Missing autofluorescence of recent and fossil dinoflagellate cysts - an indicator of heterotrophy?.

Brenner, Wolfram and Biebow, Nicole (2001) Missing autofluorescence of recent and fossil dinoflagellate cysts - an indicator of heterotrophy?. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 219 . pp. 229-240.

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Abstract

Epifluorescence investigations of recent and fossil dinoflagellate cysts
assemblages show that several groups of cysts have no autofluorescence in neither
the recent and the fossil record. Additional micro-absorption photometric investigations
nor the different chemical behaviour confirm the assumption that the nonautofluorescing
cysts differ in biomacromolecular composition from the sporopollenin/
dinosporin of the autofluorescing cysts. No chemical similarity to the material
of other non-autofluorescing or partly non-autofluorescing fossil organic-walled
microfossils such as microforaminiferal linings, scolecodonts or fungal spores
could be found. Based on the investigated Recent material and the known correlation
of cysts and vegetative stage of dinoflagellates, the non-autofluorescing cysts
seem to be associated with heterotrophic dinoflagellates. The possibly general heterotrophic
nature of fossil non-fluorescing dinoflagellate cysts is discussed.

Document Type: Article
Keywords: missing autofluorescence, dinoflagellate cysts
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Refereed: Yes
Open Access Journal?: No
ISSN: 0077-7749
Date Deposited: 28 Jan 2016 14:23
Last Modified: 06 Mar 2019 12:17
URI: http://oceanrep.geomar.de/id/eprint/31222

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