Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion
Early life stages of marine organisms are predicted to be vulnerable to ocean acidification. For macroalgae, reproduction and population persistence rely on spores to settle, adhere and continue the algal life cycle, yet the effect of ocean acidification on this critical life stage has been largely...
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crwiley:10.1111/jpy.12614 2024-03-31T07:54:43+00:00 Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion Guenther, Rebecca Miklasz, Kevin Carrington, Emily Martone, Patrick T. Graham, M. National Science Foundation Natural Sciences and Engineering Research Council of Canada 2018 http://dx.doi.org/10.1111/jpy.12614 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjpy.12614 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.12614 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpy.12614 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/jpy.12614 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 54, issue 2, page 153-158 ISSN 0022-3646 1529-8817 Plant Science Aquatic Science journal-article 2018 crwiley https://doi.org/10.1111/jpy.12614 2024-03-04T13:02:38Z Early life stages of marine organisms are predicted to be vulnerable to ocean acidification. For macroalgae, reproduction and population persistence rely on spores to settle, adhere and continue the algal life cycle, yet the effect of ocean acidification on this critical life stage has been largely overlooked. We explicitly tested the biomechanical impact of reduced pH on early spore adhesion. We developed a shear flume to examine the effect of reduced pH on spore attachment time and strength in two intertidal rhodophyte macroalgae, one calcified ( Corallina vancouveriensis ) and one noncalcified ( Polyostea robusta ). Reduced pH delayed spore attachment of both species by 40%–52% and weakened attachment strength in C. vancouveriensis , causing spores to dislodge at lower flow‐induced shear forces, but had no effect on the attachment strength of P. robusta . Results are consistent with our prediction that reduced pH disrupts proper curing and gel formation of spore adhesives (anionic polysaccharides and glycoproteins) via protonation and cation displacement, although experimental verification is needed. Our results demonstrate that ocean acidification negatively, and differentially, impacts spore adhesion in two macroalgae. If results hold in field conditions, reduced ocean pH has the potential to impact macroalgal communities via spore dysfunction, regardless of the physiological tolerance of mature thalli. Article in Journal/Newspaper Ocean acidification Wiley Online Library Journal of Phycology 54 2 153 158 |
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Wiley Online Library |
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English |
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Plant Science Aquatic Science |
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Plant Science Aquatic Science Guenther, Rebecca Miklasz, Kevin Carrington, Emily Martone, Patrick T. Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion |
topic_facet |
Plant Science Aquatic Science |
description |
Early life stages of marine organisms are predicted to be vulnerable to ocean acidification. For macroalgae, reproduction and population persistence rely on spores to settle, adhere and continue the algal life cycle, yet the effect of ocean acidification on this critical life stage has been largely overlooked. We explicitly tested the biomechanical impact of reduced pH on early spore adhesion. We developed a shear flume to examine the effect of reduced pH on spore attachment time and strength in two intertidal rhodophyte macroalgae, one calcified ( Corallina vancouveriensis ) and one noncalcified ( Polyostea robusta ). Reduced pH delayed spore attachment of both species by 40%–52% and weakened attachment strength in C. vancouveriensis , causing spores to dislodge at lower flow‐induced shear forces, but had no effect on the attachment strength of P. robusta . Results are consistent with our prediction that reduced pH disrupts proper curing and gel formation of spore adhesives (anionic polysaccharides and glycoproteins) via protonation and cation displacement, although experimental verification is needed. Our results demonstrate that ocean acidification negatively, and differentially, impacts spore adhesion in two macroalgae. If results hold in field conditions, reduced ocean pH has the potential to impact macroalgal communities via spore dysfunction, regardless of the physiological tolerance of mature thalli. |
author2 |
Graham, M. National Science Foundation Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Guenther, Rebecca Miklasz, Kevin Carrington, Emily Martone, Patrick T. |
author_facet |
Guenther, Rebecca Miklasz, Kevin Carrington, Emily Martone, Patrick T. |
author_sort |
Guenther, Rebecca |
title |
Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion |
title_short |
Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion |
title_full |
Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion |
title_fullStr |
Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion |
title_full_unstemmed |
Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion |
title_sort |
macroalgal spore dysfunction: ocean acidification delays and weakens adhesion |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/jpy.12614 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjpy.12614 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.12614 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpy.12614 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/jpy.12614 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Journal of Phycology volume 54, issue 2, page 153-158 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jpy.12614 |
container_title |
Journal of Phycology |
container_volume |
54 |
container_issue |
2 |
container_start_page |
153 |
op_container_end_page |
158 |
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1795035842178187264 |