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ISME J

Title:		Decision-making of the benthic diatom Seminavis robusta searching for inorganic nutrients and pheromones
Author(s):		Bondoc KGV; Lembke C; Lang SN; Germerodt S; Schuster S; Vyverman W; Pohnert G;
Address:		"Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universitat Jena, Lessingstrasse 8, D-07743, Jena, Germany. karen.bondoc@gmail.com. Max Planck Institute for Chemical Ecology, Hans-Knoll-Str. 8, D-07745, Jena, Germany. karen.bondoc@gmail.com. Department of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, 08901-8521, USA. karen.bondoc@gmail.com. Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universitat Jena, Lessingstrasse 8, D-07743, Jena, Germany. Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Alte Fischerhutte 2, D-16775, Stechlin, Germany. Department of Bioinformatics, Friedrich-Schiller-Universitat Jena, Ernst-Abbe-Platz 2, D-07743, Jena, Germany. Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Gent, Krijgslaan 281 S8, 9000, Gent, Belgium. Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universitat Jena, Lessingstrasse 8, D-07743, Jena, Germany. Georg.Pohnert@uni-jena.de. Max Planck Institute for Chemical Ecology, Hans-Knoll-Str. 8, D-07745, Jena, Germany. Georg.Pohnert@uni-jena.de"
Journal Title:		ISME J
Year:		2019
Volume:		20181009
Issue:		2
Page Number:		537 - 546
DOI:		10.1038/s41396-018-0299-2
ISSN/ISBN:		1751-7370 (Electronic) 1751-7362 (Print) 1751-7362 (Linking)
Abstract:		"Microorganisms encounter a diversity of chemical stimuli that trigger individual responses and influence population dynamics. However, microbial behavior under the influence of different incentives and microbial decision-making is poorly understood. Benthic marine diatoms that react to sexual attractants as well as to nutrient gradients face such multiple constraints. Here, we document and model behavioral complexity and context-sensitive responses of these motile unicellular algae to sex pheromones and the nutrient silicate. Throughout the life cycle of the model diatom Seminavis robusta nutrient-starved cells localize sources of silicate by combined chemokinetic and chemotactic motility. However, with an increasing need for sex to restore the initial cell size, a change in behavior favoring the attraction-pheromone-guided search for a mating partner takes place. When sex becomes inevitable to prevent cell death, safeguard mechanisms are abandoned, and cells prioritize the search for mating partners. Such selection processes help to explain biofilm organization and to understand species interactions in complex communities"
Keywords:		"Biofilms *Chemotaxis Diatoms/*physiology *Models, Biological;"
Notes:		"MedlineBondoc, Karen Grace V Lembke, Christine Lang, Stefan N Germerodt, Sebastian Schuster, Stefan Vyverman, Wim Pohnert, Georg eng Research Support, Non-U.S. Gov't England 2018/10/12 ISME J. 2019 Feb; 13(2):537-546. doi: 10.1038/s41396-018-0299-2. Epub 2018 Oct 9"