Jirka Manuel Petersen
@drjmpetersen.bsky.social
Currently: Postdoc at Max Planck Institute (Bremen🇩🇪) working on virus-like bacteria in protists
PhD in Invertebrate pathology and Virology 🦀🦋
PhD in Invertebrate pathology and Virology 🦀🦋
🪲 Field note from Menorca 🇪🇸
Spotted a striking bloody-nosed beetle (Timarcha tenebricosa) on a roadside this morning. These flightless leaf beetles are slow-moving and exude a red defensive fluid (“nosebleed”) when disturbed - hence the name!
#Entomology #FieldNotes #Menorca #Beetles #insects
Spotted a striking bloody-nosed beetle (Timarcha tenebricosa) on a roadside this morning. These flightless leaf beetles are slow-moving and exude a red defensive fluid (“nosebleed”) when disturbed - hence the name!
#Entomology #FieldNotes #Menorca #Beetles #insects
October 15, 2025 at 7:28 AM
🪲 Field note from Menorca 🇪🇸
Spotted a striking bloody-nosed beetle (Timarcha tenebricosa) on a roadside this morning. These flightless leaf beetles are slow-moving and exude a red defensive fluid (“nosebleed”) when disturbed - hence the name!
#Entomology #FieldNotes #Menorca #Beetles #insects
Spotted a striking bloody-nosed beetle (Timarcha tenebricosa) on a roadside this morning. These flightless leaf beetles are slow-moving and exude a red defensive fluid (“nosebleed”) when disturbed - hence the name!
#Entomology #FieldNotes #Menorca #Beetles #insects
Rhododendron leafhopper (Graphocephala fennahi) from the rhododendron bush in front of my mom's house in Germany. I love the contrast of that turquoise and orange ✨️ #insect #science #leafhopper #photography #nature
September 16, 2025 at 12:20 PM
Rhododendron leafhopper (Graphocephala fennahi) from the rhododendron bush in front of my mom's house in Germany. I love the contrast of that turquoise and orange ✨️ #insect #science #leafhopper #photography #nature
Reposted by Jirka Manuel Petersen
Moss Medicines: The Next Revolution in #Biotech?
Plant biotechnologists are favoring #moss factories over other models to produce certain valuable #proteins.
Great article based on an interview with yours truly.
www.the-scientist.com/moss-medicin...
Plant biotechnologists are favoring #moss factories over other models to produce certain valuable #proteins.
Great article based on an interview with yours truly.
www.the-scientist.com/moss-medicin...
Moss Medicines: The Next Revolution in Biotech?
Plant biotechnologists are favoring moss factories over other models to produce certain valuable proteins.
www.the-scientist.com
August 4, 2025 at 9:05 AM
Moss Medicines: The Next Revolution in #Biotech?
Plant biotechnologists are favoring #moss factories over other models to produce certain valuable #proteins.
Great article based on an interview with yours truly.
www.the-scientist.com/moss-medicin...
Plant biotechnologists are favoring #moss factories over other models to produce certain valuable #proteins.
Great article based on an interview with yours truly.
www.the-scientist.com/moss-medicin...
Reposted by Jirka Manuel Petersen
Not unexpected but great to see this effect documented! ⬇️
Thanks for your work and your commitment to open science, @nicolasgaltier.bsky.social and team!
Thanks for your work and your commitment to open science, @nicolasgaltier.bsky.social and team!
Non-profit publishers (PLoS, Oxford, Cambridge) and publishers partnering a lot with academia (Wiley) are much more committed to open science than the others - MDPI being the worst by large. (4/5)
August 5, 2025 at 6:47 AM
Not unexpected but great to see this effect documented! ⬇️
Thanks for your work and your commitment to open science, @nicolasgaltier.bsky.social and team!
Thanks for your work and your commitment to open science, @nicolasgaltier.bsky.social and team!
Reposted by Jirka Manuel Petersen
Very proud of the work from lab members and collaborators that coincidentally came out today www.pnas.org/doi/10.1073/... and www.nature.com/articles/s41.... A bacterial and viral pathogen associated with mass mortality in seastars and oysters. @kevinzhong2006.bsky.social @rhizalyssa.bsky.social
August 5, 2025 at 12:44 AM
Very proud of the work from lab members and collaborators that coincidentally came out today www.pnas.org/doi/10.1073/... and www.nature.com/articles/s41.... A bacterial and viral pathogen associated with mass mortality in seastars and oysters. @kevinzhong2006.bsky.social @rhizalyssa.bsky.social
Reposted by Jirka Manuel Petersen
Get inspired to scale the challenges with our August issue!
Read about:
🦟Fighting malaria
🕹️Remote controlled probiotics
🍄Antifungal resistance
💉mRNA vaccines against bacteria
⚕️Yellow fever vaccine
🫧Archaeal ribosomes
🦠giardia-host interactions
and more.
www.nature.com/nmicrobiol/v...
#MicroSky
Read about:
🦟Fighting malaria
🕹️Remote controlled probiotics
🍄Antifungal resistance
💉mRNA vaccines against bacteria
⚕️Yellow fever vaccine
🫧Archaeal ribosomes
🦠giardia-host interactions
and more.
www.nature.com/nmicrobiol/v...
#MicroSky
August 1, 2025 at 1:58 PM
Get inspired to scale the challenges with our August issue!
Read about:
🦟Fighting malaria
🕹️Remote controlled probiotics
🍄Antifungal resistance
💉mRNA vaccines against bacteria
⚕️Yellow fever vaccine
🫧Archaeal ribosomes
🦠giardia-host interactions
and more.
www.nature.com/nmicrobiol/v...
#MicroSky
Read about:
🦟Fighting malaria
🕹️Remote controlled probiotics
🍄Antifungal resistance
💉mRNA vaccines against bacteria
⚕️Yellow fever vaccine
🫧Archaeal ribosomes
🦠giardia-host interactions
and more.
www.nature.com/nmicrobiol/v...
#MicroSky
Some photos from the scientific expedition I joined in the Austrian Alps 🏔️ with the @fischerlab.bsky.social team from @mpimarinemicrobio.bsky.social! We were hunting for viruses in high-altitude lakes 🦠🏞 Already excited to see what discoveries await in those samples 👨🔬 #science #postdoclife #virus
August 1, 2025 at 10:31 AM
Some photos from the scientific expedition I joined in the Austrian Alps 🏔️ with the @fischerlab.bsky.social team from @mpimarinemicrobio.bsky.social! We were hunting for viruses in high-altitude lakes 🦠🏞 Already excited to see what discoveries await in those samples 👨🔬 #science #postdoclife #virus
Argiope bruennichi spotted in Wageningen with its wrapped-up prey 🕸️
A stunning wasp spider with built-in warning colors🐝
#Wageningen #waspspider #arachnids #nature
A stunning wasp spider with built-in warning colors🐝
#Wageningen #waspspider #arachnids #nature
August 1, 2025 at 6:30 AM
Argiope bruennichi spotted in Wageningen with its wrapped-up prey 🕸️
A stunning wasp spider with built-in warning colors🐝
#Wageningen #waspspider #arachnids #nature
A stunning wasp spider with built-in warning colors🐝
#Wageningen #waspspider #arachnids #nature
Reposted by Jirka Manuel Petersen
Although large, elongated protrusions on a 247-million-year-old reptile fossil have some similarities to feathers, they are not feathers
go.nature.com/3J0pOLt
go.nature.com/3J0pOLt
Unusual fossil skin appendage is not a feather
Although large, elongated protrusions on a 247-million-year-old reptile fossil have some similarities to feathers, they are not feathers.
go.nature.com
July 28, 2025 at 7:46 AM
Although large, elongated protrusions on a 247-million-year-old reptile fossil have some similarities to feathers, they are not feathers
go.nature.com/3J0pOLt
go.nature.com/3J0pOLt
Reposted by Jirka Manuel Petersen
New #protein targets revealed in deadly #tick-borne #bacterium for future treatments ...
| #bacteria | #Ehrlichia | #ehrlichiosis | #antibiotic | Via @sciencex.bsky.social
| #bacteria | #Ehrlichia | #ehrlichiosis | #antibiotic | Via @sciencex.bsky.social
Study reveals new protein targets in deadly tick-borne bacterium for future treatments
Mizzou scientist discovers how a deadly bacterium spread by the lone star tick survives, bringing hope for new treatments.
medicalxpress.com
July 28, 2025 at 1:02 PM
New #protein targets revealed in deadly #tick-borne #bacterium for future treatments ...
| #bacteria | #Ehrlichia | #ehrlichiosis | #antibiotic | Via @sciencex.bsky.social
| #bacteria | #Ehrlichia | #ehrlichiosis | #antibiotic | Via @sciencex.bsky.social
Reposted by Jirka Manuel Petersen
The weather improved for our next tour in the Stubai Alps to Blaue Lacke (2287 m), Grünausee (2335 m), and Freiger See (2500 m), three mountain lakes above the treeline. Strenuous hikes alternated with wet & cold weather during filtration. #CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
@mpimarinemicrobio.bsky.social @erc.europa.eu
July 16, 2025 at 8:17 PM
The weather improved for our next tour in the Stubai Alps to Blaue Lacke (2287 m), Grünausee (2335 m), and Freiger See (2500 m), three mountain lakes above the treeline. Strenuous hikes alternated with wet & cold weather during filtration. #CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
@mpimarinemicrobio.bsky.social @erc.europa.eu
Reposted by Jirka Manuel Petersen
The next two lakes on the sampling tour were Upper and Middle Plenderlessee in Austria. We got lots of water from the lakes, and also from the skies... Dinoflagellates live here!
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
July 20, 2025 at 10:58 AM
The next two lakes on the sampling tour were Upper and Middle Plenderlessee in Austria. We got lots of water from the lakes, and also from the skies... Dinoflagellates live here!
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
Reposted by Jirka Manuel Petersen
We are now in the High Tauern National Park in Austria. Fantastic landscapes, warm-hearted people, but the lakes are not that easy to reach! With Oberer Schwarzhornsee at 2650 m elevation, we sampled the highest lake on the tour.
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
July 20, 2025 at 11:41 AM
We are now in the High Tauern National Park in Austria. Fantastic landscapes, warm-hearted people, but the lakes are not that easy to reach! With Oberer Schwarzhornsee at 2650 m elevation, we sampled the highest lake on the tour.
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
#CAPSOLUTION
@mpimarinemicrobio.bsky.social @erc.europa.eu
In 2022, we published The Naked Truth - my 1st PhD paper - reviewing nudiviruses and their links to baculo- & bracoviruses. The field has advanced quickly since, and I’m grateful for the ongoing interest and citations from the community🙏🐛🧬 #virology #arthropods #DNAviruses
🔗 doi.org/10.1016/j.ji...
🔗 doi.org/10.1016/j.ji...
July 24, 2025 at 11:50 AM
In 2022, we published The Naked Truth - my 1st PhD paper - reviewing nudiviruses and their links to baculo- & bracoviruses. The field has advanced quickly since, and I’m grateful for the ongoing interest and citations from the community🙏🐛🧬 #virology #arthropods #DNAviruses
🔗 doi.org/10.1016/j.ji...
🔗 doi.org/10.1016/j.ji...
Spotted Lasiocampa quercus (oak eggar) on a hike in the Stubaital 🇦🇹
These hairy caterpillars eventually become large moths with 4.5 to 7.5 cm wingspan!
#Stubaital #Insects #Lepidoptera #OakEggar #FieldFinds
These hairy caterpillars eventually become large moths with 4.5 to 7.5 cm wingspan!
#Stubaital #Insects #Lepidoptera #OakEggar #FieldFinds
July 16, 2025 at 11:54 AM
Spotted Lasiocampa quercus (oak eggar) on a hike in the Stubaital 🇦🇹
These hairy caterpillars eventually become large moths with 4.5 to 7.5 cm wingspan!
#Stubaital #Insects #Lepidoptera #OakEggar #FieldFinds
These hairy caterpillars eventually become large moths with 4.5 to 7.5 cm wingspan!
#Stubaital #Insects #Lepidoptera #OakEggar #FieldFinds
This first week of sampling alpine lakes in mountainous heights had everything... snow, sunburn, frogs, sheep, marmots, insects and crustaceans, and of course, preliminary insights on the microbes that live in those extreme environments. Looking forward to what we'll find in the coming weeks🧑🏼🔬🦠
July 15, 2025 at 7:20 AM
This first week of sampling alpine lakes in mountainous heights had everything... snow, sunburn, frogs, sheep, marmots, insects and crustaceans, and of course, preliminary insights on the microbes that live in those extreme environments. Looking forward to what we'll find in the coming weeks🧑🏼🔬🦠
Photos of a family of Long-eared Owls (Asio otus) I spotted during my first winter in the Netherlands 💤❄️
#AsioOtus #Owl #Birds #Netherlands #Nature #Photography
#AsioOtus #Owl #Birds #Netherlands #Nature #Photography
April 8, 2025 at 7:01 PM
Photos of a family of Long-eared Owls (Asio otus) I spotted during my first winter in the Netherlands 💤❄️
#AsioOtus #Owl #Birds #Netherlands #Nature #Photography
#AsioOtus #Owl #Birds #Netherlands #Nature #Photography
Caught this Common Kingfisher (Alcedo atthis) while I was floating past on a bamboo boat in Vietnam 🐦🇻🇳
The last time I saw one was back in snowy Germany - such a striking sight against the white, but no camera on me. This time, I was ready 📸💙
#Kingfisher #AlcedoAtthis #Vietnam #Photography #nature
The last time I saw one was back in snowy Germany - such a striking sight against the white, but no camera on me. This time, I was ready 📸💙
#Kingfisher #AlcedoAtthis #Vietnam #Photography #nature
April 4, 2025 at 8:18 AM
Caught this Common Kingfisher (Alcedo atthis) while I was floating past on a bamboo boat in Vietnam 🐦🇻🇳
The last time I saw one was back in snowy Germany - such a striking sight against the white, but no camera on me. This time, I was ready 📸💙
#Kingfisher #AlcedoAtthis #Vietnam #Photography #nature
The last time I saw one was back in snowy Germany - such a striking sight against the white, but no camera on me. This time, I was ready 📸💙
#Kingfisher #AlcedoAtthis #Vietnam #Photography #nature
Reposted by Jirka Manuel Petersen
Creepy-crawly courtship, a spacecraft landing on Earth, and aliens?
Check out this month's sharpest science shots, selected by Nature's photo team 📸
https://go.nature.com/4ccTrnz
Check out this month's sharpest science shots, selected by Nature's photo team 📸
https://go.nature.com/4ccTrnz
Incredible close-up of colourful crab spiders — March’s best science images
The month’s sharpest science shots, selected by Nature’s photo team.
go.nature.com
March 31, 2025 at 5:00 PM
Creepy-crawly courtship, a spacecraft landing on Earth, and aliens?
Check out this month's sharpest science shots, selected by Nature's photo team 📸
https://go.nature.com/4ccTrnz
Check out this month's sharpest science shots, selected by Nature's photo team 📸
https://go.nature.com/4ccTrnz
This Stork-billed Kingfisher (Pelargopsis capensis) flew over the water like a bolt of blue lightning ⚡💙
I’ve always loved kingfishers for their vibrant colours, but this one really takes the cake with its crimson-red beak!
#Bird #Kingfisher #nature #photography #Singapore #PelargopsisCapensis 🐦🌿📸
I’ve always loved kingfishers for their vibrant colours, but this one really takes the cake with its crimson-red beak!
#Bird #Kingfisher #nature #photography #Singapore #PelargopsisCapensis 🐦🌿📸
April 1, 2025 at 6:59 AM
This Stork-billed Kingfisher (Pelargopsis capensis) flew over the water like a bolt of blue lightning ⚡💙
I’ve always loved kingfishers for their vibrant colours, but this one really takes the cake with its crimson-red beak!
#Bird #Kingfisher #nature #photography #Singapore #PelargopsisCapensis 🐦🌿📸
I’ve always loved kingfishers for their vibrant colours, but this one really takes the cake with its crimson-red beak!
#Bird #Kingfisher #nature #photography #Singapore #PelargopsisCapensis 🐦🌿📸
New day, new butterfl—wait, not a butterfly? My bad. It’s a moth! 💛
Spotted lots of these vibrant yellow beauties in Vietnam and thought they were butterflies. But nope - Dysphania militaris, the False Tiger Moth. What a twist!
#insect #nature #photography #WhatIsThisBug #AskAnEntomologist #Vietnam
Spotted lots of these vibrant yellow beauties in Vietnam and thought they were butterflies. But nope - Dysphania militaris, the False Tiger Moth. What a twist!
#insect #nature #photography #WhatIsThisBug #AskAnEntomologist #Vietnam
March 29, 2025 at 7:30 AM
New day, new butterfl—wait, not a butterfly? My bad. It’s a moth! 💛
Spotted lots of these vibrant yellow beauties in Vietnam and thought they were butterflies. But nope - Dysphania militaris, the False Tiger Moth. What a twist!
#insect #nature #photography #WhatIsThisBug #AskAnEntomologist #Vietnam
Spotted lots of these vibrant yellow beauties in Vietnam and thought they were butterflies. But nope - Dysphania militaris, the False Tiger Moth. What a twist!
#insect #nature #photography #WhatIsThisBug #AskAnEntomologist #Vietnam
Starting small with a post of this butterfly I saw during my stay in Singapor. I believe this is the Common Rose butterfly (𝘗𝘢𝘤𝘩𝘭𝘪𝘰𝘱𝘵𝘢 𝘢𝘳𝘪𝘴𝘵𝘰𝘭𝘰𝘤𝘩𝘪𝘢𝘦), but please let me know if I'm wrong #insect #butterfly #nature #photography #AskAnEntomologist #WhatIsThisBug
March 28, 2025 at 9:54 AM
Starting small with a post of this butterfly I saw during my stay in Singapor. I believe this is the Common Rose butterfly (𝘗𝘢𝘤𝘩𝘭𝘪𝘰𝘱𝘵𝘢 𝘢𝘳𝘪𝘴𝘵𝘰𝘭𝘰𝘤𝘩𝘪𝘢𝘦), but please let me know if I'm wrong #insect #butterfly #nature #photography #AskAnEntomologist #WhatIsThisBug