Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition
The acclimation response of the chloroplast was studied in the green marine microalga Koliella antarctica exposed to a simulated austral night of 90 d. On the basis of the micro- and submicroscopic aspects observed, the photosynthetic pigment patterns monitored spectrophotometrically, and the course...
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INST ARCTIC ALPINE RES, UNIV COLORADO, BOULDER, CO 80309 USA
2005
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Online Access: | http://hdl.handle.net/11577/1425440 https://doi.org/10.1657/1523-0430(2005)037[0146:DOTCIK]2.0.CO;2 |
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ftunivpadovairis:oai:www.research.unipd.it:11577/1425440 2024-02-27T08:34:49+00:00 Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition BALDISSEROTTO C. FERRONI L. FASULO M. BONORA A. PANCALDI S. ANDREOLI, CARLO Baldisserotto, C. Ferroni, L. Andreoli, Carlo Fasulo, M. Bonora, A. Pancaldi, S. 2005 STAMPA http://hdl.handle.net/11577/1425440 https://doi.org/10.1657/1523-0430(2005)037[0146:DOTCIK]2.0.CO;2 eng eng INST ARCTIC ALPINE RES, UNIV COLORADO, BOULDER, CO 80309 USA info:eu-repo/semantics/altIdentifier/wos/WOS:000229484200002 volume:37 firstpage:146 lastpage:156 numberofpages:11 journal:ARCTIC ANTARCTIC AND ALPINE RESEARCH http://hdl.handle.net/11577/1425440 doi:10.1657/1523-0430(2005)037[0146:DOTCIK]2.0.CO;2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-19944424774 info:eu-repo/semantics/article 2005 ftunivpadovairis https://doi.org/10.1657/1523-0430(2005)037[0146:DOTCIK]2.0.CO;2 2024-01-31T17:36:31Z The acclimation response of the chloroplast was studied in the green marine microalga Koliella antarctica exposed to a simulated austral night of 90 d. On the basis of the micro- and submicroscopic aspects observed, the photosynthetic pigment patterns monitored spectrophotometrically, and the course of the assembly of the PSII chlorophyll-protein complexes evaluated microspectrofluorimetrically in vivo on single living cells, it was established that the alga tolerates the stress of light absence when cultured in the laboratory. During the treatment, the organism undergoes substantial structural and functional reorganization of the plastid, resulting in the formation of a chlorochromoplast-like structure, suitable for the storage, in different times and in specialized structures, of the products coming from the breakdown of the pre-existing plastid constituents. On the whole, the dark acclimation occurs in two different steps: a first acclimation, quickly realized, during the first 6 d and maintained up to 20 d of darkness, and a second acclimation period, starting from the 21st day, maintained up to the end of the experiment. Article in Journal/Newspaper Antarc* Antarctic and Alpine Research Antarctica Padua Research Archive (IRIS - Università degli Studi di Padova) Austral |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
description |
The acclimation response of the chloroplast was studied in the green marine microalga Koliella antarctica exposed to a simulated austral night of 90 d. On the basis of the micro- and submicroscopic aspects observed, the photosynthetic pigment patterns monitored spectrophotometrically, and the course of the assembly of the PSII chlorophyll-protein complexes evaluated microspectrofluorimetrically in vivo on single living cells, it was established that the alga tolerates the stress of light absence when cultured in the laboratory. During the treatment, the organism undergoes substantial structural and functional reorganization of the plastid, resulting in the formation of a chlorochromoplast-like structure, suitable for the storage, in different times and in specialized structures, of the products coming from the breakdown of the pre-existing plastid constituents. On the whole, the dark acclimation occurs in two different steps: a first acclimation, quickly realized, during the first 6 d and maintained up to 20 d of darkness, and a second acclimation period, starting from the 21st day, maintained up to the end of the experiment. |
author2 |
Baldisserotto, C. Ferroni, L. Andreoli, Carlo Fasulo, M. Bonora, A. Pancaldi, S. |
format |
Article in Journal/Newspaper |
author |
BALDISSEROTTO C. FERRONI L. FASULO M. BONORA A. PANCALDI S. ANDREOLI, CARLO |
spellingShingle |
BALDISSEROTTO C. FERRONI L. FASULO M. BONORA A. PANCALDI S. ANDREOLI, CARLO Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition |
author_facet |
BALDISSEROTTO C. FERRONI L. FASULO M. BONORA A. PANCALDI S. ANDREOLI, CARLO |
author_sort |
BALDISSEROTTO C. |
title |
Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition |
title_short |
Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition |
title_full |
Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition |
title_fullStr |
Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition |
title_full_unstemmed |
Dark-acclimation of the chloroplast in Koliella antarctica exposed to a simulated austral night condition |
title_sort |
dark-acclimation of the chloroplast in koliella antarctica exposed to a simulated austral night condition |
publisher |
INST ARCTIC ALPINE RES, UNIV COLORADO, BOULDER, CO 80309 USA |
publishDate |
2005 |
url |
http://hdl.handle.net/11577/1425440 https://doi.org/10.1657/1523-0430(2005)037[0146:DOTCIK]2.0.CO;2 |
geographic |
Austral |
geographic_facet |
Austral |
genre |
Antarc* Antarctic and Alpine Research Antarctica |
genre_facet |
Antarc* Antarctic and Alpine Research Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000229484200002 volume:37 firstpage:146 lastpage:156 numberofpages:11 journal:ARCTIC ANTARCTIC AND ALPINE RESEARCH http://hdl.handle.net/11577/1425440 doi:10.1657/1523-0430(2005)037[0146:DOTCIK]2.0.CO;2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-19944424774 |
op_doi |
https://doi.org/10.1657/1523-0430(2005)037[0146:DOTCIK]2.0.CO;2 |
_version_ |
1792056298760568832 |