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Rupturing of Biological Spores As a Source of Secondary Particles in Amazonia

Journal Article · · Environmental Science and Technology
Airborne biological particles, such as fungal spores and pollen, are ubiquitous in the Earth’s atmosphere and play an important role in the atmospheric environment and climate, impacting air quality, cloud formation, and the Earth’s radiation budget. The atmospheric transformations of airborne biological spores at elevated relative humidity remain poorly understood and their climatic role is uncertain. Using an environmental scanning electron microscope (ESEM), we observed rupturing of Amazonian fungal spores and subsequent release of nanometer to submicron size fragments after exposure to high humidity. We find that fungal fragments contain elements of inorganic salts (e.g., Na and Cl). They are hygroscopic in nature with a growth factor up to 2.3 at 96% relative humidity, thus they may potentially influence cloud formation. Due to their hygroscopic growth, light scattering cross sections of the fragments are enhanced by up to a factor of 10. Furthermore, rupturing of fungal spores at high humidity may explain the bursting events of nanoparticles and may provide insight into new particle formation in Amazonia.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1340765
Report Number(s):
PNNL-SA-118675; 48856
Journal Information:
Environmental Science and Technology, Journal Name: Environmental Science and Technology Journal Issue: 22 Vol. 50; ISSN 0013-936X
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English

References (59)

Overview of the inorganic and organic composition of size-segregated aerosol in Rondônia, Brazil, from the biomass-burning period to the onset of the wet season journal January 2007
The relevance of nanoscale biological fragments for ice nucleation in clouds journal January 2015
Analysis of individual environmental particles using modern methods of electron microscopy and X-ray microanalysis journal February 2006
Microorganisms cultured from stratospheric air samples obtained at 41 km journal January 2003
Wind-induced mechanical rupture of birch pollen: Potential implications for allergen dispersal journal November 2015
Contribution of fungi to primary biogenic aerosols in the atmosphere: wet and dry discharged spores, carbohydrates, and inorganic ions journal January 2007
Hygroscopic properties of levoglucosan and related organic compounds characteristic to biomass burning aerosol particles: HYGROSCOPIC PROPERTY OF LEVOGLUCOSAN journal November 2004
Fungal contribution to size-segregated aerosol measured through biomarkers journal January 2013
Birch pollen rupture and the release of aerosols of respirable allergens journal October 2004
Species traits and inertial deposition of fungal spores journal July 2013
Biogeography in the air: fungal diversity over land and oceans journal January 2012
Multiphase Chemistry at the Atmosphere–Biosphere Interface Influencing Climate and Public Health in the Anthropocene journal February 2015
Interhemispheric transport of viable fungi and bacteria from Africa to the Caribbean with soil dust journal March 2005
Atmospheric aerosols in Amazonia and land use change: from natural biogenic to biomass burning conditions journal January 2013
Measurements and comparison of primary biological aerosol above and below a tropical forest canopy using a dual channel fluorescence spectrometer journal January 2010
Characterization of active and total fungal communities in the atmosphere over the Amazon rainforest journal January 2015
Heterogeneous chemistry of individual mineral dust particles with nitric acid: A combined CCSEM/EDX, ESEM, and ICP-MS study journal January 2005
Pollen as atmospheric cloud condensation nuclei: POLLEN AS CCN journal May 2015
Sources of optically active aerosol particles over the Amazon forest journal March 2004
Linking Meteorology, Turbulence, and Air Chemistry in the Amazon Rain Forest journal December 2016
Airborne Starch Granules as a Potential Contamination Source at Archaeological Sites journal December 2011
Atmospheric Aerosols: Composition, Transformation, Climate and Health Effects journal November 2005
Significant contributions of fungal spores to the organic carbon and to the aerosol mass balance of the urban atmospheric aerosol journal July 2008
Chemistry and morphology of dried-up pollen suspension residues: Chemistry and morphology of pollen suspension residues journal October 2013
The contribution of biological particles to observed particulate organic carbon at a remote high altitude site journal September 2009
Primary biological aerosol particles in the atmosphere: a review journal January 2012
Rainforest Aerosols as Biogenic Nuclei of Clouds and Precipitation in the Amazon journal September 2010
Design and performance of an automatic regenerating adsorption aerosol dryer for continuous operation at monitoring sites journal January 2009
Fungal Fragments as Indoor Air Biocontaminants journal July 2002
Regional-scale simulations of fungal spore aerosols using an emission parameterization adapted to local measurements of fluorescent biological aerosol particles journal January 2015
Mechanism of grass-pollen-induced asthma journal March 1992
Cell Wall Chemistry, Morphogenesis, and Taxonomy of Fungi journal October 1968
Mechanism of grass-pollen-induced asthma journal March 1992
Airplane Collections of Sugar-Beet Pollen journal November 1938
Seasonal Variability in Bacterial and Fungal Diversity of the Near-Surface Atmosphere journal October 2013
Release of allergen-bearing cytoplasm from hydrated pollen: A mechanism common to a variety of grass (Poaceae) species revealed by electron microscopy☆ journal July 2001
Fungal and actinomycete spore aerosols measured at different humidities with an aerodynamic particle sizer journal May 1992
Polysaccharides from Cell Walls of Aureobasidium (Pullularia) pullulans. Part II. Heteropolysaccharide. journal January 1967
Abundance of Cellular Material and Proteins in the Atmosphere journal April 2005
Size distributions and temporal variations of biological aerosol particles in the Amazon rainforest characterized by microscopy and real-time UV-APS fluorescence techniques during AMAZE-08 journal January 2012
Temporal and spatial variation of indoor and outdoor airborne fungal spores, pollen, and (1→3)-β-d-glucan journal May 2009
Release of allergens as respirable aerosols: A link between grass pollen and asthma journal January 2002
Meteorological Influences on Respirable Fragment Release from Chinese Elm Pollen journal August 2006
Fungal Fragments as Indoor Air Biocontaminants journal July 2002
The captured launch of a ballistospore journal July 2005
Optical properties of absorbing and non-absorbing aerosols retrieved by cavity ring down (CRD) spectroscopy journal January 2007
Sources and properties of Amazonian aerosol particles journal January 2010
Effect of relative humidity on the aerodynamic diameter and respiratory deposition of fungal spores journal December 1996
Suspendable macromolecules are responsible for ice nucleation activity of birch and conifer pollen journal January 2012
Characterization of primary biogenic aerosol particles in urban, rural, and high-alpine air by DNA sequence and restriction fragment analysis of ribosomal RNA genes journal January 2007
Overview of the inorganic and organic composition of size-segregated aerosol in Rondônia, Brazil, from the biomass-burning period to the onset of the wet season journal January 2007
High concentrations of biological aerosol particles and ice nuclei during and after rain journal January 2013
Arabitol and Mannitol as Tracer for Fungal Contribution to Size-Differentiated Particulate Matter of Rural Atmospheric Aerosols [Arabitol and Mannitol as Tracer for Fungal Contribution to Size-Differentiated Particulate Matter of Rural Atmospheric Aerosols] journal January 2015
Direct Observations of Atmospheric Aerosol Nucleation journal February 2013
Aircraft measurements of polar organic tracer compounds in tropospheric particles (PM10) over central China journal January 2014
The chemical composition and complex refractive index of rural and urban influenced aerosols determined by individual particle analysis journal December 2004
Physical and chemical properties of aerosols in the wet and dry seasons in Rondônia, Amazonia journal January 2002
Abortive pollen germination: A mechanism of allergen release in birch, alder, and hazel revealed by immunogold electron microscopy journal May 2003
Omnipresence of biological material in the atmosphere journal January 2007

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Chemical composition of ultrafine aerosol particles in central Amazonia during the wet season journal January 2019
Polyols and glucose particulate species as tracers of primary biogenic organic aerosols at 28 French sites journal January 2019
Arabitol, mannitol, and glucose as tracers of primary biogenic organic aerosol: the influence of environmental factors on ambient air concentrations and spatial distribution over France journal January 2019
Evaluation of Bioaerosol Bacterial Components of a Wastewater Treatment Plant Through an Integrate Approach and In Vivo Assessment journal December 2019
Abundance and Diurnal Trends of Fluorescent Bioaerosols in the Troposphere over Mt. Tai, China, in Spring journal April 2019
Drivers of the fungal spore bioaerosol budget: observational analysis and global modeling journal January 2021
Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories text January 2018
Atmospheric fungal nanoparticle bursts journal January 2020
Fungal spores as a source of sodium salt particles in the Amazon basin journal November 2018
Sensitivities to biological aerosol particle properties and ageing processes: potential implications for aerosol–cloud interactions and optical properties journal March 2021
Elemental Mixing State of Aerosol Particles Collected in Central Amazonia during GoAmazon2014/15 journal September 2017
Multi-year statistical and modeling analysis of submicrometer aerosol number size distributions at a rain forest site in Amazonia journal January 2018
Single-particle characterization of aerosols collected at a remote site in the Amazonian rainforest and an urban site in Manaus, Brazil journal January 2019
Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories text January 2018
Mixing states of Amazon basin aerosol particles transported over long distances using transmission electron microscopy journal January 2020

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