Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity

Abstract Short flashes of blue light (bioluminescence) from dinoflagellates can reduce copepod grazing of light-emitting cells. Other protective strategies against grazing are toxicity, reduced cell chain length and altered swimming patterns in different phytoplankton. Both toxicity and bioluminesce...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jenny Lindström, Wiebke Grebner, Kristie Rigby, Erik Selander
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/57fa8396cd8a49a2b0afe7923128b93b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:57fa8396cd8a49a2b0afe7923128b93b
record_format	dspace
spelling	oai:doaj.org-article:57fa8396cd8a49a2b0afe7923128b93b2021-12-02T15:05:30ZEffects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity10.1038/s41598-017-13293-42045-2322https://doaj.org/article/57fa8396cd8a49a2b0afe7923128b93b2017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-13293-4https://doaj.org/toc/2045-2322Abstract Short flashes of blue light (bioluminescence) from dinoflagellates can reduce copepod grazing of light-emitting cells. Other protective strategies against grazing are toxicity, reduced cell chain length and altered swimming patterns in different phytoplankton. Both toxicity and bioluminescence capacity in dinoflagellates decrease in copepod-free cultures, but toxin production can be restored in response to chemical alarm signals from copepods, copepodamides. Here we show that strains of the dinoflagellates Lingulodinium polyedra and Alexandrium tamarense, kept in culture for 14 and 9 years respectively, are capable of increasing their total bioluminescence capacity in response to copepodamides. The luminescence response to mechanical stimulation with air bubbles also increases significantly in L. polyedra after exposure to copepodamides. Effects on size, swimming speed and rate of change of direction in L. polyedra and A. tamarense were not detected, suggesting that post-encounter mechanisms such as bioluminescence and toxin production may constitute the dominating line of defence in these taxa. To our knowledge, this study provides the first evidence of changes in bioluminescence physiology as a response to chemical cues from natural enemies and emphasizes the importance of bioluminescence as an anti-grazing strategy.Jenny LindströmWiebke GrebnerKristie RigbyErik SelanderNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jenny Lindström Wiebke Grebner Kristie Rigby Erik Selander Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity
description	Abstract Short flashes of blue light (bioluminescence) from dinoflagellates can reduce copepod grazing of light-emitting cells. Other protective strategies against grazing are toxicity, reduced cell chain length and altered swimming patterns in different phytoplankton. Both toxicity and bioluminescence capacity in dinoflagellates decrease in copepod-free cultures, but toxin production can be restored in response to chemical alarm signals from copepods, copepodamides. Here we show that strains of the dinoflagellates Lingulodinium polyedra and Alexandrium tamarense, kept in culture for 14 and 9 years respectively, are capable of increasing their total bioluminescence capacity in response to copepodamides. The luminescence response to mechanical stimulation with air bubbles also increases significantly in L. polyedra after exposure to copepodamides. Effects on size, swimming speed and rate of change of direction in L. polyedra and A. tamarense were not detected, suggesting that post-encounter mechanisms such as bioluminescence and toxin production may constitute the dominating line of defence in these taxa. To our knowledge, this study provides the first evidence of changes in bioluminescence physiology as a response to chemical cues from natural enemies and emphasizes the importance of bioluminescence as an anti-grazing strategy.
format	article
author	Jenny Lindström Wiebke Grebner Kristie Rigby Erik Selander
author_facet	Jenny Lindström Wiebke Grebner Kristie Rigby Erik Selander
author_sort	Jenny Lindström
title	Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity
title_short	Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity
title_full	Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity
title_fullStr	Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity
title_full_unstemmed	Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity
title_sort	effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/57fa8396cd8a49a2b0afe7923128b93b
work_keys_str_mv	AT jennylindstrom effectsofpredatorlipidsondinoflagellatedefencemechanismsincreasedbioluminescencecapacity AT wiebkegrebner effectsofpredatorlipidsondinoflagellatedefencemechanismsincreasedbioluminescencecapacity AT kristierigby effectsofpredatorlipidsondinoflagellatedefencemechanismsincreasedbioluminescencecapacity AT erikselander effectsofpredatorlipidsondinoflagellatedefencemechanismsincreasedbioluminescencecapacity
_version_	1718388830357159936

Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity

Ejemplares similares