Control of the maximal chlorophyll fluorescence yield by the Q(B) binding site

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F18%3A00489336" target="_blank" >RIV/61388971:_____/18:00489336 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s11099-018-0768-x" target="_blank" >http://dx.doi.org/10.1007/s11099-018-0768-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11099-018-0768-x" target="_blank" >10.1007/s11099-018-0768-x</a>

Result language

angličtina

Original language name

Control of the maximal chlorophyll fluorescence yield by the Q(B) binding site

Original language description

Differences in maximal yields of chlorophyll variable fluorescence (F-m) induced by single turnover (ST) and multiple turnover (MT) excitation are as great as 40%. Using mutants of Chlamydomonas reinhardtii we investigated potential mechanisms controlling F-m above and beyond the Q(A) redox level. F-m was low when the Q(B) binding site was occupied by PQ and high when the Q(B) binding site was empty or occupied by a PSII herbicide. Furthermore, in mutants with impaired rates of plastoquinol reoxidation, F-m was reached rapidly during MT excitation. In PSII particles with no mobile PQ pool, F-m was virtually identical to that obtained in the presence of PSII herbicides. We have developed a model to account for the variations in maximal fluorescence yields based on the occupancy of the Q(B) binding site. The model predicts that the variations in maximal fluorescence yields are caused by the capacity of secondary electron acceptors to reoxidize Q(A)(-).

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

<a href="/en/project/LO1416" target="_blank" >LO1416: Algatech plus</a><br>

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Photosynthetica

ISSN

0300-3604

e-ISSN

—

Volume of the periodical

56

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

150-162

UT code for WoS article

000430309200013

EID of the result in the Scopus database

2-s2.0-85040336704