From frog saunas to medicated baths: Scientists battle a global amphibian plague

What may sound like a spa day for frogs is all part of a global effort to fight the chytrid fungus — the deadly pathogen responsible for what scientists have called the largest disease-driven loss of vertebrates in recorded history.

CNN

Chytridiomykóza - nemoc, která zabíjí obojživelníky ve velkých počtech. Čtvrteční příspěvek do Žabího týdne 2025 se celý zabýval touto smrtící infekcí.

#frogs #frogweek2025 #conservation #amphibians #chytridiomycosis #chytrid #fungus #disease #infection

https://blogorgonopsid.blogspot.com/2025/03/chytridiomykoza-velky-zabijak-zab-v.html

Chytridiomykóza, velký zabiják žab, v číslech

Dnešek, 20. březen, je Světovým dnem žab, každoroční oslavou bezocasých obojživelníků z řádu Anura a příležitostí upozornit na řadu problém...

Chytridiomycosis - the disease that kills amphibians in large numbers. Thursday's contribution to Frog Week 2025 was all about this deadly infection.

#frogs #frogweek2025 #conservation #amphibians #chytridiomycosis #chytrid #fungus #disease #infection

https://blogorgonopsid.blogspot.com/2025/03/chytridiomykoza-velky-zabijak-zab-v.html

Chytridiomykóza, velký zabiják žab, v číslech

Dnešek, 20. březen, je Světovým dnem žab, každoroční oslavou bezocasých obojživelníků z řádu Anura a příležitostí upozornit na řadu problém...

Eukaryotic MAGs recovered from deep metagenomic sequencing of the seagrass, Zostera marina, include a novel chytrid in the order Lobulomycetales

https://www.biorxiv.org/content/10.1101/2025.02.11.637735v1

#MAGs #phylogenetic #chytrid #fungi

Eukaryotic MAGs recovered from deep metagenomic sequencing of the seagrass, Zostera marina, include a novel chytrid in the order Lobulomycetales

Fungi play pivotal roles in terrestrial ecosystems as decomposers, pathogens, and endophytes, yet their significance in marine environments is often understudied. Seagrasses, as globally distributed marine flowering plants, have critical ecological functions, but knowledge about their associated fungal communities remains relatively limited. Previous amplicon surveys of the fungal community associated with the seagrass, Zostera marina have revealed an abundance of potentially novel chytrids. In this study, we employed deep metagenomic sequencing to extract metagenome-assembled genomes (MAGs) from these chytrids and other microbial eukaryotes associated with Z. marina leaves. Our efforts resulted in the recovery of five eukaryotic MAGs, including a single fungal MAG in the order Loubulomycetales (65% BUSCO completeness), three MAGs representing diatoms in the family Bacillariaceae (93%, 70% and 31% BUSCO completeness) and a single MAG representing a haptophyte algae in the genus Prymnesium (40% BUSCO completeness). Whole-genome phylogenomic assessment of these MAGs suggests they all largely represent under sequenced, and possibly novel eukaryotic lineages. Of particular interest, the chytrid MAG was placed within the order Lobulomycetales, consistent with the identity of the dominant chytrid from previous Z. marina amplicon survey results. Annotation of this MAG yielded 5,650 gene models of which 77% shared homology to current databases. With-in these gene models, we predicted 121 carbohydrate-active enzymes and 393 secreted proteins (103 cytoplasmic effectors, 30 apoplastic effectors). Exploration of orthologs between the Lobulomycetales MAG and existing Chytridiomycota genomes have revealed a landscape of high-copy gene families related to host recognition and interaction. Further machine learning analyses based on carbohydrate-active enzyme composition predict that this MAG is a symbiont. Overall, these five eukaryotic MAGs represent substantial genomic novelty and valuable community resources, contributing to a deeper understanding of the roles of fungi and other microbial eukaryotes in the larger seagrass ecosystem. ### Competing Interest Statement Jonathan A. Eisen is on the Scientific Advisory Board of Zymo Research, Inc. Jason E. Stajich is a scientific consultant for Michroma, Inc.

bioRxiv

Watch: How A Frog Is Helping Scientists Understand A Deadly Amphibian Pandemic

"Recent field experiments focusing on a tiny, charismatic frog in southeastern Brazil are beginning to shed light on a disease that has decimated amphibian populations around the world"

by @grrlscientist via @medium

#ChytridFungus #chytrid #pandemic #Amphibian #frogs #toads #video #SciComm https://medium.com/gardening-birding-and-outdoor-adventure/watch-how-a-frog-is-helping-scientists-understand-a-deadly-amphibian-pandemic-b98cb902d5d9

Watch: How A Frog Is Helping Scientists Understand A Deadly Amphibian Pandemic

Recent field experiments focusing on a tiny, charismatic frog in southeastern Brazil are beginning to shed light on a disease that has decimated amphibian populations around the world. The diminutive…

Gardening, Birding, and Outdoor Adventure

Frog saunas! Simple, mini greenhouses keep frogs warm in winter and help them fight off deadly fungal infections. Bonus points for the researcher being called Dr Waddle.

#Frogs #Conservation #Environment #Wildlife #Science #Chytrid

https://www.abc.net.au/news/2024-07-27/frog-saunas-at-sydney-olympic-park-fight-chytrid-fungus/104065452

Frog saunas in old Sydney brickpit lead fight against killer fungus

At least 90 species of frogs have been made extinct by chytrid fungus worldwide. But a program to protect other frogs with  "saunas" made of bricks is proving promising.

ABC News
#Frog 'saunas' help #endangered #frogs survive the devastating impacts of a deadly fungal disease
When frogs shifted to hotspot shelters, #chytrid infections were reduced significantly.
"The whole thing is like a mini med spa for frogs," says Dr. Waddle.
"In these simple little hotspots, frogs can go and heat up their bodies to a temperature that destroys the infections." https://phys.org/news/2024-06-frog-saunas-endangered-frogs-survive.html
Frog 'saunas' help endangered frogs survive the devastating impacts of a deadly fungal disease

Macquarie University researchers have used heat to develop a simple and effective way to help endangered frogs survive the devastating impacts of a pandemic sweeping multiple species.

Phys.org

‘Frog saunas’ could help save endangered species from the devastating chytrid fungus https://theconversation.com/our-frog-saunas-could-help-save-endangered-species-from-the-devastating-chytrid-fungus-231605

These “frog saunas” allow affected amphibians to warm up and bake off their infections and are so simple you can build one using supplies from the hardware store. 🐸 #Frogs #Amphibians #Chytrid #Extinction #Wildlife #Nature

Our ‘frog saunas’ could help save endangered species from the devastating chytrid fungus

Our purpose-built “frog saunas” allow amphibians to warm up in winter and bake off chytrid infections. You can even DIY and build a frog sauna for your own backyard with our step-by-step guide.

The Conversation

Frog ‘Saunas’ Help Endangered Frogs Survive A Deadly Fungal Pandemic, via Macquarie University + University of Melbourne, published by Nature

by @GrrlScientist

#amphibians🐸 #chytrid #mycology #ecology🌏 #conservation💉 #epidemiology🛟 #SciComm🧪 https://www.forbes.com/sites/grrlscientist/2024/06/28/frog-saunas-help-endangered-frogs-survive-a-deadly-fungal-pandemic/

Frog ‘Saunas’ Help Endangered Frogs Survive A Deadly Fungal Pandemic

Frog saunas are a simple, low-cost solution to provide warm conditions to enable frogs to clear the deadly chytrid infection and remain disease free.

Forbes