Release and characteristics of fungal fragments in various conditions

The Science of the Total Environment
J Mensah-AttipoeTiina Reponen

Abstract

Intact spores and submicrometer size fragments are released from moldy building materials during growth and sporulation. It is unclear whether all fragments originate from fungal growth or if small pieces of building materials are also aerosolized as a result of microbial decomposition. In addition, particles may be formed through nucleation from secondary metabolites of fungi, such as microbial volatile organic compounds (MVOCs). In this study, we used the elemental composition of particles to characterize the origin of submicrometer fragments released from materials contaminated by fungi. Particles from three fungal species (Aspergillus versicolor, Cladosporium cladosporioides and Penicillium brevicompactum), grown on agar, wood and gypsum board were aerosolized using the Fungal Spore Source Strength Tester (FSSST) at three air velocities (5, 16 and 27 m/s). Released spores (optical size, dp ≥ 0.8 μm) and fragments (dp ≤ 0.8 μm) were counted using direct-reading optical aerosol instruments. Particles were also collected on filters, and their morphology and elemental composition analyzed using scanning electron microscopes (SEMs) coupled with an Energy-Dispersive X-ray spectroscopy (EDX). Among the studied factors, air velocit...Continue Reading

References

Mar 22, 2000·Circulation·D R GoldR Verrier
Jan 5, 2002·International Journal of Hygiene and Environmental Health·K FiedlerS Geh
May 21, 2003·Indoor Air·J KildesøT Schneider
Jul 9, 2004·Journal of Environmental Monitoring : JEM·Teija MeklinStephen J Vesper
Jul 21, 2004·The Science of the Total Environment·Satheesh K SivasubramaniSergey A Grinshpun
Jul 5, 2005·The Science of the Total Environment·K WittmaackR Agerer
Oct 20, 2006·Medical Mycology·Brett J GreenDetlef Schmechel
Feb 28, 2007·Medical Mycology·Michael R McGinnis
Dec 11, 2007·Applied and Environmental Microbiology·Sung-Chul SeoSergey A Grinshpun
Apr 4, 2008·Environmental Monitoring and Assessment·Arun SrivastavaAnchal Srivastava
Nov 18, 2008·The Science of the Total Environment·Sung-Chul SeoSergey A Grinshpun
Jul 14, 2012·The Journal of Allergy and Clinical Immunology·Tiina ReponenGrace Lemasters
Jul 31, 2012·International Journal of Hygiene and Environmental Health·Delphine MéheustJean-Pierre Gangneux
Oct 16, 2012·The Science of the Total Environment·Jörg D EttenauerKatja Sterflinger
Sep 14, 2014·Applied and Environmental Microbiology·Komlavi Anani AfanouWijnand Eduard
Feb 9, 2016·Aerosol Science and Technology : the Journal of the American Association for Aerosol Research·Komlavi Anani AfanouWijnand Eduard

❮ Previous
Next ❯

Citations

Sep 4, 2016·American Journal of Infection Control·M Khalid IjazSyed A Sattar
Mar 29, 2019·International Journal of Environmental Research and Public Health·Elisabeth ØyaJørn A Holme
May 23, 2019·Journal of Toxicology and Environmental Health. Part a·Elisabeth ØyaJørn A Holme
Nov 2, 2019·American Journal of Respiratory Cell and Molecular Biology·Tara L CrostonDonald H Beezhold
Nov 25, 2017·Environmental Science & Technology·Nathaniel W MayKerri A Pratt

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.