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Rabern Simmons, PhD🔬💧🍄

@drrabern.bsky.social

DrRabern.com | @DrRabern on socials Curator of Fungi | Purdue Univ. Herbaria, Botany & Plant Pathology UVA Wise/UMaine alumnus Chytridiomycota | #chytrids | #Bd Collection of Zoosporic Eufungi at the U of Michigan | CZEUM He/Him | Posts mine

220 Posts564 Follower301 Folgt
Rabern Simmons, PhD🔬💧🍄@drrabern.bsky.social · 3mo ago

🔬💧🍄🌏🌍🌎 Chytrids are everywhere: diatom-parasitic #chytrids dominate pelagic fungal communities across 50 reservoirs. doi.org/10.1007/s113...

Chytrids are everywhere: diatom-parasitic chytrids dominate pelagic fungal communities across 50 reservoirs - Landscape and Ecological Engineering

Aquatic fungi play an important role in the material cycling, yet the factors structuring the spatial distribution of aquatic fungal communities remain poorly understood. In this study, we investigated fungal community composition across 50 reservoirs in Japan using DNA metabarcoding. Chytridiomycota (chytrids) dominated fungal communities in many reservoirs and constituted a core component of fungal assemblage. Notably, diatom-parasitic taxa were detected in all reservoirs, indicating their ubiquitous occurrence. In contrast, rare and transient components were mainly composed of Dikarya (Ascomycota and Basidiomycota), likely influenced by stochastic processes, such as episodic inputs from terrestrial habitats. Variation partitioning showed that environmental, spatial, and host-related factors each explained only a small proportion of variation in both the total fungal community and chytrids, with spatial effects being slightly stronger for total fungi, whereas environmental and host-related factors contributed relatively more to chytrid communities. Our results indicate reservoir fungal communities are characterized by a ubiquitous chytrid core and substantial unexplained variation reflecting stochastic and within-lake processes.

doi.org

Rabern Simmons, PhD🔬💧🍄@drrabern.bsky.social · 4mo ago

🍄🔬🌿😂🙏 "Arthur & Kriebel Herbarium, Department of Botany & Plant Pathology, Purdue University kindly permitted us to use isotype specimens of Puccinia abei and P. trabutii. We wish to express our sincere gratitude to the herbarium and all the members of the herbarium for their kind cooperation."

Life cycle of Puccinia species producing spermogonial and aecial stages on Persicaria odorata subsp. conspicua

Spermogonia and aecia were found on Persicaria odorata subsp. conspicua (Polygonaceae) in a reed field of Lake Kasumigaura, Ibaraki, Japan. Near these …

doi.org

Rabern Simmons, PhD🔬💧🍄@drrabern.bsky.social · 8mo ago

The John S. Karling Grad Student Research Award honors #Purdue University's former Chair of Biology and eclectic researcher of #plants and #fungi. Good luck to the applicants, and here's a link to learn more about this excellent investigator: www.drrabern.com/karling #Botany2026

John S. Karling Biography — D. Rabern Simmons, Ph.D.

A FORTUITOUS LIFE: JOHN SIDNEY KARLING (1897–1995)

drrabern.com

Botanical Society of America@botsocamerica.bsky.social · 8mo ago

BSA’s 2026 awards cycle is now open! Kaplan Lecture, Corresponding Member, two $10k dissertation awards, and Graduate Student Research Awards—all with early 2026 deadlines. Join or renew now to be eligible and take advantage of these opportunities. www.botany.org/home/awards.html #BSAawards

A green promotional graphic announcing that several BSA awards are now open. At the top, large white text reads: “These BSA Awards Are Now Open!” Listed below are five award opportunities, each preceded by a small white leaf icon: – Donald R. Kaplan Memorial Lecture Nominations Deadline Jan. 15, 2026 – Corresponding Member Awards Deadline Feb. 2, 2026 – $10,000 – Donald R. Kaplan Dissertation Award in Comparative Morphology Deadline Feb. 2, 2026 – $10,000 – Graduate Student Dissertation Award in Phylogenetic Comparative Plant Biology Deadline Feb. 2, 2026 – $1500 – Graduate Student Research Awards (J.S. Karling Graduate Student Research Award and AJ Harris Graduate Student Research Award) Deadline Feb. 16, 2026 At the bottom is the URL “www.botany.org/home/awards.html,” a QR code, and a close-up image of a bright green leaf. BSA partner logos appear in the lower-left corner.
Rabern Simmons, PhD🔬💧🍄@drrabern.bsky.social · 8mo ago

Learn more about Terry's mission to find the elusive alternate host of coffee leaf rust. ☕️🍃🔬🍄☠️ #mycomonday #herbarium #fungarium #fungi #coffee #rustfungi ag.purdue.edu/news/departm...

Terry Torres Cruz - Postdoctoral Scholar Feature

Terry Torres Cruz’s path to mycology – the study of fungi – has been guided by lots of curiosity – and a little bit of fate. Growing up in a rural part of Costa Rica, Torres Cruz wasn’t sure what she ...

ag.purdue.edu

Rabern Simmons, PhD🔬💧🍄@drrabern.bsky.social · 10mo ago

🎉🌎🍄🌍🍄🌏🎉 On this #WorldMushroomDay, educate yourself on the importance of #fungaria for the preservation and appreciation of our Opisthokont cousins. purdueag.exposure.co/herbaria

PRESERVING THE PAST FOR FUTURE DISCOVERY - Purdue University College of Agriculture

On the ground floor of Lilly Hall of Life Sciences, you will find the Purdue Herbaria, a collection of plant and fungi specimens, renowned for their vast biodiversity and recognized as the most import...

purdueag.exposure.co

Rabern Simmons, PhD🔬💧🍄@drrabern.bsky.social · 10mo ago

🧊❄️💧🔬🍄❄️🧊 The diversity and abundance of chytrids on the Greenland Ice Sheet – new quantitative data Some really cool (🤦) #chytrid stuff from @alexanesio.bsky.social, featuring Clydaea vesicula, which I named in 2009 after my mother Clyda Rae Simms Simmons. doi.org/10.21203/rs....

The diversity and abundance of chytrids on the Greenland Ice Sheet – new quantitative data

Zoosporic fungi of the Chytridiomycota phylum are lethal parasites of algae in Arctic freshwater and marine environments, and their presence has been confirmed as dominant fungi in various habitats on...

doi.org