Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.

A number of studies have shown that the production of chemical defences is costly in terrestrial vascular plants. However, these studies do not necessarily reflect the costs of defence production in macroalgae, due to structural and functional differences between vascular plants and macroalgae. Usin...

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Autores principales:	Göran M Nylund, Swantje Enge, Henrik Pavia
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/002d18f7f67144afa7194c3a59393de0
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spelling	oai:doaj.org-article:002d18f7f67144afa7194c3a59393de02021-11-18T07:50:01ZCosts and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.1932-620310.1371/journal.pone.0061291https://doaj.org/article/002d18f7f67144afa7194c3a59393de02013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23585886/?tool=EBIhttps://doaj.org/toc/1932-6203A number of studies have shown that the production of chemical defences is costly in terrestrial vascular plants. However, these studies do not necessarily reflect the costs of defence production in macroalgae, due to structural and functional differences between vascular plants and macroalgae. Using a specific culturing technique, we experimentally manipulated the defence production in the red alga Bonnemaisonia hamifera to examine if the defence is costly in terms of growth. Furthermore, we tested if the defence provides fitness benefits by reducing harmful bacterial colonisation of the alga. Costly defences should provide benefits to the producer in order to be maintained in natural populations, but such benefits through protection against harmful bacterial colonisation have rarely been documented in macroalgae. We found that algae with experimentally impaired defence production, but with an externally controlled epibacterial load, grew significantly better than algae with normal defence production. We also found that undefended algae exposed to a natural epibacterial load experienced a substantial reduction in growth and a 6-fold increase in cell bleaching, compared to controls. Thus, this study provides experimental evidence that chemical defence production in macroalgae is costly, but that the cost is outweighed by fitness benefits provided through protection against harmful bacterial colonisation.Göran M NylundSwantje EngeHenrik PaviaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e61291 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Göran M Nylund Swantje Enge Henrik Pavia Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.
description	A number of studies have shown that the production of chemical defences is costly in terrestrial vascular plants. However, these studies do not necessarily reflect the costs of defence production in macroalgae, due to structural and functional differences between vascular plants and macroalgae. Using a specific culturing technique, we experimentally manipulated the defence production in the red alga Bonnemaisonia hamifera to examine if the defence is costly in terms of growth. Furthermore, we tested if the defence provides fitness benefits by reducing harmful bacterial colonisation of the alga. Costly defences should provide benefits to the producer in order to be maintained in natural populations, but such benefits through protection against harmful bacterial colonisation have rarely been documented in macroalgae. We found that algae with experimentally impaired defence production, but with an externally controlled epibacterial load, grew significantly better than algae with normal defence production. We also found that undefended algae exposed to a natural epibacterial load experienced a substantial reduction in growth and a 6-fold increase in cell bleaching, compared to controls. Thus, this study provides experimental evidence that chemical defence production in macroalgae is costly, but that the cost is outweighed by fitness benefits provided through protection against harmful bacterial colonisation.
format	article
author	Göran M Nylund Swantje Enge Henrik Pavia
author_facet	Göran M Nylund Swantje Enge Henrik Pavia
author_sort	Göran M Nylund
title	Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.
title_short	Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.
title_full	Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.
title_fullStr	Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.
title_full_unstemmed	Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.
title_sort	costs and benefits of chemical defence in the red alga bonnemaisonia hamifera.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/002d18f7f67144afa7194c3a59393de0
work_keys_str_mv	AT goranmnylund costsandbenefitsofchemicaldefenceintheredalgabonnemaisoniahamifera AT swantjeenge costsandbenefitsofchemicaldefenceintheredalgabonnemaisoniahamifera AT henrikpavia costsandbenefitsofchemicaldefenceintheredalgabonnemaisoniahamifera
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Costs and benefits of chemical defence in the Red Alga Bonnemaisonia hamifera.

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