Cyanobacterial blooms are a water quality problem that has been widely acknowledged to cause detrimental ecological and economic effects in drinking and recreational waters supplies, and fisheries. There is increasing evidence that cyanobacterial blooms have increased globally and are likely to expand in water resources due to climate change. Of most concern are cyanotoxins, along with mechanisms that induce their release and fate in the aquatic envirornment. These secondary metabolites pose a potential hazard to human health and agricultural and aquaculture products directed for animal and human consumption; therefore, strict and reliable control of cyanotoxins is crucial for assessing risk. In this direction, a deeper understanding of the mechanisms that determine cyanobacterial bloom structures and toxin production become a target for managing practices.This Special Issue aims to bring together recent research of multi- and interdisciplinary approaches from the field to the laboratory and back again, driven by working hypotheses based on any aspect from ecological theory to applied research on mitigating cyanobacterial blooms. Of special interest are papers that suggest the use of complementary approaches, from the most recently developed molecular-based methods to more classical approaches and experimental and mathematical modeling regarding factors (abiotic and/or biotic) that control the diversity of not only the key bloom forming cyanobacterial species, but also their interactions to other biota, either in frehswater systems or their adjacent habitats, and their role in preventing and/or promoting cyanobacterial growth and toxin production and/or degradation.
Prof. Dr. Elisabeth (Savi) Vardaka
Prof. Dr. Konstantinos Ar. Kormas
Deadline for manuscript submissions: 30 November 2019
Link to the Special Issue website (Water-MDPI).
Harmful Algae News (HAN) is an IOC (UNESCO) newsletter created to respond to the expressed wishes of participants in several IOC workshops on harmful algal blooms, in particular the IOC-SCOR Workshop in Newport, Rhode Island (USA), 2-3 November 1991. Its purpose is to disseminate information on harmful algal events and on research results as well as to announce research and management programmes, conferences, meetings etc. The initial address list included all the participants in the V International Conference on Harmful Algal Blooms. Nowadays, HAN has more than 2000 subscribers.
HARMFUL ALGAE NEWS No. 61 now online @ http://www.e-pages.dk/ku/1401/
Visit the ISSHA webpage for more resources on Harmful Algae.
Dear CyanoCOST Members and colleagues,
We are looking for collaborators to a unique global water sampling project with an overall objective to describe the global diversity of aquatic fungi and determine the abiotic drivers of fungal communities. Please find the description of the project :
Let us know if you are interested in participating by registering in the google sheet .
We also ask you to share this invitation with your colleagues and enthusiastic amateurs.
Kristel Panksep and the FunAqua core team
FunAqua project coordinator, Estonian University of Life Sciences, Centre for Limnology, University of Tartu, Institute of Ecology and earth Sciences, Chair of Mycology
The September-October 2018 issue of CYANOnews is out !
It features, among others, an overview of the CyanoTracker project, open special issues related to cyano-research, new papers acknowledging CYANOCOST, job offers and forthcoming events.
You can download it here:
The next issue will come out in the end of November. You are welcome to send us any posts and info to be included in CYANOnews and in our media (website, facebook, twitter).
Looking forward to ICHA2018 in Nantes,
The Department of Environmental Chemistry (Uchem) of Eawag is offering a position for a Postdoctoral Researcher in Environmental and Analytical Chemistry.
Topic: Natural Toxins
The position is part of our research on natural toxins. Ecosystems and drinking water resources are not only vulnerable towards anthropogenic pollutants but also natural toxins. Bioactive compounds produced by aquatic organisms, such as cyanobacteria, are of particular concern since these are waterborne toxins directly released into surface waters. Cyanobacteria produce a diverse mixture of bioactive compounds beyond the well-known microcystins, yet the potential risk of many cyanobacterial metabolites remains mostly unknown.
The project is led by Dr Elisabeth Janssen (Uchem) in collaboration with Dr Colette vom Berg (Utox). The period of appointment for the Postdoctoral Researcher is 24 months, earliest starting date is January 2019 or as soon as the position can be adequately filled.
Closing date for applications is 15 November 2018.
Details and application form can be found here.
The Phycological Society of America (PSA) was founded in 1946 to promote research and teaching in all fields of Phycology. The society publishes the Journal of Phycology and the Phycological Newsletter.
CYANOCOST is featured in the current issue of the Phycological Newsletter. On the “Resources” page (p.48), there is a presentation of CYANOCOST including its major products.
Many thanks to Dr. Annick Wilmotte (CYANOCOST) and Prof. J. Jeffrey Morris, (Editor, Phycological Newsletter) for bridging the two networks.
You can visit the PSA website for news, resources and opportunities, if you are interested in Phycology.
Abstract from a recent paper by Hanna Mazur-Marzec et al., published in Marine Drugs:
“Cyanopeptolins (CPs) are one of the most frequently occurring cyanobacterial peptides, many of which are inhibitors of serine proteases. Some CP variants are also acutely toxic to aquatic organisms, especially small crustaceans. In this study, thirteen CPs, including twelve new variants, were detected in the cyanobacterium Nostoc edaphicum CCNP1411 isolated from the Gulf of Gdańsk (southern Baltic Sea). Structural elucidation was performed by tandem mass spectrometry with verification by NMR for CP962 and CP985. Trypsin and chymotrypsin inhibition assays confirmed the significance of the residue adjacent to 3-amino-6-hydroxy-2-piperidone (Ahp) for the activity of the peptides. Arginine-containing CPs (CPs-Arg2) inhibited trypsin at low IC50 values (0.24–0.26 µM) and showed mild activity against chymotrypsin (IC50 3.1–3.8 µM), while tyrosine-containing CPs (CPs-Tyr2) were selectively and potently active against chymotrypsin (IC50 0.26 µM). No degradation of the peptides was observed during the enzyme assays. Neither of the CPs were active against thrombin, elastase or protein phosphatase 1. Two CPs (CP962 and CP985) had no cytotoxic effects on MCF-7 breast cancer cells. Strong and selective activity of the new cyanopeptolin variants makes them potential candidates for the development of drugs against metabolic disorders and other diseases.”
The work was carried out by researchers of the University of Gdansk (Poland) and Robert Gordon University (Scotland, UK) and acknowledges CYANOCOST.
Reference (open access):
Mazur-Marzec, Hanna; Fidor, Anna; Cegłowska, Marta; Wieczerzak, Ewa; Kropidłowska, Magdalena; Goua, Marie; Macaskill, Jenny; Edwards, Christine (2018). Cyanopeptolins with Trypsin and Chymotrypsin Inhibitory Activity from the Cyanobacterium Nostoc edaphicum CCNP1411. Marine Drugs 16(7) https://doi.org/10.3390/md16070220
Three papers have been published in the Marine Drugs Special Issue “Marine Bacterial Toxins”, that is edited by Prof. Hanna Mazur-Marzec and Dr. Anna Toruńska-Sitarz (University of Gdańsk).
You can have open access to the papers through the Special Issue website:
The call for submission of papers for this issue is still open. The submission deadline is 20 December 2018.You can contact the editors if you are planning to submit a paper.
Dr. Philipp Hess
(Ifremer, France) and Dr. Jean-Francois Humbert
(Sorbonne University, France) are editors of a Special Issue
titled “Potentially Toxic Benthic Microorganisms in Freshwater and Marine Ecosystems”,
(MDPI). This special issue belongs to the section “Marine and Freshwater Toxins
The aim of the Special Issue is to “gather the most recent research on benthic cyanobacteria and microalgae proliferating in marine and freshwater ecosystems and on their toxins. All papers dealing with the taxonomy, genetic diversity, ecology and toxicity of biofilms dominated by potentially-toxic cyanobacteria and microalgae and on risk assessment and management associated with such assemblages will be considered in this Special Issue.“
The deadline for manuscript submissions is 31 August 2019, but papers will be published as soon as they are accepted following peer-review, i.e. well before the deadline and typically within 4-8 weeks from submission.
You can share this information with colleagues that may be interested to publish in this Special Issue.
On 24 October 2018, the International Day of Climate Action, the Australian Rivers Institute (ARI), Griffith University, Australia, is excited to host the 1st online Cyanobacteria Twitter Conference with a focus on climate change effects on cyanobacterial blooms and its management.
The primary objectives are to:
– keep abreast of research developments and impact;
– strengthen our network using online platforms;
– identify new opportunities for collaboration; and
– provide outreach and engagement to a broad audience
Details on how to participate can be found here.
The deadline to submit abstract-tweets is 30 September 2018.