Sandra Jämtgård

Forest soils are running short of nutrients as CO2 emissions rise Analyses of a Swedish tree-ring archive suggest that increased atmospheric carbon dioxide has lowered soil-nitrogen supply, which could cap carbon storage by land ecosystems.

Analyses of a Swedish tree-ring archive suggest that increased atmospheric carbon dioxide has lowered soil-nitrogen supply

go.nature.com/4aW5ztY

Rising atmospheric CO2 reduces nitrogen availability in boreal forests - Nature Nitrogen isotope tree-ring chronologies show that rising atmospheric CO2 has reduced nitrogen availability in boreal forests in Sweden, suggesting that elevated atmospheric CO2 is causing oligotrophication in boreal forests.

Nature research paper: Rising atmospheric CO2 reduces nitrogen availability in boreal forests

go.nature.com/3Op1Hca

Rising atmospheric CO2 reduces nitrogen availability in boreal forests - Nature Nitrogen isotope tree-ring chronologies show that rising atmospheric CO2 has reduced nitrogen availability in boreal forests in Sweden, suggesting that elevated atmospheric CO2 is causing oligotrophic...

Exciting news! Our paper, "Rising atmospheric CO2 reduces nitrogen availability in boreal forests” is out today in @nature.com @natureportfolio.nature.com @stefhupperts.bsky.social @rootsofthenorth.bsky.social
@michael-gundale.bsky.social

www.nature.com/articles/s41...

PhD opening
Join a collaborative, interdisciplinary project the Excellence Cluster Future Forests @uni-freiburg.de, working on CRISPR/Cas in poplar to understand how trees cope with climate stress.
Apply here: uni-freiburg.de/en/job/00004...
@dompsfr.bsky.social @biologyunifreiburg.bsky.social

#aurora #northerlight #umeå

Big congrats!!

isme-microbes.org/isme-scholar...

Scientists map aspen tree genes across seasons, creating a detailed genetic roadmap | slu.se Aspen trees follow a precise annual rhythm, shaped by the changing seasons. Researchers at UPSC have mapped this natural calendar at the genetic level, comparing trees grown outdoors and in the lab. T...

This study highlights the relevance of the findings made in controlled indoor experiments but also its limitations when translating it to what is happening out in nature, concludes Ove Nilsson@umeaplantsciencecentre.se
#research supported by Knut and Alice Wallenberg Foundation tinyurl.com/r2jytbm2

Eucalyptus grandis MYB‐Like and RAN‐Like Zinc Finger Proteins Display Dual Roles in Regulating Plant Immunity and Symbiosis Pathways Plant roots live in constant contact with diverse microbes in the soil. Plant fitness, therefore, relies on signaling pathways that mount an effective immune response against pathogens while fosterin...

Can you fool a plant into mis-identifying a beneficial symbiont? Yes you can! Check out our new paper where we use comparative transcriptomics to identify bi-functional signalling hubs controlling pathogenesis and mutualism in Eucalyptus. dx.doi.org/10.1111/ppl....

Aetiology and epidemiology of truffle rot in Australia : Find an Expert : The University of Melbourne <p> We have an open, fully funded PhD position on the causes and epidemiology of truffle rot in Australian orchards. The PhD student will be enrolled at the University of Melbourne under the supervision of Niloofar Vaghefi and Camille Truong from the Royal Botanic Gardens Victoria. </p> <p> The project will elucidate the biotic and abiotic causes of truffle rot across different regions and provide recommendations for improved management, while equipping the industry with diagnostic tools for early and reliable detection in soils. Activities include identifying affected farms and potential experimental sites in collaboration with growers, surveys of fungi, bacteria and oomycetes associated with truffle rot, and assessing the pathogenicity of commonly isolated microorganisms using glasshouse and field trials. </p> <p> <strong>Eligibility criteria:</strong> </p> <ul> <li>Hsc or Msc in biological sciences or a relevant field, experience in conducting both fieldwork and molecular biology work. </li> <li>Demonstrated writing and communication skills in English, including with stakeholders. </li> <li>Background and laboratory skills in mycology or plant pathology, as well as bioinformatics skills, are desirable. </li> <li>The successful candidate will be based in the Parkville campus in Melbourne and will require to travel for field experiments. </li> </ul>

Come to work with @niloofar232.bsky.social, @fungidownunder.bsky.social and myself on truffle rot in Australian orchards!

Fully funded PhD position - for more details and to apply:
findanexpert.unimelb.edu.au/opportunity/...

@plant-pathogens.bsky.social
@ausmycsoc.bsky.social

Reverse microdialysis of sucrose stimulates soil fungal and bacterial growth at the microscale - BMC Microbiology Background The rhizosphere is a critical microenvironment that plays key roles in plant nutrient availability, largely due to root interactions with rhizospheric microbes. However, we lack suitable me...

We have simulated root exudation with microdialysis to stimulate soil microbes.Lots of method optimization & hard work from all coauthors has gone into this, pushed over the finish line by Andreas Schneider. Really happy to see this published looking forward to what’s next! doi.org/10.1186/s128...

Great work! Exciting! 😄

Want to know more about plant microbial interactions in #boreal forest soil? Come by poster 263 & 394 today at #rhizosphere6

So great to be at the #Rhizosphere6
If curious about root exudation effects on nitrogen availability check out Anne Braunroth’s poster #117 today!
#microdialysis #boreal #soil

Postdoktor i utveckling av Ramanspektroskopi av jordmikrober Särskild ämnesbeskrivning Jordmånen är grunden för vårt samhälle och vår livsmedelssäkerhet, men den är fortfarande en av de sista domänerna i vårt moderna liv som teknologiseras. Jordmikr

Exciting postdoc opportunity with Milda Pucetaite and us in the Soilchip group: Become the spectroscopy expert in our multimodal fungal recognition project within our interdisciplinary VR research environment:) lu.varbi.com/what:job/job...

Artist Erik Olof Wiklund, student at Umeå Academy of Fine Arts, has together with staff scientist Nils Hauff pushed the boundaries of both technology and imagination – creating the world’s smallest Dala horse, the same size as a human red blood cell.

Artist Erik Olof Wiklund, student at Umeå Academy of Fine Arts, watch images of the Dala horse together with staff scientist Nils Hauff

Close-up of the Dala horse

Image of the Dala horse

(1/2) The world’s smallest Dala horse! 🧪

What happens when you combine an #ElectronMicroscope with an artist's vision?

At UCEM, a SciLifeLab unit at @umeauniversitet.bsky.social, the tiny Dala horse was created using a FIB-SEM.

Photos: Erik Olof Wiklund, Nils Hauff, Mattias Pettersson.
#FIBSEM

🚨 Deadline Alert (May 10)! We're hiring a tenure-track (akin to Assistant Prof) in Earth & Env Data Science @ Earth Sciences, Gothenburg. Apply now! 🌍📊 #JobOpening #AcademicJobs

Graphical abstract of a scientific paper showing drawings of a helicopter fertilizing a forest, a harvester cutting down a tree and a tree stump next to a pine sapling with ectomycorrhizal fungi on its roots. In a 2 panel figure data on the organic layer carbon stock in fertilized and unfertilized forests is shown. In the left panel right after clearcutting, where there is a larger carbon stock in the previously fertilized clearcuts. In the right panel 4-13 years after clearcutting, when there is no longer a significant difference in soil organic layer carbon stocks.

New paper out in @jappliedecology.bsky.social ! We studied carry-over effects of nitrogen fertilization in Swedish production forests. 🌲🧪🌍
🧵(1/7)
besjournals.onlinelibrary.wiley.com/doi/10.1111/...

@umeaplantscicentre.bsky.social

Rhizosphere 6 - Rooting for Earth - Early Career Travel Grant The Root Phenotyping Working Group of the International Plant Phenotyping Network (IPPN) is offering 4 travel support grants (500 EUR each) to early career researchers (students or <5 years post PhD) ...

❗Travel grants for early career researchers❗
The Root Phenotyping Working Group of the IPPN are offering 4 x 500 euro travel grants to support early career researchers traveling to the Rhizosphere 6 conference.
#Rhizosphere6

www.rhizo6.org/early-career...

Apoplastic barriers are essential for nodule formation and nitrogen fixation in Lotus japonicus Establishment of the apoplastic root barrier known as the Casparian strip occurs early in root development. In legumes, this area overlaps with nitrogen-fixing nodule formation, which raises the possi...

Finally!
Im so excited to present to culmination of many years of work from the fantastic Defeng Shen and some great collaborators. For details, I have made a digested thread below, but if you are more interested feel free to reach out (and read the paper of course).
www.science.org/doi/10.1126/...

Big congratulations Tonni!! 😊

SLU makes collages of their research images to use for marketing and decoration. Our image has been featured – can you spot it? To the left of the collage you can see stomata, mesophyll and pavement cells of a leaf from one of our research images taken by @siamsadoyle.bsky.social

Distinct foliar fungal communities in Pinus contorta across native and introduced ranges: evidence for context dependency of pathogen release - Scientific Reports Scientific Reports - Distinct foliar fungal communities in Pinus contorta across native and introduced ranges: evidence for context dependency of pathogen release

New paper alert. We compared foliar fungal communities in native and introduced populations for a pine species (Spoiler alert: fewer pathogens in exotic populations). Shout out to an excellent international network of collaborators. 👇👇👇

www.nature.com/articles/s41...

A curated soil fungal dataset to advance fungal ecology and conservation research in Australia and Antarctica Scientific Data - A curated soil fungal dataset to advance fungal ecology and conservation research in Australia and Antarctica

How do you study invisible organisms, such as fungi, from the environment?

We provide a benchmarked meta-barcoding dataset for soil fungi in Australia and Antarctica, combined with +100 predictor variables to fast-track data exploration, research and conservation.

rdcu.be/ebCeu

Postdoctoral Research Associate in Microbial Ecology Full time, 3-year fixed term position. Located at the School of Life and Environmental Sciences on the Camperdown Campus Opportunity to contribute to cutting-edge research and collaborate with leading...

We're hiring! 3 year #postdoc position in microbial ecology of gut and soil at University of Sydney. Suits folk with expertise in experimental microbial ecology (e.g. microbiome manipulation, chemostat measurements, metabolomics, metagenomics) tinyurl.com/4yn4ed5u

‘Heavyweight,’ an Acclaimed Narrative Podcast, Returns Pushkin Industries, the podcast company that will release the show, is betting that documentary-style audio programs can still win an audience.

We've got some big news: Heavyweight officially has a new home Pushkin Industries. Tell your friends, your exes… tell the strangers on the subway! And be sure to subscribe to the feed to hear about new episodes.
www.nytimes.com/2025/02/25/b...

We are hiring! Are you interested in lateral root development and the cellular processes that accommodate these newly formed organs? If yes, apply! We are recruiting a Post-doc (from May 2025) and a PhD student (from September 2025).
www.unine.ch/lbmc/jobs/

Join our lab in Amsterdam. We are looking for a Netherlands-based Technician/Analist (MBO-4 level) to apply advanced microscopy, imaging, and molecular techniques to study fungal-plant interactions. 2-yr position

See link for details. Applications due Feb 23rd.
workingat.vu.nl/vacancies/te...

A few days left to apply!