Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱
Plant Science🌱 | Virology🦠 | Lab & CompBio 🧫👩🏽💻| SciComm💡| Biotech Science Advisor 🧬🧪
PhD Virology @w-u-r.bsky.social
Plant virologist studying multipartitevirus evolution and transmission🦠🌱🦟
linktr.ee/marcelleljohnson
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱A colorful start to 2026! 🌿 #ImageOfTheMonth M. Batsale (Plant Virology team, @inrae-bfp.bsky.social ) captured a Nicotiana benthamiana cell infected with turnip mosaic virus — peroxisomes (yellow), viral vesicles (magenta) & chloroplasts (blue).
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Someone got Cas9-Turbo to work. It's like basically Y1H but with proteomics. It however requires transgenic plant expressing Cas9-Turbo and gRNAs, which is still cumbersome for many plants that are not Arabidopsis. #PlantSciences
- New Brief Communication: "A CRISPR-based sequence proximity binding protein labelling system for scanning upstream regulatory proteins" rdcu.be/eZLUP CRISPR-based proximity labelling system to profile DNA-binding proteins such as PIF4 transcription factor .
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱I hope to see lots of plant virologists at the American Society for Virology Meeting. asv.org/2025/05/09/p...
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱🌾🦠 Trade, war, and viral rice A new study traces how Rice yellow mottle virus spread across Africa via caravan trade, seed exchange – and even WWI troop movements. Plant virus history is human history too. 🔗 doi.org/10.1371/jour... #PlantPathology #Rice #SciComm 🧪
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Wondering how plant virus detectives work? Ask our expert Paolo Margaria at #BookAScientist. appointments: www.leibniz-gemeinschaft.de/ueber-uns/ne... #sequencing #plantvirus #hightroughput
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱News from the battle between plants and viruses – our expert Samar Sheat summarises the success of fighting cassava diseases. book your session: www.leibniz-gemeinschaft.de/ueber-uns/ne... #cassava #plantvirus #pathogens #food
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱AlphaFold’s highly accurate structural models transformed protein biology. Nature reports on the efforts to create a similar system for RNA and why it’s a tougher nut to crack. #RNAsky 🧪
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Next week 200 virologists will arrive in Murcia, Spain for 'International Advances in Plant Virology 2025' :) - You can join us online to catch up on the science! - Thanks to our sponsors @bspp.bsky.social Loewe Diagostics and BIOREBA - Register as online delegate here -> cvent.me/mNNvzA
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱We cordially invite you to the Experimental Plant Biology conference #PSEBP2025 which will be held at the University of Warsaw. I will chair, together with Magda Krzymowska, a session on Plant Biotic Interactions. Registration opens in a few days. #plantsci psepb2025.pl
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱📢 Research engineer / Postdoc opportunity! Join our team to study plant-virus interactions in cereals. Gain expertise in plant molecular biology, advanced microscopy, CRISPR, and crop improvement. Apply here (jobs.inrae.fr/en/ot-25488), or contact Syed Zaidi (syed.zaidi@inrae.fr).
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱On the 8th of April, our #EUFunded #VIRTIGATION project will host a session on how to control the devastating #ToBRFV #PlantVirus at the prestigious #IAPV25 conference of @aabiologists.bsky.social. Join us at this key #PlantHealth conference in #Murcia: www.rtds-group.com/news/iapv-25...
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱I am very happy to announce that we solved the in-virus #cryoEM structure of the #HIV matrix protein. The structure helped us to resolve a long mystery in HIV biology. A🧵1/5 Read more in Nature: www.nature.com/articles/s41... 🧪
- Mature #HIV-1 contains >2000 copies of “spacer peptide 2”, but we didn’t know why. We now see that SP2 binds the matrix protein and triggers the change into its mature arrangement. Summary video from @margotriggi.bsky.social
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Some think, ‘I’m from a blue town/state, so writing an article won’t help.’ But it will. Explaining the local impacts of funding cuts gives supporters clear, concrete talking points so they can help advocate for science’s value to health, the economy, and society. It also rallies concern. 🧪🏠
- Join us! Science Homecoming helps scientists reconnect with communities by writing about the importance of science funding in their hometown newspapers. We’ve mapped every small newspaper in the U.S. and provide resources to get you started. Help science get back home 🧪🔬🧬 🏠 sciencehomecoming.com
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱There's a ~1000nt sub-viral RNA that shows up on every continent, and in humans, and it seems to have gone unnoticed! It has no sequence similarity to any database and codes for a wacky protein Super happy to finally share my thesis work on "Obelisks" tinyurl.com/yc54fzj9 #MicroSky #microbiomesky
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Hey all! I’m looking for a virologist who would be willing to zoom with my virology class May 6 between 10-11:15 to give a talk on your work and take questions from 9 undergraduates. I’d make them read a paper of your choice in prep for your talk. Please share in virology circles! #microsky
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Interested in antiviral immunity in plant stem cells? Finding new pathways that keep viruses out? We have an open PhD position in my lab @mpi-mp-potsdam.bsky.social, follow the link below if the topic piques your interest! Contact me by email if you have questions. #IMPRS #plantvirus #plantPhD
- Looking for a #PhDposition in #PlantScience ? Our #IMPRS @mpi-mp-potsdam.bsky.social and Uni Potsdam is currently recruiting! 📅 Apply by February 28, 2025 👉 www.mpimp-golm.mpg.de/IMPRS-PhD #PlantSciJobs #PhDjobs #PlantPhysiology #epigenetics #PlantMicrobe #compbio #PlantBiology #PlantSci #plantPhD
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Viroid-like “obelisk” agents are widespread in the ocean and exceed the abundance of RNA viruses in the prokaryotic fraction | The ISME Journal | Oxford Academic academic.oup.com/ismej/advance-artic…
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱onlinelibrary.wiley.com/doi/10.1111/... In conversation with Rosa Lozano-Duran from @geminiteamlab.bsky.social. #PlantScience #PlantImmunity #PlantViruses
- 𝐈𝐧 𝐜𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧 𝐰𝐢𝐭𝐡: ROSA LOZANO-DURAN @ZMBP_Tuebingen In this beautiful interview by @gdoblasveronica, @geminiteamlab.bsky.social shares her experiences in science and gives her advice to ECR: ENJOY WHAT YOU DO, BE RESILIENT, and FIND YOUR WAY 🌟 #curiositydrivesdiscovery 🌱🦠
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Our congratulations also go to Daniel J. Leybourne for being selected as runner-up in the #BiologyLetters #ECR Competition. Read Daniel’s paper “Genetic diversity in vector populations influences the transmission efficiency of an important plant virus” here: ow.ly/vrJo50UCok8
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Find more #STL #PlantScience and #AgTech Innovators here! DM us if you want to be added to the starter pack. go.bsky.app/MxfEHdo
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Our framework explaining why ecological interactions change between contexts is out in Ecology Letters! A lovely collaboration with @saramitri.bsky.social which provides experimentally-testable links between the physiology and ecology of microbes. onlinelibrary.wiley.com/doi/10.1111/...
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Let's try this BlueSky ! A dedicated account to highlight the #womeninSTEM and to give them the visibility they deserve. Objective: 1,000 portraits of women scientists from all fields, all nationalities and all time periods.
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱New year, new paper! Now published in @nature.com. We identified and characterised diverse immune cell states in plants under pathogen attack. My postdoc work in the Ecker lab at @salkinstitute.bsky.social. A thread (0/n) #PlantScience www.nature.com/articles/s41...
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Scientists are starting to study—and debate—how the unique features of Bluesky might affect discussions of research and workplace culture, and efforts to engage with the public. scim.ag/428RTYG
- Looks like a great plant virology meeting. #plantvirus #plantvirology
- Abstract submission and registration OPEN for 'International Advances in Plant Virology' (IAPV25). 📆 April 8-11 2025 Murcia 🇪🇸 Come along for 1,2,3 or 4 days :) Awesome selection of invited speakers AND lots of space for submitted presentations! #plantscience web.cvent.com/event/f187fa...
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Registration is now open! Join us for the 2025 #EarlyCareerShowcase and explore the future of our field. This exciting event will celebrate innovation in #PlantScience and #PlantMicrobe interactions. Free for members! Learn more and save your spot today: bit.ly/4funAyV
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱great article about the devaluation of absolutely anything where women achieve 50%. which is a thing.
- 🌿🦠Hey plant virologists! I've made a plant virology feed to collect plant virology research, publications, events and jobs. Looking forward to see what everyone is up to. 🌿🦠 bsky.app/profile/did:...
- Great opportunity for aspiring plant virologists! #Virology #PlantScience
- We are looking for suitable candidates to apply for a INPhINIT fellowship. Our current interests are focused on understanding the evolution of plant virus interactions and on the role of crosskingdom RNAi in plant-fungus symbiotic interactions and their evolution. shorturl.at/0FOSx shorturl.at/UbbgT
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱🌱 early-career scientists: don't miss Frontiers and Techniques in Plant Science at CSHL, June 26–July 17, 2025. 🗓 Apply by March 15, 2025 This immersive course covers cutting-edge topics & methods in plant biology. 🌾 Hands-on labs + expert talks await! meetings.cshl.edu/courses.aspx...
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱Victim of its success the Virology and Virus-Host interaction starter pack got packed (150 users) so I created #2 ! Reach out if you want to be included ! go.bsky.app/6bSDmrWat://did:plc:qyclmerxxlqtz6a2rotf5ehk/app.bsky.graph.starterpack/3lb7tqogas72v
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱As a grant reviewer, what do you really wish people would do/not do? Not big things, like find a significant question/innovative method/be consistent with aims Little things, like bold each acronym the first time it’s used. Add your pet peeves ⬇️ #HiddenCurriculum #Research
- Great resource for plant virologists on Bluesky.
- 🧪 go.bsky.app/426v1X8 Lots of Plant Virologists have migrated to Blue Sky! Check out the latest list of scientists, publications, and events. Let me know if you want to be added!at://did:plc:e6vdf2bgffbcdzkbllvuzcxp/app.bsky.graph.starterpack/3lbkjz4dqoh25
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱📢 This is my first post! 🧪 We are recruiting a postdoc to work on modeling vaccination strategies for epizootic haemorrhagic disease, transmitted by midges. Duration ~ 18 months Start ~ spring 2025 Please share & if interested find more info here: iddjobs.org/jobs/constra...
- Awesome resource for anyone looking to connect with biotech and VC on Bluesky!
- The VC and Startup Universe starter pack hit a cap of 150 people so I created also a second list linked below. go.bsky.app/5ehEyfoat://did:plc:5upmj7tak5g6ncuctj2h2lly/app.bsky.graph.starterpack/3lbbarmzqow2p
- Reposted by Marcelle Johnson, PhD 🇿🇦 🇸🇪 🇳🇱2x professorships available in Manchester Institute of Biotechnology including in Microbial Engineering area (broadly defined to include microbiomes, environmental biotech etc) — join us! www.jobs.manchester.ac.uk/Job/JobDetai...
