Metabolome-mediated biocryomorphic evolution promotes carbon fixation in Greenlandic cryoconite holes

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Metabolome-mediated biocryomorphic evolution promotes carbon fixation in Greenlandic cryoconite holes. / Cook, J. M.; Edwards, A.; Bulling, M.; Mur, L. A. J.; Cook, S.; Gokul, J. K.; Cameron, K. A.; Sweet, M.; Irvine-Fynn, T. D. L.

In: Environmental Microbiology, Vol. 18, No. 12, 23.06.2016, p. 4674-4686.

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Harvard

Cook, JM, Edwards, A, Bulling, M, Mur, LAJ, Cook, S, Gokul, JK, Cameron, KA, Sweet, M & Irvine-Fynn, TDL 2016, 'Metabolome-mediated biocryomorphic evolution promotes carbon fixation in Greenlandic cryoconite holes', Environmental Microbiology, vol. 18, no. 12, pp. 4674-4686. https://doi.org/10.1111/1462-2920.13349

APA

Cook, J. M., Edwards, A., Bulling, M., Mur, L. A. J., Cook, S., Gokul, J. K., Cameron, K. A., Sweet, M., & Irvine-Fynn, T. D. L. (2016). Metabolome-mediated biocryomorphic evolution promotes carbon fixation in Greenlandic cryoconite holes. Environmental Microbiology, 18(12), 4674-4686. https://doi.org/10.1111/1462-2920.13349

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Author

Cook, J. M. ; Edwards, A. ; Bulling, M. ; Mur, L. A. J. ; Cook, S. ; Gokul, J. K. ; Cameron, K. A. ; Sweet, M. ; Irvine-Fynn, T. D. L. / Metabolome-mediated biocryomorphic evolution promotes carbon fixation in Greenlandic cryoconite holes. In: Environmental Microbiology. 2016 ; Vol. 18, No. 12. pp. 4674-4686.

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@article{2caba86d45d94cd7a5c601e935e4668f,
title = "Metabolome-mediated biocryomorphic evolution promotes carbon fixation in Greenlandic cryoconite holes",
abstract = "Microbial photoautotrophs on glaciers engineer the formation of granular microbial-mineral aggregates termed cryoconite which accelerate ice melt, creating quasi-cylindrical pits called 'cryoconite holes'. These act as biogeochemical reactors on the ice surface and provide habitats for remarkably active and diverse microbiota. Evolution of cryoconite holes towards an equilibrium depth is well known, yet interactions between microbial activity and hole morphology are currently weakly addressed. Here, we experimentally perturbed the depths and diameters of cryoconite holes on the Greenland Ice Sheet. Cryoconite holes responded by sensitively adjusting their shapes in three dimensions ('biocryomorphic evolution') thus maintaining favourable conditions for net autotrophy at the hole floors. Non-targeted metabolomics reveals concomitant shifts in cyclic AMP and fucose metabolism consistent with phototaxis and extracellular polymer synthesis indicating metabolomic-level granular changes in response to perturbation. We present a conceptual model explaining this process and suggest that it results in remarkably robust net autotrophy on the Greenland ice sheet. We also describe observations of cryoconite migrating away from shade, implying a degree of self-regulation of carbon budgets over mesoscales. Since cryoconite is a microbe-mineral aggregate, it appears that microbial processes themselves form and maintain stable autotrophic habitats on the surface of the Greenland ice sheet.This article is protected by copyright. All rights reserved.",
keywords = "metabolonics, Greenland, cryoconite, autotrophy, biocryomorphic evolution",
author = "Cook, {J. M.} and A. Edwards and M. Bulling and Mur, {L. A. J.} and S. Cook and Gokul, {J. K.} and Cameron, {K. A.} and M. Sweet and Irvine-Fynn, {T. D. L.}",
note = "This is the author accepted manuscript. The final version is available from Wiley via http://dx.doi.org/10.1111/1462-2920.13349",
year = "2016",
month = jun,
day = "23",
doi = "10.1111/1462-2920.13349",
language = "English",
volume = "18",
pages = "4674--4686",
journal = "Environmental Microbiology",
issn = "1462-2912",
publisher = "Wiley",
number = "12",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Metabolome-mediated biocryomorphic evolution promotes carbon fixation in Greenlandic cryoconite holes

AU - Cook, J. M.

AU - Edwards, A.

AU - Bulling, M.

AU - Mur, L. A. J.

AU - Cook, S.

AU - Gokul, J. K.

AU - Cameron, K. A.

AU - Sweet, M.

AU - Irvine-Fynn, T. D. L.

N1 - This is the author accepted manuscript. The final version is available from Wiley via http://dx.doi.org/10.1111/1462-2920.13349

PY - 2016/6/23

Y1 - 2016/6/23

N2 - Microbial photoautotrophs on glaciers engineer the formation of granular microbial-mineral aggregates termed cryoconite which accelerate ice melt, creating quasi-cylindrical pits called 'cryoconite holes'. These act as biogeochemical reactors on the ice surface and provide habitats for remarkably active and diverse microbiota. Evolution of cryoconite holes towards an equilibrium depth is well known, yet interactions between microbial activity and hole morphology are currently weakly addressed. Here, we experimentally perturbed the depths and diameters of cryoconite holes on the Greenland Ice Sheet. Cryoconite holes responded by sensitively adjusting their shapes in three dimensions ('biocryomorphic evolution') thus maintaining favourable conditions for net autotrophy at the hole floors. Non-targeted metabolomics reveals concomitant shifts in cyclic AMP and fucose metabolism consistent with phototaxis and extracellular polymer synthesis indicating metabolomic-level granular changes in response to perturbation. We present a conceptual model explaining this process and suggest that it results in remarkably robust net autotrophy on the Greenland ice sheet. We also describe observations of cryoconite migrating away from shade, implying a degree of self-regulation of carbon budgets over mesoscales. Since cryoconite is a microbe-mineral aggregate, it appears that microbial processes themselves form and maintain stable autotrophic habitats on the surface of the Greenland ice sheet.This article is protected by copyright. All rights reserved.

AB - Microbial photoautotrophs on glaciers engineer the formation of granular microbial-mineral aggregates termed cryoconite which accelerate ice melt, creating quasi-cylindrical pits called 'cryoconite holes'. These act as biogeochemical reactors on the ice surface and provide habitats for remarkably active and diverse microbiota. Evolution of cryoconite holes towards an equilibrium depth is well known, yet interactions between microbial activity and hole morphology are currently weakly addressed. Here, we experimentally perturbed the depths and diameters of cryoconite holes on the Greenland Ice Sheet. Cryoconite holes responded by sensitively adjusting their shapes in three dimensions ('biocryomorphic evolution') thus maintaining favourable conditions for net autotrophy at the hole floors. Non-targeted metabolomics reveals concomitant shifts in cyclic AMP and fucose metabolism consistent with phototaxis and extracellular polymer synthesis indicating metabolomic-level granular changes in response to perturbation. We present a conceptual model explaining this process and suggest that it results in remarkably robust net autotrophy on the Greenland ice sheet. We also describe observations of cryoconite migrating away from shade, implying a degree of self-regulation of carbon budgets over mesoscales. Since cryoconite is a microbe-mineral aggregate, it appears that microbial processes themselves form and maintain stable autotrophic habitats on the surface of the Greenland ice sheet.This article is protected by copyright. All rights reserved.

KW - metabolonics

KW - Greenland

KW - cryoconite

KW - autotrophy

KW - biocryomorphic evolution

UR - http://hdl.handle.net/2160/43949

UR - https://sfamjournals.onlinelibrary.wiley.com/doi/full/10.1111/1462-2920.13349#support-information-section

U2 - 10.1111/1462-2920.13349

DO - 10.1111/1462-2920.13349

M3 - Article

C2 - 27113725

VL - 18

SP - 4674

EP - 4686

JO - Environmental Microbiology

JF - Environmental Microbiology

SN - 1462-2912

IS - 12

ER -

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