Vegetative growth of<i>Noctiluca scintillans</i>containing the endosymbiont<i>Pedinomonas noctilucae</i>

Furuya, Ken; Saito, Haruna; Sriwoon, Rujinard; Omura, Takuo; Furio, EE; Borja, VM; Lirdwitayaprasit, Thaithaworn

doi:10.2989/18142320609504167

Cited by 35 publications

(24 citation statements)

References 4 publications

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“…In this species, each dinoflagellate contains thousands of cells of the prasinophyte Pedinomonas noctilucae (Sweeney 1971, 1976). Some of these green N. scintillans strains can grow photoautotrophically in an inorganic medium with some vitamins added, while other strains are dependent upon ingestion of food (Furuya et al 2006; Hansen, Miranda, and Azanza 2004; Saito, Furuya, and Lirdwitayaprasit 2006). Phagotrophy can contribute as much as 30% to the growth rate of the green N. scintillans under saturated prey concentrations and high light intensity.…”

Section: List Of Marine Mixotrophic Dinoflagellates With Temporary Omentioning

confidence: 99%

The Role of Photosynthesis and Food Uptake for the Growth of Marine Mixotrophic Dinoflagellates1

Hansen¹

2011

Journal of Eukaryotic Microbiology

146

128

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Mixotrophy (i.e. combined use of photosynthesis and food uptake for growth) is widespread among marine dinoflagellates. Species with permanent chloroplasts generally display a growth response towards irradiance like an ordinary autotrophic alga. However, some species cannot grow in the light on a standard inorganic nutrient medium, because they require the ingestion of prey for sustained growth. This includes species with various types of chloroplast origin. Only a few species have been shown to be able to grow in the dark if supplied prey. About half of the studied species were primarily phototrophic species, and food uptake marginally increased their growth rates at low irradiances. In the remaining species, food uptake increases to a large degree their growth rate when light is limiting and in some cases even when irradiance is not limiting growth. Some of these species grow relatively fast at high irradiances without food, while other species only grow slowly or cannot even maintain themselves at high irradiances without food. Dinoflagellates, which form symbioses with endo- and ectosymbionts are a very heterogeneous group, which have been studied only sporadically. Some species are clearly primarily phototrophs, while others rely heavily on food uptake for growth.

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Section: List Of Marine Mixotrophic Dinoflagellates With Temporary Omentioning

confidence: 99%

The Role of Photosynthesis and Food Uptake for the Growth of Marine Mixotrophic Dinoflagellates1

Hansen¹

2011

Journal of Eukaryotic Microbiology

146

128

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“…N. scintillans is a large non-photosynthetic dinoflagellate with worldwide distribution which dominates some communities of plankton grazers and occasionally causes spectacular and striking red tides in several coastal regions of the world (Fung and Trott, 1973;Schaumann et al, 1988;Huang and Qi, 1997;Elbrä chter and Qi, 1998;Dela-Cruz et al, 2002;FondaUmani et al, 2004;Fukuda and Endoh, 2006). N. scintillans appears in the water column in two distinctive morphotypes: the tropical or green form, which contains endosymbiontic algae (Sweeney, 1976;Hansen et al, 2004;Furuya et al, 2006) and the strictly heterotrophic or red form that inhabits more temperate waters (Kiørboe and Titelman, 1998). One of the most noteworthy characteristics of N. scintillans is its highly omnivorous feeding behavior.…”

Section: Introductionmentioning

confidence: 97%

Ingestion and clearance rates of the red Noctiluca scintillans fed on the toxic dinoflagellate Alexandrium minutum (Halim)

Frangópulos¹,

Spyrakos²,

Guisande³

2011

Harmful Algae

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“…In contrast to red Noctiluca , the presence of photosynthetic endosymbiont in green Noctiluca implies dependence on environmental conditions different from those of red Noctiluca . In fact, some clonal strains of green Noctiluca grow photoautotrophically without external food supply for generations (Furuya et al. 2006, Saito et al.…”

mentioning

confidence: 99%

“…Thus, the food supply appeared to be replete during the SW monsoon. Under laboratory conditions, trophonts of green Noctiluca showed significant growth with external food supply rather than without external food (Furuya et al. 2006).…”

mentioning

confidence: 99%

POPULATION DYNAMICS OF GREENNOCTILUCA SCINTILLANS(DINOPHYCEAE) ASSOCIATED WITH THE MONSOON CYCLE IN THE UPPER GULF OF THAILAND¹

Sriwoon

Pholpunthin

Lirdwitayaprasit

et al. 2008

Journal of Phycology

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Population dynamics of Noctiluca scintillans (Macartney) Kof. et Swezy containing the photosynthetic endosymbiont Pedinomonas noctilucae (Subrahman.) Sweeney was investigated in relation to environmental conditions in the upper Gulf of Thailand. A clear association was observed between the abundance of N. scintillans and the monsoon cycle, with its blooms occurring during the southwest (SW) monsoon from May to September, and low abundance during the northeast (NE) monsoon from November to February. Nutrient concentrations were higher during the SW monsoon than during the NE monsoon due to the combined effect of increased river discharge into the northern upper gulf and the transport of the riverine inputs by the prevailing clockwise circulation of the water. These nutrient conditions favored the growth of both phytoplankton and the endosymbiont. Correlation analysis revealed that the higher abundance of N. scintillans in the SW monsoon was manifested primarily by higher growth through both sexual and asexual reproduction supported by phagotrophy. However, the dependence of N. scintillans on the nutrient concentration was not significant, probably because the nutrient supply for the endosymbiont was sufficient due to intracellular accumulation of nutrients within the host cells. Sexual reproduction occurred only during the SW monsoon, and its potential importance in population growth was suggested. These findings showed the bottom-up control of the population dynamics of N. scintillans through growth of phytoplankton as prey. The seasonal shift in the circulation pattern associated with the monsoon cycle played a crucial role in blooming of N. scintillans by producing favorable food conditions.

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Vegetative growth ofNoctiluca scintillanscontaining the endosymbiontPedinomonas noctilucae

Cited by 35 publications

References 4 publications

The Role of Photosynthesis and Food Uptake for the Growth of Marine Mixotrophic Dinoflagellates1

The Role of Photosynthesis and Food Uptake for the Growth of Marine Mixotrophic Dinoflagellates1

Ingestion and clearance rates of the red Noctiluca scintillans fed on the toxic dinoflagellate Alexandrium minutum (Halim)

POPULATION DYNAMICS OF GREENNOCTILUCA SCINTILLANS(DINOPHYCEAE) ASSOCIATED WITH THE MONSOON CYCLE IN THE UPPER GULF OF THAILAND¹

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Vegetative growth ofNoctiluca scintillanscontaining the endosymbiontPedinomonas noctilucae

Cited by 35 publications

References 4 publications

The Role of Photosynthesis and Food Uptake for the Growth of Marine Mixotrophic Dinoflagellates1

The Role of Photosynthesis and Food Uptake for the Growth of Marine Mixotrophic Dinoflagellates1

Ingestion and clearance rates of the red Noctiluca scintillans fed on the toxic dinoflagellate Alexandrium minutum (Halim)

POPULATION DYNAMICS OF GREENNOCTILUCA SCINTILLANS(DINOPHYCEAE) ASSOCIATED WITH THE MONSOON CYCLE IN THE UPPER GULF OF THAILAND1

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POPULATION DYNAMICS OF GREENNOCTILUCA SCINTILLANS(DINOPHYCEAE) ASSOCIATED WITH THE MONSOON CYCLE IN THE UPPER GULF OF THAILAND¹