A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Temporal Dynamics of Cyanobacterial Bloom Community Composition and Toxin Production from Urban Lakes
https://orcid.org/0000-0002-2200-0277
With a long evolutionary history and a need to adapt to a changing environment, cyanobacteria in freshwater systems use specialized metabolites for communication, defense, and physiological processes. Furthermore, many cyanobacterial specialized metabolites and toxins present significant human health concerns due to their liver toxicity and their potential impact to drinking water. Gaps in knowledge exist with respect to changes in species diversity and toxin production during a cyanobacterial bloom (cyanoHAB) event; addressing these gaps will improve understanding of impacts to public and ecological health. In the current report we detail community and toxin composition dynamics during a late bloom period. Species diversity decreased at all study sites over the course of the bloom event, and toxin production reached a maximum at the midpoint of the event. We also isolated three new microcystins from a Microcystis dominated bloom (1–3), two of which contained unusual doubly homologated tyrosine residues (1 and 2). This work provokes intriguing questions with respect to the use of allelopathy by organisms in these systems and the presence of emerging toxic compounds that can impact public health.
In this study, we examined the cyanobacterial species and cyanotoxin composition at three urban lakes in Providence Rhode Island during a cyanobacterial bloom event. There were clear species composition shifts as the bloom progressed and species diversity declined at all three study sites. Cyanotoxin production was not constitutive but correlated with cyanobacterial biomass and many new putative cyanotoxins were identified by LC–MS/MS-based molecular networking.
Temporal Dynamics of Cyanobacterial Bloom Community Composition and Toxin Production from Urban Lakes
https://orcid.org/0000-0002-2200-0277
With a long evolutionary history and a need to adapt to a changing environment, cyanobacteria in freshwater systems use specialized metabolites for communication, defense, and physiological processes. Furthermore, many cyanobacterial specialized metabolites and toxins present significant human health concerns due to their liver toxicity and their potential impact to drinking water. Gaps in knowledge exist with respect to changes in species diversity and toxin production during a cyanobacterial bloom (cyanoHAB) event; addressing these gaps will improve understanding of impacts to public and ecological health. In the current report we detail community and toxin composition dynamics during a late bloom period. Species diversity decreased at all study sites over the course of the bloom event, and toxin production reached a maximum at the midpoint of the event. We also isolated three new microcystins from a Microcystis dominated bloom (1–3), two of which contained unusual doubly homologated tyrosine residues (1 and 2). This work provokes intriguing questions with respect to the use of allelopathy by organisms in these systems and the presence of emerging toxic compounds that can impact public health.
In this study, we examined the cyanobacterial species and cyanotoxin composition at three urban lakes in Providence Rhode Island during a cyanobacterial bloom event. There were clear species composition shifts as the bloom progressed and species diversity declined at all three study sites. Cyanotoxin production was not constitutive but correlated with cyanobacterial biomass and many new putative cyanotoxins were identified by LC–MS/MS-based molecular networking.
Temporal Dynamics of Cyanobacterial Bloom Community Composition and Toxin Production from Urban Lakes
https://orcid.org/0000-0002-2200-0277
With a long evolutionary history and a need to adapt to a changing environment, cyanobacteria in freshwater systems use specialized metabolites for communication, defense, and physiological processes. Furthermore, many cyanobacterial specialized metabolites and toxins present significant human health concerns due to their liver toxicity and their potential impact to drinking water. Gaps in knowledge exist with respect to changes in species diversity and toxin production during a cyanobacterial bloom (cyanoHAB) event; addressing these gaps will improve understanding of impacts to public and ecological health. In the current report we detail community and toxin composition dynamics during a late bloom period. Species diversity decreased at all study sites over the course of the bloom event, and toxin production reached a maximum at the midpoint of the event. We also isolated three new microcystins from a Microcystis dominated bloom (1–3), two of which contained unusual doubly homologated tyrosine residues (1 and 2). This work provokes intriguing questions with respect to the use of allelopathy by organisms in these systems and the presence of emerging toxic compounds that can impact public health.
In this study, we examined the cyanobacterial species and cyanotoxin composition at three urban lakes in Providence Rhode Island during a cyanobacterial bloom event. There were clear species composition shifts as the bloom progressed and species diversity declined at all three study sites. Cyanotoxin production was not constitutive but correlated with cyanobacterial biomass and many new putative cyanotoxins were identified by LC–MS/MS-based molecular networking.
Temporal Dynamics of Cyanobacterial Bloom Community Composition and Toxin Production from Urban Lakes
Maurer, Julie A. (author) / Xia, Runjie (author) / Kim, Andrew M. (author) / Oblie, Nana (author) / Hefferan, Sierra (author) / Xie, Hannuo (author) / Slitt, Angela (author) / Jenkins, Bethany D. (author) / Bertin, Matthew J. (author)
ACS ES&T Water ; 4 ; 3423-3432
2024-08-09
Article (Journal)
Electronic Resource
English
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