Lotus Lofgren

@lotuslofgren.bsky.social

Fungal evolutionary ecology, genomics, bioinformatics, sci-art, code, data viz. She/her. Asst. Prof. at UC Berkeley.

SuilluCamp No. 2 is coming to Portland July 11, 2026! Join us for featured talks, networking, and community building around Suillus as a model genus for ectomycorrhizal biology, ecology, and evolution. Abstract submissions open now through June 1.

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Terpenoids are associated with cytokinin and auxin signaling during mycorrhiza formation in the Suillus bovinus–Pinus yunnanensis symbiosis - ScienceDirect

Terpenoids are associated with cytokinin and auxin signaling during mycorrhiza formation in the Suillus bovinus

Suillus bovinus is an ecologically significant wild ectomycorrhizal fungus that forms symbiotic associations with pine trees. Terpenoids are known to play a key role in interactions between fungi and plants. However, the molecular mechanisms underlying the effects of terpenoids on the formation of symbiotic associations with S. bovinus remain poorly understood. Here, we investigated the effect of S. bovinus terpenoids on root development and mycorrhizal formation in Pinus yunnanensis using physiological, transcriptomic, and phytohormone assays. Our findings revealed that terpenoids from S. bovinus were associated with alterations in the synthesis and signaling of cytokinin in P. yunnanensis, evidenced by changes in the expression of specific genes in the mevalonate synthesis pathway and signaling transduction, such as CKXs, AHP, and A-ARRs. Similarly, these terpenoids correlated with changes in auxin synthesis and signaling, indicated by modulated tryptophan levels and the expression of specific enzyme genes, such as GH3, AUX1, AUX/IAA, and SAUR. This suggests that terpenoids from S. bovinus may contribute to lateral root development and mycorrhizal formation in P. yunnanensis, potentially by influencing the relative levels of cytokinin and auxin. These results shed light on the potential involvement of terpenoids produced by S. bovinus in establishing symbiotic interactions between ectomycorrhizal fungi and their host plants, warranting further direct functional validation.

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Our study on a mycovirus that boosts fungal virulence is now out — and beautifully covered in this Behind the Paper piece by Amariliz Rivera Huge thanks for capturing the heart of the story so thoughtfully. @natmicrobiol.nature.com rdcu.be/eB9yg

Mycoviruses steer fungal fitness

Nature Microbiology - A mycovirus drives the fitness of the lung-infecting fungus Aspergillus fumigatus under stress, helping it to survive within immune cells, and thus shaping its pathogenesis.

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Inspired and overwhelmed after SuilluCamp No.1 - amazing science, nearly 50 attendees, and an outline for a new strategic plan for the International Suillus Consortium. I *could not be* more grateful for this community, or more excited for what we’re building together. Thank you #TeamSlime!

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Plz repost. Fresh Preprint led by @alexguyon.bsky.social When a pathogen pushes into a cell already occupied by a symbiotic fungus, things change. New membrane phospholipids at pathogen haustoria! This may impact immune receptor positioning & defense secretion. - And the roots are more resistant!

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Alex Guyon@alexguyon.bsky.social · last yr.

1/🚨 New preprint alert! Can mutualists and pathogens co-colonise the same living plant cell and what does that do to the plant membranes that surround these microbes?