Low temperature induced modulation of photosynthetic induction in non-acclimated and cold-acclimated Arabidopsis thaliana: chlorophyll a fluorescence and gas-exchange measurements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F19%3A00494442" target="_blank" >RIV/86652079:_____/19:00494442 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/19:00113505

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs11120-018-0588-7" target="_blank" >https://link.springer.com/article/10.1007%2Fs11120-018-0588-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11120-018-0588-7" target="_blank" >10.1007/s11120-018-0588-7</a>

Result language

angličtina

Original language name

Low temperature induced modulation of photosynthetic induction in non-acclimated and cold-acclimated Arabidopsis thaliana: chlorophyll a fluorescence and gas-exchange measurements

Original language description

Cold acclimation modifies the photosynthetic machinery and enables plants to survive at sub-zero temperatures, whereas in warm habitats, many species suffer even at non-freezing temperatures. We have measured chlorophyll a fluorescence (ChlF) and CO2 assimilation to investigate the effects of cold acclimation, and of low temperatures, on a cold-sensitive Arabidopsis thaliana accession C24. Upon excitation with low intensity (40 µmol photons m− 2 s− 1) ~ 620 nm light, slow (minute range) ChlF transients, at ~ 22 °C, showed two waves in the SMT phase (S, semi steady-state, M, maximum, T, terminal steady-state), whereas CO2 assimilation showed a linear increase with time. Low-temperature treatment (down to − 1.5 °C) strongly modulated the SMT phase and stimulated a peak in the CO2 assimilation induction curve. We show that the SMT phase, at ~ 22 °C, was abolished when measured under high actinic irradiance, or when 3-(3, 4-dichlorophenyl)-1, 1- dimethylurea (DCMU, an inhibitor of electron flow) or methyl viologen (MV, a Photosystem I (PSI) electron acceptor) was added to the system. Our data suggest that stimulation of the SMT wave, at low temperatures, has multiple reasons, which may include changes in both photochemical and biochemical reactions leading to modulations in non-photochemical quenching (NPQ) of the excited state of Chl, “state transitions,” as well as changes in the rate of cyclic electron flow through PSI. Further, we suggest that cold acclimation, in accession C24, promotes “state transition” and protects photosystems by preventing high excitation pressure during low-temperature exposure.

Czech name

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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

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OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

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

Photosynthesis Research

ISSN

0166-8595

e-ISSN

—

Volume of the periodical

139

Issue of the periodical within the volume

1-3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

21

Pages from-to

123-143

UT code for WoS article

000458553100010

EID of the result in the Scopus database

2-s2.0-85055329742