Collective electrical oscillations of a diatom population induced by dark stress
Diatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of carbon. However, they can evolve into harmful blooms through a resourceful communication mechanism, not yet fully understood. Here, we demon...
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| Veröffentlicht in: | Scientific reports 2018-04, Vol.8 (1), p.5484-8, Article 5484 |
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| creator | Rocha, Paulo R. F. Silva, Alexandra D. Godinho, Lia Dane, Willem Estrela, Pedro Vandamme, Lode K. J. Pereira-Leal, Jose B. de Leeuw, Dago M. Leite, Ricardo B. |
| description | Diatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of carbon. However, they can evolve into harmful blooms through a resourceful communication mechanism, not yet fully understood. Here, we demonstrate that a population of diatoms under darkness show quasi-periodic electrical oscillations, or intercellular waves. The origin is paracrine signaling, which is a feedback, or survival, mechanism that counteracts changes in the physicochemical environment. The intracellular messenger is related to Ca
2+
ions since spatiotemporal changes in their concentration match the characteristics of the intercellular waves. Our conclusion is supported by using a Ca
2+
channel inhibitor. The transport of Ca
2+
ions through the membrane to the extracellular medium is blocked and the intercellular waves disappear. The translation of microalgae cooperative signaling paves the way for early detection and prevention of harmful blooms and an extensive range of stress-induced alterations in the aquatic ecosystem. |
| doi_str_mv | 10.1038/s41598-018-23928-9 |
| format | Article |
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2+
ions since spatiotemporal changes in their concentration match the characteristics of the intercellular waves. Our conclusion is supported by using a Ca
2+
channel inhibitor. The transport of Ca
2+
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2+
ions since spatiotemporal changes in their concentration match the characteristics of the intercellular waves. Our conclusion is supported by using a Ca
2+
channel inhibitor. The transport of Ca
2+
ions through the membrane to the extracellular medium is blocked and the intercellular waves disappear. 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F.</au><au>Silva, Alexandra D.</au><au>Godinho, Lia</au><au>Dane, Willem</au><au>Estrela, Pedro</au><au>Vandamme, Lode K. J.</au><au>Pereira-Leal, Jose B.</au><au>de Leeuw, Dago M.</au><au>Leite, Ricardo B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Collective electrical oscillations of a diatom population induced by dark stress</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2018-04-03</date><risdate>2018</risdate><volume>8</volume><issue>1</issue><spage>5484</spage><epage>8</epage><pages>5484-8</pages><artnum>5484</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>Diatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of carbon. However, they can evolve into harmful blooms through a resourceful communication mechanism, not yet fully understood. Here, we demonstrate that a population of diatoms under darkness show quasi-periodic electrical oscillations, or intercellular waves. The origin is paracrine signaling, which is a feedback, or survival, mechanism that counteracts changes in the physicochemical environment. The intracellular messenger is related to Ca
2+
ions since spatiotemporal changes in their concentration match the characteristics of the intercellular waves. Our conclusion is supported by using a Ca
2+
channel inhibitor. The transport of Ca
2+
ions through the membrane to the extracellular medium is blocked and the intercellular waves disappear. The translation of microalgae cooperative signaling paves the way for early detection and prevention of harmful blooms and an extensive range of stress-induced alterations in the aquatic ecosystem.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>29615779</pmid><doi>10.1038/s41598-018-23928-9</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-6956-1146</orcidid><orcidid>https://orcid.org/0000-0002-9622-3895</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | 631/1647/1453/2205 639/166/987 9/10 9/30 96 96/10 96/95 Algae Aquatic ecosystems Aquatic microorganisms Biogeochemical cycles Calcium transport Humanities and Social Sciences Ions Microalgae multidisciplinary Oscillations Paracrine signalling Science Science (multidisciplinary) Silica |
| title | Collective electrical oscillations of a diatom population induced by dark stress |
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