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1pantunes.bsky.social
Pedro Madeira Antunes 🇨🇦🇵🇹
@1pantunes.bsky.social
500 followers 530 following 54 posts
Professor | #Soil/plant ecol | Canada Research Chair | Int. Mycorrhizal Society Director
https://pantunes4.wixsite.com/plantsoilecologylab
https://substack.com/@pantunes?utm_source=user-me
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1pantunes.bsky.social
New paper out today - Microplastic fibers, not bulkier shapes, disrupt soil carbon cycling, cutting CO₂ emissions ~25%. Grateful for the collaboration with lead author Serra-Willow Buchanan and Marie Sauvadet, Ryan Prosser and Kari Dunfield.
doi.org/10.1093/etoj...
October 6, 2025 at 10:10 PM
1pantunes.bsky.social
The final version in an issue is now available open source. dx.doi.org/10.1111/nph....
Fluid mechanics within mycorrhizal networks: exploring concepts, traits, and methodologies
Mycorrhizal fungi form hyphal networks for water and solute transport between soil and plant roots. Trait-based research on these organisms typically focuses on spores and resource exchange structure...
dx.doi.org
October 2, 2025 at 9:21 AM
Reposted by Pedro Madeira Antunes 🇨🇦🇵🇹
newphyt.bsky.social
#Viewpoint: A critical reassessment of the novel weapons hypothesis and allelopathy as an adaptive strategy that facilitates #PlantInvasion

Robert Colautti & Pedro Madeira Antunes
👇

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

#LatestIssue #PlantScience
Illustration of a simple allelopathy model that considers the ith individual of an invasive species and the jth individual of a native competitor, such as the North American invasive plant Alliaria petiolata (garlic mustard), shown on the left, and the native Acer saccharum (sugar maple), on the right.
September 22, 2025 at 4:19 AM
Reposted by Pedro Madeira Antunes 🇨🇦🇵🇹
colauttilab.bsky.social
Now published in @newphyt.bsky.social, @1pantunes.bsky.social and I review evidence for the "Novel Weapons Hypothesis" and the role of allelopathy during invasion. Bottom line: there is very good reason to be skeptical.
dx.doi.org/10.1111/nph....
Experimental approaches and key outcomes supporting the Allelopathy Postulates relevant to competitive interactions and the novel weapons hypothesis (NWH). Numbers in red correspond to the 11 postulates summarized in Table 1. The full experimental framework comprises five sequential steps: (a) assess the natural concentrations of a potential allelopathic compound; (b) demonstrate its ability to suppress native vegetation; releasing resources that enhance growth and reproduction of the invader (e.g. light, nutrients, water); (c) confirm that the compound has limited autotoxicity to the invading species; (d) investigate the biogeographical basis of the allelopathic compound as a ‘novel weapon’ by demonstrating that native communities coevolving with the invader in its home range are significantly more resistant to the allelopathic compound compared to those in the introduced (away) range; (e) confirm that genotypes producing higher concentrations of the allelopathic compounds experience a fitness cost in the context of intraspecific competition but gain a fitness advantage under interspecific competition. Investigating the role of soil-mediated interactions (11) is transversal across different components of the framework
September 18, 2025 at 8:20 PM
1pantunes.bsky.social
The many hours I spent idealizing and drawing this diagram for this review paper are condensed into 25 seconds here. nph.onlinelibrary.wiley.com/doi/10.1111/...
August 27, 2025 at 3:01 AM
1pantunes.bsky.social
The many hours spent idealizing and drawing this diagram for this review paper are condensed into 25 seconds here. nph.onlinelibrary.wiley.com/doi/10.1111/...
August 27, 2025 at 3:00 AM
1pantunes.bsky.social
New paper out today. Fluid mechanics within mycorrhizal networks: exploring concepts, traits, and methodologies

I ask: How do fungal networks move water, nutrients and signals underground?
Why does this matter? See thread ⬇️

nph.onlinelibrary.wiley.com/doi/10.1111/...
Fluid mechanics within mycorrhizal networks: exploring concepts, traits, and methodologies
Mycorrhizal fungi form hyphal networks for water and solute transport between soil and plant roots. Trait-based research on these organisms typically focuses on spores and resource exchange structure...
nph.onlinelibrary.wiley.com
August 26, 2025 at 11:11 AM
Reposted by Pedro Madeira Antunes 🇨🇦🇵🇹
j-karst.bsky.social
New paper: ‘Soil inoculation improves tree seedling growth in substrates containing bitumen, but the effect varies by species and inoculum source’ led by James Franklin @jamesfranklin, a past PhD from my group. 🧵
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Soil inoculation improves tree seedling growth in substrates containing bitumen, but the effect varies by species and inoculum source
Soil inoculation improved tree seedling growth in some substrates containing bitumen, but the effect varied by species and inoculum source. Inoculum from extreme environments, such as the abandoned o...
besjournals.onlinelibrary.wiley.com
August 22, 2025 at 6:04 PM
Reposted by Pedro Madeira Antunes 🇨🇦🇵🇹
j-karst.bsky.social
Thanks James Franklin, @1pantunes.bsky.social and Brian Lanoil for a great collaboration!
August 22, 2025 at 6:11 PM
1pantunes.bsky.social
Pleated inkcap (Parasola plicatilis) fruiting bodies rise, spread their spores and decay within 24 hours after a rainfall. They are very small and delicate. These middle-aged ones (7-10 hours old) were around our field today.
August 13, 2025 at 1:49 PM
1pantunes.bsky.social
Important to be aware.

The entities enabling scientific fraud at scale are large, resilient, and growing rapidly | PNAS www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
August 7, 2025 at 3:30 AM
1pantunes.bsky.social
If you belong to an organization committed to biodiversity and the environment, consider sponsoring the International Conference on Mycorrhiza. More than an excellent program, the organizers have an impressive sustainability strategy. See sponsor packages: icom2026.org#goto-sponsor
ICOM 2026
Visit the post for more.
icom2026.org
August 7, 2025 at 12:37 AM
Reposted by Pedro Madeira Antunes 🇨🇦🇵🇹
mycorrhizaims.bsky.social
Our new newsletter is now published!
Dig into the latest updates on IMS’s 20th anniversary, ICOM2026 preparations, our new website & logo, top 10 research papers, and upcoming events. Read more at mycorrhizas.org/news. Stay connected! #Mycorrhiza
July 23, 2025 at 7:17 PM
1pantunes.bsky.social
The latest research from our lab is out today—a collaboration with @carlosbarreto.bsky.social, and students Gabrielle Faucher and Katja Karhi.

Lesser periwinkle (Vinca minor L.) invasion alters the composition of ... www.sciencedirect.com/science/arti...
Lesser periwinkle (Vinca minor L.) invasion alters the composition of soil invertebrate communities in two mixed deciduous forests
Invasive plant species threaten biodiversity and ecosystem stability, yet their impacts on soil invertebrate communities remain understudied globally.…
www.sciencedirect.com
July 30, 2025 at 5:53 PM
1pantunes.bsky.social
Very happy to announce the very first M.Sc. in Biology thesis defence @algomau.bsky.social . This moment marks a transformative milestone in scientific research, placing our school on the map as a rising hub for advanced knowledge and discovery.
July 30, 2025 at 2:30 AM
1pantunes.bsky.social
A THREAD: Our new paper, with @colauttilab.bsky.social, critically assesses whether allelopathy truly gives invaders their edge. Key takeaways 👇🧵

doi.org/10.1111/nph....
A critical reassessment of the novel weapons hypothesis and allelopathy as an adaptive strategy that facilitates plant invasion
Plants have evolved an assortment of chemical adaptations that integrate environmental cues with developmental processes to regulate growth and reproduction. A subset of these phytochemicals may be c....
doi.org
July 30, 2025 at 1:47 AM
1pantunes.bsky.social
Our latest work with @colauttilab.bsky.social is out today!
Always great to work with Rob, one of the best evolutionary biologists out there. We hope this work sparks some important conversations on allelopathy and reproducibility in ecological research.
nph.onlinelibrary.wiley.com/doi/10.1111/...
July 29, 2025 at 2:58 PM
Reposted by Pedro Madeira Antunes 🇨🇦🇵🇹
colauttilab.bsky.social
Coming soon (with @1pantunes.bsky.social)...
A data matrix summarizing eleven Allelopathy Postulates across 41 studies testing the Novel Weapons Hypothesis (NWH). Of the 451 total cells, 351 are shaded grey, indicating that most postulates were untested in most studies. Of the remaining 100, 78 are shaded green, indicating support for the NWH while the remaining 22 indicate evidence contrary to the NWH or mixed support.
July 9, 2025 at 3:30 PM
1pantunes.bsky.social
The website of the international conference on mycorrhizas is now live. icom2026.org
July 10, 2025 at 9:42 AM
Reposted by Pedro Madeira Antunes 🇨🇦🇵🇹
mycorrhizaims.bsky.social
🌱 Hello, BlueSky! 👋
We’re excited to join this space and connect with new communities!
To celebrate, we’re launching our new logo and completely redesigned website
Now available in English, Spanish & French
Take a look 👉 mycorrhizas.org
We’re just getting started here — follow us for updates!
July 3, 2025 at 9:31 PM
1pantunes.bsky.social
Dual mycorrhizae interact with soil nutrients to influence Pinus strobus establishment in northern hardwood forests cdnsciencepub.com/doi/abs/10.1...
Dual mycorrhizae interact with soil nutrients to influence <i>Pinus strobus</i> establishment in northern hardwood forests
Many tree species form dual mycorrhizal symbioses, arbuscular mycorrhizae (AM) and ectomycorrhizae (EM), especially at the seedling stage, but the effect of soil nutrient availability in shaping these...
cdnsciencepub.com
June 24, 2025 at 11:45 AM
1pantunes.bsky.social
What will the forests northern Ontario look like in the future?

We’ve been chasing this question for 3 years; thanks to support from NSERC, MNR and Algoma Uni.

Today was a good one; lots of progress, and surprisingly few mosquitoes. I can’t believe I get paid to work in this beautiful place.
June 1, 2025 at 1:54 AM
1pantunes.bsky.social
New paper out in New Phytologist! We show that how we define species in AM fungi is flawed — and propose a better, reproducible approach. Grateful to my brilliant co-authors Nicolas Corradi and Franco Magurno for bringing me in and pushing my thinking.
nph.onlinelibrary.wiley.com/doi/full/10....
A call for reform: implementing genome‐based approaches for species classification in Glomeromycotina
In arbuscular mycorrhizal (AM) fungi, only c. 370 species have been formally described despite these fungal organisms having coevolved with plants for hundreds of millions of years. In contrast to th...
nph.onlinelibrary.wiley.com
April 16, 2025 at 12:43 PM
1pantunes.bsky.social
Our latest growth chamber experiment with trees is looking good. We’re looking at plant-soil interactions in Canada’s northern regions.
April 11, 2025 at 10:13 PM
1pantunes.bsky.social
This bald eagle juvenile went over my head this morning.
April 2, 2025 at 9:56 PM