The University of Southampton
University of Southampton Institutional Repository

The Gonyaulax spinifera (Dinophyceae) “complex”: Perpetuating the paradox?

Rochon, André, Lewis, Jane, Ellegaard, Marianne and Harding, Ian C. (2009) The Gonyaulax spinifera (Dinophyceae) “complex”: Perpetuating the paradox? Review of Palaeobotany and Palynology, 155, (1-2), pp. 52-60. (doi:10.1016/j.revpalbo.2008.12.017).

Record type: Article

Abstract

Specimens of dinoflagellate cysts referable to the cyst-species Spiniferites ramosus (Ehrenberg 1838) Mantell 1854 and Nematosphaeropsis labyrinthus (Ostenfeld 1903) Reid 1974 have been produced in the same crossed-strain of Gonyaulax spinifera-type (Claparède and Lachmann 1857) Diesing 1866 motile cells during a routine encystment experiment. Detailed observations were made and are reported on the process of encystment, which follows a similar pattern to that already described for Lingulodinium polyedrum. Both cyst types displayed a wide range of morphological variations with respect to process length and/or trabecular development. The cysts morphology vary between “typical” S. ramosus specimens with well developed trifurcate processes with bifurcated distal ends, to specimens with abnormally developed or incomplete processes, specimens with partially developed trabecular network, to typical N. labyrinthus specimens with a complete network of trabecula joining the distal ends of the processes. The cysts were produced in salinities of 25 and 30 psu at 12 °C. Experiments in other salinities (15, 20, 35 and 40 psu) only produced cysts of S. ramosus-type. We suggest that the particular salinity conditions (25 and 30 psu) used in our experience probably triggered the expression of a particular phenotype.

Full text not available from this repository.

More information

Published date: May 2009
Keywords: culture, cyst, cyst-theca relationship, dinoflagellate, excystment, gene expression, Gonyaulax spinifera, motile, Nematosphaeropsis labyrinthus, Spiniferites ramosus

Identifiers

Local EPrints ID: 66153
URI: http://eprints.soton.ac.uk/id/eprint/66153
ISSN: 0034-6667
PURE UUID: 3c67e2d9-8216-4461-8568-1a8636f319c7

Catalogue record

Date deposited: 05 May 2009
Last modified: 19 Jul 2017 00:27

Export record

Altmetrics

Contributors

Author: André Rochon
Author: Jane Lewis
Author: Marianne Ellegaard
Author: Ian C. Harding

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×