Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
2.7
3.2
Journals
Life
Special Issues
Advances in Cyanobacterial Blooms, Toxicity and Ecology
share announcement

Advances in Cyanobacterial Blooms, Toxicity and Ecology

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 5089

Special Issue Editors

Dr. Paul M. D'Agostino

E-Mail Website
Guest Editor
Department of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany
Interests: natural products; cyanotoxins; synthetic biology; heterologous expression; proteomics; genome mining
Special Issues, Collections and Topics in MDPI journals
Dr. Nádia Eusébio

E-Mail Website
Guest Editor
Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), 4450-208 Matosinhos, Portugal
Interests: natural products; cyanobacteria; halogenases; genetics; microbiology; biotechnology
Special Issues, Collections and Topics in MDPI journals
Dr. Ângela Brito

E-Mail Website
Guest Editor
i3S - Instituto de Investigação e Inovação em Saúde & IBMC – Instituto de Biologia Molecular e Celular, Universidade do Porto, 4150-180 Porto, Portugal
Interests: cyanobacteria; molecular microbiology; comparative genomics; phylogeny; cyanobacterial diversity; natural products; biotechnology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Cyanobacteria are an ancient prokaryote phylum that evolved ~3 billion years ago and are attributed with oxygenating the Earth’s atmosphere during the Great Oxygenation event. They play a key role in the global carbon cycle as important primary producers. Diazotrophic strains are fundamental to the nitrogen cycle, and, thus, cyanobacteria provide significant widespread ecological roles. They are found in almost every habitat on Earth, including symbiotic, freshwater, terrestrial, marine and extreme environments, presenting a great capacity for rapid adaptation to various environmental conditions due to their morphological and metabolic versatility. Further, cyanobacteria are well known for their ability to produce a range of natural products, including toxins with deleterious effects on ecosystem equilibrium and human health as well as those with valuable properties, namely, the production of lipids for biofuels and pharmaceuticals. As cyanobacterial ecology, toxicity and natural products research continues to mature, we eagerly await the exciting discoveries these data will provide.

In this Special Issue of Life, we invite researchers from all over the world to share with us their recent advances in the form of original work and review articles with a focus on cyanobacterial toxicity and ecology.

Dr. Paul M. D'Agostino
Dr. Nádia Eusébio
Dr. Ângela Brito
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Life is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • harmful blooms
  • cyanotoxins
  • natural products
  • chemical ecology
  • niche ecology
  • biodiversity and ecology
  • population and community structure
  • diversity and evolution

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

13 pages, 7184 KiB  
Article
Prophylactic Addition of Glucose Suppresses Cyanobacterial Abundance in Lake Water
by Stephen Vesper, Nathan Sienkiewicz, Ian Struewing, David Linz and Jingrang Lu
Life 2022, 12(3), 385; https://doi.org/10.3390/life12030385 - 07 Mar 2022
Cited by 2 | Viewed by 2555
Abstract
To mitigate harmful cyanobacterial blooms (HCBs), toxic algicides have been used, but alternative methods of HCB prevention are needed. Our goal was to test the prophylactic addition of glucose to inhibit HCB development, using Microcystis and the toxin microcystin as the HCB model. [...] Read more.
To mitigate harmful cyanobacterial blooms (HCBs), toxic algicides have been used, but alternative methods of HCB prevention are needed. Our goal was to test the prophylactic addition of glucose to inhibit HCB development, using Microcystis and the toxin microcystin as the HCB model. Water samples were collected weekly, from 4 June to 2 July, from Harsha Lake in southwestern Ohio during the 2021 algal bloom season. From each weekly sample, a 25 mL aliquot was frozen for a 16S rRNA gene sequencing analysis. Then, 200 mL of Harsha Lake water was added to each of the three culture flasks, and glucose was added to create concentrations of 0 mM (control), 1.39 mM, or 13.9 mM glucose, respectively. The microcystin concentration in each flask was measured after 1 and 2 weeks of incubation. The results showed an 80 to 90% reduction in microcystin concentrations in glucose-treated water compared to the control. At the end of the second week of incubation, a 25 mL sample was also obtained from each of the culture flasks for molecular analysis, including a 16S rRNA gene sequencing and qPCR-based quantification of Microcystis target genes. Based on these analyses, the glucose-treated water contained significantly lower Microcystis and microcystin producing gene (mcy) copy numbers than the control. The 16S rRNA sequencing analysis also revealed that Cyanobacteria and Proteobacteria were initially the most abundant bacterial phyla in the Harsha Lake water, but as the summer progressed, Cyanobacteria became the dominant phyla. However, in the glucose-treated water, the Cyanobacteria decreased and the Proteobacteria increased in weekly abundance compared to the control. This glucose-induced proteobacterial increase in abundance was driven primarily by increases in two distinct families of Proteobacteria: Devosiaceae and Rhizobiaceae. In conclusion, the prophylactic addition of glucose to Harsha Lake water samples reduced Cyanobacteria’s relative abundance, Microcystis numbers and microcystin concentrations and increased the relative abundance of Proteobacteria compared to the control. Full article
(This article belongs to the Special Issue Advances in Cyanobacterial Blooms, Toxicity and Ecology)
►▼ Show Figures

Figure 1

9 pages, 878 KiB  
Article
Effect of Microcystin-LR, Nodularin, Anatoxin-a, β-N-Methylamino-L-Alanine and Domoic Acid on Antioxidant Properties of Glutathione
by Michal Adamski and Ariel Kaminski
Life 2022, 12(2), 227; https://doi.org/10.3390/life12020227 - 31 Jan 2022
Cited by 1 | Viewed by 1946
Abstract
Cyanobacteria produce a range of toxic secondary metabolites that affect many processes in human, animal and also plant cells. In recent years, some efforts have concentrated on deepening the understanding of their effect on living cells in the context of the disruption of [...] Read more.
Cyanobacteria produce a range of toxic secondary metabolites that affect many processes in human, animal and also plant cells. In recent years, some efforts have concentrated on deepening the understanding of their effect on living cells in the context of the disruption of antioxidant systems. Many results suggest that cyanotoxins interfere with glutathione (GSH) metabolism, which often leads to oxidative stress and, in many cases, cell death. Knowledge about the influence of cyanotoxins on enzymes involved in GSH synthesis or during its antioxidant action is relatively broad. However, to date, there is no information about the antioxidant properties of GSH after its direct interaction with cyanotoxins. In this paper, we investigated the effect of four cyanotoxins belonging to the groups of hepatotoxins (microcystin-LR and nodularin) or neurotoxins (anatoxin-a and β-N-methylamino-L-alanine) on the in vitro antioxidant properties of GSH. Moreover, the same study was performed for domoic acid (DA) produced by some diatoms. The obtained results showed that none of the studied compounds had an effect on GSH antioxidant potential. The results presented in this paper are, to the best of our knowledge, the first description of the kinetics of scavenging radicals by GSH reactions under the influence of these cyanotoxins and DA. This work provides new and valuable data that broadens the knowledge of the impact of cyanotoxins and DA on GSH metabolism and complements currently available information. Future studies should focus on the effects of the studied compounds on antioxidant systems in vivo. Full article
(This article belongs to the Special Issue Advances in Cyanobacterial Blooms, Toxicity and Ecology)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop