Shumpei Maruyama
@shumpeim.bsky.social
Postdoc with Cleves Lab at UC Berkeley | NSF PRFB Fellow | trained by the Weis Lab | Studying cnidarian-algal symbiosis, especially interested in the symbiosome |
www.shumpei.me
www.shumpei.me
Pinned
Shumpei Maruyama
@shumpeim.bsky.social
· Oct 13
We're excited to share with everyone a preprint of our manuscript that resolves the cellular origins of the symbiosome in cnidarian-algal symbiosis through proteomics of the symbiosome, RNAi, and CRISPR/Cas9 experiments. ⬇️
www.biorxiv.org/content/10.1...
Read on below!
1/12 🧵
www.biorxiv.org/content/10.1...
Read on below!
1/12 🧵
Reposted by Shumpei Maruyama
Alright bsky science + art community, I need your help.
I was p confident we could get a grant to fund our upcoming biodiversity mural in Kensington. Last night, they called to say our partner school is 2 blocks outside of their service area.
But ya know what? We're gonna do it anyway.
I was p confident we could get a grant to fund our upcoming biodiversity mural in Kensington. Last night, they called to say our partner school is 2 blocks outside of their service area.
But ya know what? We're gonna do it anyway.
February 16, 2026 at 3:13 PM
Alright bsky science + art community, I need your help.
I was p confident we could get a grant to fund our upcoming biodiversity mural in Kensington. Last night, they called to say our partner school is 2 blocks outside of their service area.
But ya know what? We're gonna do it anyway.
I was p confident we could get a grant to fund our upcoming biodiversity mural in Kensington. Last night, they called to say our partner school is 2 blocks outside of their service area.
But ya know what? We're gonna do it anyway.
Reposted by Shumpei Maruyama
We are proud to unveil the world’s longest underwater timelapse, starting May 1st 2023 and running 1,000 days through January 28, 2026. This 10fps period covers summer 2023’s coral bleaching mortality event, but then recovering and growing through ‘24 & ‘25 into ‘26 #coralcitycamera
February 9, 2026 at 7:17 PM
We are proud to unveil the world’s longest underwater timelapse, starting May 1st 2023 and running 1,000 days through January 28, 2026. This 10fps period covers summer 2023’s coral bleaching mortality event, but then recovering and growing through ‘24 & ‘25 into ‘26 #coralcitycamera
Reposted by Shumpei Maruyama
Saw this blog post on friendship & academia circulating Bsky last week & it really resonated. Gratitude for my (science) support system defs keeps me going.
Today is a new day. Baby steps. #newPI #AcademicSky
matthiasrillig.substack.com/p/friendship...
Today is a new day. Baby steps. #newPI #AcademicSky
matthiasrillig.substack.com/p/friendship...
Friendship in academia
Not often talked about, but maybe one of the best things of life in academia?
matthiasrillig.substack.com
February 5, 2026 at 1:26 PM
Saw this blog post on friendship & academia circulating Bsky last week & it really resonated. Gratitude for my (science) support system defs keeps me going.
Today is a new day. Baby steps. #newPI #AcademicSky
matthiasrillig.substack.com/p/friendship...
Today is a new day. Baby steps. #newPI #AcademicSky
matthiasrillig.substack.com/p/friendship...
Reposted by Shumpei Maruyama
Thanks to all authors for their efforts in getting this paper out there! We found integrins facilitated the specific uptake of symbionts in coral and Aiptasia larvae, shedding new light on the mechanisms of symbiosis establishment in cnidarians.
See the second January issue:
link.springer.com/journal/4431...
The cover shows work by Meghan Ferguson @micro-megs.bsky.social and Annika Guse @annikaguse.bsky.social
@lmumuenchen.bsky.social showing symbiont-specific uptake in cnidarian larvae via integrins.
link.springer.com/article/10.1...
link.springer.com/journal/4431...
The cover shows work by Meghan Ferguson @micro-megs.bsky.social and Annika Guse @annikaguse.bsky.social
@lmumuenchen.bsky.social showing symbiont-specific uptake in cnidarian larvae via integrins.
link.springer.com/article/10.1...
January 30, 2026 at 4:29 PM
Thanks to all authors for their efforts in getting this paper out there! We found integrins facilitated the specific uptake of symbionts in coral and Aiptasia larvae, shedding new light on the mechanisms of symbiosis establishment in cnidarians.
Reposted by Shumpei Maruyama
New paper out in @bmc.springernature.com 🤩👏 A routine 5-ethynyl uridine (EU) RNA labeling experiment in a sea anemone turned into detective work for @malinkjosavik.bsky.social, @ktgarschall.bsky.social & @prhsteinmetz.bsky.social 🕵️♀️
A widely used RNA assay labels the wrong molecules in several model organisms
After a routine experiment raised suspicions, Steinmetz group researchers joined forces with collaborators to highlight the limitations of a commonly used RNA labeling product.
www.uib.no
January 29, 2026 at 3:33 PM
New paper out in @bmc.springernature.com 🤩👏 A routine 5-ethynyl uridine (EU) RNA labeling experiment in a sea anemone turned into detective work for @malinkjosavik.bsky.social, @ktgarschall.bsky.social & @prhsteinmetz.bsky.social 🕵️♀️
Reposted by Shumpei Maruyama
Big exciting news! The next Cnidarian Model Systems Meeting, better known as Cnidofest, will be held at the Marine Biological Laboratory from September 23-27, 2026. Mark your calendars!!! After two land-locked meetings, we are returning to an ocean view!!! 🌊🪸 @mblscience.bsky.social
January 7, 2025 at 10:29 PM
Big exciting news! The next Cnidarian Model Systems Meeting, better known as Cnidofest, will be held at the Marine Biological Laboratory from September 23-27, 2026. Mark your calendars!!! After two land-locked meetings, we are returning to an ocean view!!! 🌊🪸 @mblscience.bsky.social
Reposted by Shumpei Maruyama
Looking for sources for a @nature.com story about how researchers are coping in the midst of current events: If you're a PhD or other academic who's struggling to focus with everything that's happening in the world and would like to be interviewed for this story, please get in touch ASAP!
January 26, 2026 at 4:25 PM
Looking for sources for a @nature.com story about how researchers are coping in the midst of current events: If you're a PhD or other academic who's struggling to focus with everything that's happening in the world and would like to be interviewed for this story, please get in touch ASAP!
Reposted by Shumpei Maruyama
The HIFMB seeks a postdoc for coral population genomics and conservation genetics. Candidates with a PhD in related fields and skills in programming are encouraged to apply. More info: https://hifmb.de/ #postdoc
A bigger picture | HIFMB Oldenburg
We research the sea and its function for humans and the environment.
hifmb.de
January 25, 2026 at 8:26 AM
The HIFMB seeks a postdoc for coral population genomics and conservation genetics. Candidates with a PhD in related fields and skills in programming are encouraged to apply. More info: https://hifmb.de/ #postdoc
Reposted by Shumpei Maruyama
🧪🌏 Opinion: Coral species from another ocean may be the only way to save Caribbean reefs.
#coralER @pnas.org @texas-ib.bsky.social @texasscience.bsky.social www.pnas.org/doi/10.1073/...
#coralER @pnas.org @texas-ib.bsky.social @texasscience.bsky.social 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
January 22, 2026 at 8:24 PM
🧪🌏 Opinion: Coral species from another ocean may be the only way to save Caribbean reefs.
#coralER @pnas.org @texas-ib.bsky.social @texasscience.bsky.social www.pnas.org/doi/10.1073/...
#coralER @pnas.org @texas-ib.bsky.social @texasscience.bsky.social www.pnas.org/doi/10.1073/...
Reposted by Shumpei Maruyama
Getting asked about how academics can continue to do science & inspire trainees even in the midst of a continued (escalated) assault on science, reason, truth, & human rights. I don’t have great answers.
I would love to hear from mentors about advice they’re giving to trainees/ colleagues.
I would love to hear from mentors about advice they’re giving to trainees/ colleagues.
January 17, 2026 at 6:47 PM
Getting asked about how academics can continue to do science & inspire trainees even in the midst of a continued (escalated) assault on science, reason, truth, & human rights. I don’t have great answers.
I would love to hear from mentors about advice they’re giving to trainees/ colleagues.
I would love to hear from mentors about advice they’re giving to trainees/ colleagues.
Reposted by Shumpei Maruyama
New #GENETICS report from @pcleves.bsky.social et al. shows the use of a simple electroporation protocol to introduce various genetic constructs into Aiptasia zygotes, a small sea anemone and an emerging model to study coral biology. buff.ly/5aQpQ1S
December 29, 2025 at 2:02 PM
New #GENETICS report from @pcleves.bsky.social et al. shows the use of a simple electroporation protocol to introduce various genetic constructs into Aiptasia zygotes, a small sea anemone and an emerging model to study coral biology. buff.ly/5aQpQ1S
Reposted by Shumpei Maruyama
End-of-year preprint dump! A collaboration with @messorensen.bsky.social and German and Korean colleagues: "The phylogenetic context for the origin of a unique purple-green photosymbiosis "
doi.org/10.64898/202...
doi.org/10.64898/202...
December 23, 2025 at 2:51 PM
End-of-year preprint dump! A collaboration with @messorensen.bsky.social and German and Korean colleagues: "The phylogenetic context for the origin of a unique purple-green photosymbiosis "
doi.org/10.64898/202...
doi.org/10.64898/202...
Reposted by Shumpei Maruyama
🚨 POSTDOC OPENING 🚨
NIH-funded Bio-Fluid Mechanics Postdoc in my lab @univmiami.bsky.social
Hofstenia miamia | cilia-driven flows | behavior & neuroscience
Collab w/ Mansi Srivastava @harvard.edu
🕒 Start: Jan–Feb 2026
⏳ 1 yr, renewable | Email me ASAP!
#Postdoc #Biophysics #FluidDynamics
NIH-funded Bio-Fluid Mechanics Postdoc in my lab @univmiami.bsky.social
Hofstenia miamia | cilia-driven flows | behavior & neuroscience
Collab w/ Mansi Srivastava @harvard.edu
🕒 Start: Jan–Feb 2026
⏳ 1 yr, renewable | Email me ASAP!
#Postdoc #Biophysics #FluidDynamics
December 23, 2025 at 6:31 PM
🚨 POSTDOC OPENING 🚨
NIH-funded Bio-Fluid Mechanics Postdoc in my lab @univmiami.bsky.social
Hofstenia miamia | cilia-driven flows | behavior & neuroscience
Collab w/ Mansi Srivastava @harvard.edu
🕒 Start: Jan–Feb 2026
⏳ 1 yr, renewable | Email me ASAP!
#Postdoc #Biophysics #FluidDynamics
NIH-funded Bio-Fluid Mechanics Postdoc in my lab @univmiami.bsky.social
Hofstenia miamia | cilia-driven flows | behavior & neuroscience
Collab w/ Mansi Srivastava @harvard.edu
🕒 Start: Jan–Feb 2026
⏳ 1 yr, renewable | Email me ASAP!
#Postdoc #Biophysics #FluidDynamics
Reposted by Shumpei Maruyama
New paper on using #coral nurseries as experimental units for studying host x symbiont genotype interactions. Congrats to recent PhD student (now Dr.) Matt Gamache! @cmarinescience.bsky.social
rdcu.be/eVA2C
rdcu.be/eVA2C
December 22, 2025 at 4:41 PM
New paper on using #coral nurseries as experimental units for studying host x symbiont genotype interactions. Congrats to recent PhD student (now Dr.) Matt Gamache! @cmarinescience.bsky.social
rdcu.be/eVA2C
rdcu.be/eVA2C
Reposted by Shumpei Maruyama
🧪 Dr. Emily Aguirre's final dissertation chapter is published! She isolated a putative bacterial symbiont then cocultured it with axenic algal symbionts to ask how it impacted growth and gene expression - results were unexpected but do support a beneficial relationship - read more here rdcu.be/eUKQz
December 16, 2025 at 8:06 PM
🧪 Dr. Emily Aguirre's final dissertation chapter is published! She isolated a putative bacterial symbiont then cocultured it with axenic algal symbionts to ask how it impacted growth and gene expression - results were unexpected but do support a beneficial relationship - read more here rdcu.be/eUKQz
Reposted by Shumpei Maruyama
Thrilled to share the preprint from my PhD! 🥳 Where I characterised epithelial cell extrusion in a sea anemone
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
December 16, 2025 at 12:33 PM
Thrilled to share the preprint from my PhD! 🥳 Where I characterised epithelial cell extrusion in a sea anemone
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
Reposted by Shumpei Maruyama
Proud to see the PhD work of @inesfournon.bsky.social out as preprint!
🌸 Cell extrusion DOES exist outside of bilaterians AND is sensitive to feeding status in sea anemones.
🌸 Cell extrusion DOES exist outside of bilaterians AND is sensitive to feeding status in sea anemones.
Thrilled to share the preprint from my PhD! 🥳 Where I characterised epithelial cell extrusion in a sea anemone
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
🔗 www.biorxiv.org/content/10.6...
Big thanks to my supervisor @prhsteinmetz.bsky.social and coauthors @noahbruderer.bsky.social @lionlchristiaen.bsky.social at🇳🇴 @msarscentre.bsky.social ⬇️🧵
December 16, 2025 at 3:43 PM
Proud to see the PhD work of @inesfournon.bsky.social out as preprint!
🌸 Cell extrusion DOES exist outside of bilaterians AND is sensitive to feeding status in sea anemones.
🌸 Cell extrusion DOES exist outside of bilaterians AND is sensitive to feeding status in sea anemones.
Reposted by Shumpei Maruyama
New preprint characterizing a protein likely required for vertical transmission. Some really stellar undergrads contributing to this work too!
A secreted endosymbiont protein essential for colonizing host cells
A secreted endosymbiont protein essential for colonizing host cells
A secreted endosymbiont protein essential for colonizing host cells
Intracellular bacterial symbioses have arisen myriad times in eukaryotes, with dozens known from insects alone[1][1],[2][2]. Beginning with Buchnera , the obligate endosymbiont of aphids, genomes of e...
www.biorxiv.org
December 8, 2025 at 4:57 PM
New preprint characterizing a protein likely required for vertical transmission. Some really stellar undergrads contributing to this work too!
A secreted endosymbiont protein essential for colonizing host cells
A secreted endosymbiont protein essential for colonizing host cells
Reposted by Shumpei Maruyama
Are you coming to SICB Portland?
sicb.org/events/upcom...
if so, don't miss S01: Host- #microbial interactions across #biological scales in a changing world
Organized by:
@ryanehulett.bsky.social , Carnegie Institution for #Science
Shalye Matsuda, Shedd #Aquarium
(see image description)
sicb.org/events/upcom...
if so, don't miss S01: Host- #microbial interactions across #biological scales in a changing world
Organized by:
@ryanehulett.bsky.social , Carnegie Institution for #Science
Shalye Matsuda, Shedd #Aquarium
(see image description)
December 2, 2025 at 12:18 PM
Are you coming to SICB Portland?
sicb.org/events/upcom...
if so, don't miss S01: Host- #microbial interactions across #biological scales in a changing world
Organized by:
@ryanehulett.bsky.social , Carnegie Institution for #Science
Shalye Matsuda, Shedd #Aquarium
(see image description)
sicb.org/events/upcom...
if so, don't miss S01: Host- #microbial interactions across #biological scales in a changing world
Organized by:
@ryanehulett.bsky.social , Carnegie Institution for #Science
Shalye Matsuda, Shedd #Aquarium
(see image description)
Reposted by Shumpei Maruyama
Our study, just published in #ScienceAdvances and funded by @hfspo.bsky.social, explores the post metamorphic cell composition of the sea urchin juvenile, revealing that its body is head-like. Long considered brainless creatures, they’re all brain instead!
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Single-nucleus profiling highlights the all-brain echinoderm nervous system
A sea urchin is a head with a brain-like organization and a vertebrate-type retinal signature.
www.science.org
November 5, 2025 at 7:03 PM
Our study, just published in #ScienceAdvances and funded by @hfspo.bsky.social, explores the post metamorphic cell composition of the sea urchin juvenile, revealing that its body is head-like. Long considered brainless creatures, they’re all brain instead!
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Shumpei Maruyama
We’re back with the next DinoSphere Online Seminar!
Join us on Nov 4th, we're hosting:
Edmée Royen (ULiège) - Symbiodinium
Nicolas dos Santos Pacheco (Cambridge) - Perkinsids
📅 Tue, Nov 4 - 4 PM CET/3 PM GMT
💻 Zoom link: sites.google.com/view/dinosphere
Please spread the word!
#protistonsky
Join us on Nov 4th, we're hosting:
Edmée Royen (ULiège) - Symbiodinium
Nicolas dos Santos Pacheco (Cambridge) - Perkinsids
📅 Tue, Nov 4 - 4 PM CET/3 PM GMT
💻 Zoom link: sites.google.com/view/dinosphere
Please spread the word!
#protistonsky
October 28, 2025 at 3:29 PM
We’re back with the next DinoSphere Online Seminar!
Join us on Nov 4th, we're hosting:
Edmée Royen (ULiège) - Symbiodinium
Nicolas dos Santos Pacheco (Cambridge) - Perkinsids
📅 Tue, Nov 4 - 4 PM CET/3 PM GMT
💻 Zoom link: sites.google.com/view/dinosphere
Please spread the word!
#protistonsky
Join us on Nov 4th, we're hosting:
Edmée Royen (ULiège) - Symbiodinium
Nicolas dos Santos Pacheco (Cambridge) - Perkinsids
📅 Tue, Nov 4 - 4 PM CET/3 PM GMT
💻 Zoom link: sites.google.com/view/dinosphere
Please spread the word!
#protistonsky
Reposted by Shumpei Maruyama
🪸 🪸 🪸 Postdoc position in my group at Bristol to study the role of venom in surviving environmental stress in corals! 🪸 Interested in venom biochemistry and coral ecology?Please apply by November 24!
@bristolbiosci.bsky.social
www.bristol.ac.uk/jobs/find/de...
@bristolbiosci.bsky.social
www.bristol.ac.uk/jobs/find/de...
October 27, 2025 at 12:43 PM
🪸 🪸 🪸 Postdoc position in my group at Bristol to study the role of venom in surviving environmental stress in corals! 🪸 Interested in venom biochemistry and coral ecology?Please apply by November 24!
@bristolbiosci.bsky.social
www.bristol.ac.uk/jobs/find/de...
@bristolbiosci.bsky.social
www.bristol.ac.uk/jobs/find/de...
Reposted by Shumpei Maruyama
Looking to learn about career paths in microbiome research?
Come join a panel discussion hosted by the Microbiome Centers Consortium. We're talking to some great folks in diverse positions about how they explored their proffesional paths.
lnkd.in/e6WVziXY
Come join a panel discussion hosted by the Microbiome Centers Consortium. We're talking to some great folks in diverse positions about how they explored their proffesional paths.
lnkd.in/e6WVziXY
October 27, 2025 at 2:35 PM
Looking to learn about career paths in microbiome research?
Come join a panel discussion hosted by the Microbiome Centers Consortium. We're talking to some great folks in diverse positions about how they explored their proffesional paths.
lnkd.in/e6WVziXY
Come join a panel discussion hosted by the Microbiome Centers Consortium. We're talking to some great folks in diverse positions about how they explored their proffesional paths.
lnkd.in/e6WVziXY
Reposted by Shumpei Maruyama
Reposted by Shumpei Maruyama
Results I'm sad to share but must be told - branching coral are now functionally extinct in Florida - to learn more check out the full study www.science.org/doi/10.1126/... and our personal summary theconversation.com/2-iconic-cor...
Heat-driven functional extinction of Caribbean Acropora corals from Florida’s Coral Reef
In 2023, a record-setting marine heat wave triggered the ninth mass coral bleaching event on Florida’s Coral Reef (FCR). We examined spatial patterns of heat exposure along the ~560-kilometer length o...
www.science.org
October 23, 2025 at 6:26 PM
Results I'm sad to share but must be told - branching coral are now functionally extinct in Florida - to learn more check out the full study www.science.org/doi/10.1126/... and our personal summary theconversation.com/2-iconic-cor...