A Rhodopsin-like Protein in the Plasma Membrane of Silvetia compressa Eggs¶

Paolo Gualtieri; Kenneth R. Robinson

doi:10.1562/0031-8655(2002)075<0076:ARLPIT>2.0.CO;2

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Paolo Gualtieri,^1,* Kenneth R. Robinson²

¹aIstituto di Biofisica, CNR Area della Ricerca, Pisa, Italy
²bDepartment of Biological Sciences, Purdue University, West Lafayette, IN

^**To whom correspondence should be addressed at: Istituto di Biofisica, CNR Area della Ricerca via Moruzzi 1, 56124 Pisa, Italy. Fax: 39-50-3152760; paolo.gualtieri@ib.pi.cnr.it

Abstract

Unidirectional blue light directs the rhizoid–thallus axis in the apolar zygote of the brown alga, Silvetia compressa. This effect is mediated by an increase in the intracellular concentration of guanosine 3′, 5′-cyclic monophosphate. In this study we show the identification of a rhodopsin-like protein, by means of antibody reaction, in the plasma membrane of Silvetia eggs. This new result suggests a role for opsins in Silvetia photopolarity.

Citation Download Citation

Paolo Gualtieri and Kenneth R. Robinson "A Rhodopsin-like Protein in the Plasma Membrane of Silvetia compressa Eggs," Photochemistry and Photobiology 75(1), 76-78, (1 January 2002). https://doi.org/10.1562/0031-8655(2002)075<0076:ARLPIT>2.0.CO;2

Received: 4 September 2001; Accepted: 1 October 2001; Published: 1 January 2002

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