR1 but blocked by RGA. Furthermore, a tripartite HLH/bHLH module feedback regulates PIF activity and thus modulates auxin sensitivity according to additional developmental and environmental cues. Our results demonstrate a central growth-regulation transcriptional network that coordinates hormonal, environmental, and developmental control of cell elongation and plant growth. Genome-wide identification of ARF6 DNA-binding sites in etiolated Arabidopsis seedlings.

2014-06-03 | E-GEOD-51770 | biostudies-arrayexpress

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