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Title: Metabolic Profiling Reveals Biochemical Pathways Responsible for Eelgrass Response to Elevated CO2 and Temperature

Abstract

Abstract As CO 2 levels in Earth’s atmosphere and oceans steadily rise, varying organismal responses may produce ecological losers and winners. Increased ocean CO 2 can enhance seagrass productivity and thermal tolerance, providing some compensation for climate warming. However, the metabolic shifts driving the positive response to elevated CO 2 by these important ecosystem engineers remain unknown. We analyzed whole-plant performance and metabolic profiles of two geographically distinct eelgrass ( Zostera marina L.) populations in response to CO 2 enrichment. In addition to enhancing overall plant size, growth and survival, CO 2 enrichment increased the abundance of Calvin Cycle and nitrogen assimilation metabolites while suppressing the abundance of stress-related metabolites. Overall metabolome differences between populations suggest that some eelgrass phenotypes may be better suited than others to cope with an increasingly hot and sour sea. Our results suggest that seagrass populations will respond variably, but overall positively, to increasing CO 2 concentrations, generating negative feedbacks to climate change.

Authors:
; ; ORCiD logo; ORCiD logo;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Science Foundation (NSF)
OSTI Identifier:
1619809
Alternate Identifier(s):
OSTI ID: 1607638
Report Number(s):
PNNL-SA-142954
Journal ID: ISSN 2045-2322; 4693; PII: 61684
Grant/Contract Number:  
AC05-76RL01830; OCE-1061823; OCE-1635403
Resource Type:
Published Article
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Name: Scientific Reports Journal Volume: 10 Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United Kingdom
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; aquatic; biogeochemistry; biology; blue carbon; biomarker; carbon cycling; carbon dioxide; climate change; ecosystem; eelgrass; estuarine; global change; greenhouse gas; interface; metabalomic; metabolism; metabolite; ocean acidification; Photosynthesis; seagrass; sea level rise; terrestial aquatic interface; tidal; vegetation; climate-change ecology; environmental impact; plant molecular biology

Citation Formats

Zayas-Santiago, Carmen C., Rivas-Ubach, Albert, Kuo, Li-Jung, Ward, Nicholas D., and Zimmerman, Richard C. Metabolic Profiling Reveals Biochemical Pathways Responsible for Eelgrass Response to Elevated CO2 and Temperature. United Kingdom: N. p., 2020. Web. https://doi.org/10.1038/s41598-020-61684-x.
Zayas-Santiago, Carmen C., Rivas-Ubach, Albert, Kuo, Li-Jung, Ward, Nicholas D., & Zimmerman, Richard C. Metabolic Profiling Reveals Biochemical Pathways Responsible for Eelgrass Response to Elevated CO2 and Temperature. United Kingdom. https://doi.org/10.1038/s41598-020-61684-x
Zayas-Santiago, Carmen C., Rivas-Ubach, Albert, Kuo, Li-Jung, Ward, Nicholas D., and Zimmerman, Richard C. Fri . "Metabolic Profiling Reveals Biochemical Pathways Responsible for Eelgrass Response to Elevated CO2 and Temperature". United Kingdom. https://doi.org/10.1038/s41598-020-61684-x.
@article{osti_1619809,
title = {Metabolic Profiling Reveals Biochemical Pathways Responsible for Eelgrass Response to Elevated CO2 and Temperature},
author = {Zayas-Santiago, Carmen C. and Rivas-Ubach, Albert and Kuo, Li-Jung and Ward, Nicholas D. and Zimmerman, Richard C.},
abstractNote = {Abstract As CO 2 levels in Earth’s atmosphere and oceans steadily rise, varying organismal responses may produce ecological losers and winners. Increased ocean CO 2 can enhance seagrass productivity and thermal tolerance, providing some compensation for climate warming. However, the metabolic shifts driving the positive response to elevated CO 2 by these important ecosystem engineers remain unknown. We analyzed whole-plant performance and metabolic profiles of two geographically distinct eelgrass ( Zostera marina L.) populations in response to CO 2 enrichment. In addition to enhancing overall plant size, growth and survival, CO 2 enrichment increased the abundance of Calvin Cycle and nitrogen assimilation metabolites while suppressing the abundance of stress-related metabolites. Overall metabolome differences between populations suggest that some eelgrass phenotypes may be better suited than others to cope with an increasingly hot and sour sea. Our results suggest that seagrass populations will respond variably, but overall positively, to increasing CO 2 concentrations, generating negative feedbacks to climate change.},
doi = {10.1038/s41598-020-61684-x},
journal = {Scientific Reports},
number = 1,
volume = 10,
place = {United Kingdom},
year = {2020},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1038/s41598-020-61684-x

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