Ioanna Chatzigiannidou
@ioannachatzig.bsky.social
Microbial ecology 🦠 | Microbiome 👤 👶 🧬 | Postdoc @ DTU
Pinned
Temporal dynamics and microbial interactions shaping the gut resistome in early infancy - Nature Communications
Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively inhibit antimicrobial resi...
www.nature.com
👶 Curious about infant gut microbiota and 🧬 antimicrobial resistance? Have a look at our recent publication @natcomms.nature.com
#microbiome #infantgut #AMR
www.nature.com/articles/s41...
#microbiome #infantgut #AMR
www.nature.com/articles/s41...
We’re excited to announce the launch of our brand new Bluesky page, AMI Journals! Follow for the latest news and updates from our journals – Journal of Applied Microbiology, Letters in Applied Microbiology and Sustainable Microbiology. 📚
https://bsky.app/profile/ami-journals.bsky.social
https://bsky.app/profile/ami-journals.bsky.social
AMI Journals (@ami-journals.bsky.social)
Advancing the global impact of applied microbiology
bsky.app
February 19, 2026 at 12:03 PM
Reposted by Ioanna Chatzigiannidou
Are you an #EarlyCareerScientist ready to showcase your work?
#LAMECS2026 is a fantastic opportunity to present your first talk or poster, build confidence and network.
Submit your abstract by 22 March 2026: https://appliedmicrobiology.org/ems-event-calendar/lamecs-2026/submit-your-abstract.html
#LAMECS2026 is a fantastic opportunity to present your first talk or poster, build confidence and network.
Submit your abstract by 22 March 2026: https://appliedmicrobiology.org/ems-event-calendar/lamecs-2026/submit-your-abstract.html
February 17, 2026 at 12:30 PM
Are you an #EarlyCareerScientist ready to showcase your work?
#LAMECS2026 is a fantastic opportunity to present your first talk or poster, build confidence and network.
Submit your abstract by 22 March 2026: https://appliedmicrobiology.org/ems-event-calendar/lamecs-2026/submit-your-abstract.html
#LAMECS2026 is a fantastic opportunity to present your first talk or poster, build confidence and network.
Submit your abstract by 22 March 2026: https://appliedmicrobiology.org/ems-event-calendar/lamecs-2026/submit-your-abstract.html
👩🔬On this #InternationalDayOfWomenAndGirlsInScience, we celebrate the women who opened doors and recommit to work together to ensure every girl in STEM can rise without barriers! #WomenInSTEM #WomenInScience
February 11, 2026 at 12:25 PM
👩🔬On this #InternationalDayOfWomenAndGirlsInScience, we celebrate the women who opened doors and recommit to work together to ensure every girl in STEM can rise without barriers! #WomenInSTEM #WomenInScience
Reposted by Ioanna Chatzigiannidou
On International Day of Women and Girls in Science 🔬👩🔬
We’re launching the Women Microbiologists Network: a member-led networking and discussions event for women in microbiology by Dr. Enas Newire.
Read the news story and join:
🔗 https://microb.io/4ax5M5I
We’re launching the Women Microbiologists Network: a member-led networking and discussions event for women in microbiology by Dr. Enas Newire.
Read the news story and join:
🔗 https://microb.io/4ax5M5I
February 11, 2026 at 9:00 AM
On International Day of Women and Girls in Science 🔬👩🔬
We’re launching the Women Microbiologists Network: a member-led networking and discussions event for women in microbiology by Dr. Enas Newire.
Read the news story and join:
🔗 https://microb.io/4ax5M5I
We’re launching the Women Microbiologists Network: a member-led networking and discussions event for women in microbiology by Dr. Enas Newire.
Read the news story and join:
🔗 https://microb.io/4ax5M5I
Reposted by Ioanna Chatzigiannidou
In #Microbiome
🔍Profiling the microbial plasmidome and resistome on 78 samples across European urban water systems
🦠Bacteroides emerged as a major driver of antimicrobial resistance dynamics across different wastewater treatment processes
➡️ doi.org/qn2v #OpenAccess
🔍Profiling the microbial plasmidome and resistome on 78 samples across European urban water systems
🦠Bacteroides emerged as a major driver of antimicrobial resistance dynamics across different wastewater treatment processes
➡️ doi.org/qn2v #OpenAccess
January 28, 2026 at 9:20 AM
In #Microbiome
🔍Profiling the microbial plasmidome and resistome on 78 samples across European urban water systems
🦠Bacteroides emerged as a major driver of antimicrobial resistance dynamics across different wastewater treatment processes
➡️ doi.org/qn2v #OpenAccess
🔍Profiling the microbial plasmidome and resistome on 78 samples across European urban water systems
🦠Bacteroides emerged as a major driver of antimicrobial resistance dynamics across different wastewater treatment processes
➡️ doi.org/qn2v #OpenAccess
Gut microbiota has previously been linked to immune developement and allergies. But what is the mechanism behind? Find more about the role of Bifidobacteria 🦠, aromatic lactates and immune resilience in babies 👶 in the recent paper from our group @natmicrobiol.nature.com
shorturl.at/peaI1 #microsky
shorturl.at/peaI1 #microsky
Early-life colonization by aromatic-lactate-producing bifidobacteria lowers the risk of allergic sensitization - Nature Microbiology
Vaginal birth, exclusive breastfeeding and early contact with siblings promote colonization of the infant gut with bifidobacteria capable of producing aromatic lactates, a microbial and metabolite sig...
www.nature.com
January 20, 2026 at 3:34 PM
Gut microbiota has previously been linked to immune developement and allergies. But what is the mechanism behind? Find more about the role of Bifidobacteria 🦠, aromatic lactates and immune resilience in babies 👶 in the recent paper from our group @natmicrobiol.nature.com
shorturl.at/peaI1 #microsky
shorturl.at/peaI1 #microsky
Reposted by Ioanna Chatzigiannidou
We’re excited to launch our 2026 grants portfolio, designed to support microbiologists at every stage of their journey.
🔎 Explore all our 2026 grants:
appliedmicrobiology.org/funding.html
🔎 Explore all our 2026 grants:
appliedmicrobiology.org/funding.html
January 12, 2026 at 4:16 PM
We’re excited to launch our 2026 grants portfolio, designed to support microbiologists at every stage of their journey.
🔎 Explore all our 2026 grants:
appliedmicrobiology.org/funding.html
🔎 Explore all our 2026 grants:
appliedmicrobiology.org/funding.html
Ready to go! Exciting day for the postdocs at DTU Bioengineering as our first Postdoc Day is starting 🧑🔬 #postdoc #academiccareer
November 27, 2025 at 9:11 AM
Ready to go! Exciting day for the postdocs at DTU Bioengineering as our first Postdoc Day is starting 🧑🔬 #postdoc #academiccareer
Reposted by Ioanna Chatzigiannidou
It’s World #AMR Awareness Week.
Did you know misusing antibiotics leads to drug resistance and side effects?
Learn about #AntimicrobialResistance (AMR) 👉bit.ly/AMRweek2025
Did you know misusing antibiotics leads to drug resistance and side effects?
Learn about #AntimicrobialResistance (AMR) 👉bit.ly/AMRweek2025
November 18, 2025 at 6:00 AM
It’s World #AMR Awareness Week.
Did you know misusing antibiotics leads to drug resistance and side effects?
Learn about #AntimicrobialResistance (AMR) 👉bit.ly/AMRweek2025
Did you know misusing antibiotics leads to drug resistance and side effects?
Learn about #AntimicrobialResistance (AMR) 👉bit.ly/AMRweek2025
Reposted by Ioanna Chatzigiannidou
"Too often #AMR is framed as an immense although conceptually simple challenge: delay resistance to current drugs and produce new drugs. But we need to go beyond this, we need to pull every lever at our disposal to minimise infection even before we turn to drugs."
www.thelancet.com/journals/lan...
www.thelancet.com/journals/lan...
AMR is more complicated than a lack of drugs
Later this month (Nov 18–24) is World AMR Awareness Week (WAAW), the annual reminder
of this long smouldering crisis in modern health care. This is the first year with
the new name as it was formerly ...
www.thelancet.com
October 13, 2025 at 8:52 AM
"Too often #AMR is framed as an immense although conceptually simple challenge: delay resistance to current drugs and produce new drugs. But we need to go beyond this, we need to pull every lever at our disposal to minimise infection even before we turn to drugs."
www.thelancet.com/journals/lan...
www.thelancet.com/journals/lan...
Reposted by Ioanna Chatzigiannidou
🥛El #kéfir modula receptores intestinales implicados en la respuesta del sistema inmunitario
🔬Investigadoras del @iatacsic.bsky.social demuestran en ensayos ‘in vitro’ que esta bebida regula distintas vías de señalización inmune a nivel intestinal
👉 https://f.mtr.cool/amstnygbml
🔬Investigadoras del @iatacsic.bsky.social demuestran en ensayos ‘in vitro’ que esta bebida regula distintas vías de señalización inmune a nivel intestinal
👉 https://f.mtr.cool/amstnygbml
November 3, 2025 at 10:11 AM
🥛El #kéfir modula receptores intestinales implicados en la respuesta del sistema inmunitario
🔬Investigadoras del @iatacsic.bsky.social demuestran en ensayos ‘in vitro’ que esta bebida regula distintas vías de señalización inmune a nivel intestinal
👉 https://f.mtr.cool/amstnygbml
🔬Investigadoras del @iatacsic.bsky.social demuestran en ensayos ‘in vitro’ que esta bebida regula distintas vías de señalización inmune a nivel intestinal
👉 https://f.mtr.cool/amstnygbml
Reposted by Ioanna Chatzigiannidou
An antivenom combining eight alpaca- and llama-derived nanobodies neutralizes toxins from a broad range of snake venoms #NBThighlight www.nature.com/articles/s41...
Nanobody-based recombinant antivenom for cobra, mamba and rinkhals bites - Nature
A recombinant antivenom composed of eight nanobodies provides broad protection against venom-induced lethality and dermonecrosis in mice challenged with venoms from cobras, mambas and rinkha...
www.nature.com
October 31, 2025 at 12:25 PM
An antivenom combining eight alpaca- and llama-derived nanobodies neutralizes toxins from a broad range of snake venoms #NBThighlight www.nature.com/articles/s41...
Reposted by Ioanna Chatzigiannidou
🧪🦠🖥️🧬🧫🔬 The Roadmap for equitable use of public microbiome data -including the Data Reuse Information Tag (DRI)- by the #DataReuseConsortium.
Must read if you use or produce microbiome data!
Kudos to the Data Reuse Core Team for their hard work!
doi.org/10.1038/s415...
Must read if you use or produce microbiome data!
Kudos to the Data Reuse Core Team for their hard work!
doi.org/10.1038/s415...
September 26, 2025 at 11:24 AM
🧪🦠🖥️🧬🧫🔬 The Roadmap for equitable use of public microbiome data -including the Data Reuse Information Tag (DRI)- by the #DataReuseConsortium.
Must read if you use or produce microbiome data!
Kudos to the Data Reuse Core Team for their hard work!
doi.org/10.1038/s415...
Must read if you use or produce microbiome data!
Kudos to the Data Reuse Core Team for their hard work!
doi.org/10.1038/s415...
The #EESMicrobiome in Heildeberg has been a blast! Inspiring talks and top discussions with peers 🤩 and I got to present some of our latest research at the Disease Systems Immunology group regarding 🌱fiber and 🦠 gut microbes!
@events.embl.org
@events.embl.org
September 26, 2025 at 12:03 PM
The #EESMicrobiome in Heildeberg has been a blast! Inspiring talks and top discussions with peers 🤩 and I got to present some of our latest research at the Disease Systems Immunology group regarding 🌱fiber and 🦠 gut microbes!
@events.embl.org
@events.embl.org
Reposted by Ioanna Chatzigiannidou
🦠🌍 Welcome to Day 2 of #EESMicrobiome
We’re kicking things off with Session 2: Functional insights into microbial communities 🧬
🔹 First talk:
“Small proteins of the human microbiome and beyond”
by Luis Pedro Coelho – Queensland University of Technology
Stay tuned for more exciting science!
We’re kicking things off with Session 2: Functional insights into microbial communities 🧬
🔹 First talk:
“Small proteins of the human microbiome and beyond”
by Luis Pedro Coelho – Queensland University of Technology
Stay tuned for more exciting science!
September 17, 2025 at 7:52 AM
🦠🌍 Welcome to Day 2 of #EESMicrobiome
We’re kicking things off with Session 2: Functional insights into microbial communities 🧬
🔹 First talk:
“Small proteins of the human microbiome and beyond”
by Luis Pedro Coelho – Queensland University of Technology
Stay tuned for more exciting science!
We’re kicking things off with Session 2: Functional insights into microbial communities 🧬
🔹 First talk:
“Small proteins of the human microbiome and beyond”
by Luis Pedro Coelho – Queensland University of Technology
Stay tuned for more exciting science!
Reposted by Ioanna Chatzigiannidou
Nice paper on the temporal dynamics of early infancy. Once again, it was shown that Escherichia & Klebsiella correlate with higher ARG load, and their abundance is in turn negatively associated with Bifidos. Kudos to the authors for the excellent paper!
rdcu.be/eDRPa
rdcu.be/eDRPa
Temporal dynamics and microbial interactions shaping the gut resistome in early infancy
Nature Communications - Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively...
rdcu.be
September 3, 2025 at 8:39 AM
Nice paper on the temporal dynamics of early infancy. Once again, it was shown that Escherichia & Klebsiella correlate with higher ARG load, and their abundance is in turn negatively associated with Bifidos. Kudos to the authors for the excellent paper!
rdcu.be/eDRPa
rdcu.be/eDRPa
Reposted by Ioanna Chatzigiannidou
Temporal dynamics and #microbial interactions shaping the #gut #resistome in early infancy ...
| #antimicrobialresistance | #AMR | #antibiotic | #genes | #Ecoli | Via @nature.com
| #antimicrobialresistance | #AMR | #antibiotic | #genes | #Ecoli | Via @nature.com
Temporal dynamics and microbial interactions shaping the gut resistome in early infancy - Nature Communications
Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively inhibit antimicrobial…
www.nature.com
September 1, 2025 at 1:03 PM
Temporal dynamics and #microbial interactions shaping the #gut #resistome in early infancy ...
| #antimicrobialresistance | #AMR | #antibiotic | #genes | #Ecoli | Via @nature.com
| #antimicrobialresistance | #AMR | #antibiotic | #genes | #Ecoli | Via @nature.com
Reposted by Ioanna Chatzigiannidou
🍼 Antibiotic resistance starts early
A study of infant gut bacteria found antibiotic resistance genes appear within the first week of life, peaking at 6 months.
🔗 www.nature.com/articles/s41...
#SciComm #Microbiome 🧪
A study of infant gut bacteria found antibiotic resistance genes appear within the first week of life, peaking at 6 months.
🔗 www.nature.com/articles/s41...
#SciComm #Microbiome 🧪
Temporal dynamics and microbial interactions shaping the gut resistome in early infancy - Nature Communications
Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively inhibit antimicrobial resi...
www.nature.com
September 1, 2025 at 6:14 PM
🍼 Antibiotic resistance starts early
A study of infant gut bacteria found antibiotic resistance genes appear within the first week of life, peaking at 6 months.
🔗 www.nature.com/articles/s41...
#SciComm #Microbiome 🧪
A study of infant gut bacteria found antibiotic resistance genes appear within the first week of life, peaking at 6 months.
🔗 www.nature.com/articles/s41...
#SciComm #Microbiome 🧪
👶 Curious about infant gut microbiota and 🧬 antimicrobial resistance? Have a look at our recent publication @natcomms.nature.com
#microbiome #infantgut #AMR
www.nature.com/articles/s41...
#microbiome #infantgut #AMR
www.nature.com/articles/s41...
Temporal dynamics and microbial interactions shaping the gut resistome in early infancy - Nature Communications
Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively inhibit antimicrobial resi...
www.nature.com
September 1, 2025 at 2:32 PM
👶 Curious about infant gut microbiota and 🧬 antimicrobial resistance? Have a look at our recent publication @natcomms.nature.com
#microbiome #infantgut #AMR
www.nature.com/articles/s41...
#microbiome #infantgut #AMR
www.nature.com/articles/s41...
Reposted by Ioanna Chatzigiannidou
Thrilled to share our #Comment in @natmicrobiol.nature.com
A collaborative effort by a fantastic group of researchers across disciplines!
💬We explored how interdisciplinary microbiology can thrive when early-career researchers are included and supported.
📄 doi.org/10.1038/s415...
A collaborative effort by a fantastic group of researchers across disciplines!
💬We explored how interdisciplinary microbiology can thrive when early-career researchers are included and supported.
📄 doi.org/10.1038/s415...
August 27, 2025 at 8:21 AM
Thrilled to share our #Comment in @natmicrobiol.nature.com
A collaborative effort by a fantastic group of researchers across disciplines!
💬We explored how interdisciplinary microbiology can thrive when early-career researchers are included and supported.
📄 doi.org/10.1038/s415...
A collaborative effort by a fantastic group of researchers across disciplines!
💬We explored how interdisciplinary microbiology can thrive when early-career researchers are included and supported.
📄 doi.org/10.1038/s415...
Soil is the most diverse microbial ecosystem, which makes microbiome studies with shotgun sequencing extremely tricky!
In our last paper @imetascience.bsky.social, we show that co-assembly increases gene and genome recovery
tinyurl.com/59t4z8fh
#soilmicrobiome #metagenomics
In our last paper @imetascience.bsky.social, we show that co-assembly increases gene and genome recovery
tinyurl.com/59t4z8fh
#soilmicrobiome #metagenomics
Unveiling soil microbial diversity through ultra‐deep short‐read metagenomic sequencing and co‐assembly
By combining ultra-deep short-read shotgun metagenomic sequencing with 5-sample co-assembly across 600 agricultural soil samples, we significantly enhanced the representation and recovery of microbia....
onlinelibrary.wiley.com
August 26, 2025 at 1:59 PM
Soil is the most diverse microbial ecosystem, which makes microbiome studies with shotgun sequencing extremely tricky!
In our last paper @imetascience.bsky.social, we show that co-assembly increases gene and genome recovery
tinyurl.com/59t4z8fh
#soilmicrobiome #metagenomics
In our last paper @imetascience.bsky.social, we show that co-assembly increases gene and genome recovery
tinyurl.com/59t4z8fh
#soilmicrobiome #metagenomics
Reposted by Ioanna Chatzigiannidou
@theipcinfo.bsky.social warns: the worst-case scenario of #famine is unfolding in #Gaza.
Mass starvation, malnutrition, and disease are driving a rise in hunger-related deaths.
@who.int calls for urgent access for food and medical aid into Gaza at scale.
Ceasefire.
Peace is the best medicine!
Mass starvation, malnutrition, and disease are driving a rise in hunger-related deaths.
@who.int calls for urgent access for food and medical aid into Gaza at scale.
Ceasefire.
Peace is the best medicine!
July 29, 2025 at 10:17 AM
@theipcinfo.bsky.social warns: the worst-case scenario of #famine is unfolding in #Gaza.
Mass starvation, malnutrition, and disease are driving a rise in hunger-related deaths.
@who.int calls for urgent access for food and medical aid into Gaza at scale.
Ceasefire.
Peace is the best medicine!
Mass starvation, malnutrition, and disease are driving a rise in hunger-related deaths.
@who.int calls for urgent access for food and medical aid into Gaza at scale.
Ceasefire.
Peace is the best medicine!
Diving into the HMO and fiber degradation potential of the infant gut microbiome during weaning 👶 great work led by Yunjeong So at Maher Abou Hachem’s lab and I am happy to be part of it! #microbiome
Dual human milk oligosaccharide-fibre utilisation drives gut microbiome selection during weaning https://www.biorxiv.org/content/10.1101/2025.07.24.666491v1
July 26, 2025 at 7:20 AM
Diving into the HMO and fiber degradation potential of the infant gut microbiome during weaning 👶 great work led by Yunjeong So at Maher Abou Hachem’s lab and I am happy to be part of it! #microbiome
Reposted by Ioanna Chatzigiannidou
New Review Out!
We explore how droplet microfluidics is opening new doors in microbial ecology - enabling single-cell functional insights into growth, metabolism & interactions.
🔗 doi.org/10.1093/fems...
#MicrobialEcology #DropletMicrofluidics #Microbiology
We explore how droplet microfluidics is opening new doors in microbial ecology - enabling single-cell functional insights into growth, metabolism & interactions.
🔗 doi.org/10.1093/fems...
#MicrobialEcology #DropletMicrofluidics #Microbiology
Droplet microfluidics for single-cell studies: a frontier in ecological understanding of microbiomes
Abstract. Recent advances in single-cell technologies have profoundly impacted our understanding of microbial communities—shedding light on cell-to-cell va
doi.org
July 24, 2025 at 12:15 PM
New Review Out!
We explore how droplet microfluidics is opening new doors in microbial ecology - enabling single-cell functional insights into growth, metabolism & interactions.
🔗 doi.org/10.1093/fems...
#MicrobialEcology #DropletMicrofluidics #Microbiology
We explore how droplet microfluidics is opening new doors in microbial ecology - enabling single-cell functional insights into growth, metabolism & interactions.
🔗 doi.org/10.1093/fems...
#MicrobialEcology #DropletMicrofluidics #Microbiology
Reposted by Ioanna Chatzigiannidou
Extraordinary keynote lecture by Prof. Chris Greening @greening.bsky.social about Microbial oxidation of atmospheric trace gases: from enzymes to ecosystems.
#FEMS2025 @femsmicro.org
#FEMS2025 @femsmicro.org
July 16, 2025 at 10:08 AM
Extraordinary keynote lecture by Prof. Chris Greening @greening.bsky.social about Microbial oxidation of atmospheric trace gases: from enzymes to ecosystems.
#FEMS2025 @femsmicro.org
#FEMS2025 @femsmicro.org