Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number

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Flagella-generated fluid stirring has been suggested to enhance nutrient uptake for sufficiently large micro-organisms, and to have played a role in evolutionary transitions to multicellularity. A corollary to this predicted size-dependent benefit is a propensity for phenotypic plasticity in the flo...

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Autores principales:	Solari, C.A., Drescher, K., Ganguly, S., Kessler, J.O., Michod, R.E., Goldstein, R.E.
Formato:	Artículo publishedVersion
Publicado:	2011
Materias:	Evolution Flagella Fluid dynamics Nutrient uptake Phenotypic plasticity Volvox Algae Cells Fluids Nutrients Mutagenesis alga algal growth article cell size Chlamydomonas reinhardtii colony formation extracellular matrix flagellum fluid flow Gonium pectorale mathematical computing multiple linear regression analysis nonhuman nutrient concentration nutrient limitation nutrient uptake Peclet number phenotypic plasticity plant life cycle stage sedimentation somatic cell spheroid cell swimming velocity volvocalean alga Volvox barberi volvox carteri algae Chlamydomonadales Volvox carteri
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17425689_v8_n63_p1409_Solari http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17425689_v8_n63_p1409_Solari_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-paper_17425689_v8_n63_p1409_Solari_oai
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spelling	I28-R145-paper_17425689_v8_n63_p1409_Solari_oai2020-10-19 Solari, C.A. Drescher, K. Ganguly, S. Kessler, J.O. Michod, R.E. Goldstein, R.E. 2011 Flagella-generated fluid stirring has been suggested to enhance nutrient uptake for sufficiently large micro-organisms, and to have played a role in evolutionary transitions to multicellularity. A corollary to this predicted size-dependent benefit is a propensity for phenotypic plasticity in the flow-generating mechanism to appear in large species under nutrient deprivation. We examined four species of volvocalean algae whose radii and flow speeds differ greatly, with Péclet numbers (Pe) separated by several orders of magnitude. Populations of unicellular Chlamydomonas reinhardtii and one- to eight-celled Gonium pectorale (Pe ∼ 0.1-1) and multicellular Volvox carteri and Volvox barberi (Pe ∼ 100) were grown in diluted and undiluted media. For C. reinhardtii and G. pectorale, decreasing the nutrient concentration resulted in smaller cells, but had no effect on flagellar length and propulsion force. In contrast, these conditions induced Volvox colonies to grow larger and increase their flagellar length, separating the somatic cells further. Detailed studies on V. carteri found that the opposing effects of increasing beating force and flagellar spacing balance, so the fluid speed across the colony surface remains unchanged between nutrient conditions. These results lend further support to the hypothesized link between the Péclet number, nutrient uptake and the evolution of biological complexity in the Volvocales. © 2011 The Royal Society. application/pdf http://hdl.handle.net/20.500.12110/paper_17425689_v8_n63_p1409_Solari info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar J. R. Soc. Interface 2011;8(63):1409-1417 Evolution Flagella Fluid dynamics Nutrient uptake Phenotypic plasticity Volvox Algae Cells Fluids Nutrients Evolution Flagella Nutrient uptake Phenotypic plasticity Volvox Mutagenesis alga algal growth article cell size Chlamydomonas reinhardtii colony formation extracellular matrix flagellum fluid flow Gonium pectorale mathematical computing multiple linear regression analysis nonhuman nutrient concentration nutrient limitation nutrient uptake Peclet number phenotypic plasticity plant life cycle stage sedimentation somatic cell spheroid cell swimming velocity volvocalean alga Volvox Volvox barberi volvox carteri algae Chlamydomonadales Chlamydomonas reinhardtii Gonium pectorale Volvox Volvox barberi Volvox carteri Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17425689_v8_n63_p1409_Solari_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic	Evolution Flagella Fluid dynamics Nutrient uptake Phenotypic plasticity Volvox Algae Cells Fluids Nutrients Evolution Flagella Nutrient uptake Phenotypic plasticity Volvox Mutagenesis alga algal growth article cell size Chlamydomonas reinhardtii colony formation extracellular matrix flagellum fluid flow Gonium pectorale mathematical computing multiple linear regression analysis nonhuman nutrient concentration nutrient limitation nutrient uptake Peclet number phenotypic plasticity plant life cycle stage sedimentation somatic cell spheroid cell swimming velocity volvocalean alga Volvox Volvox barberi volvox carteri algae Chlamydomonadales Chlamydomonas reinhardtii Gonium pectorale Volvox Volvox barberi Volvox carteri
spellingShingle	Evolution Flagella Fluid dynamics Nutrient uptake Phenotypic plasticity Volvox Algae Cells Fluids Nutrients Evolution Flagella Nutrient uptake Phenotypic plasticity Volvox Mutagenesis alga algal growth article cell size Chlamydomonas reinhardtii colony formation extracellular matrix flagellum fluid flow Gonium pectorale mathematical computing multiple linear regression analysis nonhuman nutrient concentration nutrient limitation nutrient uptake Peclet number phenotypic plasticity plant life cycle stage sedimentation somatic cell spheroid cell swimming velocity volvocalean alga Volvox Volvox barberi volvox carteri algae Chlamydomonadales Chlamydomonas reinhardtii Gonium pectorale Volvox Volvox barberi Volvox carteri Solari, C.A. Drescher, K. Ganguly, S. Kessler, J.O. Michod, R.E. Goldstein, R.E. Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number
topic_facet	Evolution Flagella Fluid dynamics Nutrient uptake Phenotypic plasticity Volvox Algae Cells Fluids Nutrients Evolution Flagella Nutrient uptake Phenotypic plasticity Volvox Mutagenesis alga algal growth article cell size Chlamydomonas reinhardtii colony formation extracellular matrix flagellum fluid flow Gonium pectorale mathematical computing multiple linear regression analysis nonhuman nutrient concentration nutrient limitation nutrient uptake Peclet number phenotypic plasticity plant life cycle stage sedimentation somatic cell spheroid cell swimming velocity volvocalean alga Volvox Volvox barberi volvox carteri algae Chlamydomonadales Chlamydomonas reinhardtii Gonium pectorale Volvox Volvox barberi Volvox carteri
description	Flagella-generated fluid stirring has been suggested to enhance nutrient uptake for sufficiently large micro-organisms, and to have played a role in evolutionary transitions to multicellularity. A corollary to this predicted size-dependent benefit is a propensity for phenotypic plasticity in the flow-generating mechanism to appear in large species under nutrient deprivation. We examined four species of volvocalean algae whose radii and flow speeds differ greatly, with Péclet numbers (Pe) separated by several orders of magnitude. Populations of unicellular Chlamydomonas reinhardtii and one- to eight-celled Gonium pectorale (Pe ∼ 0.1-1) and multicellular Volvox carteri and Volvox barberi (Pe ∼ 100) were grown in diluted and undiluted media. For C. reinhardtii and G. pectorale, decreasing the nutrient concentration resulted in smaller cells, but had no effect on flagellar length and propulsion force. In contrast, these conditions induced Volvox colonies to grow larger and increase their flagellar length, separating the somatic cells further. Detailed studies on V. carteri found that the opposing effects of increasing beating force and flagellar spacing balance, so the fluid speed across the colony surface remains unchanged between nutrient conditions. These results lend further support to the hypothesized link between the Péclet number, nutrient uptake and the evolution of biological complexity in the Volvocales. © 2011 The Royal Society.
format	Artículo Artículo publishedVersion
author	Solari, C.A. Drescher, K. Ganguly, S. Kessler, J.O. Michod, R.E. Goldstein, R.E.
author_facet	Solari, C.A. Drescher, K. Ganguly, S. Kessler, J.O. Michod, R.E. Goldstein, R.E.
author_sort	Solari, C.A.
title	Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number
title_short	Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number
title_full	Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number
title_fullStr	Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number
title_full_unstemmed	Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number
title_sort	flagellar phenotypic plasticity in volvocalean algae correlates with péclet number
publishDate	2011
url	http://hdl.handle.net/20.500.12110/paper_17425689_v8_n63_p1409_Solari http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17425689_v8_n63_p1409_Solari_oai
work_keys_str_mv	AT solarica flagellarphenotypicplasticityinvolvocaleanalgaecorrelateswithpecletnumber AT drescherk flagellarphenotypicplasticityinvolvocaleanalgaecorrelateswithpecletnumber AT gangulys flagellarphenotypicplasticityinvolvocaleanalgaecorrelateswithpecletnumber AT kesslerjo flagellarphenotypicplasticityinvolvocaleanalgaecorrelateswithpecletnumber AT michodre flagellarphenotypicplasticityinvolvocaleanalgaecorrelateswithpecletnumber AT goldsteinre flagellarphenotypicplasticityinvolvocaleanalgaecorrelateswithpecletnumber
_version_	1766026791011483648

Flagellar phenotypic plasticity in volvocalean algae correlates with Péclet number

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