Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73610296" target="_blank" >RIV/61989592:15310/21:73610296 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14740/21:00124430

Výsledek na webu

<a href="https://academic.oup.com/plphys/article/186/4/2124/6263871" target="_blank" >https://academic.oup.com/plphys/article/186/4/2124/6263871</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/plphys/kiab208" target="_blank" >10.1093/plphys/kiab208</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana

Popis výsledku v původním jazyce

Diatoms are a large group of marine algae that are responsible for about one-quarter of global carbon fixation. Light-harvesting complexes of diatoms are formed by the fucoxanthin chlorophyll a/c proteins and their overall organization around core complexes of photosystems (PSs) I and II is unique in the plant kingdom. Using cryo-electron tomography, we have elucidated the structural organization of PSII and PSI supercomplexes and their spatial segregation in the thylakoid membrane of the model diatom species Thalassiosira pseudonana. 3D sub-volume averaging revealed that the PSII supercomplex of T. pseudonana incorporates a trimeric form of light-harvesting antenna, which differs from the tetrameric antenna observed previously in another diatom, Chaetoceros gracilis. Surprisingly, the organization of the PSI supercomplex is conserved in both diatom species. These results strongly suggest that different diatom classes have various architectures of PSII as an adaptation strategy, whilst a convergent evolution occurred concerning PSI and the overall plastid structure.

Název v anglickém jazyce

Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana

Popis výsledku anglicky

Diatoms are a large group of marine algae that are responsible for about one-quarter of global carbon fixation. Light-harvesting complexes of diatoms are formed by the fucoxanthin chlorophyll a/c proteins and their overall organization around core complexes of photosystems (PSs) I and II is unique in the plant kingdom. Using cryo-electron tomography, we have elucidated the structural organization of PSII and PSI supercomplexes and their spatial segregation in the thylakoid membrane of the model diatom species Thalassiosira pseudonana. 3D sub-volume averaging revealed that the PSII supercomplex of T. pseudonana incorporates a trimeric form of light-harvesting antenna, which differs from the tetrameric antenna observed previously in another diatom, Chaetoceros gracilis. Surprisingly, the organization of the PSI supercomplex is conserved in both diatom species. These results strongly suggest that different diatom classes have various architectures of PSII as an adaptation strategy, whilst a convergent evolution occurred concerning PSI and the overall plastid structure.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10610 - Biophysics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

PLANT PHYSIOLOGY

ISSN

0032-0889

e-ISSN

—

Svazek periodika

186

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

2124-2136

Kód UT WoS článku

000703922000033

EID výsledku v databázi Scopus

2-s2.0-85112173374