Xin Sun
@xinsun-putiger.bsky.social
Microbial Ecology & Biogeochemistry. Asst Prof at Penn. https://www.bio.upenn.edu/people/xin-sun
Reposted by Xin Sun
⚒️ Article: Nitrite-oxidizing bacteria contribute to the accumulation of nitrite in marine oxygen minimum zones through interactions with other microbes
@xinsun-putiger.bsky.social @upenn.edu @carnegiescience.bsky.social
www.nature.com/articles/s41...
@xinsun-putiger.bsky.social @upenn.edu @carnegiescience.bsky.social
www.nature.com/articles/s41...
Nitrite accumulation in marine oxygen minimum zones induced by microbial nitrite consumers - Nature Geoscience
Despite being consumers, nitrite-oxidizing bacteria contribute to the accumulation of nitrite in marine oxygen minimum zones through interactions with other microbes, in particular denitrifiers, accor...
www.nature.com
November 13, 2025 at 4:00 PM
⚒️ Article: Nitrite-oxidizing bacteria contribute to the accumulation of nitrite in marine oxygen minimum zones through interactions with other microbes
@xinsun-putiger.bsky.social @upenn.edu @carnegiescience.bsky.social
www.nature.com/articles/s41...
@xinsun-putiger.bsky.social @upenn.edu @carnegiescience.bsky.social
www.nature.com/articles/s41...
Our paper "Nitrite accumulation in marine oxygen minimum zones induced by microbial nitrite consumers" is online @natgeosci.nature.com! We found that microbial nitrite consumers counterintuitively lead to nitrite accumulation in marine oxygen minimum zones! 🦠 🌊 www.nature.com/articles/s41...
Nitrite accumulation in marine oxygen minimum zones induced by microbial nitrite consumers - Nature Geoscience
Despite being consumers, nitrite-oxidizing bacteria contribute to the accumulation of nitrite in marine oxygen minimum zones through interactions with other microbes, in particular denitrifiers, accor...
www.nature.com
November 13, 2025 at 2:17 PM
Our paper "Nitrite accumulation in marine oxygen minimum zones induced by microbial nitrite consumers" is online @natgeosci.nature.com! We found that microbial nitrite consumers counterintuitively lead to nitrite accumulation in marine oxygen minimum zones! 🦠 🌊 www.nature.com/articles/s41...
Reposted by Xin Sun
New research from Prof. Xin Sun of Biology offers an improved understanding of microbial ecology and geochemistry—key to forecasting global emissions in response to natural and man-made climate change. @upenn.edu @xinsun-putiger.bsky.social
Can tiny ocean organisms offer the key to better climate modeling? | Penn Today
In the shadowy layers of the Pacific, microbes decide how much nitrous oxide—a potent greenhouse gas—rises skyward. New research from Penn’s Xin Sun offers an improved understanding of microbial ecolo...
bit.ly
October 22, 2025 at 4:04 PM
New research from Prof. Xin Sun of Biology offers an improved understanding of microbial ecology and geochemistry—key to forecasting global emissions in response to natural and man-made climate change. @upenn.edu @xinsun-putiger.bsky.social
In honor of the bagels Claudia and I ate during the cruise, I used a bagel analogy to talk about our key findings 🥯: penntoday.upenn.edu/news/penn-sa...
Can tiny ocean organisms offer the key to better climate modeling? | Penn Today
In the shadowy layers of the Pacific, microbes decide how much nitrous oxide—a potent greenhouse gas—rises skyward. New research from Penn’s Xin Sun offers an improved understanding of microbial ecolo...
penntoday.upenn.edu
October 22, 2025 at 3:20 PM
In honor of the bagels Claudia and I ate during the cruise, I used a bagel analogy to talk about our key findings 🥯: penntoday.upenn.edu/news/penn-sa...
Microbial ecology provides critical insights for biogeochemistry: we unravel mechanisms and controls of the primary N2O production pathway in marine oxygen minimum zones using both experiments and theoretical modeling. Great collaborators, amazing experience! www.nature.com/articles/s41...
Mechanistic understanding of nitrate reduction as the dominant production pathway of nitrous oxide in marine oxygen minimum zones - Nature Communications
Experiments and modelling unravel mechanisms of nitrous oxide production from nitrate, the primary nitrous oxide production pathway in oxygen minimum zones. Results highlight the critical role of microbial interactions in regulating this pathway.
www.nature.com
October 7, 2025 at 2:47 PM
Microbial ecology provides critical insights for biogeochemistry: we unravel mechanisms and controls of the primary N2O production pathway in marine oxygen minimum zones using both experiments and theoretical modeling. Great collaborators, amazing experience! www.nature.com/articles/s41...
Reposted by Xin Sun
This week, we lost one of the world’s greatest advocates for people and nature. Even in her final days, Dr. Jane Goodall was urging us not to give up, and now her legacy lives on through the countless voices she inspired.
Read on Mailchimp: shorturl.at/lDxXk
Read on LinkedIn: shorturl.at/VOiPa
Read on Mailchimp: shorturl.at/lDxXk
Read on LinkedIn: shorturl.at/VOiPa
Jane Goodall's final lesson
Honoring Jane Goodall's life, Pope Leo's first climate address, and finding hope in action
www.talkingclimate.ca
October 6, 2025 at 11:10 PM
This week, we lost one of the world’s greatest advocates for people and nature. Even in her final days, Dr. Jane Goodall was urging us not to give up, and now her legacy lives on through the countless voices she inspired.
Read on Mailchimp: shorturl.at/lDxXk
Read on LinkedIn: shorturl.at/VOiPa
Read on Mailchimp: shorturl.at/lDxXk
Read on LinkedIn: shorturl.at/VOiPa
Reposted by Xin Sun
It was one of the most interactive departmental seminar I've given. Thank you @xinsun-putiger.bsky.social for hosting this seminar in the beautiful campus of Penn, Department of Biology! Astounded by a full room of people studying soil, marine ecology, plant biology, and earth/environmental science.
August 30, 2025 at 5:18 AM
It was one of the most interactive departmental seminar I've given. Thank you @xinsun-putiger.bsky.social for hosting this seminar in the beautiful campus of Penn, Department of Biology! Astounded by a full room of people studying soil, marine ecology, plant biology, and earth/environmental science.
Assistant Professor position in Forest Ecosystem Sustainability at Cornell. urldefense.com/v3/__https:/...
Cornell University, Department of Natural Resources and the Environment
Job #AJO30209, WDR-00054090 Assistant Professor Forest Ecosystem Sustainability, Department of Natural Resources and the Environment, Cornell University, Ithaca, New York, US
urldefense.com
August 19, 2025 at 1:44 PM
Assistant Professor position in Forest Ecosystem Sustainability at Cornell. urldefense.com/v3/__https:/...
Reposted by Xin Sun
New paper in @nature.com! With @kiseokmicro.bsky.social , Siqi Liu, Kyle Crocker, Jojo Wang, Mikhail Tikhonov & Madhav Mani — a massive dataset and simple model reveal a few conserved regimes that capture how soil microbiome metabolism responds to perturbations. www.nature.com/articles/s41...
July 17, 2025 at 6:36 AM
New paper in @nature.com! With @kiseokmicro.bsky.social , Siqi Liu, Kyle Crocker, Jojo Wang, Mikhail Tikhonov & Madhav Mani — a massive dataset and simple model reveal a few conserved regimes that capture how soil microbiome metabolism responds to perturbations. www.nature.com/articles/s41...
Another position from the same lab: again, amazing team, awesome advisor!
🚨4yr Technical Assistant Position on #Microbial Activities in #Marine #N-Cycling🦠🧪👩🎓🔬
Join me @univie.ac.at @dome-vienna.bsky.social
Part of our ERC Synergy #RECLESS looking at microbes in marine oxygen minimum zones
Apply by Oct 15, start March 2026!
-> ucloud.univie.ac.at/index.php/s/...
Join me @univie.ac.at @dome-vienna.bsky.social
Part of our ERC Synergy #RECLESS looking at microbes in marine oxygen minimum zones
Apply by Oct 15, start March 2026!
-> ucloud.univie.ac.at/index.php/s/...
RECLESS_TA_molecular_UniVie.pdf
u:cloud - Ihre Daten, auf Wolken gebettet.
ucloud.univie.ac.at
August 4, 2025 at 2:55 PM
Another position from the same lab: again, amazing team, awesome advisor!
Amazing team, awesome advisor! Don’t miss this excellent opportunity!
🚨3-yr Postdoc Position on #SingleCell Activities in #Marine #N-Cycling🦠🧪👩🎓🔬
Join me @univie.ac.at @dome-vienna.bsky.social
Part of our ERC Synergy #RECLESS looking at microbes in marine oxygen minimum zones
Apply by Oct 15, start March 2026!
-> ucloud.univie.ac.at/index.php/s/...
Join me @univie.ac.at @dome-vienna.bsky.social
Part of our ERC Synergy #RECLESS looking at microbes in marine oxygen minimum zones
Apply by Oct 15, start March 2026!
-> ucloud.univie.ac.at/index.php/s/...
RECLESS_Postdoc_single_cell_UniVie.pdf
u:cloud - Ihre Daten, auf Wolken gebettet.
ucloud.univie.ac.at
August 4, 2025 at 2:54 PM
Amazing team, awesome advisor! Don’t miss this excellent opportunity!
Calling all marine microbe enthusiasts! Please check out our session and we look forward to seeing your abstracts!!
Abstract submissions are open for the Ocean Sciences Meeting 2026!
Join our session “Quantifying & Linking Omics, Physiology & Models in Marine Microbiology” in beautiful Glasgow, Scotland
Submission Deadline: Aug 20, 2025
agu.confex.com/agu/osm26/pr...
Join our session “Quantifying & Linking Omics, Physiology & Models in Marine Microbiology” in beautiful Glasgow, Scotland
Submission Deadline: Aug 20, 2025
agu.confex.com/agu/osm26/pr...
Quantifying and Linking Omics, Physiology & Models in Marine Microbiology
Microbial communities govern ocean ecology and biogeochemistry, yet a major gap persists between knowing who is present and understanding how fast they transform energy and matter. This session seeks ...
agu.confex.com
August 1, 2025 at 6:24 PM
Calling all marine microbe enthusiasts! Please check out our session and we look forward to seeing your abstracts!!
We are organizing a session on the aquatic nitrogen cycle at AGU this year! The abstract deadline is the end of this month (July 30), and a link to our session is attached below. Look forward to your contribution!
agu.confex.com/agu/agu25/pr...
agu.confex.com/agu/agu25/pr...
From Molecules to Food Webs: Nitrogen Cycling Processes in Aquatic Environments
Nitrogen (N) cycling in aquatic ecosystems—both marine and freshwater—is fundamental to ecosystem productivity, biogeochemical fluxes, and food web structure. At the base of these systems, primary pro...
agu.confex.com
July 15, 2025 at 3:31 PM
We are organizing a session on the aquatic nitrogen cycle at AGU this year! The abstract deadline is the end of this month (July 30), and a link to our session is attached below. Look forward to your contribution!
agu.confex.com/agu/agu25/pr...
agu.confex.com/agu/agu25/pr...
First two weeks as an assistant professor: loving my colleagues, grateful for all the help from our staff, impressed by science happening in the department, and shocked by how quickly I lost heat tolerance after only three years in California 🤣
July 14, 2025 at 1:41 PM
First two weeks as an assistant professor: loving my colleagues, grateful for all the help from our staff, impressed by science happening in the department, and shocked by how quickly I lost heat tolerance after only three years in California 🤣
Reposted by Xin Sun
@xinsun-putiger.bsky.social kicks off the ocean session #ICoN9 with a fantastic talk explaining why nitrite accumulates in ocean oxygen minimum zones.
The work is still in review but builds on her recent work on modeling ocean denitrification:
www.pnas.org/doi/10.1073/...
The work is still in review but builds on her recent work on modeling ocean denitrification:
www.pnas.org/doi/10.1073/...
Ecological dynamics explain modular denitrification in the ocean | PNAS
Microorganisms in marine oxygen minimum zones (OMZs) drive globally impactful biogeochemical
processes. One such process is multistep denitrificati...
www.pnas.org
June 23, 2025 at 7:44 AM
@xinsun-putiger.bsky.social kicks off the ocean session #ICoN9 with a fantastic talk explaining why nitrite accumulates in ocean oxygen minimum zones.
The work is still in review but builds on her recent work on modeling ocean denitrification:
www.pnas.org/doi/10.1073/...
The work is still in review but builds on her recent work on modeling ocean denitrification:
www.pnas.org/doi/10.1073/...
Excited to share our new paper on how aerobic nitrite-oxidizing bacteria persist in anoxic seawater: www.science.org/doi/10.1126/...
Oxygen intrusions sustain aerobic nitrite-oxidizing bacteria in anoxic marine zones
Anaerobic metabolisms are thought to dominate nitrogen cycling in anoxic marine zones (AMZs). However, thriving populations of aerobic nitrite-oxidizing bacteria (NOB) in AMZs challenge this assumptio...
www.science.org
June 6, 2025 at 11:08 PM
Excited to share our new paper on how aerobic nitrite-oxidizing bacteria persist in anoxic seawater: www.science.org/doi/10.1126/...
Today at the Stanford Bug Club (Advanced Seminars in Microbiology), thanks to my amazing team members, we won the microbiology-themed charades, and I got an E. coli!
April 14, 2025 at 8:58 PM
Today at the Stanford Bug Club (Advanced Seminars in Microbiology), thanks to my amazing team members, we won the microbiology-themed charades, and I got an E. coli!
Thank you, @usocb.bsky.social, for sharing our recent work: www.us-ocb.org/how-do-ocean...
How do ocean microbes share the job of denitrification? :: Ocean Carbon & Biogeochemistry
Denitrification is a crucial multi-step process for ecosystem productivity and sustainability because some of its steps can result in the loss of the
www.us-ocb.org
April 7, 2025 at 4:10 PM
Thank you, @usocb.bsky.social, for sharing our recent work: www.us-ocb.org/how-do-ocean...
First post: 🦠🌊Denitrification is the main nitrogen loss process, but how do microbes performing different steps coexist? We outline the rules governing this coexistence and explain why some denitrifiers are more abundant than others in the ocean. Check it out here: 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
March 7, 2025 at 5:58 PM
First post: 🦠🌊Denitrification is the main nitrogen loss process, but how do microbes performing different steps coexist? We outline the rules governing this coexistence and explain why some denitrifiers are more abundant than others in the ocean. Check it out here: www.pnas.org/doi/10.1073/...