Cristian Riquelme
cristianriquelme.com
Cristian Riquelme
@cristianriquelme.com
MSc | Biologist
Curator at #Mycotheca (MYCL)
cristianriquelme.com
Reposted by Cristian Riquelme
Out today in @nature.com: our review on how single cells evolve into multicellular organisms. With Ozan Bozdag, @kaitong25.bsky.social, Peter Yunker, and @matthewherron.bsky.social.

rdcu.be/9ZuiKow9twKa

For an overview, check out the video below.
October 7, 2026 at 8:58 PM
Sobre «esclerófilo» y «esclerofilo».

Font Quer, P. (Ed.). (2001). Diccionario de botánica (2nd ed.). Ediciones Península.
September 22, 2026 at 5:13 PM
Check out version 1.0 of mycoBaseCL, an updated catalog of the Fungi of Chile, on @gbif.org.

doi.org/10.15468/qz3...
mycoBaseCL
mycoBaseCL is an updated catalogue of the Fungi of Chile that follows the Darwin Core standard.To suggest a change to an entry in mycoBaseCL, please fill out the following form.Links to other publicly...
doi.org
September 18, 2026 at 12:38 AM
Ladies and gentlemen, please welcome Curtis Gates Lloyd.

Lloyd, C. G. (with Stevenson, J. A.). (1909). Mycological writings of C. G. Lloyd (Vol. 3). doi.org/10.5962/bhl....
September 16, 2026 at 6:06 PM
Reposted by Cristian Riquelme
There are just over 320 iNaturalist observations of the Chilean Black Snail (Macrocyclis peruvianus), the largest land snail in Chile and the only living species in its genus.

Read Pablo's story: www.inaturalist.org/blog/135712-...
September 9, 2026 at 2:02 PM
The first MYCL DNA Barcode Data Release, made possible by paid members on Patreon.

www.patreon.com/mycotheca/po...
MYCL DNA Barcode Data Release Part 1 – MYCL000264 | Mycotheca
We now have the first DNA barcode sequence for Mycotheca (MYCL) thanks to the monthly contributions from our Patreon paid members. The DNA e
www.patreon.com
September 8, 2026 at 6:16 PM
The Behind the Observation section of the @inaturalist.bsky.social blog, featuring notable users from Chile.

www.inaturalist.org/blog/135712-...
Chile's largest land snail, to scale
Behind the Observation  ·  Macrocyclis peruvianus The Chilean Black Snail (Macrocyclis peruvianus) is the only living species in its genus, and the largest land snail in Chile. It’s also a snail that...
www.inaturalist.org
September 6, 2026 at 11:20 PM
Reposted by Cristian Riquelme
Support #Mycotheca (MYCL) on Patreon for just 3 USD a month.

www.patreon.com/mycotheca
Mycotheca — Documenting and preserving Chilean funga
Get more from Mycotheca on Patreon. Documenting and preserving Chilean funga. Support Mycotheca and get exclusive access to their work.
www.patreon.com
June 28, 2026 at 11:51 PM
Reposted by Cristian Riquelme
FunDive designed a questionnaire with the goal to better understand motivations behind individuals joining and remaining engaged in #citizenscience projects in #mycology! Please complete it if you are a volunteer or share/forward to individuals who are: docs.google.com/forms/d/e/1F...
Survey on motivation factors in volunteer mycology projects
Dear Respondent, This questionnaire was designed to investigate the primary reasons why individuals join and remain engaged in citizen science mycology projects. It aims to capture the motivations an...
docs.google.com
August 18, 2026 at 8:17 AM
August 7, 2026 at 11:17 PM
Reposted by Cristian Riquelme
🍄🌱 What does it mean to maintain a living fungal collection?

Maintaining the world's largest living collection of AM fungi is a daily commitment. Take a look at what it takes to keep this living collection thriving.

Learn more & support INVAM:
launchku.org/campaigns/su...

#Fungi #Mycorrhizae
July 21, 2026 at 1:37 AM
Reposted by Cristian Riquelme
A message for every biologist, especially those not studying microbes.

We must advance frameworks that are built on the true foundation that microorganisms are part of every cellular assemblage.

Holobiont biology indisputably adds that lexicon and fundamental dimension to the visible world.
July 2, 2026 at 7:26 PM
Support #Mycotheca (MYCL) on Patreon for just 3 USD a month.

www.patreon.com/mycotheca
Mycotheca — Documenting and preserving Chilean funga
Get more from Mycotheca on Patreon. Documenting and preserving Chilean funga. Support Mycotheca and get exclusive access to their work.
www.patreon.com
June 28, 2026 at 11:51 PM
Check out some of the specimens deposited at #Mycotheca (MYCL) in this @inaturalist.bsky.social traditional project.

www.inaturalist.org/projects/myc...
Mycotheca
Mycotheca (MYCL) is an independent fungarium created to provide fungal specimens and open data to the scientific community. It emerged from the need to document and preserve Chilean funga but also to ...
www.inaturalist.org
June 25, 2026 at 4:04 PM
Reposted by Cristian Riquelme
🥁 Introducing.... the new and improved GBIF.org! 😍

Our refreshed website brings a series of enhancements to both the technical capabilities and user experience of GBIF infrastructure.

Explore the new features on GBIF.org:🐅 🔗 gbif.link/new-gbif.org
June 18, 2026 at 12:37 PM
Reposted by Cristian Riquelme
~1 billion times the distance from Earth to the Sun.

That is approx the total length of arbuscular mycorrhizal fungal hyphae in topsoils. These microscopic fungal networks form one of Earth’s circulatory systems moving carbon and nutrients.

Out now in @science.org : lnkd.in/eKAsVN_Z
June 12, 2026 at 10:40 AM
Reposted by Cristian Riquelme
Global topsoil contains ~110 quadrillion km of fungal threads, roughly one billion times the distance from the Earth to the Sun.

A new study in @science.org maps this hidden arbuscular mycorrhizal infrastructure for the first time.

Explore the Mycorrhizal Infrastructure Map: buff.ly/PISOj8k
A hidden infrastructure
Mapping Earth’s underground mycorrhizal fungal networks — the hidden infrastructure beneath our feet.
a-hidden-infrastructure.spun.earth
June 11, 2026 at 6:06 PM
Anthracaurisin A, isolated from Anthracophyllum discolor, exhibited potent cytotoxic activity.

doi.org/10.1021/acs....
Anthracaurisin A─Discovery of a Cytotoxic Nor-Sesquiterpene Dimer from Patagonian Anthracophyllum discolor
Fungal natural products, also called secondary metabolites (SMs), continue to inspire chemists and drug development. Around 30,000 fungal SMs are known, mainly from filamentous fungi of the phylum Ascomycota. Only 5% of all fungal species are described today, and even fewer have been cultured or chemically screened, which makes fungi an untapped reservoir for chemical discovery. The phylum Basidiomycota harbors chemically talented fungi such as the psilocybin producer Psilocybe cubensis (Agaricales, Hymenogastraceae), but other members like the genus Anthracophyllum (Agaricales, Omphalotaceae) remain largely genetically and chemically underexplored although new species are being discovered frequently. Here, we present the chemical and bioactivity exploration of a Chilean Anthracophyllum discolor fungus. We discovered anthracaurisin A, the first fungal nor-sesquiterpene homodimer with potent cytotoxic activity in vitro and in vivo, isolated one new and several known illudins, and established their absolute configurations.
doi.org
June 11, 2026 at 1:10 PM
Reposted by Cristian Riquelme
Our paper "Gene ancestries reveal diverse microbial associations during eukaryogenesis.” is finally out in Nature.

Eukaryogenesis was likely a gradual process shaped by multiple microbial partners and virus-mediated gene transfer, rather than a single binary symbiosis.

doi.org/10.1038/s415...
June 10, 2026 at 3:00 PM
Reposted by Cristian Riquelme
Why do you care? Why not just block them?

Because these people are ruining one of the greatest things about the internet: the hobbyist communities and the wonderful niche knowledge they shared and made available to the world.

They're all getting drowned out by AI bullshit to make a quick buck.
June 11, 2026 at 12:11 AM
Reposted by Cristian Riquelme
11. Addendum: here are the words characteristic of LLMs.

Notice anything? It reads like an email from our upper administration.
June 3, 2026 at 11:32 PM
Reposted by Cristian Riquelme
Presenting Leotia chiricana to the world! This new blue Leotia is from tropical ectomycorrhizal forest of Panama and Colombia. It is named after the Chiriqui province of Panama where it was first found. You can read the full publication here link.springer.com/article/10.1... Enjoy! 🤩
May 24, 2026 at 9:28 PM