Some Revisions of the Family Gonyaulacaceae (Dinophyceae) Based on a Scanning Electron Microscope Study

Dodge, John D.

doi:10.1515/botm.1989.32.4.275

Cited by 96 publications

(93 citation statements)

References 19 publications

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“…Cell size was variable within all isolates but corresponded to size ranges reported in the literature (Dodge, 1989;Hansen et al, 1996/97). As exemplified for isolate PR3, there was some variability in the position of the intercalary Plate 1a theoretically causing different plate patterns within the population by having either three or four apical plates (i.e.…”

Section: Morphology and Phylogenysupporting

confidence: 76%

Growth and bioactive secondary metabolites of arctic Protoceratium reticulatum (Dinophyceae)

et al. 2016

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Section: Morphology and Phylogenysupporting

confidence: 76%

Growth and bioactive secondary metabolites of arctic Protoceratium reticulatum (Dinophyceae)

et al. 2016

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“…In another type (Figs 8, 9) the rows of pores are more or less straight and are often concentric with the edges of the girdle. No similar pattem has been reported from other dinoflagellares although a great variety of thecal ornamentation has been revealed by SEM work, particularly in the genera Protoperidinium (Dodge, 1983), Oxytoxum (Dodge & Saunders, 1985) and in the order Gonyaulacales (Dodge, 1989). In some cells, as shown by MacKenzie (1991) there is a distinctive area of small pores situated on plate 2" (Figs 10, i1).…”

Section: Observations and Discussionmentioning

confidence: 77%

Redescription of the planktonic dinoflagellatePeridiniella danica(Paulsen) comb. nov. and its distribution in the N.E. Atlantic

Okolodkov

Dodge

1995

European Journal of Phycology

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Light and scanning electron microscopy have been used to examine small planktonic marine dinoflagellates from the N.E. Atlantic area which had previously been referred to Glenodinium danicum Paulsen. New information is given for the thecal tabulation, which is described as: Po, x, 41, 3a, 7", 6c, 47s, 6 "~, 2 t'l. The apical pore is distinctive and its collar continues along the first apical plate, which is depressed. The thecal plates are generally smooth but have a varied arrangement of pores, scattered in short rows or collected in rows parallel to the girdle. In addition, some cells have a concentrated pore field on the second antapical plate which is unlike that recorded from any other dinoflagellate. The species has been redescribed and reclassified into the genus Peridiniella since it shows much more similarity with the type species of that genus than with what is known of Glenodinium. The genus Peridiniella has been classified in the family Cladopyxiaceae of the order Gonyaulacales. New distribution data are given for Peridiniella danica around the British Isles, in the Norwegian Sea, and the N.E. Atlantic. Together with information from the literature, this suggests that the organism has a world-wide distribution in the marine plankton, mainly in cooler waters.

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“…Unusually high ultraviolet (UV) attenuation observed during red tides of Lingulodinium polyedrum (formerly known as Gonyaulax polyedra; Dodge 1989) has been attributed to the presence of mycosporine-like amino acids (MAAs; Vernet et al 1989;Kahru and Mitchell 1998). These compounds have been identified in a wide phyletic assortment of marine organisms and may provide partial photoprotection from ultraviolet (UV) radiation (Karentz et al 1991;Bandaranayake 1998;Jeffrey et al 1999).…”

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confidence: 99%

Influence of mycosporine‐like amino acids (MAAs) on UV absorption by particulate and dissolved organic matter in La Jolla Bay

Whitehead

Vernet

2000

Limnology & Oceanography

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Experimental work with cultures of the red tide dinoflagellate Lingulodinium polyedrum suggested mycosporine-like amino acids (MAAs) are a component of the organic matter excreted by cells. MAAs in dissolved organic matter (DOM) also may have a large influence on absorption of ultraviolet (UV) light through the water column. To test these hypotheses in a natural setting, data were collected from March 1995 through April 1996 in coastal waters off California, U.S.A. During this time, a large red tide of L. polyedrum occurred in March and April 1995. In this field study, we show that MAAs are a quantifiable component of DOM, particularly during the period following the red tide events. Absorption spectra of particulate organic matter (POM) and DOM samples revealed disproportionately high levels of UV absorption relative to visible wavelengths. UV absorption by POM at 330 nm was linearly related to phytoplankton biomass (between 0-10 g chlorophyll [Chl] a L Ϫ1 ), measured as Chl a, accounting for 71% of the variability in absorption. Chromatographic analyses revealed the presence of various MAAs in both POM and DOM pools. MAAs were observed in 83% (n ϭ 53) and 47% (n ϭ 13) of the samples analyzed with concentrations ranging from 0 to 2.75 M (0-696.00 mol g Ϫ1 Chl a) in the POM and 0 to 111.40 nM in the DOM fraction. Absorption by dissolved MAAs, as calculated from the measured concentrations, correlated with DOM UV absorption (r 2 ϭ 0.77) and accounted for up to 10% of the total DOM absorption at 330 nm. Thus, MAAs are a small but quantifiable component of the DOM pool in the field and contribute to UV absorption.

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Some Revisions of the Family Gonyaulacaceae (Dinophyceae) Based on a Scanning Electron Microscope Study

Cited by 96 publications

References 19 publications

Growth and bioactive secondary metabolites of arctic Protoceratium reticulatum (Dinophyceae)

Growth and bioactive secondary metabolites of arctic Protoceratium reticulatum (Dinophyceae)

Redescription of the planktonic dinoflagellatePeridiniella danica(Paulsen) comb. nov. and its distribution in the N.E. Atlantic

Influence of mycosporine‐like amino acids (MAAs) on UV absorption by particulate and dissolved organic matter in La Jolla Bay

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