Magnetic field protects plants against high light by slowing down production of singlet oxygen

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F11%3A00359476" target="_blank" >RIV/67179843:_____/11:00359476 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1111/j.1399-3054.2011.01453.x" target="_blank" >http://dx.doi.org/10.1111/j.1399-3054.2011.01453.x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/j.1399-3054.2011.01453.x" target="_blank" >10.1111/j.1399-3054.2011.01453.x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic field protects plants against high light by slowing down production of singlet oxygen

Popis výsledku v původním jazyce

Recombination of the primary radical pair of photosystem II (PSII) of photosynthesis may produce the triplet state of the primary donor of PSII. Triplet formation is potentially harmful because chlorophyll triplets can react with molecular oxygen to produce the reactive singlet oxygen (1O(2)). The yield of 1O(2) is expected to be directly proportional to the triplet yield and the triplet yield of charge recombination can be lowered with a magnetic field of 100-300 mT. In this study, we illuminated intact pumpkin leaves with strong light in the presence and absence of a magnetic field and found that the magnetic field protects against photoinhibition of PSII. The result suggests that radical pair recombination is responsible for significant part of 1O(2) production in the chloroplast. The magnetic field effect vanished if leaves were illuminated in the presence of lincomycin, an inhibitor of chloroplast protein synthesis, or if isolated thylakoid membranes were exposed to light. These d

Název v anglickém jazyce

Magnetic field protects plants against high light by slowing down production of singlet oxygen

Popis výsledku anglicky

Recombination of the primary radical pair of photosystem II (PSII) of photosynthesis may produce the triplet state of the primary donor of PSII. Triplet formation is potentially harmful because chlorophyll triplets can react with molecular oxygen to produce the reactive singlet oxygen (1O(2)). The yield of 1O(2) is expected to be directly proportional to the triplet yield and the triplet yield of charge recombination can be lowered with a magnetic field of 100-300 mT. In this study, we illuminated intact pumpkin leaves with strong light in the presence and absence of a magnetic field and found that the magnetic field protects against photoinhibition of PSII. The result suggests that radical pair recombination is responsible for significant part of 1O(2) production in the chloroplast. The magnetic field effect vanished if leaves were illuminated in the presence of lincomycin, an inhibitor of chloroplast protein synthesis, or if isolated thylakoid membranes were exposed to light. These d

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Physiologia Plantarum

ISSN

0031-9317

e-ISSN

—

Svazek periodika

142

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DK - Dánské království

Počet stran výsledku

9

Strana od-do

26-34

Kód UT WoS článku

000289470800004

EID výsledku v databázi Scopus

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