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Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films

[Image: see text] 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 p...

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Autores principales: DeYoung, Jessica L, Shaw, Scott K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10125300/
https://www.ncbi.nlm.nih.gov/pubmed/37101970
http://dx.doi.org/10.1021/acsenvironau.2c00004
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author DeYoung, Jessica L
Shaw, Scott K.
author_facet DeYoung, Jessica L
Shaw, Scott K.
author_sort DeYoung, Jessica L
collection PubMed
description [Image: see text] 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.
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spelling pubmed-101253002023-04-25 Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films DeYoung, Jessica L Shaw, Scott K. ACS Environ Au [Image: see text] 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. American Chemical Society 2022-04-14 /pmc/articles/PMC10125300/ /pubmed/37101970 http://dx.doi.org/10.1021/acsenvironau.2c00004 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle DeYoung, Jessica L
Shaw, Scott K.
Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
title Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
title_full Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
title_fullStr Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
title_full_unstemmed Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
title_short Association of Chemical Aggregates and Fungal Moieties Affecting Native Environmental Films
title_sort association of chemical aggregates and fungal moieties affecting native environmental films
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10125300/
https://www.ncbi.nlm.nih.gov/pubmed/37101970
http://dx.doi.org/10.1021/acsenvironau.2c00004
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