Sponge-derived Ageladine A affects the in vivo fluorescence emission spectra of microalgae
In several marine hosts of microalgae, fluorescent natural products may play an important role. While the ecological function of these compounds is not well understood, an interaction of these molecules with the photosynthesis of the symbionts has been suggested. In this study, the effect of Ageladi...
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| description | In several marine hosts of microalgae, fluorescent natural products may play an important role. While the ecological function of these compounds is not well understood, an interaction of these molecules with the photosynthesis of the symbionts has been suggested. In this study, the effect of Ageladine A (Ag A), a pH-dependent fluorophore found in sponges of the genus Agelas, on microalgal fluorescence was examined. The spectra showed an accumulation of Ag A within the cells, but with variable impacts on fluorescence. While in two Synechococcus strains, fluorescence of phycoerythrin increased significantly, the fluorescence of other Synechococcus strains was not affected. In four out of the five eukaryote species examined, chlorophyll a (Chl a) fluorescence intensity was modulated. In Tisochrysis lutea, for example, the position of the fluorescence emission maximum of Chl a was shifted. The variety of these effects of Ag A on microalgal fluorescence suggests that fluorophores derived from animals could play a crucial role in shaping the composition of marine host/symbiont systems. |
| doi_str_mv | 10.1371/journal.pone.0242464 |
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While the ecological function of these compounds is not well understood, an interaction of these molecules with the photosynthesis of the symbionts has been suggested. In this study, the effect of Ageladine A (Ag A), a pH-dependent fluorophore found in sponges of the genus Agelas, on microalgal fluorescence was examined. The spectra showed an accumulation of Ag A within the cells, but with variable impacts on fluorescence. While in two Synechococcus strains, fluorescence of phycoerythrin increased significantly, the fluorescence of other Synechococcus strains was not affected. In four out of the five eukaryote species examined, chlorophyll a (Chl a) fluorescence intensity was modulated. In Tisochrysis lutea, for example, the position of the fluorescence emission maximum of Chl a was shifted. The variety of these effects of Ag A on microalgal fluorescence suggests that fluorophores derived from animals could play a crucial role in shaping the composition of marine host/symbiont systems.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0242464</identifier><identifier>PMID: 33211752</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Agelas - chemistry ; Algae ; Animals ; Aquatic microorganisms ; Biological research ; Biology and Life Sciences ; Bioluminescence ; Chemical compounds ; Chemistry ; Chlorophyll ; Chlorophyll A - chemistry ; Ecological function ; Ecology and Environmental Sciences ; Emission spectra ; Emissions ; Eukaryotes ; Fluorescence ; Fluorescent chemicals ; Fluorophores ; Marine algae ; Micrasterias - drug effects ; Micrasterias - metabolism ; Microalgae ; Microalgae - drug effects ; Microalgae - metabolism ; Microorganisms ; Natural products ; Optical properties ; pH effects ; Photosynthesis ; Photosynthesis - drug effects ; Photosynthesis - radiation effects ; Phycobilisomes - chemistry ; Phycobilisomes - drug effects ; Phycoerythrin - chemistry ; Physical Sciences ; Physiological aspects ; Pigments ; Pigments, Biological - chemistry ; Pyrroles - isolation & purification ; Pyrroles - pharmacology ; Species Specificity ; Spectrometry, Fluorescence ; Sponges (Animals) ; Symbionts ; Symbiosis ; Synechococcus ; Synechococcus - drug effects ; Synechococcus - metabolism ; Ultraviolet Rays</subject><ispartof>PloS one, 2020-11, Vol.15 (11), p.e0242464-e0242464</ispartof><rights>COPYRIGHT 2020 Public Library of Science</rights><rights>2020 Peter et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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While the ecological function of these compounds is not well understood, an interaction of these molecules with the photosynthesis of the symbionts has been suggested. In this study, the effect of Ageladine A (Ag A), a pH-dependent fluorophore found in sponges of the genus Agelas, on microalgal fluorescence was examined. The spectra showed an accumulation of Ag A within the cells, but with variable impacts on fluorescence. While in two Synechococcus strains, fluorescence of phycoerythrin increased significantly, the fluorescence of other Synechococcus strains was not affected. In four out of the five eukaryote species examined, chlorophyll a (Chl a) fluorescence intensity was modulated. In Tisochrysis lutea, for example, the position of the fluorescence emission maximum of Chl a was shifted. The variety of these effects of Ag A on microalgal fluorescence suggests that fluorophores derived from animals could play a crucial role in shaping the composition of marine host/symbiont systems.</description><subject>Agelas - chemistry</subject><subject>Algae</subject><subject>Animals</subject><subject>Aquatic microorganisms</subject><subject>Biological research</subject><subject>Biology and Life Sciences</subject><subject>Bioluminescence</subject><subject>Chemical compounds</subject><subject>Chemistry</subject><subject>Chlorophyll</subject><subject>Chlorophyll A - chemistry</subject><subject>Ecological function</subject><subject>Ecology and Environmental Sciences</subject><subject>Emission spectra</subject><subject>Emissions</subject><subject>Eukaryotes</subject><subject>Fluorescence</subject><subject>Fluorescent chemicals</subject><subject>Fluorophores</subject><subject>Marine algae</subject><subject>Micrasterias - drug effects</subject><subject>Micrasterias - metabolism</subject><subject>Microalgae</subject><subject>Microalgae - 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While the ecological function of these compounds is not well understood, an interaction of these molecules with the photosynthesis of the symbionts has been suggested. In this study, the effect of Ageladine A (Ag A), a pH-dependent fluorophore found in sponges of the genus Agelas, on microalgal fluorescence was examined. The spectra showed an accumulation of Ag A within the cells, but with variable impacts on fluorescence. While in two Synechococcus strains, fluorescence of phycoerythrin increased significantly, the fluorescence of other Synechococcus strains was not affected. In four out of the five eukaryote species examined, chlorophyll a (Chl a) fluorescence intensity was modulated. In Tisochrysis lutea, for example, the position of the fluorescence emission maximum of Chl a was shifted. The variety of these effects of Ag A on microalgal fluorescence suggests that fluorophores derived from animals could play a crucial role in shaping the composition of marine host/symbiont systems.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>33211752</pmid><doi>10.1371/journal.pone.0242464</doi><tpages>e0242464</tpages><orcidid>https://orcid.org/0000-0002-5351-2902</orcidid><orcidid>https://orcid.org/0000-0002-9584-6214</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Agelas - chemistry Algae Animals Aquatic microorganisms Biological research Biology and Life Sciences Bioluminescence Chemical compounds Chemistry Chlorophyll Chlorophyll A - chemistry Ecological function Ecology and Environmental Sciences Emission spectra Emissions Eukaryotes Fluorescence Fluorescent chemicals Fluorophores Marine algae Micrasterias - drug effects Micrasterias - metabolism Microalgae Microalgae - drug effects Microalgae - metabolism Microorganisms Natural products Optical properties pH effects Photosynthesis Photosynthesis - drug effects Photosynthesis - radiation effects Phycobilisomes - chemistry Phycobilisomes - drug effects Phycoerythrin - chemistry Physical Sciences Physiological aspects Pigments Pigments, Biological - chemistry Pyrroles - isolation & purification Pyrroles - pharmacology Species Specificity Spectrometry, Fluorescence Sponges (Animals) Symbionts Symbiosis Synechococcus Synechococcus - drug effects Synechococcus - metabolism Ultraviolet Rays |
| title | Sponge-derived Ageladine A affects the in vivo fluorescence emission spectra of microalgae |
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