Distinct non-photochemical quenching characteristics under constant and fluctuating light conditions: comparison between local and imported tobacco varietie

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F25%3A73631353" target="_blank" >RIV/61989592:15310/25:73631353 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0981942825007673" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0981942825007673</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.plaphy.2025.110239" target="_blank" >10.1016/j.plaphy.2025.110239</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Distinct non-photochemical quenching characteristics under constant and fluctuating light conditions: comparison between local and imported tobacco varietie

Popis výsledku v původním jazyce

To explore the variation in adaptability to fluctuating light environments, the non-photochemical quenching (NPQ) characteristics of a local tobacco variety Xiaofeng 8 and a foreign introduced variety K326, under both constant and fluctuating light conditions were examined. The field experiment demonstrated that Xiaofeng 8 exhibited significantly stronger growth compared to K326, with the dry weight per plant and leaf area of Xiaofeng 8 increased by 28.26 % and 32.85 % compared with those of K326, respectively. Further, a distinct activation pattern of NPQ was detected in both varieties during the transition from dark to high light. Building on this finding, our subsequent tests proved that, in the high light intensity segments of a fluctuating light environment, Xiaofeng 8 exhibited a higher NPQ value compared to K326, indicating an enhanced capacity for dissipating excess light energy as thermal energy and mitigating the potential risk of photodamage. Subsequent analysis of the contents of violaxanthin (V), antheraxanthin (A), and zeaxanthin (Z) within the two varieties after high - light treatment has proved that Xiaofeng 8 has a superior ability to dissipate excess absorbed light energy under high - light conditions. This ability may contribute to its better growth under fluctuating light environments. Mutants defective in violaxanthin de-epoxidase (VDE) and zeaxanthin epoxidase (ZEP) were employed to examine their involvement in regulating plants growth under fluctuating light condition. The results showed that defects in these enzymes affected the NPQ response and reduced the growth rate of the mutants under fluctuating light conditions, suggesting its pivotal role of xanthophyll in regulating plant growth and adaptation to variable light environments. Collectively, these findings emphasize the importance of exploring genetic resources improving plant NPQ under fluctuating light conditions from both domestic and imported varieties, thereby providing promising targets for selecting and breeding new crop varieties with improved yield.

Název v anglickém jazyce

Distinct non-photochemical quenching characteristics under constant and fluctuating light conditions: comparison between local and imported tobacco varietie

Popis výsledku anglicky

To explore the variation in adaptability to fluctuating light environments, the non-photochemical quenching (NPQ) characteristics of a local tobacco variety Xiaofeng 8 and a foreign introduced variety K326, under both constant and fluctuating light conditions were examined. The field experiment demonstrated that Xiaofeng 8 exhibited significantly stronger growth compared to K326, with the dry weight per plant and leaf area of Xiaofeng 8 increased by 28.26 % and 32.85 % compared with those of K326, respectively. Further, a distinct activation pattern of NPQ was detected in both varieties during the transition from dark to high light. Building on this finding, our subsequent tests proved that, in the high light intensity segments of a fluctuating light environment, Xiaofeng 8 exhibited a higher NPQ value compared to K326, indicating an enhanced capacity for dissipating excess light energy as thermal energy and mitigating the potential risk of photodamage. Subsequent analysis of the contents of violaxanthin (V), antheraxanthin (A), and zeaxanthin (Z) within the two varieties after high - light treatment has proved that Xiaofeng 8 has a superior ability to dissipate excess absorbed light energy under high - light conditions. This ability may contribute to its better growth under fluctuating light environments. Mutants defective in violaxanthin de-epoxidase (VDE) and zeaxanthin epoxidase (ZEP) were employed to examine their involvement in regulating plants growth under fluctuating light condition. The results showed that defects in these enzymes affected the NPQ response and reduced the growth rate of the mutants under fluctuating light conditions, suggesting its pivotal role of xanthophyll in regulating plant growth and adaptation to variable light environments. Collectively, these findings emphasize the importance of exploring genetic resources improving plant NPQ under fluctuating light conditions from both domestic and imported varieties, thereby providing promising targets for selecting and breeding new crop varieties with improved yield.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10610 - Biophysics

Projekt

<a href="/cs/project/EH23_021%2F0008909" target="_blank" >EH23_021/0008909: Interdisciplinární přístupy pro vývoj a aplikace nových materiálů v průmyslové, zemědělské a medicinské praxi</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

PLANT PHYSIOLOGY AND BIOCHEMISTRY

ISSN

0981-9428

e-ISSN

1873-2690

Svazek periodika

228

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

12

Strana od-do

"110239-1"-"110239-12"

Kód UT WoS článku

001535187400001

EID výsledku v databázi Scopus

2-s2.0-105010940177