Spruce versus Arabidopsis: different strategies of photosynthetic acclimation to light intensity change
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F22%3A00563290" target="_blank" >RIV/61389030:_____/22:00563290 - isvavai.cz</a>
Alternative codes found
RIV/86652079:_____/22:00563290 RIV/61988987:17310/22:A2302FY8 RIV/61988987:17310/22:N2302FY8 RIV/61989592:15310/22:73614809 RIV/00216224:14740/22:00128479
Result on the web
<a href="https://link.springer.com/article/10.1007/s11120-022-00949-0" target="_blank" >https://link.springer.com/article/10.1007/s11120-022-00949-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11120-022-00949-0" target="_blank" >10.1007/s11120-022-00949-0</a>
Alternative languages
Result language
angličtina
Original language name
Spruce versus Arabidopsis: different strategies of photosynthetic acclimation to light intensity change
Original language description
The acclimation of higher plants to different light intensities is associated with a reorganization of the photosynthetic apparatus. These modifications, namely, changes in the amount of peripheral antenna (LHCII) of photosystem (PS) II and changes in PSII/PSI stoichiometry, typically lead to an altered chlorophyll (Chl) a/b ratio. However, our previous studies show that in spruce, this ratio is not affected by changes in growth light intensity. The evolutionary loss of PSII antenna proteins LHCB3 and LHCB6 in the Pinaceae family is another indication that the light acclimation strategy in spruce could be different. Here we show that, unlike Arabidopsis, spruce does not modify its PSII/PSI ratio and PSII antenna size to maximize its photosynthetic performance during light acclimation. Its large PSII antenna consists of many weakly bound LHCIIs, which form effective quenching centers, even at relatively low light. This, together with sensitive photosynthetic control on the level of cytochrome b(6)f complex (protecting PSI), is the crucial photoprotective mechanism in spruce. High-light acclimation of spruce involves the disruption of PSII macro-organization, reduction of the amount of both PSII and PSI core complexes, synthesis of stress proteins that bind released Chls, and formation of locked-in quenching centers from uncoupled LHCIIs. Such response has been previously observed in the evergreen angiosperm Monstera deliciosa exposed to high light. We suggest that, in contrast to annuals, shade-tolerant evergreen land plants have their own strategy to cope with light intensity changes and the hallmark of this strategy is a stable Chl a/b ratio.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10610 - Biophysics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Photosynthesis Research
ISSN
0166-8595
e-ISSN
1573-5079
Volume of the periodical
154
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
20
Pages from-to
21-40
UT code for WoS article
000841690900001
EID of the result in the Scopus database
2-s2.0-85136253273