Cnidarian-Symbiodiniaceae symbiosis establishment is independent of photosynthesis.

Autor:	Jinkerson RE; Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA 92521, USA; Center for Plant Cell Biology, Department of Botany and Plant Sciences, University of California, Riverside, Riverside, CA 92521, USA; Carnegie Institution for Science, Department of Plant Biology, Stanford, CA 94305, USA. Electronic address: robert.jinkerson@ucr.edu., Russo JA; Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA 92521, USA; Department of Microbiology, University of California, Riverside, Riverside, CA 92521, USA., Newkirk CR; Department of Biological Sciences, University of North Carolina, Charlotte, NC 28223, USA; Whitney Laboratory for Marine Bioscience, University of Florida, St. Augustine, FL 32080, USA., Kirk AL; Department of Biological Sciences, University of North Carolina, Charlotte, NC 28223, USA., Chi RJ; Department of Biological Sciences, University of North Carolina, Charlotte, NC 28223, USA., Martindale MQ; Whitney Laboratory for Marine Bioscience, University of Florida, St. Augustine, FL 32080, USA., Grossman AR; Carnegie Institution for Science, Department of Plant Biology, Stanford, CA 94305, USA., Hatta M; Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan., Xiang T; Department of Biological Sciences, University of North Carolina, Charlotte, NC 28223, USA. Electronic address: txiang@uncc.edu.
Jazyk:	angličtina
Zdroj:	Current biology : CB [Curr Biol] 2022 Jun 06; Vol. 32 (11), pp. 2402-2415.e4. Date of Electronic Publication: 2022 May 02.
DOI:	10.1016/j.cub.2022.04.021
Abstrakt:	Photosynthesis shapes the symbiotic relationships between cnidarians and Symbiodiniaceae algae-with many cnidarian hosts requiring symbiont photosynthate for survival-but little is known about how photosynthesis impacts symbiosis establishment. Here, we show that during symbiosis establishment, infection, proliferation, and maintenance can proceed without photosynthesis, but the ability to do so is dependent on specific cnidarian-Symbiodiniaceae relationships. The evaluation of 31 pairs of symbiotic relationships (five species of Symbiodiniaceae in sea anemone, coral, and jellyfish hosts) revealed that infection can occur without photosynthesis. A UV mutagenesis method for Symbiodiniaceae was established and used to generate six photosynthetic mutants that can infect these hosts. Without photosynthesis, Symbiodiniaceae cannot proliferate in the sea anemone Aiptasia or jellyfish Cassiopea but can proliferate in the juvenile polyps of the coral Acropora. After 6 months of darkness, Breviolum minutum is maintained within Aiptasia, indicating that Symbiodiniaceae maintenance can be independent of photosynthesis. Manipulating photosynthesis provides insights into cnidarian-Symbiodiniaceae symbiosis. Competing Interests: Declaration of interests The authors declare no competing interests. (Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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