Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly

Chlorosomes are the main light harvesting complexes of green photosynthetic bacteria. Recently, a lamellar model was proposed for the arrangement of pigment aggregates in Chlorobium tepidum chlorosomes, which contain bacteriochlorophyll (BChl) c as the main pigment. Here we demonstrate that the lame...

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Autores: Psencik, Jakub, Arellano, Juan B., Ikonen, Teemu P., Borrego i Moré, Carles, Laurinmaki, Pasi A., Butcher, Sarah J., Serimaa, Ritva E., Tuma, Roman
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/3563
Acceso en línea:http://hdl.handle.net/10256/3563
Access Level:acceso abierto
Palabra clave:Bacteris fotosintetitzadors
Carotenoides
Pigments fotosintètics
Carotenoids
Photosynthetic bacteria
Photosynthetic pigments
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spelling Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assemblyPsencik, JakubArellano, Juan B.Ikonen, Teemu P.Borrego i Moré, CarlesLaurinmaki, Pasi A.Butcher, Sarah J.Serimaa, Ritva E.Tuma, RomanBacteris fotosintetitzadorsCarotenoidesPigments fotosintèticsCarotenoidsPhotosynthetic bacteriaPhotosynthetic pigmentsChlorosomes are the main light harvesting complexes of green photosynthetic bacteria. Recently, a lamellar model was proposed for the arrangement of pigment aggregates in Chlorobium tepidum chlorosomes, which contain bacteriochlorophyll (BChl) c as the main pigment. Here we demonstrate that the lamellar organization is also found in chlorosomes from two brown-colored species (Chl. phaeovibrioides and Chl. phaeobacteroides) containing BChl e as the main pigment. This suggests that the lamellar model is universal among green sulfur bacteria. In contrast to green-colored Chl. tepidum, chlorosomes from the brown-colored species often contain domains of lamellar aggregates that may help them to survive in extremely low light conditions. We suggest that carotenoids are localized between the lamellar planes and drive lamellar assembly by augmenting hydrophobic interactions. A model for chlorosome assembly, which accounts for the role of carotenoids and secondary BChl homologs, is presentedBiophysical Society2006info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10256/3563http://hdl.handle.net/10256/3563© Biophysical Journal, 2006, vol. 91, núm. 4, p.1433-1440Articles publicats (D-B)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1529/biophysj.106.084228info:eu-repo/semantics/altIdentifier/issn/0006-3495Tots els drets reservatsinfo:eu-repo/semantics/openAccessoai:recercat.cat:10256/35632026-05-29T05:05:01Z
dc.title.none.fl_str_mv Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
title Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
spellingShingle Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
Psencik, Jakub
Bacteris fotosintetitzadors
Carotenoides
Pigments fotosintètics
Carotenoids
Photosynthetic bacteria
Photosynthetic pigments
title_short Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
title_full Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
title_fullStr Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
title_full_unstemmed Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
title_sort Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
dc.creator.none.fl_str_mv Psencik, Jakub
Arellano, Juan B.
Ikonen, Teemu P.
Borrego i Moré, Carles
Laurinmaki, Pasi A.
Butcher, Sarah J.
Serimaa, Ritva E.
Tuma, Roman
author Psencik, Jakub
author_facet Psencik, Jakub
Arellano, Juan B.
Ikonen, Teemu P.
Borrego i Moré, Carles
Laurinmaki, Pasi A.
Butcher, Sarah J.
Serimaa, Ritva E.
Tuma, Roman
author_role author
author2 Arellano, Juan B.
Ikonen, Teemu P.
Borrego i Moré, Carles
Laurinmaki, Pasi A.
Butcher, Sarah J.
Serimaa, Ritva E.
Tuma, Roman
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Bacteris fotosintetitzadors
Carotenoides
Pigments fotosintètics
Carotenoids
Photosynthetic bacteria
Photosynthetic pigments
topic Bacteris fotosintetitzadors
Carotenoides
Pigments fotosintètics
Carotenoids
Photosynthetic bacteria
Photosynthetic pigments
description Chlorosomes are the main light harvesting complexes of green photosynthetic bacteria. Recently, a lamellar model was proposed for the arrangement of pigment aggregates in Chlorobium tepidum chlorosomes, which contain bacteriochlorophyll (BChl) c as the main pigment. Here we demonstrate that the lamellar organization is also found in chlorosomes from two brown-colored species (Chl. phaeovibrioides and Chl. phaeobacteroides) containing BChl e as the main pigment. This suggests that the lamellar model is universal among green sulfur bacteria. In contrast to green-colored Chl. tepidum, chlorosomes from the brown-colored species often contain domains of lamellar aggregates that may help them to survive in extremely low light conditions. We suggest that carotenoids are localized between the lamellar planes and drive lamellar assembly by augmenting hydrophobic interactions. A model for chlorosome assembly, which accounts for the role of carotenoids and secondary BChl homologs, is presented
publishDate 2006
dc.date.none.fl_str_mv 2006
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/3563
http://hdl.handle.net/10256/3563
url http://hdl.handle.net/10256/3563
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1529/biophysj.106.084228
info:eu-repo/semantics/altIdentifier/issn/0006-3495
dc.rights.none.fl_str_mv Tots els drets reservats
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Tots els drets reservats
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Biophysical Society
publisher.none.fl_str_mv Biophysical Society
dc.source.none.fl_str_mv © Biophysical Journal, 2006, vol. 91, núm. 4, p.1433-1440
Articles publicats (D-B)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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