Karlodinium elegans sp. nov. (Gymnodiniales, Dinophyceae), a novel species isolated from the East China Sea in a dinoflagellate bloom

Cen, Jingyi; Wang, Jianyan; Huang, Lifen; Lin, Yarou; Ding, Guangmao; Qi, Yuzao; Lü, Songhui

doi:10.1007/s00343-020-0221-4

Cited by 7 publications

(5 citation statements)

References 34 publications

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“…According to Nézan et al (2014) a mixed fixation with Lugol's solution and glutaraldehyde allows to see fine details of the cell surface by removing the membranous material or mucilage that covers the cell. Likewise, Cen et al (2021) established that the double fixation revealed a much clearer cell surface. Although cells analyzed in our study were fixed only with Lugol's solution, the main morphological features mentioned above could be observed.…”

Section: Karlodinium Elegansmentioning

confidence: 93%

“…Ovoid cells with pointy apex, the epicone is conical and displays rows of parallel furrows that are twisted to the left side in relation to the cell longitudinal axis. Each epicone furrow carries rows of rounded structures ending in small pores (micro-processes sensu Paulmier et al, 1995; knobs sensu Cen et al, 2021) (Fig. 4A, B).…”

Section: Karlodinium Elegansmentioning

confidence: 99%

“…4E). This is an autotrophic species with several yellowish-brown chloroplasts distributed in the cell periphery (Cen et al, 2021). Dimensions: length average 14.9 µm ± 2.7, width average 11.1 µm ± 2.0 (n = 24).…”

Section: Karlodinium Elegansmentioning

confidence: 99%

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Field observations on rare or unnoticed dinoflagellates from the Argentine Sea

Fabro¹,

Almandoz

2021

Bol. Soc. Argent. Bot.

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Background and aims: Planktonic dinoflagellates have a great ecological significance in marine environments. While some dinoflagellate species commonly reach bloom concentrations and are thus conspicuous components of marine phytoplankton, others occur in very low abundances which make them difficult to detect in field studies.Here we analyzed dinoflagellate composition and abundance in five oceanographic expeditions carried out in continental shelf and slope waters of the Argentine Sea.M&M: Plankton abundance was estimated by the Utermöhl method, using inverted microscopy, whereas further optical and scanning electron microscopy was applied for the identification of dinoflagellate species.Results: We focused on the occurrence of seven dinoflagellates that have been previously poorly documented or overlooked in marine environments worldwide: Dinophysis microstrigiliformis; Gyrodinium sp.; Karlodinium elegans; Oxytoxumlaticeps; Peridiniella danica; Peridiniella globosa and Prorocentrum nux. The latest and K. elegans are observed for the first time in field conditions after their original descriptions based on cell cultures. While most species were detected in low ormoderate abundances, P. nux, which is the smallest Prorocentrum species, reached 82,000 cells L-1 in slope waters. Very small Gyrodinium cells (11.5 µm long; 8.7 µm wide) with a distribution restricted to slope waters during spring, were not possible tobe accurately assigned to a species.Conclusions: This study contributes to the understanding of dinoflagellate diversity in the Argentine Sea and the worldwide distribution of little known species.

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Section: Karlodinium Elegansmentioning

confidence: 93%

Section: Karlodinium Elegansmentioning

confidence: 99%

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Field observations on rare or unnoticed dinoflagellates from the Argentine Sea

Fabro¹,

Almandoz

2021

Bol. Soc. Argent. Bot.

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“…dominated bloom (May 24–29, 2019. Pingtan, China) ( 26 ). For both laboratory culture and naturally bloom seawater, the bacterial agent powder was added at a final mass fraction of 0.04% (m/V).…”

Section: Methodsmentioning

confidence: 99%

“…Karlodinium is a sister genus of Karenia , both of them belong to the family Kareniaceae, with similar cell structures and ecological characteristics. They were reported to bloom simultaneously in cases ( 24 – 26 ). In this study, a new algicidal bacterial strain, FDHY-MZ2, with high lysis efficiency for K. mikimotoi , was isolated and identified from surface seawater at the decline phase of a K. mikimotoi bloom.…”

Section: Introductionmentioning

confidence: 99%