Emission Factors of Microbial Volatile Organic Compounds from Environmental Bacteria and Fungi

• DOI: 10.1021/acs.est.8b00806
• Publication Date: 2018-06-27T13:05:07Z
• Authors: Pawel K. Misztal; Despoina S. Lympe...; Rachel I. Adams; Russell A. Scott; Steven E. Lindow; Thomas Bruns; John W. Taylor; Jessie Uehling; Gregory Bonito; Rytas Vilgalys; Allen H. Goldstein
• Keywords: Bacterial growth

Knowledge of the factors controlling diverse chemical emissions common environmental bacteria and fungi is crucial because they are important signal molecules for these microbes that also could influence humans. We show here not only a high diversity mVOCs but their abundance can differ greatly in different contexts. Microbial volatiles exhibit dynamic changes across microbial growth phases, resulting variance composition emission rate species-specific generic mVOCs. In vitro experiments documented wide range (>400 chemicals) at time resolution from species grown under controlled conditions on nutrient media, or residential structural materials (N = 54, Ncontrol 23). Emissions varied between taxa given condition as function life stage substrate type. quantify total specific normalized respiration rates to account activity during stationary phase. Our VOC measurements indicate variety beyond temperature water activity, such type, symbiosis, phase, lifecycle affect magnitude mVOC emission.