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1. Drought re-routes soil microbial carbon metabolism towards emission of volatile metabolites in an artificial tropical rainforest

Author

Honeker, Linnea K., Pugliese, Giovanni, Ingrisch, Johannes, Fudyma, Jane, Gil-Loaiza, Juliana, Carpenter, Elizabeth, Singer, Esther, Hildebrand, Gina, Shi, Lingling, Hoyt, David W., Chu, Rosalie K., Toyoda, Jason, Krechmer, Jordan E., Claflin, Megan S., Ayala-Ortiz, Christian, Freire-Zapata, Viviana, Pfannerstill, Eva Y., Daber, L. Erik, Meeran, Kathiravan, Dippold, Michaela A., Kreuzwieser, Jürgen, Williams, Jonathan, Ladd, S. Nemiah, Werner, Christiane, Tfaily, Malak M., and Meredith, Laura K.

Published
2023
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2. Author Correction: Drought re-routes soil microbial carbon metabolism towards emission of volatile metabolites in an artificial tropical rainforest

Author

Honeker, Linnea K., Pugliese, Giovanni, Ingrisch, Johannes, Fudyma, Jane, Gil-Loaiza, Juliana, Carpenter, Elizabeth, Singer, Esther, Hildebrand, Gina, Shi, Lingling, Hoyt, David W., Chu, Rosalie K., Toyoda, Jason, Krechmer, Jordan E., Claflin, Megan S., Ayala-Ortiz, Christian, Freire-Zapata, Viviana, Pfannerstill, Eva Y., Daber, L. Erik, Meeran, Kathiravan, Dippold, Michaela A., Kreuzwieser, Jürgen, Williams, Jonathan, Ladd, S. Nemiah, Werner, Christiane, Tfaily, Malak M., and Meredith, Laura K.

Published
2024
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5. Uncovering the dominant role of root metabolism in shaping rhizosphere metabolome under drought in tropical rainforest plants

Author

Hildebrand, Gina A., Honeker, Linnea K., Freire-Zapata, Viviana, Ayala-Ortiz, Christian, Rajakaruna, Sumudu, Fudyma, Jane, Daber, L. Erik, AminiTabrizi, Roya, Chu, Rosalie L., Toyoda, Jason, Flowers, Sarah E., Hoyt, David W., Hamdan, Rasha, Gil-Loaiza, Juliana, Shi, Lingling, Dippold, Michaela A., Ladd, S. Nemiah, Werner, Christiane, Meredith, Laura K., and Tfaily, Malak M.

Published
2023
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8. Author Correction: Drought re-routes soil microbial carbon metabolism towards emission of volatile metabolites in an artificial tropical rainforest

Author

Honeker, Linnea K., primary, Pugliese, Giovanni, additional, Ingrisch, Johannes, additional, Fudyma, Jane, additional, Gil-Loaiza, Juliana, additional, Carpenter, Elizabeth, additional, Singer, Esther, additional, Hildebrand, Gina, additional, Shi, Lingling, additional, Hoyt, David W., additional, Chu, Rosalie K., additional, Toyoda, Jason, additional, Krechmer, Jordan E., additional, Claflin, Megan S., additional, Ayala-Ortiz, Christian, additional, Freire-Zapata, Viviana, additional, Pfannerstill, Eva Y., additional, Daber, L. Erik, additional, Meeran, Kathiravan, additional, Dippold, Michaela A., additional, Kreuzwieser, Jürgen, additional, Williams, Jonathan, additional, Ladd, S. Nemiah, additional, Werner, Christiane, additional, Tfaily, Malak M., additional, and Meredith, Laura K., additional

Published
2023
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10. The effect of prolonged drought and recovery on soil VOC fluxes in an experimental rainforest

Author

Pugliese, Giovanni, primary, Ingrisch, Johannes, additional, Meredith, Laura K., additional, Pfannerstill, Eva Y., additional, Klüpfel, Thomas, additional, Meeran, Kathiravan, additional, Byron, Joseph, additional, Purser, Gemma, additional, Gil-Loaiza, Juliana, additional, Haren, Joost van, additional, Kreuzwieser, Juergen, additional, Ladd, S. Nemiah, additional, Werner, Christiane, additional, and Williams, Jonathan, additional

Published
2022
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11. Drought induces soil microbial stress responses and emissions of volatile organic compounds in an artificial tropical rainforest

Author

Honeker, Linnea, primary, Pugliese, Giovanni, additional, Ingrisch, Johannes, additional, Fudyma, Jane, additional, Gil-Loaiza, Juliana, additional, Carpenter, Elizabeth, additional, Singer, Esther, additional, Hildebrand, Gina, additional, Shi, Lingling, additional, Hoyt, David, additional, Krechmer, Jordan, additional, Claflin, Megan, additional, Ayala-Ortiz, Christian, additional, Freire-Zapata, Viviana, additional, Pfannerstill, Eva, additional, Daber, L., additional, Dippold, Michaela, additional, Kreuzwieser, Jürgen, additional, Williams, Jonathan, additional, Ladd, S., additional, Werner, Christiane, additional, Tfaily, Malak, additional, and Meredith, Laura, additional

Published
2022
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13. Elucidating Drought-Tolerance Mechanisms in Plant Roots through 1H NMR Metabolomics in Parallel with MALDI-MS, and NanoSIMS Imaging Techniques

Author

Honeker, Linnea K., primary, Hildebrand, Gina A., additional, Fudyma, Jane D., additional, Daber, L. Erik, additional, Hoyt, David, additional, Flowers, Sarah E., additional, Gil-Loaiza, Juliana, additional, Kübert, Angelika, additional, Bamberger, Ines, additional, Anderton, Christopher R., additional, Cliff, John, additional, Leichty, Sarah, additional, AminiTabrizi, Roya, additional, Kreuzwieser, Jürgen, additional, Shi, Lingling, additional, Bai, Xuejuan, additional, Velickovic, Dusan, additional, Dippold, Michaela A., additional, Ladd, S. Nemiah, additional, Werner, Christiane, additional, Meredith, Laura K., additional, and Tfaily, Malak M., additional

Published
2022
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15. Effect of drought on soil microbial metabolisms driving carbon allocation and volatile organic compound cycling in the tropical rainforest at Biosphere 2

Author

Honeker, Linnea, primary, Pugliese, Giovanni, additional, Ingrisch, Johannes, additional, Fudyma, Jane, additional, Gil-Loaiza, Juliana, additional, Carpenter, Elizabeth, additional, Singer, Esther, additional, Hildebrand, Gina, additional, Shi, Lingling, additional, Daber, Lars Erik, additional, Dippold, Michaela, additional, Kreuzwieser, Jürgen, additional, Ladd, S., additional, Werner, Christiane, additional, Tfaily, Malak, additional, and Meredith, Laura, additional

Published
2022
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16. Ecosystem fluxes during drought and recovery in an experimental forest

Author

Werner, Christiane, primary, Meredith, Laura K., additional, Ladd, S. Nemiah, additional, Ingrisch, Johannes, additional, Kübert, Angelika, additional, van Haren, Joost, additional, Bahn, Michael, additional, Bailey, Kinzie, additional, Bamberger, Ines, additional, Beyer, Matthias, additional, Blomdahl, Daniel, additional, Byron, Joseph, additional, Daber, Erik, additional, Deleeuw, Jason, additional, Dippold, Michaela A., additional, Fudyma, Jane, additional, Gil-Loaiza, Juliana, additional, Honeker, Linnea K., additional, Hu, Jia, additional, Huang, Jianbei, additional, Klüpfel, Thomas, additional, Krechmer, Jordan, additional, Kreuzwieser, Jürgen, additional, Kühnhammer, Kathrin, additional, Lehmann, Marco M., additional, Meeran, Kathiravan, additional, Misztal, Pawel K., additional, Ng, Wei-Ren, additional, Pfannerstill, Eva, additional, Pugliese, Giovanni, additional, Purser, Gemma, additional, Roscioli, Joseph, additional, Shi, Lingling, additional, Tfaily, Malak, additional, and Williams, Jonathan, additional

Published
2021
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18. Ecosystem fluxes during drought and recovery in an experimental forest

Author

Werner, Christiane, Meredith, Laura K., Ladd, S. Nemiah, Ingrisch, Johannes, Kübert, Angelika, van Haren, Joost, Bahn, Michael, Bailey, Kinzie, Bamberger, Ines, Beyer, Matthias, Blomdahl, Daniel, Byron, Joseph, Daber, Erik, Deleeuw, Jason, Dippold, Michaela A., Fudyma, Jane, Gil-Loaiza, Juliana, Honeker, Linnea K., Hu, Jia, Huang, Jianbei, Klüpfel, Thomas, Krechmer, Jordan, Kreuzwieser, Jürgen, Kühnhammer, Kathrin, Lehmann, Marco M., Meeran, Kathiravan, Misztal, Pawel K., Ng, Wei-Ren, Pfannerstill, Eva, Pugliese, Giovanni, Purser, Gemma, Roscioli, Joseph, Shi, Lingling, Tfaily, Malak, Williams, Jonathan, Werner, Christiane, Meredith, Laura K., Ladd, S. Nemiah, Ingrisch, Johannes, Kübert, Angelika, van Haren, Joost, Bahn, Michael, Bailey, Kinzie, Bamberger, Ines, Beyer, Matthias, Blomdahl, Daniel, Byron, Joseph, Daber, Erik, Deleeuw, Jason, Dippold, Michaela A., Fudyma, Jane, Gil-Loaiza, Juliana, Honeker, Linnea K., Hu, Jia, Huang, Jianbei, Klüpfel, Thomas, Krechmer, Jordan, Kreuzwieser, Jürgen, Kühnhammer, Kathrin, Lehmann, Marco M., Meeran, Kathiravan, Misztal, Pawel K., Ng, Wei-Ren, Pfannerstill, Eva, Pugliese, Giovanni, Purser, Gemma, Roscioli, Joseph, Shi, Lingling, Tfaily, Malak, and Williams, Jonathan

Abstract

Severe droughts endanger ecosystem functioning worldwide. We investigated how drought affects carbon and water fluxes as well as soil-plant-atmosphere interactions by tracing 13CO2 and deep water 2H2O label pulses and volatile organic compounds (VOCs) in an enclosed experimental rainforest. Ecosystem dynamics were driven by different plant functional group responses to drought. Drought-sensitive canopy trees dominated total fluxes but also exhibited the strongest response to topsoil drying. Although all canopy-forming trees had access to deep water, these reserves were spared until late in the drought. Belowground carbon transport was slowed, yet allocation of fresh carbon to VOCs remained high. Atmospheric VOC composition reflected increasing stress responses and dynamic soil-plant-atmosphere interactions, potentially affecting atmospheric chemistry and climate feedbacks. These interactions and distinct functional group strategies thus modulate drought impacts and ecosystem susceptibility to climate change.

Published
2021

20. Effects of drought conditions on VOC soil fluxes within the rainforest mesocosm of Biosphere 2

Author

Pugliese, Giovanni, primary, Ingrisch, Johannes, additional, Klüpfel, Thomas, additional, Meeran, Kathiravan, additional, Purser, Gemma, additional, Gil Loaiza, Juliana, additional, van Haren, Joost, additional, Kreuzwieser, Jürgen, additional, Ladd, Nemiah, additional, Meredith, Laura, additional, Werner, Christiane, additional, and Williams, Jonathan, additional

Published
2021
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23. Elucidating Drought-Tolerance Mechanisms in Plant Roots through ¹H NMR Metabolomics in Parallel with MALDI-MS, and NanoSIMS Imaging Techniques.

Author

Honeker, Linnea K., Hildebrand, Gina A., Fudyma, Jane D., Daber, L. Erik, Hoyt, David, Flowers, Sarah E., Gil-Loaiza, Juliana, Kübert, Angelika, Bamberger, Ines, Anderton, Christopher R., Cliff, John, Leichty, Sarah, AminiTabrizi, Roya, Kreuzwieser, Jürgen, LinglingShi, Xuejuan Bai, Velickovic, Dusan, Dippold, Michaela A., Ladd, S. Nemiah, and Werner, Christiane

Published
2022
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30. Integrating soil genomics into the study of biosphere-atmosphere trace gas fluxes

Author

Meredith, Laura K. Meredith, Gil-Loaiza, Juliana, Roscioli, Joseph R., Wingate, Lisa, ProdInra, Migration, University of Arizona, Aerodyne Research Inc., Interactions Sol Plante Atmosphère (UMR ISPA), and Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio]
Abstract

International audience; Microorganisms play a significant role in shaping the composition of Earth’s atmosphere. Soils host rich microbial communities whose biogeochemical processes have both leading-order impacts on climate variability and susceptibility to global change feedbacks. Yet, the microbial actors and genetic diversity driving trace gas cycling in soils remain poorly understood, challenging attempts to model microbial contributions to biosphere-atmosphere interactions. New methods for integrating soil genomics into the study of biosphere-atmosphere trace gas fluxes are needed. Here, we present our approach for uncovering the genetic underpinnings of the microbe-mediated biogeochemical transformations in soils that drive significant trace gas fluxes. In past work, we constrained soil microbial contributions to biosphere-atmosphere exchange of carbonyl sulfide (COS or OCS)—a promising photosynthetic tracer—through controlled laboratory studies. This approach revealed microbial groups and types of carbonic anhydrase enzymes driving COS consumption by soil microbes,1 and identified coupled biological-abiotic processes driving soil COS emissions2, helping to build genome-informed constraints to biosphere-atmosphere interactions. We will present current efforts to extend this approach to constrain microbial contributions to trace gas fluxes in the Biosphere 2 tropical rainforest. We use the experimental ecosystem to control environmental drivers and amplify biosphere-atmosphere interaction within the enclosed structure. Using a suite of trace gas analyzers (concentrations and isotopomers) and measurement tools (probes, chambers) in key ecosystem locations (soil, stem, leaf, atmosphere) we constrain ecosystem fluxes across drought and rewet conditions. By integrating trace gas measurements and soil genomics data, we will test current understanding of the microbial genomics behind soil N2O emissions and develop new hypotheses regarding microbes and pathways driving soil VOC cycling.

Published
2019

32. Versatile soil gas concentration and isotope monitoring: optimization and integration of novel soil gas probes with online trace gas detection.

Author

Gil-Loaiza, Juliana, Roscioli, Joseph R., Shorter, Joanne H., Volkmann, Till H. M., Wei-Ren Ng, Krechmer, Jordan E., and Meredith, Laura K.

Subjects
SOIL air, TRACE gases, SOIL testing, GAS dynamics, IR spectrometers, ISOTOPES
Abstract

Gas concentrations and isotopic signatures can unveil microbial metabolisms and their responses to environmental changes in soil. Currently, few methods measure soil trace gases such as the products of nitrogen and carbon cycling, or volatile organic compounds (VOCs), that could constrain microbial biochemical processes like nitrification, methanogenesis, respiration, and microbial communication. Versatile trace gas sampling systems that integrate soil probes with sensitive trace gas analyzers could fill this gap with measurements resolving spatial (centimeter scale) and temporal (minutes) variations in concentrations and isotopic signatures of in situ soil gases. We developed a system that integrates new 15 cm long sintered PTFE diffusive soil gas probes with various infrared spectrometers and a VOC mass spectrometer. The system is based on porous and hydrophobic soil probes that non-disruptively collect and transport gas from multiple probes to one or more central gas analyzers. Here, we demonstrate the feasibility and versatility of an automated multi-probe system for soil gas measurements of isotopic ratios of nitrous oxide (d18O, d15N, and the 15N site-preference of N2O), methane, carbon dioxide (d13C), and VOCs. First, we used an inert silica matrix to challenge probe measurements under controlled gas conditions. By changing and controlling system flow parameters, including probe flow rate, we optimized recovery of representative soil gas samples while reducing sampling artifacts on subsurface concentrations. Second, we forced environmental manipulations in soil-filled columns to demonstrate real time detection of subsurface gas dynamics in response to irrigation and soil redox conditions. In addition, we developed a new laser spectrometer to recover isotope ratios for 14N14N16O ("d446"), 14N15N16O ("d456"), 15N14N16O ("d546"), and 14N14N18O ("d448") with high precision and low concentration dependence. We captured temporal subsurface gas pulses in CO2, N2O, and VOCs. This demonstrated the potential for diffusive-based probes to couple to trace gas sensors for soil health and fertility studies, and to inform high-throughput meta-omics, leading to the development of a suite of powerful new tools for soil analysis. [ABSTRACT FROM AUTHOR]

Published
2020
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34. Establishment of a Vegetation Cover at the Iron King Mine and Humboldt Smelter Superfund Site: Evaluation of Compost-Assisted Phytostabilization

Author

Maier, Raina M., Betterton, Eric A., Brusseau, Mark L., Chorover, Jon, Gil-Loaiza, Juliana, Maier, Raina M., Betterton, Eric A., Brusseau, Mark L., Chorover, Jon, and Gil-Loaiza, Juliana

Abstract

Mine tailings pose a health risk for populations and ecosystems in the Southwest; this is why effective, and low-cost solutions for the long term are needed. This work is groundbreaking since little information is available with regards to applying greenhouse studies of phytostabilization to the field for mine tailing remediation. Mine tailings from Iron King Mine and Humboldt Smelter Superfund (IKMHSS) site can be considered one of the worst scenarios due to the extreme conditions which prevent the growth of a vegetation cap. The high concentration of metals, such as arsenic and lead, highly acidic, lack of the nutrients carbon and nitrogen in the soil structure, and low microbial communities are factors that negatively affect plant growth. This project provides practical field-scale applications for the use of phytostabilization, which uses plants to create a vegetation cap that stabilizes metals in the root zone while preventing wind and water erosion in mine tailings. The project is divided into three main studies: (1) the assessment of the translation of successful greenhouse results to the field of phytostabilization using compost-assisted direct planting. This includes the use of different rates of compost as an amendment and different desert native plant species in addition to some potential parameters that could be used as indicators of a successful modification of biochemical and physical environment from a disturbed soil towards a more healthy soil when compost assisted direct planting phytostabilization is used; (2) the second study aims to evaluate the effect of the phytostabilization strategy on reducing windborne transport of particle and metal(loids) following the establishment of the vegetation cap. The results indicate that the vegetation resulted from direct planting decreases dust emissions from IKMHSS mine tailings; and (3) the third study focuses on one of the most important requirements for phytostabilization application in the field, the perf

Published
2016

36. Key Edaphic Properties Largely Explain Temporal and Geographic Variation in Soil Microbial Communities across Four Biomes

Author

Docherty, Kathryn M., primary, Borton, Hannah M., additional, Espinosa, Noelle, additional, Gebhardt, Martha, additional, Gil-Loaiza, Juliana, additional, Gutknecht, Jessica L. M., additional, Maes, Patrick W., additional, Mott, Brendon M., additional, Parnell, John Jacob, additional, Purdy, Gayle, additional, Rodrigues, Pedro A. P., additional, Stanish, Lee F., additional, Walser, Olivia N., additional, and Gallery, Rachel E., additional

Published
2015
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