Induction of phenolic compounds by UV and PAR is modulated by leaf ontogeny and barley genotype

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F19%3AA2001V5Q" target="_blank" >RIV/61988987:17310/19:A2001V5Q - isvavai.cz</a>

Alternative codes found

RIV/86652079:_____/19:00492779

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0981942818303504" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0981942818303504</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.plaphy.2018.08.012" target="_blank" >10.1016/j.plaphy.2018.08.012</a>

Result language

angličtina

Original language name

Induction of phenolic compounds by UV and PAR is modulated by leaf ontogeny and barley genotype

Original language description

We investigated the effect of leaf ontogeny and barley genotype on the accumulation of phenolic compounds (PhCs) induced by ultraviolet (UV) and photosynthetically active radiation (PAR). We hypothesized that different groups of PhCs are induced in leaves differing in ontogeny, and that this has consequences for protective functions and the need for other protection mechanisms. Generally, lower constitutive contents of PhCs (under conditions of UV exclusion and reduced PAR) were found in a UV-sensitive genotype (Barke) compared to a tolerant genotype (Bonus). However, UV and PAR induced accumulation of PhCs exceeded the constitutive amounts several fold. Specifically, lutonarin, 3-feruloylquinic acid, unidentified hydroxycinnamic acid and luteolin derivatives were markedly enhanced by high PAR and UV irradiances. Leaves developed during UV and PAR treatments had higher PhCs contents than mature leaves already fully developed at the onset of the UV and PAR treatment. UV and PAR treatments had, however, a minor effect on saponarin and unidentified apigenin derivatives which occur particularly in mature leaves of the tolerant genotype Bonus. In addition, high UV and PAR intensities increased the total content of xanthophylls (VAZ), while chlorophyll content was reduced, particularly in developing leaves. A redundancy analysis revealed positive associations between most of PhCs and VAZ and a negative association between total chlorophylls and carotenoids. Non-linear relationships between VAZ and lutonarin and other PhCs indicate that VAZ accumulation can compensate for the insufficient efficiency of anti-oxidative protection mediated by PhCs. Accordingly, we conclude that UV and PAR-induced accumulation of PhCs is affected by leaf ontogeny, however, this effect is compound-specific.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GA18-23702S" target="_blank" >GA18-23702S: Dynamic changes in plant photoprotective mechanisms under elevated CO2 concentration and higher temperature</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

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

Name of the periodical

PLANT PHYSIOL BIOCH

ISSN

0981-9428

e-ISSN

—

Volume of the periodical

134

Issue of the periodical within the volume

January 2019

Country of publishing house

FR - FRANCE

Number of pages

13

Pages from-to

81-93

UT code for WoS article

000455692000009

EID of the result in the Scopus database

2-s2.0-85051693532