Biomolecular Composition of Sea Ice Microalgae and Its Influence on Marine Biogeochemical Cycling and Carbon Transfer through Polar Marine Food Webs

Duncan, RJ; Petrou, K

Biomolecular Composition of Sea Ice Microalgae and Its Influence on Marine Biogeochemical Cycling and Carbon Transfer through Polar Marine Food Webs

Duncan, RJ Petrou, K

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Publisher:: MDPI AG
Publication Type:: Journal Article
Citation:: Geosciences (Switzerland), 2022, 12, (1), pp. 38
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Duncan, RJ
dc.contributor.author	Petrou, K https://orcid.org/0000-0002-2703-0694
dc.date.accessioned	2022-03-18T04:57:09Z
dc.date.available	2022-03-18T04:57:09Z
dc.date.issued	2022-01-01
dc.identifier.citation	Geosciences (Switzerland), 2022, 12, (1), pp. 38
dc.identifier.issn	2163-1719
dc.identifier.issn	2076-3263
dc.identifier.uri	http://hdl.handle.net/10453/155343
dc.description.abstract	Microalgae growing on the underside of sea ice are key primary producers in polar marine environments. Their nutritional status, determined by their macromolecular composition, contributes to the region’s biochemistry and the unique temporal and spatial characteristics of their growth makes them essential for sustaining polar marine food webs. Here, we review the plasticity and taxonomic diversity of sea ice microalgae macromolecular composition, with a focus on how different environmental conditions influence macromolecular production and partitioning within cells and communities. The advantages and disadvantages of methodologies for assessing macromolecular composition are presented, including techniques that provide high throughput, whole macromolecu-lar profile and/or species-specific resolution, which are particularly recommended for future studies. The directions of environmentally driven macromolecular changes are discussed, alongside antici-pated consequences on nutrients supplied to the polar marine ecosystem. Given that polar regions are facing accelerated rates of environmental change, it is argued that a climate change signature will become evident in the biochemical composition of sea ice microalgal communities, highlighting the need for further research to understand the synergistic effects of multiple environmental stressors. The importance of sea ice microalgae as primary producers in polar marine ecosystems means that ongoing research into climate-change driven macromolecular phenotyping is critical to understanding the implications for the regions biochemical cycling and carbon transfer.
dc.language	en
dc.publisher	MDPI AG
dc.relation.ispartof	Geosciences (Switzerland)
dc.relation.isbasedon	10.3390/geosciences12010038
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0403 Geology, 0907 Environmental Engineering, 0909 Geomatic Engineering
dc.title	Biomolecular Composition of Sea Ice Microalgae and Its Influence on Marine Biogeochemical Cycling and Carbon Transfer through Polar Marine Food Webs
dc.type	Journal Article
utslib.citation.volume	12
utslib.for	0403 Geology
utslib.for	0907 Environmental Engineering
utslib.for	0909 Geomatic Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	open_access	*
dc.date.updated	2022-03-18T04:57:07Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	12
utslib.citation.issue	1

Abstract:

Microalgae growing on the underside of sea ice are key primary producers in polar marine environments. Their nutritional status, determined by their macromolecular composition, contributes to the region’s biochemistry and the unique temporal and spatial characteristics of their growth makes them essential for sustaining polar marine food webs. Here, we review the plasticity and taxonomic diversity of sea ice microalgae macromolecular composition, with a focus on how different environmental conditions influence macromolecular production and partitioning within cells and communities. The advantages and disadvantages of methodologies for assessing macromolecular composition are presented, including techniques that provide high throughput, whole macromolecu-lar profile and/or species-specific resolution, which are particularly recommended for future studies. The directions of environmentally driven macromolecular changes are discussed, alongside antici-pated consequences on nutrients supplied to the polar marine ecosystem. Given that polar regions are facing accelerated rates of environmental change, it is argued that a climate change signature will become evident in the biochemical composition of sea ice microalgal communities, highlighting the need for further research to understand the synergistic effects of multiple environmental stressors. The importance of sea ice microalgae as primary producers in polar marine ecosystems means that ongoing research into climate-change driven macromolecular phenotyping is critical to understanding the implications for the regions biochemical cycling and carbon transfer.

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http://hdl.handle.net/10453/155343