Studies on woloszynskioid dinoflagellates VIII: life cycle, resting cyst morphology and phylogeny of<i>Tovellia rinoi sp. nov</i>. (Dinophyceae)

Pandeirada, Mariana S.; Craveiro, Sandra C.; Daugbjerg, Niels; Moestrup, Øjvind; Calado, António J.

doi:10.2216/17-5.1

Cited by 12 publications

(21 citation statements)

References 47 publications

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“…(); a further species, T. rinoi , was described after the publication of these articles (Pandeirada et al. ). Tovellia rubescens n. sp.…”

Section: Discussionmentioning

confidence: 99%

“…The thermal profile can be found in Pandeirada et al. (). The PCR products were purified using the QIAquick PCR Purification Kit (Qiagen), following the manufacturer's recommendations, and sent to Macrogen Europe (Amsterdam, The Netherlands) for sequence determination.…”

Section: Methodsmentioning

confidence: 99%

“…The new species is the third species of Tovellia to be reported from continental Portugal (Pandeirada et al. , , ).…”

mentioning

confidence: 90%

“…The genus Tovellia Moestrup, K. Lindberg and Daugbjerg currently includes about a dozen species that bear peridinin‐containing, yellowish‐green or brownish‐green chloroplasts (Pandeirada et al. ; Zhang et al. ).…”

mentioning

confidence: 99%

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Studies on Woloszynskioid Dinoflagellates X: Ultrastructure, Phylogeny and Colour Variation in Tovellia rubescens n. sp. (Dinophyceae)

Pandeirada

Craveiro

Daugbjerg

et al. 2019

J Eukaryotic Microbiology

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The external morphology and internal cell fine structure of a new species of Tovelliaceae, Tovellia rubescens n. sp., is described. Phylogenetic analyses based on partial LSU rDNA sequences place the new species in a clade containing Tovellia species that accumulate red pigments and identify T. aveirensis as its closest known relative. Cells of T. rubescens n. sp. were mostly round and had the cingulum located near the middle, with its ends displaced about one cingular width. Small numbers of distinctly flat cells appeared in culture batches; their significance could not be determined. Cells of the new species in culture batches progressively changed from a yellowish‐green, mainly due to chloroplast colour, to a reddish‐brown colour that appeared associated with lipid bodies. The switch to a reddish colour happened earlier in batches grown in medium lacking sources of N or P. Pigment analyses by HPLC‐MS/MS revealed the presence of astaxanthin and astaxanthin‐related metabolites in the new species, but also in T. aveirensis, in which a reddish colour was never observed. The chloroplast arrangement of T. rubescens n. sp. resembled that of T. aveirensis, with lobes radiating from a central pyrenoid complex. The flagellar apparatus and pusular system fell within the general features described from other Tovelliaceae. A row of microtubules interpretable as a microtubular strand of the peduncle was present. Spiny resting cysts with red contents and an ITS sequence identical to that of cultured material of the new species were found in the original locality.

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“…(); a further species, T. rinoi , was described after the publication of these articles (Pandeirada et al. ). Tovellia rubescens n. sp.…”

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The new species is the third species of Tovellia to be reported from continental Portugal (Pandeirada et al. , , ).…”

mentioning

confidence: 90%

mentioning

confidence: 99%

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Studies on Woloszynskioid Dinoflagellates X: Ultrastructure, Phylogeny and Colour Variation in Tovellia rubescens n. sp. (Dinophyceae)

Pandeirada

Craveiro

Daugbjerg

et al. 2019

J Eukaryotic Microbiology

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“…The latter option was supported by the detection of mobile zygotes (planozygotes), a life stage that either divides, but with a lower division rate than that of vegetative cells, or encysts (62,63). While this observed in S. acuminata strain (S3V), it was not entirely true for S. ramonii (VGO1053), in which a remnant 2C phase always >20% was present in all samples of the cell cycle analysis.…”

Section: Cell Cyclementioning

confidence: 99%

Scrippsiella acuminata versus Scrippsiella ramonii: A Physiological Comparison

Fagín

Bravo

Garrido³

et al. 2019

Cytometry Pt A

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Scrippsiella is a cosmopolitan dinoflagellate genus that is able to form Harmful Algal Blooms in coastal waters. The large physiological, morphological, and genetic variability that characterizes this genus suggest the existence of cryptic species. In this study, flow cytometric analyses were carried out to compare the cell cycle and life cycle of two Scrippsiella strains from two different species: Scrippsiella ramonii (VGO1053) and Scrippsiella acuminata (S3V). Both species were also investigated by internally transcribed spacer rDNA sequencing and high‐performance liquid chromatography‐based pigment analyses. The reddish‐brown color of S. acuminata and yellowish‐green hue of S. ramonii were consistent with the quantitative differences determined in their pigment profiles. Our results indicate that the cell cycle is light‐controlled and that it differs in the two species. S‐phase was detected during the light period in both, whereas the G2/M phase occurred during the light period in S. ramonii but under dark conditions in S. acuminata. The detection of 4C stages, mobile zygotes (planozygotes), and resting cysts in S. ramonii (nonclonal) provided convincing evidence of sexuality in this species. Sexual related processes were not found in the clonal S. acuminata strain, suggesting its heterothallic behavior (i.e., the need for outcrossing). The differences in the genome size of these species were examined as well. © 2019 The Authors. Cytometry Part A published by Wiley Periodicals, Inc. on behalf of International Society for Advancement of Cytometry.

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Fine-structural characterization and phylogeny of Sphaerodinium (Suessiales, Dinophyceae), with the description of an unusual type of freshwater dinoflagellate cyst

Pandeirada

Craveiro

Daugbjerg

et al. 2021

European Journal of Protistology

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Studies on woloszynskioid dinoflagellates VIII: life cycle, resting cyst morphology and phylogeny ofTovellia rinoi sp. nov. (Dinophyceae)

Cited by 12 publications

References 47 publications

Studies on Woloszynskioid Dinoflagellates X: Ultrastructure, Phylogeny and Colour Variation in Tovellia rubescens n. sp. (Dinophyceae)

Studies on Woloszynskioid Dinoflagellates X: Ultrastructure, Phylogeny and Colour Variation in Tovellia rubescens n. sp. (Dinophyceae)

Scrippsiella acuminata versus Scrippsiella ramonii: A Physiological Comparison

Fine-structural characterization and phylogeny of Sphaerodinium (Suessiales, Dinophyceae), with the description of an unusual type of freshwater dinoflagellate cyst

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