We are delighted to announce that Ahmed R. Ismaieel successfully defended his PhD thesis on the olfactory role of mouthparts, legs and genitalia in the hawkmoth Manduca sexta. Congratulations to Ahmed and his supervisors, Sonja Bisch-Knaden, @nmvandam.bsky.social, and Bill Hansson. Well done!

We are thrilled that Matilde Florean, a former PhD in the @oconnorlab.bsky.social, received the Otto Hahn Medal by @maxplanck.de for groundbreaking research on the convergent evolution of the biosynthesis of specialized metabolites in plants. Congratulations, Matilde! www.ice.mpg.de/558167/otto-...

Researchers from the @museuciencies.cat, @ibe-barcelona.bsky.social, and our @kaltenpoth-lab.bsky.social have discovered UV-induced blue-green biofluorescence in the fire salamander which may be involved in courtship, migration, or predator warning. www.ice.mpg.de/557727/PR_Bu...

Forschende des Naturkundemuseums, des Instituts für Evolutionsbiologie des CSIC und der Universität Pompeu Fabra in Barcelona sowie des Max-Planck-Instituts für chemische Ökologie in Jena entdecken UV-induzierten blaugrüne Biofluoreszenz b... weiterlesen

Our international team of 24 ran strong for "Max Planck!" at the Jenaer Firmenlauf. On #DiversityDay2026, we also ran for #WeltoffenesThüringen because Thuringia should be a place where everyone feels welcome, valued, and safe. Thumbs up to our team for spreading the word! #JenasFirmenLaufen

Congratulations to @hellmichgroup.bsky.social! The Max Planck Society awarded her a Max Planck Fellowship. We are happy to have her as a Max Planck Fellow and look forward to intensifying our collaboration with her. www.ice.mpg.de/556225/ute-h...

Are you a master's student who is passionate about insects, smells, and discovery? We are offering a hands-on master's thesis project studying how flies respond to complex odors in nature, and you could join the research team! Apply now: jobs.ice.mpg.de/jobposting/2...

Fascinating research results from a team in our @oconnorlab.bsky.social including Ryan Alam, Tobias Köllner and Danny Kessler on blister beetle larvae mimicking flowers and their scent.

We congratulate Prof. Wilhelm Boland on receiving the Xience Award 2026! 👏 In recognition of his outstanding scientific achievements and long-standing support, the Leibniz-HKI has presented the second Xience award to the chemist from @mpi-ce.bsky.social. 👉 More: www.leibniz-hki.de/en/press-rel...

Happy to announce that Anh Hai Vu from the @oconnorlab.bsky.social has successfully defended her PhD thesis on "Understanding plant natural product biosynthesis using single-cell mass spectrometry"! Congratulations to her and her supervisors Sarah O'Connor and Lorenzo Caputi!

A research team from @yukoulrich.bsky.social‘s lab at our institute has identified the first brood pheromone in ants—thereby proving that larvae of clonal raider ants actively influence the colony’s reproduction cycle. www.ice.mpg.de/550783/PR_Pi...

Ronja Krüsemer and Martin Kaltenpoth of @kaltenpoth-lab.bsky.social et al. report in @natcomms.nature.com on the rapid loss of a beetle symbiont following infection with another bacterium. This could be the key to systematically investigating symbiont exchange. www.ice.mpg.de/549447/PR_Kr...

We are very proud: Julio Antonio Otárola Jiménez successfully defended his PhD thesis today! His research topic was "From Courtship to Egg-Laying: How Chemical Cues and Experience Shape Reproductive Strategies in Drosophila melanogaster". Congratulations, Julio!

In this Nature podcast, our director, Sarah O'Connor from the @oconnorlab.bsky.social, explains how she and her team solved the mystery of quinine biosynthesis. www.youtube.com/watch?v=AeN8...

The process by which the cinchona tree produces quinine has been elucidated. In a new study published in @nature.com, researchers from the @oconnorlab.bsky.social and the @universityofga.bsky.social unveil the biosynthetic pathway behind this 400-year-old secret. www.ice.mpg.de/548102/PR_Ki...

On the International Day of Women and Girls in Science we feature 6 amazing women — @mariferrarini.bsky.social, Shristee Panthee, Sonja Bisch-Knaden, @yukoulrich.bsky.social, Xinyi Cheng and @shabmohammadi.bsky.social. Their statements inspire a more inclusive future for women in science.

Markus Knaden et al. from the Odor-Guided Behavior Group in collab. with @yukoulrich.bsky.social report in PNAS that ozone destroys colony-specific odors causing attacks within the colony – a dramatic example of how human pollution can disrupt social systems in nature. www.ice.mpg.de/530492/PR_Ji...

Researchers from our Dept. of Biochemistry and @uni-kiel.de led by @sunsicker.bsky.social show in @pnas.org that the loss of plant diversity has an impact on the odor signals emitted by plant communities—with consequences for their interactions with other organisms. www.ice.mpg.de/527832/PR_Me...

Ruo Sun, Jonathan Gershenzon et al. from our Biochemistry Dept. report in PNAS that the insect-pathogenic fungus Beauveria bassiana can detoxify the defense substances of bark beetles, which originate from plant precursors, and successfully infect the insects. www.ice.mpg.de/526562/PR_Sun

The new PULS/CE is out! Topics: Science depends on trust A recipe from two eras Pseudoenzyme controls indole production Plus: An inspiring interview with @shabmohammadi.bsky.social on her life as a researcher and mother, and how science has always been her dream. www.ice.mpg.de/257126/newsl...

Maximilian Lehenberger, Jonathan Gershenzon et al. show in The ISME Journal how a symbiotic fungus helps the ship-timber beetle survive in dead wood. www.ice.mpg.de/525357/PR_Le...

The reed leafhopper has become a major crop pest targeting sugar beets & potatoes. Scientists from @kaltenpoth-lab.bsky.social et al. show that it hosts 7 bacteria, 2 of which spread plant diseases. The microbial community may be key to its success in switching hosts. www.ice.mpg.de/524703/PR_Vo...

Huge congratulations to Pamela Medina van Berkum on successfully defending her PhD! Supervised by @sunsicker.bsky.social and Jonathan Gershenzon, her work on how plant biodiversity shapes chemical defenses bridges ecology, chemistry, and evolution. Pam is now part of Sybille’s group at @uni-kiel.de.

Sodalis bacteria use a network of nanotubes aka tubenets to reach beyond the boundary of their own cells and aqcuire nutrients within the competitive environment of host cells. It was a pleasure working with you and your team, seeing the project evolve over the years! Thanks for having us on board!

We are very proud - yesterday, Somasundar Arumugam successfully defended his PhD thesis on "Exploring innate and learned sensory behaviors in Drosophila under natural and perturbed context". He was supervised by Prof. Silke Sachse. Congratulations!!!!

A research team from the @oconnorlab.bsky.social has made a breakthrough in elucidating the biosynthesis of plant natural products by combining scRNA-seq and scMS in the same plant cell. The study was published in @pnas.org. www.ice.mpg.de/516369/PR_Ka...

Doctoral researchers from the Max Planck Institute for Chemical Ecology, the Max Planck Institute for Biogeochemistry, and the Max Planck Institute for Geoanthropology came together for the first Max Planck PhD Day in Jena which included speed dating and skills-sharing sessions and networking.

Very exciting to finally see our iridoid cyclase ICYC online @natplants.nature.com! A joined effort with Robin Buell’s lab with Josh Wood generating snRNA-seq, and my student Chloée Tymen performing the initial experiment. #natprod #PlantScience @mpi-ce.bsky.social www.nature.com/articles/s41...

Missing piece of the puzzle for the formation of iridoids found! @maitecolinas.bsky.social from the @oconnorlab.bsky.social et al. have identified the enzyme responsible for iridoid biosynthesis—the key to natural products with medicinal potential. www.ice.mpg.de/512932/PR_Co...

New study in @science.org reveals why some animals display striking colors to warn predators while others use camouflage. Our former group leader @hannahmrowland.bsky.social, now @livuni-ives.bsky.social was part of the global project on the evolution of animal colors. www.ice.mpg.de/511966/PR_Me...

A recipe from two eras for protection against bark beetles: Andrew O’Donnell et al. show in PNAS that some resin diterpenes are older than conifers themselves, while others developed independently—presumably to protect against bark beetles. www.ice.mpg.de/510162/PR_OD...

HUGE congratulations also to Jessil Pajar on successfully defending her PhD thesis! 🎓 Her research, supervised by @nmvandam.bsky.social, explores novel strategies to strengthen plant resistance against a major pest, drawing innovative insights from interactions with microscopic nematodes.

We are proud to announce that Sol Yepes has successfully defended her PhD thesis on intraspecific chemodiversity in Black Poplar supervised by @sunsicker.bsky.social. Her work advances our understanding of plant diversity as a foundation for ecosystem resilience. Congratulations!

Featured on NPR: @shabmohammadi.bsky.social and her team study how predators adapted to toxic substances to safely consume toxic prey. Humans have used these toxins for thousands of years, even prescribing them to treat heart failure. Listen to the whole story: www.npr.org/2025/08/19/n...

Researchers from the @kaltenpoth-lab.bsky.social show in @emboreports.org ‬that despite having only a tiny genome, the symbionts of reed beetles can adapt their gene activity flexibly to the developmental stages and ambient temperatures of their hosts. www.ice.mpg.de/509125/PR_Ca...

Meet our director Sarah O'Connor, @oconnorlab.bsky.social, a presence to be reckoned with in the plant science community! Read the latest interview with @newphyt.bsky.social ‬to learn about her passion for plant science and the scientists who inspired her: nph.onlinelibrary.wiley.com/doi/10.1111/...

This is Ahmed Ismaieel, a PhD candidate in our IMPRS who studies moths in the windtunnel. His research into the ability of moths to 'smell' is providing new insights into the intricate relationships between insects and their environments. Read about his journey & more: www.ice.mpg.de/257126/newsl...

Hala Sardouk, a PhD candidate in @shabmohammadi.bsky.social's group, is exploring how organisms adapt to environmental toxins at the molecular level, shedding light on the complex interactions between organisms & their environments. More about her journey & our IMPRS: www.ice.mpg.de/257126/newsl...

Discovering the perfect PhD fit! Iulia Barutia shares her journey to finding our IMPRS program, where she's thriving with a supportive community & access to top resources. Don't give up on your academic dreams! Read about her journey & more: www.ice.mpg.de/257126/newsl...

Meet Johann de Beer, a doctoral researcher studying the symbiotic relationship between Lagria beetles & bacteria in the @kaltenpoth-lab.bsky.social‬. His research explores how beneficial bacteria colonize & defend their hosts. Read more about his journey & more: www.ice.mpg.de/257126/newsl...

Here, the authors @oconnorlab.bsky.social @mpi-ce.bsky.social uncover the mechanism of epimerization behind uncommon 3R-containing alkaloids in Mitragyna speciosa (Kratom) and study their inclusion in downstream biosynthesis #PlantScience #natprod www.nature.com/articles/s41...

We are happy to announce that Ling Chuang from the @oconnorlab.bsky.social is one of the awardees of the Best Paper Award from the Wilhelm Pfeffer Foundation. Congratulations to her and the other awardees Sara Leite Dias, a member of the @drsativa.bsky.social lab and our IMPRS, and Shanyu Liu.

@science.org paper: doi.org/10.1126/scie... @drsativa.bsky.social ( @leibnizipk.bsky.social ), @frankelab.bsky.social ‬ ( @unihannover.bsky.social ), and @mpi-ce.bsky.social 3/3

🤓New insights into biomass utilization: Researchers at @leibniz-hki.de and @mpi-ce.bsky.social I-CE have decoded the structure of the 🟡"Yellow Affinity Substance" from A. thermocellus, a pigment that binds cellulose and could boost biofuel production and antibiotic research. #biotech #research #ERC

Today is last day of the ICE-2025 International Chemical Ecology PhD course at our institute. For 2 weeks, 28 doctoral researchers from all over Europe, the US, and Canada studied plant-insect-microbe interactions, evolutionary processes, advanced methods, and even chemical communication in humans.

Lead author @matildeflorean.bsky.social‬ et al. from the @oconnorlab.bsky.social discover a "fake" enzyme in plants that enables the formation of free indole, a key molecule for defense & attracting pollinators. www.ice.mpg.de/496511/PR_Fl...

Scientists from our Department of Biochemistry show that spruce trees use a mixture of chemicals to combat bark beetles & fungi. New study in Functional Ecology confirms that plant defense is made more efficient by synergy effects AND the use of pest-specific defenses. www.ice.mpg.de/496050/PR_Za...

Researchers led by @maitecolinas.bsky.social from @oconnorlab.bsky.social ‬study the biosynthesis of ipecacuanha alkaloids. They report in @natchembio.nature.com ‬that two distantly related plants use similar approaches, but different enzymes and starting materials, to produce the same substance.