Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation
A plethora of adaptive responses to predation has been described in microscopic aquatic producers. Although the energetic costs of these responses are expected, with their consequences going far beyond an individual, their underlying molecular and metabolic mechanisms are not fully known. One, so fa...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.907174/full |
| _version_ | 1811215174879674368 |
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| author | Małgorzata Grzesiuk Małgorzata Grzesiuk Małgorzata Grzesiuk Barbara Pietrzak Alexander Wacker Alexander Wacker Joanna Pijanowska |
| author_facet | Małgorzata Grzesiuk Małgorzata Grzesiuk Małgorzata Grzesiuk Barbara Pietrzak Alexander Wacker Alexander Wacker Joanna Pijanowska |
| author_sort | Małgorzata Grzesiuk |
| collection | DOAJ |
| description | A plethora of adaptive responses to predation has been described in microscopic aquatic producers. Although the energetic costs of these responses are expected, with their consequences going far beyond an individual, their underlying molecular and metabolic mechanisms are not fully known. One, so far hardly considered, is if and how the photosynthetic efficiency of phytoplankton might change in response to the predation cues. Our main aim was to identify such responses in phytoplankton and to detect if they are taxon-specific. We exposed seven algae and seven cyanobacteria species to the chemical cues of an efficient consumer, Daphnia magna, which was fed either a green alga, Acutodesmus obliquus, or a cyanobacterium, Synechococcus elongatus (kairomone and alarm cues), or was not fed (kairomone alone). In most algal and cyanobacterial species studied, the quantum yield of photosystem II increased in response to predator fed cyanobacterium, whereas in most of these species the yield did not change in response to predator fed alga. Also, cyanobacteria tended not to respond to a non-feeding predator. The modal qualitative responses of the electron transport rate were similar to those of the quantum yield. To our best knowledge, the results presented here are the broadest scan of photosystem II responses in the predation context so far. |
| first_indexed | 2024-04-12T06:17:35Z |
| format | Article |
| id | doaj.art-dac67c6a58bd4e65835141f261daa084 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-12T06:17:35Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-dac67c6a58bd4e65835141f261daa0842022-12-22T03:44:25ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-07-011310.3389/fpls.2022.907174907174Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predationMałgorzata Grzesiuk0Małgorzata Grzesiuk1Małgorzata Grzesiuk2Barbara Pietrzak3Alexander Wacker4Alexander Wacker5Joanna Pijanowska6Department of Hydrobiology, Faculty of Biology, Institute of Functional Biology and Ecology, University of Warsaw Biological and Chemical Research Centre, Warszawa, PolandDepartment of Biochemistry and Microbiology, Institute of Biology, Warsaw University of Life Sciences (SGGW), Warszawa, PolandDepartment of Ecology and Ecosystem Modelling, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, GermanyDepartment of Hydrobiology, Faculty of Biology, Institute of Functional Biology and Ecology, University of Warsaw Biological and Chemical Research Centre, Warszawa, PolandDepartment of Ecology and Ecosystem Modelling, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, GermanyDepartment of Animal Ecology, Zoological Institute and Museum, University of Greifswald, Greifswald, GermanyDepartment of Hydrobiology, Faculty of Biology, Institute of Functional Biology and Ecology, University of Warsaw Biological and Chemical Research Centre, Warszawa, PolandA plethora of adaptive responses to predation has been described in microscopic aquatic producers. Although the energetic costs of these responses are expected, with their consequences going far beyond an individual, their underlying molecular and metabolic mechanisms are not fully known. One, so far hardly considered, is if and how the photosynthetic efficiency of phytoplankton might change in response to the predation cues. Our main aim was to identify such responses in phytoplankton and to detect if they are taxon-specific. We exposed seven algae and seven cyanobacteria species to the chemical cues of an efficient consumer, Daphnia magna, which was fed either a green alga, Acutodesmus obliquus, or a cyanobacterium, Synechococcus elongatus (kairomone and alarm cues), or was not fed (kairomone alone). In most algal and cyanobacterial species studied, the quantum yield of photosystem II increased in response to predator fed cyanobacterium, whereas in most of these species the yield did not change in response to predator fed alga. Also, cyanobacteria tended not to respond to a non-feeding predator. The modal qualitative responses of the electron transport rate were similar to those of the quantum yield. To our best knowledge, the results presented here are the broadest scan of photosystem II responses in the predation context so far.https://www.frontiersin.org/articles/10.3389/fpls.2022.907174/fullphytoplanktongrazingpredationDaphniaphenotypic plasticitybiotic stress |
| spellingShingle | Małgorzata Grzesiuk Małgorzata Grzesiuk Małgorzata Grzesiuk Barbara Pietrzak Alexander Wacker Alexander Wacker Joanna Pijanowska Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation Frontiers in Plant Science phytoplankton grazing predation Daphnia phenotypic plasticity biotic stress |
| title | Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation |
| title_full | Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation |
| title_fullStr | Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation |
| title_full_unstemmed | Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation |
| title_short | Photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation |
| title_sort | photosynthetic activity in both algae and cyanobacteria changes in response to cues of predation |
| topic | phytoplankton grazing predation Daphnia phenotypic plasticity biotic stress |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2022.907174/full |
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