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#toxin

2 posts2 participants0 posts today
Public
Leibniz-HKI

🔬 Researchers from @LeibnizHKI and @unijena have discovered a hidden #toxin in some 🍄 #mushrooms that only develops its effect after preparation. It is a form of the already known #muscarin - the 4'-phosphomuscarine.

👉 read more about this in our latest press release
leibniz-hki.de/de/pressemittei

👉 read the original publication onlinelibrary.wiley.com/doi/ep

#mycology @dfg_public

picture of a brown mushroom with the toxin muscarine in the forest
Public
Torsten :verified: :verified:

Interessante #Dokumentation über das #Fischsterben in der #Oder 2022.

Der Mikroorganismus Prymnesium parvum sondert #Gift ab, das Membranen wie die Kiemen von Fischen zerstören kann. Begünstigt wird das Wachstum der Mikroalge durch das warme Salzwasser von polnischen Bergwerken. So wie es aussieht, wird #Polen die Salzeinleitung nicht kurzfristig stoppen.

#Toxin #Algen #Prymnesium
zdf.de/dokumentation/umwelt-cr

Umwelt CrimeDas Fischsterben in der OderUmweltdesaster in Mitteleuropa: Hunderttausendfach sterben 2022 Fische in der Oder. Die Ursachen sind lange unklar. Im Sommer 2024 wiederholt sich das Drama. Ist die Oder zu retten?
Public
Warren Currie 🦠🦐

Weekend #Plankton #Factoid 🦠🦐
Summer is when reports of Harmful Algal Blooms (#HABs) happen in freshwaters, almost always caused by #cyanobacteria. Commonly referred to as blue-green #algae because of a distinct phycocyanin pigment, they are in fact a type of photosynthetic #bacteria. Not all cyano species cause HABs, but some can produce several toxins, most commonly microcystin-LR, a hepatic (liver) #toxin dangerous to drinking #water, but is also *very toxic to dogs.
cbc.ca/news/canada/hamilton/bl

image/jpeg bright green water almost looking like paint washes against rocks on a shore. Photo Warren Currie CC BY-SA 4.0
Public *
Lukas VFN 🇪🇺

Education & research bring Rio’s #dolphins back from the brink of extinction
news.mongabay.com/2024/04/educ

"A recently published study found high #toxin concentrations in #GuianaDolphins in neighboring #SepetibaBay, which has significantly impacted the health of the population... So far, a protected environment in #Sepetiba Bay has helped stem #dolphin mortality, and efforts are being made in #Guanabara to clean up the bay"

A group of dolphins with a forested sea shore and mountains in the background
Public
Lukas VFN 🇪🇺

Infamous '#EagleKiller' #bacterium produces not one, but two #toxins phys.org/news/2023-09-infamous

The #freshwater #cyanobacterium #Aetokthonos hydrillicola produces highly #toxic dolastatin derivatives pnas.org/doi/10.1073/pnas.2219

"Even in low concentrations, this #toxin can destroy cells and is similar to substances currently used in cancer treatment. Two years ago, the same team established that the first toxin from the cyanobacterium is the cause of a mysterious disease among #BaldEagles in the USA."

Colony of A. hydrillicola bacterium
Public
Marc Robinson-Rechavi

Do you know that there are non-venomous spiders? This project started from a 1931 hand-drawn observation that Uloboridae spiders do not carry a functional venom system.
With histological, RNAseq and bioinformatics work led by the great Giulia Zancolli and master student Xiaojing Peng, we confirm that Uloboridae 🕷️ have lost venom glands , but find that they produce putative neurotoxins in the digestive gland. #EvoDevo #spider #Uloboridae #GeneExpression #venom #toxin
biorxiv.org/content/10.1101/20

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