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Grace Pold

Grace Pold


I am a microbiologist and currently associate senior lecturer in Soil Nutrient Cycling. My research uses a combination of cultivation, bioinformatics, and modeling to understand connections between the carbon and nitrogen cycles.

I previously worked as a postdoc in the Soil Microbiology group where I studied the evolution and ecology of denitrifiers. Prior to that I studied the role of stoichiometric limitation on plant and soil responses to climate warming in the tundra with Seeta Sistla at Cal Poly; and evaluated the physiological responses of soil bacteria to long- and short-term warming.


During my time at SLU I have been course leader and co-developer for the PhD level course "Molecular methods in microbial ecology" in 2023 (with Karina Clemmensen), taught in the bachelor level course "Molecular and microbial ecology", supervised a group project in the masters level course "Soil biology and biogeochemical cycles", and guest lectured in the "Wonderful world of microbes" course.



Mara Alicke - Bachelor thesis (summer/autumn 2022)

Selected publications

* indicates supervised student

Pold, G., Bonilla-Rosso, G., Saghaï, A., Strous, M., Jones, C. M., & Hallin, S. (2024). Phylogenetics and environmental distribution of nitric oxide forming nitrite reductases reveals their distinct functional and ecological roles. ISME Communications, ycae020.

Saghaï, A., Pold, G., Jones, C. M., & Hallin, S. (2023). Phyloecology of nitrate ammonifiers and their importance relative to denitrifiers in global terrestrial biomes. Nature Communications, 14(1), 8249.

Domeignoz‐Horta LA, Pold G, Erb H*, Sebag D, Verrecchia E, Northern T, Louie K, Eloe‐Fadrosh E, Pennacchio C, Knorr MA, Frey SD, Melillo JM, DeAngelis KM. 2023. Substrate availability and not thermal‐acclimation controls microbial temperature sensitivity response to long term warming. Global Change Biology. 29(6), 1574-1590.

Baillargeon N*, Pold G, Natali S, Sistla S. 2022. Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure. Arctic, Antarctic and Alpine Research. 54(1), 525-536.

McKay O*, Pold G, Martin P, Sistla S. 2022. Macroplastic Fragment Contamination of Agricultural Soils Supports a Distinct Microbial Hotspot. Frontiers in Environmental Science. 10, 838455

Pold G, Kwiatkowski BL, Rastetter EB, and Sistla S. 2022. Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe–plant–soil model. Soil Biology and Biochemistry. 165, 108489.

Pold G, Baillargeon N*, Lepe A*, Rastetter E, and Sistla, S. 2021. Warming effects on arctic tundra biogeochemistry are limited but habitat-dependent: a meta-analysis. Ecosphere. 12 (10), e03777

Pold G, Domeignoz-Horta LA, DeAngelis KM. 2020. Heavy and wet: evaluating the validity and implications of assumptions made when measuring growth efficiency using 18O water. Elementa. 8 (1): 069

Domeignoz-Horta LA, Pold G, Liu XJ, Frey SD, Melillo JM, DeAngelis KM. 2020. Microbial diversity drives CUE in a model soil system. Nature Communications. (11):3684

Pold G, Sistla SA, and KM DeAngelis. 2019. Metabolic tradeoffs and heterogeneity in microbial responses to temperature determine the fate of litter carbon in a warmer world. Biogeosciences. 16, 4875–4888. (Part of PhD thesis)

Pold G, Domeignoz-Horta LA, Sistla SA, Morisson EW, Frey SD, DeAngelis KM. (2020) Carbon use efficiency and its temperature sensitivity co-vary in soil bacteria. MBio. doi: 10.1128/mBio.02293-19 (Part of PhD thesis)

Pold G, Conlon EM, Huntemann M, Pillay M, Mikhailova N, Stamatis D, T.B.K. Reddy, Daum C, Shapiro N, Kyrpides N, Woyke T, KM DeAngelis (2018). Genome sequence of Verrucomicrobium sp. strain GAS474, a novel bacterium isolated from soil. Genome Announcements. 

Melillo JM, Frey SD, DeAngelis KM, Werner WJ, Bernard MJ, Bowles FP, Pold G, Knorr MA, and AS Grandy. (2017) Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world. Science. 358(6359):01-105.

Pold G, Grandy AS, Melillo JM, and KM DeAngelis. (2017) Changes in substrate availability drive carbon cycle response to chronic warming.  Soil Biology and Biochemistry. 110 (68-78)

Pold G, Billings AF, Blanchard JL, Burkhardt DB, Frey SD, Melillo JM, Schnabel J*, van Diepen LTA and DeAngelis KM (2016) Long-term warming alters carbohydrate degradation potential in temperate forest soils. Applied and Environmental Microbiology. 82(22):6518-6530. 



Associate Senior Lecturer at the Department of Soil and Environment; Soil nutrient cycling