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Abstract:

Steering their swimming direction toward the light is crucial for the viability of Volvox colonies, the larger members of the volvocine algae. While it is known that this phototactic steering is achieved by a difference in behavior of the flagella on the illuminated and shaded sides, conflicting reports suggest that this asymmetry arises either from a change in beating direction or a change in beating frequency. Here, we report direct observations of the flagellar behavior of various Volvox species with different phyletic origin in response to light intensity changes and thereby resolve this controversy: Volvox barberi W. Shaw from the section Volvox sensu Nozaki (2003) changes the direction of the flagellar beating plane, while species encompassed in the group Eudorina (Volvox carteri F. Stein, Volvox aureus Ehrenb., and Volvox tertius Art. Mey.) decrease the flagellar beating frequency, sometimes down to flagellar arrest. © 2011 Phycological Society of America.

Registro:

Documento: Artículo
Título:The flagellar photoresponse in Volvox species (Volvocaceae, Chlorophyceae)
Autor:Solari, C.A.; Drescher, K.; Goldstein, R.E.
Filiación:CONICET, Departamento de Biodiversidad y Biología Experimental (FCEyN), Laboratorio de Biología Comparada de Protistas, Universidad de Buenos Aires, Buenos Aires C1428EHA, Argentina
Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 0WA, United Kingdom
Palabras clave:Motility; Multicellularity; Phototactic response; Turning behavior; Volvocales; Volvox barberi; algae; Chlamydomonadales; Chlorophyceae; Eudorina; Volvocaceae; Volvox; Volvox aureus; Volvox barberi; Volvox carteri; Volvox tertius
Año:2011
Volumen:47
Número:3
Página de inicio:580
Página de fin:583
DOI: http://dx.doi.org/10.1111/j.1529-8817.2011.00983.x
Título revista:Journal of Phycology
Título revista abreviado:J. Phycol.
ISSN:00223646
CODEN:JPYLA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223646_v47_n3_p580_Solari

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Citas:

---------- APA ----------
Solari, C.A., Drescher, K. & Goldstein, R.E. (2011) . The flagellar photoresponse in Volvox species (Volvocaceae, Chlorophyceae). Journal of Phycology, 47(3), 580-583.
http://dx.doi.org/10.1111/j.1529-8817.2011.00983.x
---------- CHICAGO ----------
Solari, C.A., Drescher, K., Goldstein, R.E. "The flagellar photoresponse in Volvox species (Volvocaceae, Chlorophyceae)" . Journal of Phycology 47, no. 3 (2011) : 580-583.
http://dx.doi.org/10.1111/j.1529-8817.2011.00983.x
---------- MLA ----------
Solari, C.A., Drescher, K., Goldstein, R.E. "The flagellar photoresponse in Volvox species (Volvocaceae, Chlorophyceae)" . Journal of Phycology, vol. 47, no. 3, 2011, pp. 580-583.
http://dx.doi.org/10.1111/j.1529-8817.2011.00983.x
---------- VANCOUVER ----------
Solari, C.A., Drescher, K., Goldstein, R.E. The flagellar photoresponse in Volvox species (Volvocaceae, Chlorophyceae). J. Phycol. 2011;47(3):580-583.
http://dx.doi.org/10.1111/j.1529-8817.2011.00983.x