Journal article
Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
ACS Environmental Au, Vol.2(4), pp.310-313
04/14/2022
DOI: 10.1021/acsenvironau.2c00004
Appears in UI Libraries Support Open Access
Abstract
Fungi are prevalent microorganisms in environmental films. Their impacts on the film chemical environment and morphology remains poorly defined. Here we present microscopic and chemical analyses fungi impacts to environmental films over long- and short-time scales. We report bulk properties of films accumulated for 2 months (February and March 2019) and 12 months to contrast short and longer-term effects. Bright field microscopy results show that fungi and fungal-associated aggregates cover close to 14% of the surface after 12 months and include significant numbers of large (tens to hundreds of μm in diameter) particles aggregated with fungal colonies. Data acquired for films accumulated over shorter times (2 months) suggest mechanisms that contribute to these longer-term effects. This is important because the film's exposed surface will determine what additional material will accumulate over the ensuing weeks or months. A combination of scanning electron microscopy and energy dispersive X-ray spectroscopy provides spatially resolved maps of fugal hypha and nearby elements of interest. We also identify a "nutrient pool" associated with the fungal hypha which extend orthogonally to the growth direction to ca. 50 μm distances. We conclude that fungi have both short-term and long-term effects on the chemistry and morphology of environmental film surfaces. In short, the presence (or absence) of fungi will significantly alter the films' evolution and should be considered when analyzing environmental film impacts on local processes.
Details
- Title: Subtitle
- Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
- Creators
- Jessica L DeYoung - University of IowaScott K. Shaw - University of Iowa
- Resource Type
- Journal article
- Publication Details
- ACS Environmental Au, Vol.2(4), pp.310-313
- DOI
- 10.1021/acsenvironau.2c00004
- ISSN
- 2694-2518
- eISSN
- 2694-2518
- Publisher
- American Chemical Society
- Grant note
- DOI: 10.13039/100000183, name: Army Research Office, award: W911-NF-1-71600-CH
- Language
- English
- Date published
- 04/14/2022
- Academic Unit
- Chemistry
- Record Identifier
- 9984274759902771
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