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Title: Bacteria increase arid-land soil surface temperature through the production of sunscreens

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms10373· OSTI ID:1255544
 [1];  [2];  [2];  [2];  [2];  [3];  [4]
  1. Arizona State Univ., Tempe, AZ (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  4. Arizona State Univ., Tempe, AZ (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Soil surface temperature, an important driver of terrestrial biogeochemical processes, depends strongly on soil albedo, which can be significantly modified by factors such as plant cover. In sparsely vegetated lands, the soil surface can be colonized by photosynthetic microbes that build biocrust communities. Here we use concurrent physical, biochemical and microbiological analyses to show that mature biocrusts can increase surface soil temperature by as much as 10 °C through the accumulation of large quantities of a secondary metabolite, the microbial sunscreen scytonemin, produced by a group of late-successional cyanobacteria. Scytonemin accumulation decreases soil albedo significantly. Such localized warming has apparent and immediate consequences for the soil microbiome, inducing the replacement of thermosensitive bacterial species with more thermotolerant forms. These results reveal that not only vegetation but also microorganisms are a factor in modifying terrestrial albedo, potentially impacting biosphere feedbacks on past and future climate, and call for a direct assessment of such effects at larger scales.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02- 05CH11231; AC02-05CH11231
OSTI ID:
1255544
Alternate ID(s):
OSTI ID: 1379041
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 126 works
Citation information provided by
Web of Science

References (39)

Quality control and preprocessing of metagenomic datasets journal January 2011
Trimmomatic: a flexible trimmer for Illumina sequence data journal April 2014
Soil Temperature and Heat Flow book January 1980
Surface Albedo and Desertification journal September 1975
Solar Ultraviolet and the Evolutionary History of Cyanobacteria journal January 1998
Temperature Drives the Continental-Scale Distribution of Key Microbes in Topsoil Communities journal June 2013
Diurnal Relationship Between the Surface Albedo and Surface Temperature in Revegetated Desert Ecosystems, Northwestern China journal January 2012
PANDAseq: paired-end assembler for illumina sequences journal January 2012
Forests and Climate Change: Forcings, Feedbacks, and the Climate Benefits of Forests journal June 2008
Surface disturbances: Their role in accelerating desertification journal January 1995
Link between microbial composition and carbon substrate-uptake preferences in a PHA-storing community journal July 2012
The role of cyanobacterial exopolysaccharides in structuring desert microbial crusts journal October 1996
Remote sensing of biological soil crust under simulated climate change manipulations in the Mojave Desert journal February 2009
Targeted and shotgun metagenomic approaches provide different descriptions of dryland soil microbial communities in a manipulated field study: Sequencing to describe dryland soil communities journal February 2012
The role of the exopolysaccharides in enhancing hydraulic conductivity of biological soil crusts journal March 2012
Response and resilience of soil biocrust bacterial communities to chronic physical disturbance in arid shrublands journal November 2011
Soil Temperature and Heat Flow book January 2003
Terrestrial Ecosystem Feedbacks to Global Climate Change journal November 1997
The climatic impact of a Sonoran vegetation discontinuity journal August 1988
Aeolian dust in Colorado Plateau soils: Nutrient inputs and recent change in source journal June 2001
The Evolution of a Capacity to Build Supra-Cellular Ropes Enabled Filamentous Cyanobacteria to Colonize Highly Erodible Substrates journal November 2009
Contribution of cryptogamic covers to the global cycles of carbon and nitrogen journal June 2012
Micrometeorological modeling to understand the thermal anomaly in the sand dunes across the Israel–Egypt border journal June 2002
Surface Roughness Effects on Soil Albedo journal January 2000
The potential roles of biological soil crusts in dryland hydrologic cycles journal January 2006
Microenvironments and Microscale Productivity of Cyanobacterial Desert Crusts1 journal October 1996
Characterization and Biological Implications of Scytonemin, a Cyanobacterial Sheath Pigment1 journal June 1991
MUST, a computer package of Management Utilities for Sequences and Trees journal January 1993
Modern Terrestrial Sedimentary Biostructures and Their Fossil Analogs in Mesoproterozoic Subaerial Deposits journal February 2014
Characterization and functional analysis of phytoene synthase gene family in tobacco journal January 2021
Examining the global distribution of dominant archaeal populations in soil journal November 2010
Ultra-high-throughput microbial community analysis on the Illumina HiSeq and MiSeq platforms journal March 2012
Dynamic cyanobacterial response to hydration and dehydration in a desert biological soil crust journal June 2013
Evaluation of vegetation cover and land-surface albedo in MPI-ESM CMIP5 simulations: VEGETATION AND LAND ALBEDO IN MPI-ESM journal February 2013
Long-term effects of UV and visible irradiance on natural populations of a scytonemin-containing cyanobacterium (Calothrix sp.) journal December 1997
Soil Temperature and Heat Flow book January 1982
RETRACTED ARTICLE: TREEFINDER: a powerful graphical analysis environment for molecular phylogenetics journal January 2004
Soil Temperature and Heat Flow book January 1998
MAFFT version 5: improvement in accuracy of multiple sequence alignment journal January 2005

Cited By (35)

Biocrusts and their disturbance mediate the recruitment of native and exotic grasses from a hot desert ecosystem journal July 2018
Biocrusts: the living skin of the earth journal July 2018
Properties of cyanobacterial UV-absorbing pigments suggest their evolution was driven by optimizing photon dissipation rather than photoprotection preprint January 2017
The Compositionally Distinct Cyanobacterial Biocrusts From Brazilian Savanna and Their Environmental Drivers of Community Diversity journal December 2019
Simulated climate change affects how biocrusts modulate water gains and desiccation dynamics after rainfall events journal January 2018
Biophysical processes supporting the diversity of microbial life in soil text January 2017
Spectral Response Analysis: An Indirect and Non-Destructive Methodology for the Chlorophyll Quantification of Biocrusts journal June 2019
Factors influencing pigment production by halophilic bacteria and its effect on brine evaporation rates journal October 2018
Cyanobacterial biocrust diversity in Mediterranean ecosystems along a latitudinal and climatic gradient journal July 2018
Biocrust morphology is linked to marked differences in microbial community composition journal October 2017
Establishing rates of lateral expansion of cyanobacterial biological soil crusts for optimal restoration journal June 2018
Biophysical processes supporting the diversity of microbial life in soil journal August 2017
Diversity and mineral substrate preference in endolithic microbial communities from marine intertidal outcrops (Isla de Mona, Puerto Rico) posted_content July 2016
Warming reduces the cover, richness and evenness of lichen-dominated biocrusts but promotes moss growth: insights from an 8 yr experiment journal January 2018
Effect of preconditioning to the soil environment on the performance of 20 cyanobacterial strains used as inoculum for biocrust restoration journal November 2019
Spatial segregation of the biological soil crust microbiome around its foundational cyanobacterium, Microcoleus vaginatus, and the formation of a nitrogen-fixing cyanosphere journal April 2019
Nursing biocrusts: isolation, cultivation, and fitness test of indigenous cyanobacteria: Nursing biocrust cyanobacteria journal January 2019
Dryland photoautotrophic soil surface communities endangered by global change journal February 2018
Restoring soil functions by means of cyanobacteria inoculation: Importance of soil conditions and species selection journal July 2018
Characterization of maximum land surface temperatures in 16 years from MODIS in Iran journal June 2018
Altering biocrusts for an altered climate journal February 2016
Cyanobacterial diversity of western European biological soil crusts along a latitudinal gradient journal July 2016
Succession and Colonization Dynamics of Endolithic Phototrophs within Intertidal Carbonates journal February 2020
Grazing pressure interacts with aridity to determine the development and diversity of biological soil crusts in Patagonian rangelands journal December 2019
Soil bacterial communities of Sahara and Gibson deserts: Physiological and taxonomical characteristics journal January 2018
Albedo feedbacks to future climate via climate change impacts on dryland biocrusts journal March 2017
Genomic and transcriptomic insights into the survival of the subaerial cyanobacterium Nostoc flagelliforme in arid and exposed habitats: Cyanobacteria in arid and exposed habitats journal January 2019
Matworld - the biogeochemical effects of early life on land journal November 2016
Diversity and mineral substrate preference in endolithic microbial communities from marine intertidal outcrops (Isla de Mona, Puerto Rico) journal January 2017
Differential Responses of Dinitrogen Fixation, Diazotrophic Cyanobacteria and Ammonia Oxidation Reveal a Potential Warming-Induced Imbalance of the N-Cycle in Biological Soil Crusts journal October 2016
Biological soil crusts: diminutive communities of potential global importance journal March 2017
Assessing the influence of soil abiotic and biotic factors on Nostoc commune inoculation success journal August 2019
Exposure to predicted precipitation patterns decreases population size and alters community structure of cyanobacteria in biological soil crusts from the Chihuahuan Desert: Changing rainfall effects on soil cyanobacteria journal December 2017
Soil surface disturbance alters cyanobacterial biocrusts and soil properties in dry grassland and shrubland ecosystems journal June 2019
Microbial communities from arid environments on a global scale. A systematic review journal July 2020

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