Silver ions cause oscillation of bacterial length of Escherichia coli

Abstract Silver (Ag) in various forms have recently gained broad interest and been revisited due to their promising antimicrobial effects. Here we report our study on the morphological dynamics of live bacteria when subjected to Ag+ ions. Using time-lapse microscopy, we observed oscillations of cell...

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Autores principales: Venkata Rao Krishnamurthi, Jingyi Chen, Yong Wang
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Lenguaje:EN
Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/3b826c6688b54d108b1fcacecacb47e9
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spelling oai:doaj.org-article:3b826c6688b54d108b1fcacecacb47e92021-12-02T15:09:58ZSilver ions cause oscillation of bacterial length of Escherichia coli10.1038/s41598-019-48113-42045-2322https://doaj.org/article/3b826c6688b54d108b1fcacecacb47e92019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48113-4https://doaj.org/toc/2045-2322Abstract Silver (Ag) in various forms have recently gained broad interest and been revisited due to their promising antimicrobial effects. Here we report our study on the morphological dynamics of live bacteria when subjected to Ag+ ions. Using time-lapse microscopy, we observed oscillations of cell-length for a large fraction of bacteria exposed to 60 μM of Ag+ ions. In addition, we found that the responses of bacteria to Ag+ ions were heterogeneous. We quantified the oscillations of cell-length with power spectral density, which appeared different from that of bacteria growing in the absence of Ag+ ions. Furthermore, a model similar to the predator-prey argument was developed to understand the observed oscillations of cell-length upon exposure to Ag+ ions. This model not only successfully produced the oscillations but also explained the observed heterogeneity in the bacterial responses to Ag+ ions.Venkata Rao KrishnamurthiJingyi ChenYong WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Venkata Rao Krishnamurthi
Jingyi Chen
Yong Wang
Silver ions cause oscillation of bacterial length of Escherichia coli
description Abstract Silver (Ag) in various forms have recently gained broad interest and been revisited due to their promising antimicrobial effects. Here we report our study on the morphological dynamics of live bacteria when subjected to Ag+ ions. Using time-lapse microscopy, we observed oscillations of cell-length for a large fraction of bacteria exposed to 60 μM of Ag+ ions. In addition, we found that the responses of bacteria to Ag+ ions were heterogeneous. We quantified the oscillations of cell-length with power spectral density, which appeared different from that of bacteria growing in the absence of Ag+ ions. Furthermore, a model similar to the predator-prey argument was developed to understand the observed oscillations of cell-length upon exposure to Ag+ ions. This model not only successfully produced the oscillations but also explained the observed heterogeneity in the bacterial responses to Ag+ ions.
format article
author Venkata Rao Krishnamurthi
Jingyi Chen
Yong Wang
author_facet Venkata Rao Krishnamurthi
Jingyi Chen
Yong Wang
author_sort Venkata Rao Krishnamurthi
title Silver ions cause oscillation of bacterial length of Escherichia coli
title_short Silver ions cause oscillation of bacterial length of Escherichia coli
title_full Silver ions cause oscillation of bacterial length of Escherichia coli
title_fullStr Silver ions cause oscillation of bacterial length of Escherichia coli
title_full_unstemmed Silver ions cause oscillation of bacterial length of Escherichia coli
title_sort silver ions cause oscillation of bacterial length of escherichia coli
publisher Nature Portfolio
publishDate 2019
url https://doaj.org/article/3b826c6688b54d108b1fcacecacb47e9
work_keys_str_mv AT venkataraokrishnamurthi silverionscauseoscillationofbacteriallengthofescherichiacoli
AT jingyichen silverionscauseoscillationofbacteriallengthofescherichiacoli
AT yongwang silverionscauseoscillationofbacteriallengthofescherichiacoli
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