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Ka Wai Ma

@kawaima.bsky.social
292 followers 203 following 31 posts

Used to be a serial plant killer. Still is. Also known as an assistant research fellow at the institute of Plant and Microbial Biology (IPMB), Taipei, Taiwan, working on plant microbiota / plant microbiome and plant innate immunity

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Ka Wai Ma @kawaima.bsky.social · 26/08/2026
First paper from the Ma Lab@ IPMB published in ISMEJ. We identified a microbial imbalance mutant mimb-1 with an upregulated JA signaling output. (1/n) academic.oup.com/ismej/articl...
academic.oup.com
Upregulated jasmonate signaling shifts Arabidopsis microbiota interactions and stress adaptations through a positive feedback loop
Abstract. The model plant Arabidopsis thaliana hosts diverse microbial communities collectively known as the microbiota. The plant microbiota is generally
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Ryohei Thomas Nakano (Hokudai) @luckystrike1984.bsky.social · 14/11/2025
Was great visiting Ka-Wai @kawaima.bsky.social at Academia Sinica, Taiwan. Thanks for having me and for all the joyful, fruitful, and productive discussions!!
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Ka Wai Ma @kawaima.bsky.social · 14/11/2025
Are you expecting a new age of microbiome engineering Metagenomic editing of commensal bacteria in vivo using CRISPR-associated transposases www.science.org/doi/10.1126/...
science.org
Metagenomic editing of commensal bacteria in vivo using CRISPR-associated transposases
Although metagenomic sequencing has revealed a rich microbial biodiversity in the mammalian gut, methods to genetically alter specific species in the microbiome are highly limited. Here, we introduce ...
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Ákos T Kovács @evolvedbiofilm.bsky.social · 21/10/2025
Evolution of One Species Increases Resistance to Invasion in a Simple Synthetic Community Microbial Ecology link.springer.com/article/10.1...
link.springer.com
Evolution of One Species Increases Resistance to Invasion in a Simple Synthetic Community - Microbial Ecology
The species that make up a microbial community determine its potential function. A major goal of microbial ecology is to make assemblages of microbes — synthetic communities — with targeted applicatio...
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Gitta Coaker @gittacoaker.bsky.social · 22/09/2025
My department at UC Davis is hiring a mycologist, broadly interpreted. Please repost, share, and consider applying. recruit.ucdavis.edu/JPF07339
recruit.ucdavis.edu
Assistant Professor of Plant Pathology
University of California, Davis is hiring. Apply now!
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Ka Wai Ma @kawaima.bsky.social · 01/10/2025
A bacterial signal coordinates plant-microbe fitness trade-off to enhance sulfur deficiency tolerance in plants: Cell Host & Microbe www.cell.com/cell-host-mi...
cell.com
A bacterial signal coordinates plant-microbe fitness trade-off to enhance sulfur deficiency tolerance in plants
Mukherjee et al. report fitness trade-off between plants and the rhizosphere microbiome under sulfur deficiency, mediated by the tri-peptide signal glutathione. Competition among rhizosphere bacteria ...
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Ben Field 🌿 @benfield1.bsky.social · 30/09/2025
Discovery of a chromatin-associated complex (CACG) of ~16 proteins that negatively regulates the expression of nutrient-starvation-induced gene. CACG is of course controlled by TOR! #PlantScience www.nature.com/articles/s41...
nature.com
Nutrient-driven TOR signalling controls a chromatin-associated complex for orchestrating plant growth and stress tolerance - Nature Plants
A chromatin-associated complex, which is dynamically regulated by TOR kinase at the translational level, functions to suppress the transcription of stress-responsive genes marked by histone acetylation, thereby coordinating plant growth and stress tolerance.
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Ákos T Kovács @evolvedbiofilm.bsky.social · 11/09/2025
Super cool Pseudomonas-Bacillus interaction paper in @natmicrobiol.nature.com from Yun Chen with @gabrieleberg.bsky.social Phenazines shape Gram+ abundance & influence Bacillus cell biology Phenazines contribute to microbiome dynamics by targeting topoisomerase IV www.nature.com/articles/s41...
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Ka Wai Ma @kawaima.bsky.social · 02/09/2025
Our review article on the "Potential and challenges for application of microbiomes in agriculture" is published @theplantcell.bsky.social [1/n] doi.org/10.1093/plce...
doi.org
Potential and challenges for application of microbiomes in agriculture
Abstract. The plant microbiome can promote plant health and productivity through a multitude of mechanisms. Our understanding of plant–microbiome interacti
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Ka Wai Ma @kawaima.bsky.social · 29/08/2025
To my friends of the MPMI community, is there a way to minimize microbial aggregation e.g. Streptomyces during the culturing step?
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Tominaga K. (tomiken) @pacyc184.bsky.social · 19/08/2025
Adaptive pangenomic remodeling in the Azolla cyanobiont amid a transient microbiome | The ISME Journal | Oxford Academic academic.oup.com/ismej/advance-arti…
dx.doi.org
Adaptive pangenomic remodeling in the Azolla cyanobiont amid a transient microbiome
Abstract. Plants fix nitrogen in concert with diverse microbial symbionts, often recruiting them from the surrounding environment each generation. Vertical
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Ka Wai Ma @kawaima.bsky.social · 22/08/2025
A defined microbial community reproduces attributes of fine flavour chocolate fermentation nature.com/articles/s41... rdcu.be/eBN14
nature.com
A defined microbial community reproduces attributes of fine flavour chocolate fermentation - Nature Microbiology
An in-depth microbiological and metagenomic analysis of Colombian farm and fermentation facilities resulted in the design of a defined microbial community that can reproduce the flavour of fine chocol...
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SeppeKuehnLab @seppekuehnlab.bsky.social · 17/07/2025
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...
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Gitta Coaker @gittacoaker.bsky.social · 29/07/2025
Excited this paper is finally published! We focused on the inner concave surface of LRR RKs to expand bacterial flagellin perception in plants. Selection indicates expanded perception is more common than previously thought. Experiments led by @jerrytli.bsky.social www.nature.com/articles/s41...
nature.com
Unlocking expanded flagellin perception through rational receptor engineering - Nature Plants
Receptor kinase FLS2 detects the flg22 epitope of bacterial flagellin. Here the authors identify key residues on FLS2’s concave surface that enable expanded perception of flg22 variants, allowing the ...
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Marc Somssich @somssich.bsky.social · 07/07/2025
📜 Unlocking gene regulatory networks for crop resilience and sustainable agriculture 🧑‍🔬 Richalynn Leong, Xin He, Bob Sebastiaan Beijen, @dinglab.bsky.social, et al. 📔 @natbiotech.nature.com 🔗 www.nature.com/articles/s41... #️⃣ #PlantScience #PlantImmunity #Agronomy #PlantStress #PlantGenomics
nature.com
Unlocking gene regulatory networks for crop resilience and sustainable agriculture - Nature Biotechnology
Gene regulatory networks are crucial for understanding complex gene regulation in plants and could advance crop improvement for more sustainable and climate-resilient agricultural practices.
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Ka Wai Ma @kawaima.bsky.social · 07/07/2025
Do you know bacteria also have 'fight and flight' responses. I wrote an article summarizing the beautiful work of Carmen Beuzon. rdcu.be/eu8be If you find more interest after reading this short summary, the original article is here rdcu.be/eu8ng
rdcu.be
Coordinated action by individuals orchestrates infection through the division of labour
Nature Reviews Microbiology - In this Journal Club, Ka-Wai Ma discusses a paper that establishes that phenotypic heterogeneity and division of labour promote plant infection.
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Ka Wai Ma @kawaima.bsky.social · 16/05/2025
Friends from the MPMI committee. Your vote matters. The race is really tight, but I will testify based on personal experience that Wenbo is actively contributing to the MPMI committee, an advocate for diversity and a supporter for early career scientists including me. www.ismpmi.org/members/Page...
ismpmi.org
Wenbo Ma
Wenbo MaThe Sainsbury Laboratory, United KingdomView Statement​​IS-MPMI has been a cornerstone of my journey as a scientist and leader, from attending my first Congress in 2005 (Mérida, Mexico), to se...
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T3SS @t3sss.bsky.social · 02/04/2025
Pseudomonas syringae subpopulations cooperate by coordinating flagellar and type III secretion spatiotemporal dynamics to facilitate plant infection www.nature.com/articles/s41...
nature.com
Pseudomonas syringae subpopulations cooperate by coordinating flagellar and type III secretion spatiotemporal dynamics to facilitate plant infection - Nature Microbiology
Single-cell gene expression analysis reveals phenotypic heterogeneity to enable bacterial specialization over the course of plant colonization.
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Plantae.org @plantaeofficial.bsky.social · 31/03/2025
Plant Science Research Weekly -- A broad-spectrum antimicrobial peptide identified from Burkholderia bacterium (Plant Biotechnology Journal) (Summary by Yee-Shan Ku) plantae.org/a-broad-spec... #PlantaePSRW
plantae.org
A broad-spectrum antimicrobial peptide identified from Burkholderia bacterium | Plantae
Microbial pesticides are widely applied to improve crop production, but the active molecules are largely unexplored. In a recent study, Mohamed et al., identified an antimicrobial peptide (AMP) from…
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Ka Wai Ma @kawaima.bsky.social · 01/04/2025
‼️we are pleased to share the first work coming from my lab on biorxiv. Misregulation of the jasmonate signaling pathway leads to altered plant microbiota interaction and plant stress responses biorxiv.org/content/10.1... 1/n
biorxiv.org
Misregulation of the jasmonate signaling pathway leads to altered plant microbiota interaction and plant stress responses
The model plant Arabidopsis thaliana hosts diverse microbial communities collectively known as the microbiota. The plant microbiota is generally taxonomically structured. Some of the members can promo...
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Cell - a Cell Press journal @cp-cell.bsky.social · 12/03/2025
Now online! Crop root bacterial and viral genomes reveal unexplored species and microbiome patterns
dlvr.it
Crop root bacterial and viral genomes reveal unexplored species and microbiome patterns
Comprehensive bacterial and viral genome collections from crop roots uncover a large number of unexplored species and highlight conserved patterns within root microbiomes. Genomes and isolates are accessible at www.cropmicrobiome.com.
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Jean-Michel Ané @jeanmichelane.bsky.social · 17/03/2025
Great review from @angelakent.bsky.social and @sierrathescientist.bsky.social on the nitrogen problem in agriculture and microbial solutions sco.lt/5Xwiu0
sco.lt
Navigating nitrogen sustainability with microbiome-associated phenotypes | Plant-Microbe Symbiosis
Crop microbiomes promote plant health through various mechanisms, including nutrient provisioning. However, agriculture neglected the importance of these microbiome-associated phenotypes (MAPs) in con...
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MicroSOS @microsos.bsky.social · 17/03/2025
🌱Announcing 3 More Keynote Speakers for #PMS2025! 🌱 🔬 Manuel Delgado Baquerizo – IRNAS-CSIC 🌱 María J. Pozo – Estación Experimental del Zaidín (CSIC) 🌍 Lucas William Mendes – University of Sao Paulo Join us at #PMS2025 in Malaga in November. Register now: 6thplantmicrobiomesymposium2025.com
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Ákos T Kovács @evolvedbiofilm.bsky.social · 17/03/2025
Plant growth promotion through repression of defenses by leaf microbiota @cp-cellhostmicrobe.bsky.social Preview by Benjamin Gourion on the recent (below) publication from Gabriel Castrillo www.cell.com/cell-host-mi...
cell.com
Plant growth promotion through repression of defenses by leaf microbiota
Plant development can be drastically stimulated by beneficial microorganisms. However, the underlying mechanisms are not always understood. In this issue of Cell Host & Microbe, Castrillo et al. inves...
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PlantEvolution 🌱🌾 @plantevolution.bsky.social · 10/03/2025
Congratulations to Jeff Dangl, Jonathan Jones & Brian Staskawicz, winners of the 2025 Wolf Prize in Agriculture! Well done, my friends! www.youtube.com/live/gU8VBaR...
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International Society of Root Research @rootscientists.bsky.social · 12/03/2025
📢 The deadline to submit your abstract for #Rhizosphere6 has been extended to this Friday March 14! Looking forward to see you there!
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Marc Somssich @somssich.bsky.social · 19/03/2024
#PlantScienceClassics #7: The ZigZag Model. 15 years ago @jonathandgjones.bsky.social & Jeff Dangl published their review integrating Pattern/PAMP-Triggered Immunity (PTI) & Effector-Triggered Immunity (ETI) into one unified model of ‘The plant immune system’. doi.org/10.1038/natu...
Jeff Dangl and Jonathan Jones in front of a boat named ZIGZAGZIG.
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International Society for Molecular Plant-Microbe Interactions @ismpmi.bsky.social · 12/03/2025
Deadline extended! You wanted more time, and we heard you. The #2025ISMPMI Congress abstract submission deadline is now March 26. Don’t miss your chance to present your research and connect with top scientists! Submit now: www.ismpmi.org/Events/2025C...
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Asaf Levy @asaflevylab.bsky.social · 09/03/2025
This is cool. www.science.org/doi/full/10....
science.org
Pseudomonas aeruginosa assembles H1-T6SS in response to physical and chemical damage of the outer membrane
The assembly of the P. aeruginosa H1-T6SS is triggered by outer-membrane damage induced chemically or mechanically by an AFM tip.
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Matt Hutchings @handle.invalid · 06/03/2025
Streptomyces are not even in the top 50 most studied and yet they provide so many important molecules including >50% of clinically used antibiotics. Same for TB, the most deadly human pathogen. Do most scientists take the easy route?
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Ákos T Kovács @evolvedbiofilm.bsky.social · 02/03/2025
PhD on Plant-Microbe interactions with Olga Lastovetsy at @ucddublin.bsky.social
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Klaus Schlaeppi @kschlaeppi.bsky.social · 27/02/2025
Preprint alert: Here we report MMF1 - "a microbiota receptor” - through which Arabidopsis plants perceive their soil microbiome. Perception optimises root microbiome composition, immune status and ultimately leads to better growth. Happy reading... www.biorxiv.org/content/10.1...
biorxiv.org
A TNL receptor mediates microbiome feedbacks in Arabidopsis
Plant performance depends on the soil microbiome. While microbiome feedbacks are well documented, the mechanisms by which plants perceive and mediate these feedbacks remain unclear. We established a f...
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Yasin Dagdas @plantophagy.bsky.social · 20/02/2025
Loved this article 😍 Make your own definition of success; don't let others define it for you: www.science.org/content/arti...
science.org
How I found professional satisfaction by adjusting my definition of success
As a professor at a teaching-focused university, this scientist has “discovered not just success, but significance”
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Ka Wai Ma @kawaima.bsky.social · 20/02/2025
Congratulations to Jana Ordon and all coauthors!!! Our new study is published in @natureplants.bsky.social "Conserved immunomodulation and variation in host association by Xanthomonadales commensals in Arabidopsis root microbiota" (0/n) rdcu.be/eauzt
rdcu.be
Conserved immunomodulation and variation in host association by Xanthomonadales commensals in Arabidopsis root microbiota
Nature Plants - The authors show that immunosuppression is highly conserved in the bacterial order Xanthomonadales. This feature, which preceded their specialization as host-adapted pathogens,...
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Ka Wai Ma @kawaima.bsky.social · 17/02/2025
Something exciting is in line. Stay tuned!
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Ka Wai Ma @kawaima.bsky.social · 16/02/2025
Finally I am here. For old and new friends, please add me if I have not done so!
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