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root-covered system

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Aliases

RCS

Evidence Snippets

we developed a root-covered system (RCS) in which the shoots were illuminated and the plant roots could be either exposed to light or cultivated in darkness
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1experimental system developmentsupports2019Source 1DOIPubMed

The authors developed a root-covered system (RCS) to mimic natural root growth conditions while allowing shoots to be illuminated and roots to be either light-exposed or kept in darkness.

Quoted textsource-backed
To mimic natural root growth conditions, we developed a root-covered system (RCS) in which the shoots were illuminated and the plant roots could be either exposed to light or cultivated in darkness.
Claim 2gene expression regulationsupports2019Source 1DOIPubMed

Direct light exposure induces HY5 expression in roots and HY5 expression may be regulated by COP1-mediated proteasome degradation.

Quoted textsource-backed
suggesting that HY5 expression is induced by direct light exposure and inhibits root growth. However, no differences in HY5 expression were observed between illuminated and dark-grown cop1 roots, indicating that HY5 may be regulated by COP1-mediated proteasome degradation.
Claim 3gene regulatory rolesupports2019Source 1DOIPubMed

HY5 contributes to light-regulated inhibition of root growth, and HY5 deficiency partially abolishes the inhibition caused by direct root light exposure.

Quoted textsource-backed
This growth change seems to be regulated by ELONGATED HYPOCOTYL 5 (HY5), a master regulator of photomorphogenesis. Light was found to regulate HY5 expression in the roots, while a HY5 deficiency partially abolished the inhibition of growth in roots directly exposed to light
Claim 4in vivo relevancesupports2019Source 1DOIPubMed

HY5 has a crucial role in regulating root development in response to light under soil-grown conditions.

Quoted textsource-backed
We confirmed the crucial role of HY5 in regulating root development in response to light under soil-grown conditions.
Claim 5mechanistic modelsupports2019Source 1DOIPubMed

HY5 regulates the root response to light through a network integrating flavonol biosynthesis and reactive oxygen species signaling.

Quoted textsource-backed
these findings suggested that HY5 regulates the root response to light through a complex network that integrates flavonol biosynthesis and reactive oxygen species signaling.
Claim 6overall conclusionsupports2019Source 1DOIPubMed

HY5 is a master regulator of root photomorphogenesis.

Quoted textsource-backed
Collectively, our results indicate that HY5 is a master regulator of root photomorphogenesis.
Claim 7phenotypic effectsupports2019Source 1DOIPubMed

In the root-covered system, wild-type root growth was promoted when roots were kept in darkness and inhibited by direct light exposure.

Quoted textsource-backed
Using the RCS, we observed that root growth of wild-type plants was significantly promoted when the roots were in darkness, whereas it was inhibited by direct light exposure.
Claim 8transcriptomic effectsupports2019Source 1DOIPubMed

Light controls expression of numerous genes involved in phytohormone signaling, stress adaptation, and metabolic processes in a HY5-dependent manner.

Quoted textsource-backed
A transcriptomic analysis revealed that light controls the expression of numerous genes involved in phytohormone signaling, stress adaptation, and metabolic processes in a HY5-dependent manner.