Effects of temperature, light and salinity on cyst production and morphology of Tuberculodinium vancampoae (the resting cyst of Pyrophacus steinii)

Zonneveld, Karin A F; Susek, Ewa

doi:10.1016/j.revpalbo.2006.09.001

Cited by 26 publications

(10 citation statements)

References 33 publications

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“…However, this suggestion is limited by the fact that species from different genera, environmental conditions (surface waters and post-depositional) and regions have primarily been compared (e.g., Bogus et al 2014). These other factors seemingly influence the dinosporin composition (e.g., Bogus et al 2014;Mertens et al 2015aMertens et al , 2015bMertens et al , 2017, a finding consistent with the fact that dinoflagellate cyst morphology as well can vary with differing environmental conditions (e.g., Ellegaard 2000;Lewis et al 2001;Ellegaard et al 2002;Zonneveld and Susek 2007;Mertens et al 2009).…”

Section: Introductionmentioning

confidence: 95%

Taxonomic Re-Investigation and Geochemical Characterization of Reid’s (1974) Species ofSpiniferitesfrom Holotype and Topotype Material

et al. 2018

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The genus Spiniferites currently encompasses 142 dinoflagellate cyst species. Some Spiniferites species are difficult to identify because of an incomplete or doubtful description, and/or substandard iconography. This study re-describes and re-illustrates the Spiniferites holotypes first described by Reid in 1974. It also discusses topotype material from surface sediments recovered from British estuaries, and attempts to provide further constraints on the classification of species in this genus using the geochemical characterization of their cyst walls. Reid described four new Spiniferites species: Spiniferites belerius, Spiniferites delicatus, Spiniferites elongatus and Spiniferites lazus. New photomicrographs are presented here for the holotypes of Spiniferites delicatus and Spiniferites elongatus, and additional morphological observations based on newly processed topotype material are given. The geochemical characterization of the Spiniferites cyst walls showed overall consistency with a carbohydrate-based dinosporin. However, variability in the dinosporins suggests that, in this genus, the cyst wall composition may be species-specific. Analysis of the characteristic spectral regions for unclassified Spiniferites species showed that, in some cases, it may be possible to constrain the likely species affinity using the cyst wall chemistry. However, in most cases, the morphologically unspeciated cysts did not show sufficient similarity to an identified species' cyst wall chemistry to be more conclusive. This could either reflect an intermediate species that cannot be clearly characterized using morphology or dinosporin composition, or it represents a completely different species. In either case, both the morphological and geochemical evaluations highlight the difficulties in classifying species of this genus unequivocally.

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Section: Introductionmentioning

confidence: 95%

Taxonomic Re-Investigation and Geochemical Characterization of Reid’s (1974) Species ofSpiniferitesfrom Holotype and Topotype Material

et al. 2018

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“…For the resting cysts of L. polyedrum and Protoceratium reticulatum , this relationship between environmental conditions and morphology was suggested as a very useful proxy for salinity in paleoclimate studies [ 46 , 63 ]. A strong correlation between cyst-process length and salinity has also been described for the cysts of Gonyaulax baltica [ 64 ], but not for those of Pyrophacus steinii [ 65 ]. However, cysts of both these species as well as those of P. steinii were shown to undergo morphological variations in response to changing temperatures [ 64 , 65 , 66 ].…”

Section: Structural Features Of Dinoflagellate Cystsmentioning

confidence: 99%

Towards an Ecological Understanding of Dinoflagellate Cyst Functions

2014

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The life cycle of many dinoflagellates includes at least one nonflagellated benthic stage (cyst). In the literature, the different types of dinoflagellate cysts are mainly defined based on morphological (number and type of layers in the cell wall) and functional (long- or short-term endurance) differences. These characteristics were initially thought to clearly distinguish pellicle (thin-walled) cysts from resting (double-walled) dinoflagellate cysts. The former were considered short-term (temporal) and the latter long-term (resting) cysts. However, during the last two decades further knowledge has highlighted the great intricacy of dinoflagellate life histories, the ecological significance of cyst stages, and the need to clarify the functional and morphological complexities of the different cyst types. Here we review and, when necessary, redefine the concepts of resting and pellicle cysts, examining both their structural and their functional characteristics in the context of the life cycle strategies of several dinoflagellate species.

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“…, Ellegaard et al. , Zonneveld and Susek , Mertens et al. ) as well as evidence that some dinoflagellates, such as Karlodinium veneficum (Ballantine) Larsen and Alexandrium minutum Halim (Fuentes‐Grünewald et al.…”

mentioning

confidence: 99%

Differences in the chemical composition of organic‐walled dinoflagellate resting cysts from phototrophic and heterotrophic dinoflagellates

Bogus

Mertens

Lauwaert

et al. 2014

Journal of Phycology

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32Dinoflagellates constitute a large proportion of the planktonic biomass from marine to 33 freshwater environments. Some species produce a preservable organic-walled resting cyst 34 (dinocyst) during the sexual phase of their life cycle that is an important link between the 35 organisms, the environment in which their parent motile theca grew, and the sedimentary 36 record. Despite their abundance and widespread usage as proxy indicators for environmental 37 conditions, there is a lack of knowledge regarding the dinocyst wall chemical composition. It 38 is likely that numerous factors, including phylogeny and life strategy, determine the cyst wall 39 chemistry. However, the extent to which this composition varies based on inherent 40 (phylogenetic) or variable (ecological) factors has not been studied.

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Effects of temperature, light and salinity on cyst production and morphology of Tuberculodinium vancampoae (the resting cyst of Pyrophacus steinii)

Cited by 26 publications

References 33 publications

Taxonomic Re-Investigation and Geochemical Characterization of Reid’s (1974) Species ofSpiniferitesfrom Holotype and Topotype Material

Taxonomic Re-Investigation and Geochemical Characterization of Reid’s (1974) Species ofSpiniferitesfrom Holotype and Topotype Material

Towards an Ecological Understanding of Dinoflagellate Cyst Functions

Differences in the chemical composition of organic‐walled dinoflagellate resting cysts from phototrophic and heterotrophic dinoflagellates

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