Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of California
Dust provides an ecologically significant input of nutrients, especially in slowly eroding ecosystems where chemical weathering intensity limits nutrient inputs from underlying bedrock. In addition to nutrient inputs, incoming dust is a vector for dispersing dust-associated microorganisms. While lit...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-06-01
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| Series: | Frontiers in Microbiology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2022.856454/full |
| _version_ | 1811237107009585152 |
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| author | Mia R. Maltz Mia R. Maltz Mia R. Maltz Mia R. Maltz Chelsea J. Carey Chelsea J. Carey Hannah L. Freund Jon K. Botthoff Stephen C. Hart Stephen C. Hart Jason E. Stajich Jason E. Stajich Sarah M. Aarons Sarah M. Aciego Sarah M. Aciego Molly Blakowski Nicholas C. Dove Nicholas C. Dove Nicholas C. Dove Morgan E. Barnes Morgan E. Barnes Morgan E. Barnes Nuttapon Pombubpa Emma L. Aronson Emma L. Aronson Emma L. Aronson |
| author_facet | Mia R. Maltz Mia R. Maltz Mia R. Maltz Mia R. Maltz Chelsea J. Carey Chelsea J. Carey Hannah L. Freund Jon K. Botthoff Stephen C. Hart Stephen C. Hart Jason E. Stajich Jason E. Stajich Sarah M. Aarons Sarah M. Aciego Sarah M. Aciego Molly Blakowski Nicholas C. Dove Nicholas C. Dove Nicholas C. Dove Morgan E. Barnes Morgan E. Barnes Morgan E. Barnes Nuttapon Pombubpa Emma L. Aronson Emma L. Aronson Emma L. Aronson |
| author_sort | Mia R. Maltz |
| collection | DOAJ |
| description | Dust provides an ecologically significant input of nutrients, especially in slowly eroding ecosystems where chemical weathering intensity limits nutrient inputs from underlying bedrock. In addition to nutrient inputs, incoming dust is a vector for dispersing dust-associated microorganisms. While little is known about dust-microbial dispersal, dust deposits may have transformative effects on ecosystems far from where the dust was emitted. Using molecular analyses, we examined spatiotemporal variation in incoming dust microbiomes along an elevational gradient within the Sierra Nevada of California. We sampled throughout two dry seasons and found that dust microbiomes differed by elevation across two summer dry seasons (2014 and 2015), which corresponded to competing droughts in dust source areas. Dust microbial taxa richness decreased with elevation and was inversely proportional to dust heterogeneity. Likewise, dust phosphorus content increased with elevation. At lower elevations, early season dust microbiomes were more diverse than those found later in the year. The relative abundances of microbial groups shifted during the summer dry season. Furthermore, mutualistic fungal diversity increased with elevation, which may have corresponded with the biogeography of their plant hosts. Although dust fungal pathogen diversity was equivalent across elevations, elevation and sampling month interactions for the relative abundance, diversity, and richness of fungal pathogens suggest that these pathogens differed temporally across elevations, with potential implications for humans and wildlife. This study shows that landscape topography and droughts in source locations may alter the composition and diversity of ecologically relevant dust-associated microorganisms. |
| first_indexed | 2024-04-12T12:19:19Z |
| format | Article |
| id | doaj.art-c582819c0b114e73b69a31e4eab99d3a |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-04-12T12:19:19Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-c582819c0b114e73b69a31e4eab99d3a2022-12-22T03:33:20ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2022-06-011310.3389/fmicb.2022.856454856454Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of CaliforniaMia R. Maltz0Mia R. Maltz1Mia R. Maltz2Mia R. Maltz3Chelsea J. Carey4Chelsea J. Carey5Hannah L. Freund6Jon K. Botthoff7Stephen C. Hart8Stephen C. Hart9Jason E. Stajich10Jason E. Stajich11Sarah M. Aarons12Sarah M. Aciego13Sarah M. Aciego14Molly Blakowski15Nicholas C. Dove16Nicholas C. Dove17Nicholas C. Dove18Morgan E. Barnes19Morgan E. Barnes20Morgan E. Barnes21Nuttapon Pombubpa22Emma L. Aronson23Emma L. Aronson24Emma L. Aronson25Division of Biomedical Sciences, University of California, Riverside, Riverside, CA, United StatesDepartment of Microbiology and Plant Pathology, University of California, Riverside, Riverside, CA, United StatesCenter for Conservation Biology, University of California, Riverside, Riverside, CA, United StatesBREATHE Center, University of California, Riverside, Riverside, CA, United StatesPoint Blue Conservation Sciences, Petaluma, CA, United StatesGenetics, Genomics, and Bioinformatics Program, University of California, Riverside, Riverside, CA, United StatesGenetics, Genomics, and Bioinformatics Program, University of California, Riverside, Riverside, CA, United StatesCenter for Conservation Biology, University of California, Riverside, Riverside, CA, United StatesSierra Nevada Research Institute, University of California, Merced, Merced, CA, United StatesDepartment of Life and Environmental Sciences, University of California, Merced, Merced, CA, United StatesDepartment of Microbiology and Plant Pathology, University of California, Riverside, Riverside, CA, United StatesGenetics, Genomics, and Bioinformatics Program, University of California, Riverside, Riverside, CA, United StatesScripps Institution of Oceanography, University of California, San Diego, San Diego, CA, United States0Department of Geology and Geophysics, University of Wyoming, Laramie, WY, United States1Noctilucent Aviation, Bridgeport, TX, United States2Department of Watershed Science, Utah State University, Logan, UT, United StatesSierra Nevada Research Institute, University of California, Merced, Merced, CA, United States3Environmental Systems Graduate Group, University of California, Merced, Merced, CA, United States4Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United StatesSierra Nevada Research Institute, University of California, Merced, Merced, CA, United States3Environmental Systems Graduate Group, University of California, Merced, Merced, CA, United States5Pacific Northwest National Laboratory, Biological Sciences, Richland, WA, United States6Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, ThailandDepartment of Microbiology and Plant Pathology, University of California, Riverside, Riverside, CA, United StatesCenter for Conservation Biology, University of California, Riverside, Riverside, CA, United StatesBREATHE Center, University of California, Riverside, Riverside, CA, United StatesDust provides an ecologically significant input of nutrients, especially in slowly eroding ecosystems where chemical weathering intensity limits nutrient inputs from underlying bedrock. In addition to nutrient inputs, incoming dust is a vector for dispersing dust-associated microorganisms. While little is known about dust-microbial dispersal, dust deposits may have transformative effects on ecosystems far from where the dust was emitted. Using molecular analyses, we examined spatiotemporal variation in incoming dust microbiomes along an elevational gradient within the Sierra Nevada of California. We sampled throughout two dry seasons and found that dust microbiomes differed by elevation across two summer dry seasons (2014 and 2015), which corresponded to competing droughts in dust source areas. Dust microbial taxa richness decreased with elevation and was inversely proportional to dust heterogeneity. Likewise, dust phosphorus content increased with elevation. At lower elevations, early season dust microbiomes were more diverse than those found later in the year. The relative abundances of microbial groups shifted during the summer dry season. Furthermore, mutualistic fungal diversity increased with elevation, which may have corresponded with the biogeography of their plant hosts. Although dust fungal pathogen diversity was equivalent across elevations, elevation and sampling month interactions for the relative abundance, diversity, and richness of fungal pathogens suggest that these pathogens differed temporally across elevations, with potential implications for humans and wildlife. This study shows that landscape topography and droughts in source locations may alter the composition and diversity of ecologically relevant dust-associated microorganisms.https://www.frontiersin.org/articles/10.3389/fmicb.2022.856454/fullaeolian processesAsian desertbacteriabiogeochemistrydispersalfungi |
| spellingShingle | Mia R. Maltz Mia R. Maltz Mia R. Maltz Mia R. Maltz Chelsea J. Carey Chelsea J. Carey Hannah L. Freund Jon K. Botthoff Stephen C. Hart Stephen C. Hart Jason E. Stajich Jason E. Stajich Sarah M. Aarons Sarah M. Aciego Sarah M. Aciego Molly Blakowski Nicholas C. Dove Nicholas C. Dove Nicholas C. Dove Morgan E. Barnes Morgan E. Barnes Morgan E. Barnes Nuttapon Pombubpa Emma L. Aronson Emma L. Aronson Emma L. Aronson Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of California Frontiers in Microbiology aeolian processes Asian desert bacteria biogeochemistry dispersal fungi |
| title | Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of California |
| title_full | Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of California |
| title_fullStr | Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of California |
| title_full_unstemmed | Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of California |
| title_short | Landscape Topography and Regional Drought Alters Dust Microbiomes in the Sierra Nevada of California |
| title_sort | landscape topography and regional drought alters dust microbiomes in the sierra nevada of california |
| topic | aeolian processes Asian desert bacteria biogeochemistry dispersal fungi |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2022.856454/full |
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