Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans

Abstract Noctiluca scintillans (Noctiluca) is a cosmopolitan red tide forming heterotrophic dinoflagellate. In this study, we investigated its ingestion, elemental growth yield and excretion when supplied with different quality food (nutrient-balanced, N-limited and P-limited). Total cellular elemen...

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Autores principales:	Shuwen Zhang, Hongbin Liu, Patricia M. Glibert, Cui Guo, Ying Ke
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/63b6a658f28844f1b6557582c78e36a1
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spelling	oai:doaj.org-article:63b6a658f28844f1b6557582c78e36a12021-12-02T12:31:54ZEffects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans10.1038/s41598-017-05991-w2045-2322https://doaj.org/article/63b6a658f28844f1b6557582c78e36a12017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05991-whttps://doaj.org/toc/2045-2322Abstract Noctiluca scintillans (Noctiluca) is a cosmopolitan red tide forming heterotrophic dinoflagellate. In this study, we investigated its ingestion, elemental growth yield and excretion when supplied with different quality food (nutrient-balanced, N-limited and P-limited). Total cellular elemental ratios of Noctiluca were nearly homeostatic, but the ratio of its intracellular NH4 + and PO4 3− was weakly regulated. Noctiluca thus seems able to differentially allocate N and P to organic and inorganic pools to maintain overall homeostasis, and it regulated its internal N more strongly and efficiently than P. The latter was substantiated by its comparatively stable C:N ratio and compensatory feeding on N-limited prey. Using both starvation experiments and mass balance models, it was found that excretion of C, N, and P by Noctiluca is highly affected by prey nutritional quality. However, based on modeling results, nutrients seem efficiently retained in actively feeding Noctiluca for reproduction rather than directly released as was shown experimentally in starved cells. Moreover, actively feeding Noctiluca tend to retain P and preferentially release N, highlighting its susceptible to P-limitation. Recycling of N and P by Noctiluca may supply substantial nutrients for phytoplankton growth, especially following bloom senescence.Shuwen ZhangHongbin LiuPatricia M. GlibertCui GuoYing KeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shuwen Zhang Hongbin Liu Patricia M. Glibert Cui Guo Ying Ke Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans
description	Abstract Noctiluca scintillans (Noctiluca) is a cosmopolitan red tide forming heterotrophic dinoflagellate. In this study, we investigated its ingestion, elemental growth yield and excretion when supplied with different quality food (nutrient-balanced, N-limited and P-limited). Total cellular elemental ratios of Noctiluca were nearly homeostatic, but the ratio of its intracellular NH4 + and PO4 3− was weakly regulated. Noctiluca thus seems able to differentially allocate N and P to organic and inorganic pools to maintain overall homeostasis, and it regulated its internal N more strongly and efficiently than P. The latter was substantiated by its comparatively stable C:N ratio and compensatory feeding on N-limited prey. Using both starvation experiments and mass balance models, it was found that excretion of C, N, and P by Noctiluca is highly affected by prey nutritional quality. However, based on modeling results, nutrients seem efficiently retained in actively feeding Noctiluca for reproduction rather than directly released as was shown experimentally in starved cells. Moreover, actively feeding Noctiluca tend to retain P and preferentially release N, highlighting its susceptible to P-limitation. Recycling of N and P by Noctiluca may supply substantial nutrients for phytoplankton growth, especially following bloom senescence.
format	article
author	Shuwen Zhang Hongbin Liu Patricia M. Glibert Cui Guo Ying Ke
author_facet	Shuwen Zhang Hongbin Liu Patricia M. Glibert Cui Guo Ying Ke
author_sort	Shuwen Zhang
title	Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans
title_short	Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans
title_full	Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans
title_fullStr	Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans
title_full_unstemmed	Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans
title_sort	effects of prey of different nutrient quality on elemental nutrient budgets in noctiluca scintillans
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/63b6a658f28844f1b6557582c78e36a1
work_keys_str_mv	AT shuwenzhang effectsofpreyofdifferentnutrientqualityonelementalnutrientbudgetsinnoctilucascintillans AT hongbinliu effectsofpreyofdifferentnutrientqualityonelementalnutrientbudgetsinnoctilucascintillans AT patriciamglibert effectsofpreyofdifferentnutrientqualityonelementalnutrientbudgetsinnoctilucascintillans AT cuiguo effectsofpreyofdifferentnutrientqualityonelementalnutrientbudgetsinnoctilucascintillans AT yingke effectsofpreyofdifferentnutrientqualityonelementalnutrientbudgetsinnoctilucascintillans
_version_	1718394217360785408

Effects of prey of different nutrient quality on elemental nutrient budgets in Noctiluca scintillans

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