Regulation of Phenolic Compound Production by Light Varying in Spectral Quality and Total Irradiance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F22%3A00558870" target="_blank" >RIV/86652079:_____/22:00558870 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61988987:17310/22:A2302FYO RIV/61988987:17310/22:N2302FYO RIV/00216208:11310/22:10445330

Výsledek na webu

<a href="https://www.mdpi.com/1422-0067/23/12/6533" target="_blank" >https://www.mdpi.com/1422-0067/23/12/6533</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ijms23126533" target="_blank" >10.3390/ijms23126533</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Regulation of Phenolic Compound Production by Light Varying in Spectral Quality and Total Irradiance

Popis výsledku v původním jazyce

Photosynthetically active radiation (PAR) is an important environmental cue inducing the production of many secondary metabolites involved in plant oxidative stress avoidance and tolerance. To examine the complex role of PAR irradiance and specific spectral components on the accumulation of phenolic compounds (PheCs), we acclimated spring barley (Hordeum vulgare) to different spectral qualities (white, blue, green, red) at three irradiances (100, 200, 400 mu mol m(-2) s(-1)). We confirmed that blue light irradiance is essential for the accumulation of PheCs in secondary barley leaves (in UV-lacking conditions), which underpins the importance of photoreceptor signals (especially cryptochrome). Increasing blue light irradiance most effectively induced the accumulation of B-dihydroxylated flavonoids, probably due to the significantly enhanced expression of the F3 ' H gene. These changes in PheC metabolism led to a steeper increase in antioxidant activity than epidermal UV-A shielding in leaf extracts containing PheCs. In addition, we examined the possible role of miRNAs in the complex regulation of gene expression related to PheC biosynthesis.

Název v anglickém jazyce

Regulation of Phenolic Compound Production by Light Varying in Spectral Quality and Total Irradiance

Popis výsledku anglicky

Photosynthetically active radiation (PAR) is an important environmental cue inducing the production of many secondary metabolites involved in plant oxidative stress avoidance and tolerance. To examine the complex role of PAR irradiance and specific spectral components on the accumulation of phenolic compounds (PheCs), we acclimated spring barley (Hordeum vulgare) to different spectral qualities (white, blue, green, red) at three irradiances (100, 200, 400 mu mol m(-2) s(-1)). We confirmed that blue light irradiance is essential for the accumulation of PheCs in secondary barley leaves (in UV-lacking conditions), which underpins the importance of photoreceptor signals (especially cryptochrome). Increasing blue light irradiance most effectively induced the accumulation of B-dihydroxylated flavonoids, probably due to the significantly enhanced expression of the F3 ' H gene. These changes in PheC metabolism led to a steeper increase in antioxidant activity than epidermal UV-A shielding in leaf extracts containing PheCs. In addition, we examined the possible role of miRNAs in the complex regulation of gene expression related to PheC biosynthesis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10608 - Biochemistry and molecular biology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Molecular Sciences

ISSN

1422-0067

e-ISSN

1422-0067

Svazek periodika

23

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

30

Strana od-do

6533

Kód UT WoS článku

000815914400001

EID výsledku v databázi Scopus

2-s2.0-85131586192