The second edition of the summer course “Integrating ‘Omics’ Technologies into Aquatic Ecology: New perspectives in Metagenomic, Metabolomic and Bioinformatic applications in the study of aquatic ecosystems” will be held between the 25th and 29th of June 2018 at S. Michele all’Adige (Italy). All information and detailed program can be found in:
The summer course flyer van be downloaded here.
Nico Salmaso (email@example.com), Claudio Donati (firstname.lastname@example.org)
From the abstract of a new paper by Jungblut et. al (2018) published in European Journal of Phycology :
Microcystins (MCN), β-N-methylamino-L-alanine (BMAA) and anatoxin-a were investigated in Antarctic cyanobacterial mats collected from Ross Island and the McMurdo Ice Shelf, East Antarctica during Captain Scott’s ‘Discovery’ National Antarctic Expedition (1901–1904). Ultra-performance liquid chromatography-photodiode array detection (UPLC-PDA) and tandem mass spectrometry (MS/MS) analysis were used to quantify the cyanotoxins in seven cyanobacterial mat samples. MCNs were identified in six of the mat samples at concentrations from 0.5 to 16.1 µg g–1 dry weight. BMAA was found in one sample (528 ng g–1 dry weight, total BMAA), as well as two BMAA isomers, 2,4-diaminobutyric acid (DAB) and N-(2-aminoethyl) glycine (AEG) in six samples up to 6.56 and 6.79 μg g–1 dry weight, respectively. No anatoxin-a was detected. The findings confirm that MCNs, BMAA and BMAA isomers are preserved under dry herbarium conditions. The ‘Discovery’ cyanobacterial mat samples represent the oldest polar cyanobacterial samples found to contain cyanotoxins to date and provide new baseline data for cyanotoxins in Antarctic freshwater cyanobacterial mats from prior to human activity in Antarctica, the development of the ozone hole and current levels of climatic change.
Read the story by Katie Pavid in the Natural History Museum, UK website.
A new paper has been published by Konstantinou et al. (2018) from Cyanolab AUTH, in PlosOne. The authors summarize the global diversity of sponge species hosting cyanobacteria, as well as the diversity of cyanobacterial symbionts and provide a detailed list, along with new data from the Aegean Sea, a previously unexplored eastern ecoregion. The evaluation of the literature along with the new data from the Aegean Sea raised the number of sponge species known for hosting cyanobacteria to 320 and showed that the cyanobacterial diversity reported from sponges is yet underestimated. Highlight of the research is the isolation of nine cyanobacteria strains (only 19 cyanobacteria strains have been isolated to date from sponges). The nine isolated cyanobacteria were found to form novel clades within Synechococcus, Leptolyngbyaceae, Pseudanabaenaceae, and Schizotrichaceae. This is the first report of a Schizotrichaceae cyanobacterium associated with sponges. The results of this research propose the occurrence of new sponge-cyanobacteria associations and new cyanobacteria taxa.
Konstantinou D, Gerovasileiou V, Voultsiadou E, Gkelis S (2018) Sponges- Cyanobacteria associations: Global diversity overview and new data from the Eastern Mediterranean. PLoS ONE 13(3): e0195001. https://doi.org/10.1371/journal.pone.0195001
A Session on Taxonomy is organized by Nico SALMASO (IASMA-FMACH, Italy), Mitsunori IWATAKI (Univ. Tokyo, Japan) and Nicolas CHOMERAT (Ifremer, France), within ICHA2018 in Nantes (21 to 26 October 2018).
The taxonomy session will focus on recent advances in taxonomy and systematics of harmful algae and cyanobacteria. This will include characterization of new taxa, proposal of nomenclatural changes due to reinvestigations using molecular and phenotypic methods, molecular phylogeny, and studies of the genetic diversity of toxic species.
The deadline for abstract submission is 15 April 2018 !!!
See the list of session topics of ICHA2018.