Scrippsiella irregularis sp. nov. (Dinophyceae), a new dinoflagellate from the southeast coast of Iran

Attaran-Fariman, Gilan; Bolch, Christopher J. S.

doi:10.2216/07-02.1

Cited by 15 publications

(12 citation statements)

References 25 publications

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“…The minor differences among the sequences of S. irregularis from China and Iran, and S. precaria from China and Australia suggest possible relationship with geographic distance. Scrippsiella irregularis, S. precaria, and S. ramonii differ from other Scrippsiella species in the organic cyst body, a small 2a plate and connection of 1a and 3a plates in the motile cells (Montresor & Zingone, 1988;Montresor, 1995;Attaran-Fariman & Bolch, 2007). It seems that differences in both cyst and theca of these three species separate them from other Scrippsiella species in the phylogeny.…”

Section: Discussionmentioning

confidence: 88%

“…Scrippsiella irregularis is a newly described species whose cyst morphology is identical to that of S. precaria , but differs slightly in the size of 2a plate and the shape of the hypotheca (Attaran‐Fariman & Bolch, 2007). Scrippsiella precaria has been reported previously in the East China Sea (Qi et al, 1996; Gu et al, 2008), however, our results suggest that the species should be S. irregularis .…”

Section: Discussionmentioning

confidence: 99%

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Diversity, distribution, and new phylogenetic information of calcareous dinoflagellates from the China Sea

Luo

Yan

et al. 2011

J of Sytematics Evolution

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Calcareous dinoflagellates have been recorded from subarctic to tropical areas, inhabiting both neritic and oceanic regions. In the present study we analyse 12 sediment samples from the China Sea to establish the existence of calcareous dinoflagellates in this area. A total of 11 calcareous dinoflagellate species were recorded, among them, three genera (Calciodinellum, Leonella, Posoniella) and seven species (Calciodinellum albatrosianum, C. levantinum, C. operosum, Leonella granifera, Posoniella tricarinelloides, Scrippsiella irregularis, and S. regalis) were reported from the China Sea for the first time. Cysts of S. irregularis and S. precaria are identical, with a mesoepicystal archeopyle, representing the loss of 2–4′ and 1–3a paraplates; however, their thecal plates vary slightly and differ from each other in 78 positions of the internal transcribed spacer sequence. Scrippsiella trochoidea is dominant in coastal areas, whereas Calciodinellum albatrosianum is the most abundant offshore. Scrippsiella irregularis is distributed widely along the coast of China, whereas S. precaria is recorded only in northern China. Leonella granifera is the second most abundant species offshore, comprising 15–40% of the cyst assemblage.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Diversity, distribution, and new phylogenetic information of calcareous dinoflagellates from the China Sea

Luo

Yan

et al. 2011

J of Sytematics Evolution

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“…To date, approximately 30 extant species were described under this genus (e.g. Indelicato & Loeblich III, 1985;Montresor & Zingone, 1988;Lewis, 1991;Larsen et al, 1995;Montresor, 1995;Attaran-Fariman & Bolch, 2007;Gu et al, 2008Gu et al, , 2013Zinssmeister et al, 2012). Scrippsiella species are predominantly marine and free living (Elbrächter et al, 2008), although the problematic taxon S. saladensis Balech inhabits exclusively brackish waters (Balech, 1963).…”

Section: Introductionmentioning

confidence: 99%

Cyst-theca relationship and phylogenetic positions ofScrippsiella planasp. nov. andS. spinifera(Peridiniales, Dinophyceae)

Luo¹,

Mertens

Bagheri

et al. 2016

European Journal of Phycology

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Species belonging to the dinophyte genus Scrippsiella are frequently reported in marine waters, but information on their distribution in brackish environments is limited. Here we describe a new species, S. plana, through incubation of non-calcified cysts from sediments collected in the South China Sea and Caspian Sea. The vegetative cells consist of a conical epitheca and a rounded hypotheca with the plate formula of Po, X, 4′, 3a, 7′′, 5C+t, 5S, 5′′′, 2′′′′. It differs from other Scrippsiella species by its flattened body in dorsoventral view and a small first anterior intercalary (1a) plate (half the size of plate 3a). Scrippsiella plana strains from the South China Sea and Caspian Sea share identical internal transcribed spacer (ITS) sequences, and show phenotypic plasticity and local adaptation in growth rate at various salinities, consistent with the environments in which they originated. In addition, two strains of S. spinifera were obtained by incubating ellipsoid cysts with calcareous spines from sediments collected along the Turkish and Hawaiian coast. They also share identical ITS sequences and differ from Duboscquodinium collinii (a parasite of tintinnids) only at two base pair positions (in the ITS2 region). Molecular phylogeny based on ITS and large subunit ribosomal DNA (LSU rDNA) sequences revealed that S. plana was nested within the Calciodinellum (CAL) clade and S. spinifera within the S. trochoidea (STR) clade. The phylogenetic position of 'Peridinium' wisconsinense is reported for the first time, which supports multiple transitions of the Peridiniales to freshwater.

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“…Since the establishment of the genus Scrippsiella by Balech (), ~30 species of the genus have been reported (Montresor and Zingone , Janofske , Attaran‐Fariman and Bolch , Gu et al. , , Kretschmann et al.…”

mentioning

confidence: 99%

“…Since the establishment of the genus Scrippsiella by Balech (1959),~30 species of the genus have been reported (Montresor and Zingone 1988, Janofske 2000, Attaran-Fariman and Bolch 2007, Gu et al 2008, Kretschmann et al 2014, Luo et al 2016. Scrippsiella acuminata has caused red tides in the waters of many countries including Korea, China, United States, Australia, Iraq, Algeria, Oman, Spain, Turkey, and Mexico (Hallegraeff 1992, Villarino et al 1995, Frehi et al 2007, Wang et al 2008, G arate-Liz arraga et al 2009, Marshall 2009, Park et al 2013a, Al-Azri et al 2015, Hameed and Saburova 2015, Tas and Yilmaz 2015.…”

mentioning

confidence: 99%

Differential feeding by common heterotrophic protists on four Scrippsiella species of similar size

Kim

Jeong

Kang

et al. 2019

Journal of Phycology

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The dinoflagellate genus Scrippsiella is known to cause red tides. Mortality due to predation should be assessed in order to understand the population dynamics of Scrippsiella species. However, predation has been explored only in a few species. In this study, we examined feeding by common heterotrophic dinoflagellates Oxyrrhis marina, Gyrodinium dominans, Polykrikos kofoidii, Oblea rotunda, and Pfiesteria piscicida, and a ciliate Strombidinopsis sp., on four Scrippsiella species, of similar size, namely Scrippsiella acuminata, Scrippsiella donghaiensis, Scrippsiella lachrymosa, and Scrippsiella masanensis. All the heterotrophic protists tested could feed on all the four Scrippsiella species. However, the numerical and functional responses of P. kofoidii to the mean prey concentration were apparently different between the Scrippsiella species. With increasing prey concentration, the growth and ingestion rates of P. kofoidii on S. lachrymosa increased rapidly, and then saturated similar to those on S. acuminata, as previously reported, but those on S. donghaiensis continuously decreased. The cells of S. donghaiensis lysed P. kofoidii cells. In contrast, the growth and ingestion rates of P. kofoidii on S. masanensis were not significantly related to the prey concentration. At similarly high mean prey concentration, the growth and ingestion rates of G. dominans were significantly different between the four Scrippsiella species Therefore, differences in the growth and/or ingestion rates of G. dominans and P. kofoidii on the four Scrippsiella species might result in different ecological niches of both the predator and prey species.

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Scrippsiella irregularis sp. nov. (Dinophyceae), a new dinoflagellate from the southeast coast of Iran

Cited by 15 publications

References 25 publications

Diversity, distribution, and new phylogenetic information of calcareous dinoflagellates from the China Sea

Diversity, distribution, and new phylogenetic information of calcareous dinoflagellates from the China Sea

Cyst-theca relationship and phylogenetic positions ofScrippsiella planasp. nov. andS. spinifera(Peridiniales, Dinophyceae)

Differential feeding by common heterotrophic protists on four Scrippsiella species of similar size

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