Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls
Marimo are unusual, attractive and endangered spherical aggregations of the filamentous green macroalga Aegagropila linnaei (Figure 1A–E) [1]. Globally rare, marimo populations persist in cold freshwater lakes in Japan, Iceland and Ukraine. Marimo occupy both the lake bed and rise to the lake surfac...
Published in: | Current Biology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://hdl.handle.net/1983/2ab93368-c54a-4003-ab90-d53fafd489b7 https://research-information.bris.ac.uk/en/publications/2ab93368-c54a-4003-ab90-d53fafd489b7 https://doi.org/10.1016/j.cub.2018.07.027 https://research-information.bris.ac.uk/ws/files/166038922/1_s2.0_S0960982218309266_main.pdf http://www.scopus.com/inward/record.url?scp=85051528192&partnerID=8YFLogxK |
id |
ftubristolcris:oai:research-information.bris.ac.uk:publications/2ab93368-c54a-4003-ab90-d53fafd489b7 |
---|---|
record_format |
openpolar |
spelling |
ftubristolcris:oai:research-information.bris.ac.uk:publications/2ab93368-c54a-4003-ab90-d53fafd489b7 2024-01-28T10:06:42+01:00 Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls Cano Ramirez, Dora de Fraine, Saskia Griffiths, Olivia Dodd, Antony 2018-08-20 application/pdf https://hdl.handle.net/1983/2ab93368-c54a-4003-ab90-d53fafd489b7 https://research-information.bris.ac.uk/en/publications/2ab93368-c54a-4003-ab90-d53fafd489b7 https://doi.org/10.1016/j.cub.2018.07.027 https://research-information.bris.ac.uk/ws/files/166038922/1_s2.0_S0960982218309266_main.pdf http://www.scopus.com/inward/record.url?scp=85051528192&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Cano Ramirez , D , de Fraine , S , Griffiths , O & Dodd , A 2018 , ' Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls ' , Current Biology , vol. 28 , no. 16 , pp. R869-R870 . https://doi.org/10.1016/j.cub.2018.07.027 , https://doi.org/10.1016/j.cub.2018.07.027 article 2018 ftubristolcris https://doi.org/10.1016/j.cub.2018.07.027 2024-01-04T23:56:30Z Marimo are unusual, attractive and endangered spherical aggregations of the filamentous green macroalga Aegagropila linnaei (Figure 1A–E) [1]. Globally rare, marimo populations persist in cold freshwater lakes in Japan, Iceland and Ukraine. Marimo occupy both the lake bed and rise to the lake surface [2,3]. Here, we show that marimo buoyancy is conferred by bubbles arising from photosynthesis. We find that light-induced acquisition of buoyancy by marimo is circadian-regulated. We identify that there are circadian rhythms of photosynthesis in marimo, which might explain the circadian rhythm of buoyancy in response to light. This identifies a circadian-regulated buoyancy response in an intriguing and little-studied plant. Cano-Ramirez et al. show that marimo lake balls are buoyant in the light because photosynthesis causes bubbles to form on the balls. They identified a circadian rhythm in the time marimo take to become buoyant, and identified circadian rhythms of photosynthesis in marimo. These processes might underlie movements of marimo within the water column. Article in Journal/Newspaper Iceland University of Bristol: Bristol Research Ramirez ENVELOPE(-56.683,-56.683,-63.583,-63.583) Current Biology 28 16 R869 R870 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
description |
Marimo are unusual, attractive and endangered spherical aggregations of the filamentous green macroalga Aegagropila linnaei (Figure 1A–E) [1]. Globally rare, marimo populations persist in cold freshwater lakes in Japan, Iceland and Ukraine. Marimo occupy both the lake bed and rise to the lake surface [2,3]. Here, we show that marimo buoyancy is conferred by bubbles arising from photosynthesis. We find that light-induced acquisition of buoyancy by marimo is circadian-regulated. We identify that there are circadian rhythms of photosynthesis in marimo, which might explain the circadian rhythm of buoyancy in response to light. This identifies a circadian-regulated buoyancy response in an intriguing and little-studied plant. Cano-Ramirez et al. show that marimo lake balls are buoyant in the light because photosynthesis causes bubbles to form on the balls. They identified a circadian rhythm in the time marimo take to become buoyant, and identified circadian rhythms of photosynthesis in marimo. These processes might underlie movements of marimo within the water column. |
format |
Article in Journal/Newspaper |
author |
Cano Ramirez, Dora de Fraine, Saskia Griffiths, Olivia Dodd, Antony |
spellingShingle |
Cano Ramirez, Dora de Fraine, Saskia Griffiths, Olivia Dodd, Antony Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls |
author_facet |
Cano Ramirez, Dora de Fraine, Saskia Griffiths, Olivia Dodd, Antony |
author_sort |
Cano Ramirez, Dora |
title |
Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls |
title_short |
Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls |
title_full |
Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls |
title_fullStr |
Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls |
title_full_unstemmed |
Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls |
title_sort |
photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls |
publishDate |
2018 |
url |
https://hdl.handle.net/1983/2ab93368-c54a-4003-ab90-d53fafd489b7 https://research-information.bris.ac.uk/en/publications/2ab93368-c54a-4003-ab90-d53fafd489b7 https://doi.org/10.1016/j.cub.2018.07.027 https://research-information.bris.ac.uk/ws/files/166038922/1_s2.0_S0960982218309266_main.pdf http://www.scopus.com/inward/record.url?scp=85051528192&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-56.683,-56.683,-63.583,-63.583) |
geographic |
Ramirez |
geographic_facet |
Ramirez |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Cano Ramirez , D , de Fraine , S , Griffiths , O & Dodd , A 2018 , ' Photosynthesis and circadian rhythms regulate the buoyancy of marimo lake balls ' , Current Biology , vol. 28 , no. 16 , pp. R869-R870 . https://doi.org/10.1016/j.cub.2018.07.027 , https://doi.org/10.1016/j.cub.2018.07.027 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.cub.2018.07.027 |
container_title |
Current Biology |
container_volume |
28 |
container_issue |
16 |
container_start_page |
R869 |
op_container_end_page |
R870 |
_version_ |
1789333763266707456 |