Revealing the transfer pathways of cyanobacterial-fixed N into the boreal forest through the feather-moss microbiome

Maria Arroniz-Crespo; Jeremy Bougoure; Daniel Murphy; Nick A. Cutler; Virginia Souza-Egipsy; Dominique L. Chaput; Davey L. Jones; Nicholas Ostle; Stephen C. Wade; Peta L. Clode; Thomas H. DeLuca

doi:10.3389/fpls.2022.1036258

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Revealing the transfer pathways of cyanobacterial-fixed N into the boreal forest through the feather-moss microbiome

Journal article

Open access

Peer reviewed

Revealing the transfer pathways of cyanobacterial-fixed N into the boreal forest through the feather-moss microbiome

Maria Arroniz-Crespo, Jeremy Bougoure, Daniel Murphy, Nick A. Cutler, Virginia Souza-Egipsy, Dominique L. Chaput, Davey L. Jones, Nicholas Ostle, Stephen C. Wade, Peta L. Clode, …

Frontiers in plant science, Vol.13, 1036258

2022

DOI: https://doi.org/10.3389/fpls.2022.1036258

PMID: 36570951

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Abstract

Life Sciences & Biomedicine

Plant Sciences

Science & Technology

Introduction: Biological N-2 fixation in feather-mosses is one of the largest inputs of new nitrogen (N) to boreal forest ecosystems; however, revealing the fate of newly fixed N within the bryosphere (i.e. bryophytes and their associated organisms) remains uncertain. Methods: Herein, we combined N-15 tracers, high resolution secondary ion mass-spectrometry (NanoSIMS) and a molecular survey of bacterial, fungal and diazotrophic communities, to determine the origin and transfer pathways of newly fixed N-2 within feather-moss (Pleurozium schreberi) and its associated microbiome. Results: NanoSIMS images reveal that newly fixed N-2, derived from cyanobacteria, is incorporated into moss tissues and associated bacteria, fungi and micro-algae. Discussion: These images demonstrate that previous assumptions that newly fixed N-2 is sequestered into moss tissue and only released by decomposition are not correct. We provide the first empirical evidence of new pathways for N-2 fixed in feather-mosses to enter the boreal forest ecosystem (i.e. through its microbiome) and discuss the implications for wider ecosystem function.

Details

Title: Revealing the transfer pathways of cyanobacterial-fixed N into the boreal forest through the feather-moss microbiome
Authors/Creators: Maria Arroniz-Crespo - Bangor University
Jeremy Bougoure - Univ Western Australia, Sch Agr & Environm, Perth, WA, Australia
Daniel Murphy - Univ Western Australia, Sch Agr & Environm, Perth, WA, Australia
Nick A. Cutler - Polar (Finland)
Virginia Souza-Egipsy - Inst Ciencias Agr CSIC, Serv Microscop Elect, Madrid, Spain
Dominique L. Chaput - University of Exeter
Davey L. Jones - Bangor University
Nicholas Ostle - Lancaster University Ghana
Stephen C. Wade - Aberystwyth University
Peta L. Clode - Univ Western Australia, Ctr Microscopy Characterisat & Anal, Perth, WA, Australia
Thomas H. DeLuca - Oregon State University
Publication Details: Frontiers in plant science, Vol.13, 1036258
Publisher: Frontiers Media SA
Number of pages: 12
Grant note: S2013/ABI2717; S2018/BAA4330 / European Structural and Investment Funds (projects AGRISOST-CM) Comunidad de Madrid (Spain); Comunidad de Madrid
Identifiers: 991005560417107891
Copyright: © 2022 Arroniz-Crespo et al.
Murdoch Affiliation: Centre for Sustainable Farming Systems
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.45 Soil Science; 3.45.915 Permafrost Carbon
Web Of Science research areas: Plant Sciences
ESI research areas: Plant & Animal Science