System responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum
Due to the selective attenuation of solar light and the absorption properties of seawater and seawater constituents, free-floating photosynthetic organisms have to cope with rapid and unpredictable changes in both intensity and spectral quality. We have studied the transcriptional, metabolic and pho...
Gespeichert in:
| Veröffentlicht in: | PloS one 2014-12, Vol.9 (12), p.e114211-e114211 |
|---|---|
| Hauptverfasser: | , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | e114211 |
|---|---|
| container_issue | 12 |
| container_start_page | e114211 |
| container_title | PloS one |
| container_volume | 9 |
| creator | Valle, Kristin Collier Nymark, Marianne Aamot, Inga Hancke, Kasper Winge, Per Andresen, Kjersti Johnsen, Geir Brembu, Tore Bones, Atle M |
| description | Due to the selective attenuation of solar light and the absorption properties of seawater and seawater constituents, free-floating photosynthetic organisms have to cope with rapid and unpredictable changes in both intensity and spectral quality. We have studied the transcriptional, metabolic and photo-physiological responses to light of different spectral quality in the marine diatom Phaeodactylum tricornutum through time-series studies of cultures exposed to equal doses of photosynthetically usable radiation of blue, green and red light. The experiments showed that short-term differences in gene expression and profiles are mainly light quality-dependent. Transcription of photosynthesis-associated nuclear genes was activated mainly through a light quality-independent mechanism likely to rely on chloroplast-to-nucleus signaling. In contrast, genes encoding proteins important for photoprotection and PSII repair were highly dependent on a blue light receptor-mediated signal. Changes in energy transfer efficiency by light-harvesting pigments were spectrally dependent; furthermore, a declining trend in photosynthetic efficiency was observed in red light. The combined results suggest that diatoms possess a light quality-dependent ability to activate photoprotection and efficient repair of photodamaged PSII. In spite of approximately equal numbers of PSII-absorbed quanta in blue, green and red light, the spectral quality of light is important for diatom responses to ambient light conditions. |
| doi_str_mv | 10.1371/journal.pone.0114211 |
| format | Article |
| fullrecord | <record><control><sourceid>gale_plos_</sourceid><recordid>TN_cdi_plos_journals_1629929541</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A416969238</galeid><doaj_id>oai_doaj_org_article_003e3d20d56342509b62840db2fd2101</doaj_id><sourcerecordid>A416969238</sourcerecordid><originalsourceid>FETCH-LOGICAL-c692t-8cb7f8232848d8d8a3461ec3623982d14873619b9c9aa9ab6d6ce0d20c45d4e83</originalsourceid><addsrcrecordid>eNqNk11rFDEUhgdRbK3-A9GAIArdNR-z2cmNUIofhULFqrchk5zZSckk2yQj7u_wD5txt6UrvZBczCTznPfkvGdOVT0neE7Ykry7CmP0ys3XwcMcE1JTQh5Uh0QwOuMUs4d33g-qJyldYbxgDeePqwO6qJd4ychh9ftykzIMKEIqQgkSygHB9agcMmHahg6t-5BD2vjcQ7ZaObdBY1KtAxSVsSrb4CesdSMco1UE8MdIeVM0DXJ21WdkPSrBaFDRekBTTBjQl15BMErnjRsHlKPVIfoxj8PT6lGnXIJnu-dR9f3jh2-nn2fnF5_OTk_OZ5oLmmeNbpddQxlt6saUpVjNCWjGKRMNNaRulowT0QotlBKq5YZrwIZiXS9MDQ07ql5uddcuJLnzM0nCqRBULGpSiLMtYYK6kutoSwUbGZSVfw9CXEkViycOJMYMWBE3C85qusCi5eVi2LS0M5TgSev9LtvYDmA0-ByV2xPd_-JtL1fhpyxqtWC8CLzZCcRwPULKcrBJg3PKQxine5fETWkyLeirf9D7q9tRK1UKsL4LJa-eROVJTbgoLrPJpfk9VFkGhtIyD50t53sBb_cCCpPhV16pMSV5dvn1_9mLH_vs6ztsD8rlPgU3Tv9f2gfrLahjSClCd2sywXKanRs35DQ7cjc7JezF3QbdBt0MC_sDQcYVgA</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1629929541</pqid></control><display><type>article</type><title>System responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum</title><source>MEDLINE</source><source>DOAJ Directory of Open Access Journals</source><source>Public Library of Science (PLoS)</source><source>EZB-FREE-00999 freely available EZB journals</source><source>PubMed Central</source><source>Free Full-Text Journals in Chemistry</source><creator>Valle, Kristin Collier ; Nymark, Marianne ; Aamot, Inga ; Hancke, Kasper ; Winge, Per ; Andresen, Kjersti ; Johnsen, Geir ; Brembu, Tore ; Bones, Atle M</creator><contributor>Subramanyam, Rajagopal</contributor><creatorcontrib>Valle, Kristin Collier ; Nymark, Marianne ; Aamot, Inga ; Hancke, Kasper ; Winge, Per ; Andresen, Kjersti ; Johnsen, Geir ; Brembu, Tore ; Bones, Atle M ; Subramanyam, Rajagopal</creatorcontrib><description>Due to the selective attenuation of solar light and the absorption properties of seawater and seawater constituents, free-floating photosynthetic organisms have to cope with rapid and unpredictable changes in both intensity and spectral quality. We have studied the transcriptional, metabolic and photo-physiological responses to light of different spectral quality in the marine diatom Phaeodactylum tricornutum through time-series studies of cultures exposed to equal doses of photosynthetically usable radiation of blue, green and red light. The experiments showed that short-term differences in gene expression and profiles are mainly light quality-dependent. Transcription of photosynthesis-associated nuclear genes was activated mainly through a light quality-independent mechanism likely to rely on chloroplast-to-nucleus signaling. In contrast, genes encoding proteins important for photoprotection and PSII repair were highly dependent on a blue light receptor-mediated signal. Changes in energy transfer efficiency by light-harvesting pigments were spectrally dependent; furthermore, a declining trend in photosynthetic efficiency was observed in red light. The combined results suggest that diatoms possess a light quality-dependent ability to activate photoprotection and efficient repair of photodamaged PSII. In spite of approximately equal numbers of PSII-absorbed quanta in blue, green and red light, the spectral quality of light is important for diatom responses to ambient light conditions.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0114211</identifier><identifier>PMID: 25470731</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Bacillariophyta ; Biology and Life Sciences ; Carotenoids - biosynthesis ; Chlorophyll - biosynthesis ; Chlorophyll - genetics ; Chloroplasts - metabolism ; Diatoms ; Diatoms - physiology ; Diatoms - radiation effects ; Energy transfer ; Gene expression ; Genes ; Light ; Light quality ; Nuclei ; Phaeodactylum tricornutum ; Photosynthesis ; Photosynthesis - genetics ; Photosystem II ; Photosystem II Protein Complex - biosynthesis ; Photosystem II Protein Complex - genetics ; Physiological aspects ; Physiological responses ; Phytochemistry ; Pigments ; Proteins ; Radiation ; Repair ; Sea-water ; Seawater ; Spectra ; Transcription ; Transcription, Genetic ; Transcriptional Activation - radiation effects ; Transcriptome</subject><ispartof>PloS one, 2014-12, Vol.9 (12), p.e114211-e114211</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Valle et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2014 Valle et al 2014 Valle et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-8cb7f8232848d8d8a3461ec3623982d14873619b9c9aa9ab6d6ce0d20c45d4e83</citedby><cites>FETCH-LOGICAL-c692t-8cb7f8232848d8d8a3461ec3623982d14873619b9c9aa9ab6d6ce0d20c45d4e83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4254936/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4254936/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,724,777,781,861,882,2096,2915,23847,27905,27906,53772,53774,79349,79350</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25470731$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Subramanyam, Rajagopal</contributor><creatorcontrib>Valle, Kristin Collier</creatorcontrib><creatorcontrib>Nymark, Marianne</creatorcontrib><creatorcontrib>Aamot, Inga</creatorcontrib><creatorcontrib>Hancke, Kasper</creatorcontrib><creatorcontrib>Winge, Per</creatorcontrib><creatorcontrib>Andresen, Kjersti</creatorcontrib><creatorcontrib>Johnsen, Geir</creatorcontrib><creatorcontrib>Brembu, Tore</creatorcontrib><creatorcontrib>Bones, Atle M</creatorcontrib><title>System responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Due to the selective attenuation of solar light and the absorption properties of seawater and seawater constituents, free-floating photosynthetic organisms have to cope with rapid and unpredictable changes in both intensity and spectral quality. We have studied the transcriptional, metabolic and photo-physiological responses to light of different spectral quality in the marine diatom Phaeodactylum tricornutum through time-series studies of cultures exposed to equal doses of photosynthetically usable radiation of blue, green and red light. The experiments showed that short-term differences in gene expression and profiles are mainly light quality-dependent. Transcription of photosynthesis-associated nuclear genes was activated mainly through a light quality-independent mechanism likely to rely on chloroplast-to-nucleus signaling. In contrast, genes encoding proteins important for photoprotection and PSII repair were highly dependent on a blue light receptor-mediated signal. Changes in energy transfer efficiency by light-harvesting pigments were spectrally dependent; furthermore, a declining trend in photosynthetic efficiency was observed in red light. The combined results suggest that diatoms possess a light quality-dependent ability to activate photoprotection and efficient repair of photodamaged PSII. In spite of approximately equal numbers of PSII-absorbed quanta in blue, green and red light, the spectral quality of light is important for diatom responses to ambient light conditions.</description><subject>Bacillariophyta</subject><subject>Biology and Life Sciences</subject><subject>Carotenoids - biosynthesis</subject><subject>Chlorophyll - biosynthesis</subject><subject>Chlorophyll - genetics</subject><subject>Chloroplasts - metabolism</subject><subject>Diatoms</subject><subject>Diatoms - physiology</subject><subject>Diatoms - radiation effects</subject><subject>Energy transfer</subject><subject>Gene expression</subject><subject>Genes</subject><subject>Light</subject><subject>Light quality</subject><subject>Nuclei</subject><subject>Phaeodactylum tricornutum</subject><subject>Photosynthesis</subject><subject>Photosynthesis - genetics</subject><subject>Photosystem II</subject><subject>Photosystem II Protein Complex - biosynthesis</subject><subject>Photosystem II Protein Complex - genetics</subject><subject>Physiological aspects</subject><subject>Physiological responses</subject><subject>Phytochemistry</subject><subject>Pigments</subject><subject>Proteins</subject><subject>Radiation</subject><subject>Repair</subject><subject>Sea-water</subject><subject>Seawater</subject><subject>Spectra</subject><subject>Transcription</subject><subject>Transcription, Genetic</subject><subject>Transcriptional Activation - radiation effects</subject><subject>Transcriptome</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>DOA</sourceid><recordid>eNqNk11rFDEUhgdRbK3-A9GAIArdNR-z2cmNUIofhULFqrchk5zZSckk2yQj7u_wD5txt6UrvZBczCTznPfkvGdOVT0neE7Ykry7CmP0ys3XwcMcE1JTQh5Uh0QwOuMUs4d33g-qJyldYbxgDeePqwO6qJd4ychh9ftykzIMKEIqQgkSygHB9agcMmHahg6t-5BD2vjcQ7ZaObdBY1KtAxSVsSrb4CesdSMco1UE8MdIeVM0DXJ21WdkPSrBaFDRekBTTBjQl15BMErnjRsHlKPVIfoxj8PT6lGnXIJnu-dR9f3jh2-nn2fnF5_OTk_OZ5oLmmeNbpddQxlt6saUpVjNCWjGKRMNNaRulowT0QotlBKq5YZrwIZiXS9MDQ07ql5uddcuJLnzM0nCqRBULGpSiLMtYYK6kutoSwUbGZSVfw9CXEkViycOJMYMWBE3C85qusCi5eVi2LS0M5TgSev9LtvYDmA0-ByV2xPd_-JtL1fhpyxqtWC8CLzZCcRwPULKcrBJg3PKQxine5fETWkyLeirf9D7q9tRK1UKsL4LJa-eROVJTbgoLrPJpfk9VFkGhtIyD50t53sBb_cCCpPhV16pMSV5dvn1_9mLH_vs6ztsD8rlPgU3Tv9f2gfrLahjSClCd2sywXKanRs35DQ7cjc7JezF3QbdBt0MC_sDQcYVgA</recordid><startdate>20141203</startdate><enddate>20141203</enddate><creator>Valle, Kristin Collier</creator><creator>Nymark, Marianne</creator><creator>Aamot, Inga</creator><creator>Hancke, Kasper</creator><creator>Winge, Per</creator><creator>Andresen, Kjersti</creator><creator>Johnsen, Geir</creator><creator>Brembu, Tore</creator><creator>Bones, Atle M</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20141203</creationdate><title>System responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum</title><author>Valle, Kristin Collier ; Nymark, Marianne ; Aamot, Inga ; Hancke, Kasper ; Winge, Per ; Andresen, Kjersti ; Johnsen, Geir ; Brembu, Tore ; Bones, Atle M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-8cb7f8232848d8d8a3461ec3623982d14873619b9c9aa9ab6d6ce0d20c45d4e83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Bacillariophyta</topic><topic>Biology and Life Sciences</topic><topic>Carotenoids - biosynthesis</topic><topic>Chlorophyll - biosynthesis</topic><topic>Chlorophyll - genetics</topic><topic>Chloroplasts - metabolism</topic><topic>Diatoms</topic><topic>Diatoms - physiology</topic><topic>Diatoms - radiation effects</topic><topic>Energy transfer</topic><topic>Gene expression</topic><topic>Genes</topic><topic>Light</topic><topic>Light quality</topic><topic>Nuclei</topic><topic>Phaeodactylum tricornutum</topic><topic>Photosynthesis</topic><topic>Photosynthesis - genetics</topic><topic>Photosystem II</topic><topic>Photosystem II Protein Complex - biosynthesis</topic><topic>Photosystem II Protein Complex - genetics</topic><topic>Physiological aspects</topic><topic>Physiological responses</topic><topic>Phytochemistry</topic><topic>Pigments</topic><topic>Proteins</topic><topic>Radiation</topic><topic>Repair</topic><topic>Sea-water</topic><topic>Seawater</topic><topic>Spectra</topic><topic>Transcription</topic><topic>Transcription, Genetic</topic><topic>Transcriptional Activation - radiation effects</topic><topic>Transcriptome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Valle, Kristin Collier</creatorcontrib><creatorcontrib>Nymark, Marianne</creatorcontrib><creatorcontrib>Aamot, Inga</creatorcontrib><creatorcontrib>Hancke, Kasper</creatorcontrib><creatorcontrib>Winge, Per</creatorcontrib><creatorcontrib>Andresen, Kjersti</creatorcontrib><creatorcontrib>Johnsen, Geir</creatorcontrib><creatorcontrib>Brembu, Tore</creatorcontrib><creatorcontrib>Bones, Atle M</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Gale In Context: Opposing Viewpoints</collection><collection>Gale In Context: Science</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Immunology Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Agricultural Science Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Nursing & Allied Health Premium</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Valle, Kristin Collier</au><au>Nymark, Marianne</au><au>Aamot, Inga</au><au>Hancke, Kasper</au><au>Winge, Per</au><au>Andresen, Kjersti</au><au>Johnsen, Geir</au><au>Brembu, Tore</au><au>Bones, Atle M</au><au>Subramanyam, Rajagopal</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>System responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2014-12-03</date><risdate>2014</risdate><volume>9</volume><issue>12</issue><spage>e114211</spage><epage>e114211</epage><pages>e114211-e114211</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Due to the selective attenuation of solar light and the absorption properties of seawater and seawater constituents, free-floating photosynthetic organisms have to cope with rapid and unpredictable changes in both intensity and spectral quality. We have studied the transcriptional, metabolic and photo-physiological responses to light of different spectral quality in the marine diatom Phaeodactylum tricornutum through time-series studies of cultures exposed to equal doses of photosynthetically usable radiation of blue, green and red light. The experiments showed that short-term differences in gene expression and profiles are mainly light quality-dependent. Transcription of photosynthesis-associated nuclear genes was activated mainly through a light quality-independent mechanism likely to rely on chloroplast-to-nucleus signaling. In contrast, genes encoding proteins important for photoprotection and PSII repair were highly dependent on a blue light receptor-mediated signal. Changes in energy transfer efficiency by light-harvesting pigments were spectrally dependent; furthermore, a declining trend in photosynthetic efficiency was observed in red light. The combined results suggest that diatoms possess a light quality-dependent ability to activate photoprotection and efficient repair of photodamaged PSII. In spite of approximately equal numbers of PSII-absorbed quanta in blue, green and red light, the spectral quality of light is important for diatom responses to ambient light conditions.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>25470731</pmid><doi>10.1371/journal.pone.0114211</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1932-6203 |
| ispartof | PloS one, 2014-12, Vol.9 (12), p.e114211-e114211 |
| issn | 1932-6203 1932-6203 |
| language | eng |
| recordid | cdi_plos_journals_1629929541 |
| source | MEDLINE; DOAJ Directory of Open Access Journals; Public Library of Science (PLoS); EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Bacillariophyta Biology and Life Sciences Carotenoids - biosynthesis Chlorophyll - biosynthesis Chlorophyll - genetics Chloroplasts - metabolism Diatoms Diatoms - physiology Diatoms - radiation effects Energy transfer Gene expression Genes Light Light quality Nuclei Phaeodactylum tricornutum Photosynthesis Photosynthesis - genetics Photosystem II Photosystem II Protein Complex - biosynthesis Photosystem II Protein Complex - genetics Physiological aspects Physiological responses Phytochemistry Pigments Proteins Radiation Repair Sea-water Seawater Spectra Transcription Transcription, Genetic Transcriptional Activation - radiation effects Transcriptome |
| title | System responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T19%3A16%3A55IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=System%20responses%20to%20equal%20doses%20of%20photosynthetically%20usable%20radiation%20of%20blue,%20green,%20and%20red%20light%20in%20the%20marine%20diatom%20Phaeodactylum%20tricornutum&rft.jtitle=PloS%20one&rft.au=Valle,%20Kristin%20Collier&rft.date=2014-12-03&rft.volume=9&rft.issue=12&rft.spage=e114211&rft.epage=e114211&rft.pages=e114211-e114211&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0114211&rft_dat=%3Cgale_plos_%3EA416969238%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1629929541&rft_id=info:pmid/25470731&rft_galeid=A416969238&rft_doaj_id=oai_doaj_org_article_003e3d20d56342509b62840db2fd2101&rfr_iscdi=true |