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

J 2021

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

ARSHAD, R., C. CALVARUSO, E.J. BOEKEMA, C. BUCHEL, R. KOURIL et. al.

Basic information

Original name

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

Authors

ARSHAD, R., C. CALVARUSO, E.J. BOEKEMA, C. BUCHEL and R. KOURIL

Edition

Plant Physiology, ROCKVILLE, American Society of Plant Physiologists, 2021, 0032-0889

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 8.005

RIV identification code

RIV/00216224:14740/21:00124430

Organization unit

Central European Institute of Technology

DOI

http://dx.doi.org/10.1093/plphys/kiab208

UT WoS

000703922000033

Keywords in English

LIGHT-HARVESTING COMPLEX; PHOTOSYSTEM-II; PROTEIN COMPLEXES; ORGANIZATION; VISUALIZATION; LOCALIZATION; SPINACH; PSI

Abstract

V originále

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.

Links

90043, large research infrastructures

Name: CIISB

Citovat

ARSHAD, R., C. CALVARUSO, E.J. BOEKEMA, C. BUCHEL and R. KOURIL. Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana. Plant Physiology. ROCKVILLE: American Society of Plant Physiologists, 2021, vol. 186, No 4, p. 2124-2136. ISSN 0032-0889. Available from: https://dx.doi.org/10.1093/plphys/kiab208.

@article{1842502,
   author = {Arshad, R. and Calvaruso, C. and Boekema, E.J. and Buchel, C. and Kouril, R.},
   article_location = {ROCKVILLE},
   article_number = {4},
   doi = {http://dx.doi.org/10.1093/plphys/kiab208},
   keywords = {LIGHT-HARVESTING COMPLEX; PHOTOSYSTEM-II; PROTEIN COMPLEXES; ORGANIZATION; VISUALIZATION; LOCALIZATION; SPINACH; PSI},
   language = {eng},
   issn = {0032-0889},
   journal = {Plant Physiology},
   title = {Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana},
   url = {https://academic.oup.com/plphys/article/186/4/2124/6263871},
   volume = {186},
   year = {2021}
}

TY  - JOUR
ID  - 1842502
AU  - Arshad, R. - Calvaruso, C. - Boekema, E.J. - Buchel, C. - Kouril, R.
PY  - 2021
TI  - Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana
JF  - Plant Physiology
VL  - 186
IS  - 4
SP  - 2124-2136
EP  - 2124-2136
PB  - American Society of Plant Physiologists
SN  - 00320889
KW  - LIGHT-HARVESTING COMPLEX
KW  - PHOTOSYSTEM-II
KW  - PROTEIN COMPLEXES
KW  - ORGANIZATION
KW  - VISUALIZATION
KW  - LOCALIZATION
KW  - SPINACH
KW  - PSI
UR  - https://academic.oup.com/plphys/article/186/4/2124/6263871
N2  - 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.
ER  -

ARSHAD, R., C. CALVARUSO, E.J. BOEKEMA, C. BUCHEL and R. KOURIL. Revealing the architecture of the photosynthetic apparatus in the diatom Thalassiosira pseudonana. \textit{Plant Physiology}. ROCKVILLE: American Society of Plant Physiologists, 2021, vol.~186, No~4, p.~2124-2136. ISSN~0032-0889. Available from: https://dx.doi.org/10.1093/plphys/kiab208.

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