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Choukri Ahmed

@choukri.bsky.social

Ph.D. scholar Plant – Plant β€” Microbiota interactions Nantes Uni-πŸŒ±πŸ‡«πŸ‡·// M.Sc. Applied Plant Biotechnology Cadi-Ayyad univ. πŸ‡²πŸ‡¦ // Music snob. πŸ“Nantes, France.

150 Followers  |  600 Following  |  8 Posts  |  Joined: 07.11.2024  |  2.1002

Latest posts by choukri.bsky.social on Bluesky

The predation process of the nematode trapping fungus Arthrobotrys oligospora.
YouTube video by Fungal-Worm Lab IMB Academia Sinica The predation process of the nematode trapping fungus Arthrobotrys oligospora.

Did you know that some fungi are CARNIVOROUS? There are lots of species that do this, but I think Arthrobotrys oligospora is especially bonkers. These fungi sense when their prey (nematodes) are nearby by eavesdropping on the chemical signals that the nematodes use to communicate with each other πŸ§ͺπŸͺ²πŸ„

19.11.2025 01:59 β€” πŸ‘ 54    πŸ” 15    πŸ’¬ 2    πŸ“Œ 2
A shorter green-leafed plant on the left, marked "Ctrl" is about half the size of a similar looking plant on the right.

A shorter green-leafed plant on the left, marked "Ctrl" is about half the size of a similar looking plant on the right.

Scientists have identified a protein in poplar that, when turned off, results in increased growth, stronger cell walls and trees that are more disease-resistant.

More: jgi.doe.gov/user-science...

@jbei.lbl.gov @axelvisel.bsky.social @biosci.lbl.gov @berkeleylab.lbl.gov

19.11.2025 18:45 β€” πŸ‘ 8    πŸ” 4    πŸ’¬ 0    πŸ“Œ 1
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Assemblies of long-read metagenomes suffer from diverse errors Genomes from metagenomes have revolutionised our understanding of microbial diversity, ecology, and evolution, propelling advances in basic science, biomedicine, and biotechnology. Assembly algorithms...

I am very happy (and anxious) to share with you our most recent work in which we evaluated four of the most popular long-read assemblers,

www.biorxiv.org/content/10.1...

and tell you just a little bit about it in the following 🧡

28.04.2025 08:07 β€” πŸ‘ 134    πŸ” 71    πŸ’¬ 5    πŸ“Œ 7

I tried it, it's very interesting, maybe it's an oversight but i was unable to find a way to export UMAP graph (SVG, PNG etc)

29.10.2025 10:09 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Gibberellin transport affects lateral root growth through HY5 in response to far-red light (Kasper van Gelderen , Kyra van der Velde , Chia-kai Kang , Jessy Hollander , Alicia Koppenol , Orfeas Petropoulos , Putri Prasetyaningrum , Tuğba Akyüz , Ronald Pierik) doi.org/10.1093/plce... #PlantScience

28.08.2025 17:43 β€” πŸ‘ 19    πŸ” 11    πŸ’¬ 0    πŸ“Œ 1
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CRISPR meets AlphaFold: guiding SWEET10-enhanced oil production Enhancing seed oil content significantly benefits both human welfare and environmental sustainability. Clustered regularly interspaced short palindromic repeats/CRISPR-associated protein (CRISPR/Cas) and artificial intelligence (AI) are transformative tools for crop trait improvement. A recent study by Wang and colleagues reported that AlphaFold-guided CRISPR genome editing of SWEET10 boosts oil contents, highlighting a breakthrough in precision crop engineering.

CRISPR meets AlphaFold: guiding SWEET10-enhanced oil production #plantscience

13.08.2025 12:40 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Cracking the seed code: How nitrate directly breaks ABA signaling for germination (Nitin Uttam Kamble) doi.org/10.1093/plce... #PlantScience

04.08.2025 20:59 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1

Incredible opportunity #PlantSciJobs #plantscience #AcademicJobs

04.08.2025 10:09 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
AP1 floral induction system and experimental strategy used. (A) The AP1 floral induction system (pAP1::AP1-GR ap1 cal) was used in Arabidopsis. On the left, an SEM image of overproliferation inflorescence meristems of the ap1 cal mutant and on the right, an SEM image of many synchronized floral buds 5 d after dexamethasone (DEX) treatment are shown. (B) Overview of the workflow and sampling scheme. The extraction buffer Trizol was used, so from the same tissue sample, RNA and protein could be extracted. Subsequently, RNA-seq and LC-MS/MS were performed, followed by data analyses. SEM images provided by JosΓ© Luis Riechmann.

AP1 floral induction system and experimental strategy used. (A) The AP1 floral induction system (pAP1::AP1-GR ap1 cal) was used in Arabidopsis. On the left, an SEM image of overproliferation inflorescence meristems of the ap1 cal mutant and on the right, an SEM image of many synchronized floral buds 5 d after dexamethasone (DEX) treatment are shown. (B) Overview of the workflow and sampling scheme. The extraction buffer Trizol was used, so from the same tissue sample, RNA and protein could be extracted. Subsequently, RNA-seq and LC-MS/MS were performed, followed by data analyses. SEM images provided by JosΓ© Luis Riechmann.

πŸŒΈπŸ§¬πŸ”¬ INSIGHT πŸŒΈπŸ§¬πŸ”¬

Almost lost in translation: integrated transcriptome and proteome analyses for early Arabidopsis flower development - Stefan de Folter

πŸ“ Insight: doi.org/10.1093/jxb/...
πŸ”¬ Research: doi.org/10.1093/jxb/...

#PlantScience πŸ§ͺ

23.07.2025 10:34 β€” πŸ‘ 12    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
Image Text: Call for 2026 Plantae Fellows. Application Deadline: August 31, 2025. plantae.org/2025fellowsapp. Featuring the Plantae and Plantae Fellows logo on a Plantae-branded background.

Image Text: Call for 2026 Plantae Fellows. Application Deadline: August 31, 2025. plantae.org/2025fellowsapp. Featuring the Plantae and Plantae Fellows logo on a Plantae-branded background.

πŸ“£ Are you a creative and articulate plant scientist looking to connect with other like-minded folks? Application is now open for the 2025-2026 Plantae Fellows program!🌱

πŸ‘‰ Learn more and apply by August 31! buff.ly/JqoDSHq

#plantscience

22.07.2025 14:10 β€” πŸ‘ 20    πŸ” 20    πŸ’¬ 1    πŸ“Œ 6
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Cell Free Protein Synthesis (E. coli) Ginkgo’s cell free protein synthesis (CFPS) kit is anΒ E. coli transcription/translation system optimized to produce proteins from a T7 RNA Polymerase promoter.Β  Reactions consist of a bacterial cell l...

Ginkgo has launched an E.coli-based Cell Free Protein Synthesis reagent!

reagents.ginkgo.bio/products/cel...

22.07.2025 16:02 β€” πŸ‘ 9    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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The project focuses on utilizing meta-omics approaches to explore the connection between the exudome of Arabidopsis thaliana, branched broomrape, and rhizosphere microbiota.

21.07.2025 12:28 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
US2B – UnitΓ© en Sciences Biologiques et Biotechnologies

We're offering a Master's Level 2 research opportunity in the picturesque city of Nantes, western France, for a duration of six months starting in January. Feel free to apply or share this opportunity!. us2b.univ-nantes.fr
Link to the offer : uncloud.univ-nantes.fr/index.php/s/...

21.07.2025 12:26 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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The role of cytokinin receptors in Arabidopsis thaliana seed development and how they affect the metabolomic profile - Planta Main conclusion Based on expression, functional, and metabolomic analyses in the seeds of the single-receptor mutants, each receptor has a specific function during seed development. Their redundant ro...

The role of cytokinin receptors in Arabidopsis thaliana seed development and how they affect the metabolomic profile
link.springer.com/article/10.1...

21.07.2025 12:15 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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🀯🀯 and I ❀️ it! #2025ISMPMI @soreklab.bsky.social πŸ‘πŸ»πŸ‘πŸ»

13.07.2025 13:47 β€” πŸ‘ 19    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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New Article: "A receptor–kinase cascade confers cold-induced root growth inhibition in Arabidopsis" rdcu.be/etNmI

A module involving KOIN and CRPK1 integrates membrane trafficking and kinase signalling to mediate cold-induced root growth inhibition.

27.06.2025 18:12 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Cover of the June issue of Nature Plants. The description is the following: "Accelerando for the DNA shuffle - Whereas flowers of wild-type tobacco plants have five petals, defects in DNA repair, caused by the endosymbiotic integration of a plastid DNA fragment into the plant’s nuclear genome, produce flowers with variable petal numbers (three, four or five). Such gene transfer from plastids to the nucleus occurs more frequently when double-strand break repair pathways are inactive.".

Cover of the June issue of Nature Plants. The description is the following: "Accelerando for the DNA shuffle - Whereas flowers of wild-type tobacco plants have five petals, defects in DNA repair, caused by the endosymbiotic integration of a plastid DNA fragment into the plant’s nuclear genome, produce flowers with variable petal numbers (three, four or five). Such gene transfer from plastids to the nucleus occurs more frequently when double-strand break repair pathways are inactive.".

The June issue is now fully online:
www.nature.com/nplants/volu...

23.06.2025 15:46 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1
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1/27 We have a new paper out! Turns out that snowflake yeast have been hiding a secret from us - they've evolved a (very!) crude circulatory system. Not with blood vessels or a heart, but through spontaneous fluid flows powered by their metabolism. πŸ§ͺπŸ”¬

www.science.org/doi/full/10....

24.06.2025 16:52 β€” πŸ‘ 355    πŸ” 146    πŸ’¬ 14    πŸ“Œ 25

Congrats

22.06.2025 15:32 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Pseudomonas virulence factor SaxA detoxifies plant glucosinolate hydrolysis products, rescuing a commensal that suppresses virulence gene expression Plants produce a plethora of specialised metabolites that often play important roles in their defence against pathogenic microbes or herbivorous insects. Exposure of leaf colonising microbes to these ...

www.biorxiv.org/content/10.1...

12.06.2025 09:31 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Towards establishing functional nitrogenase activities within plants Biological nitrogen fixation, catalyzed by nitrogenase, can convert atmospheric Nβ‚‚ into NH₃ for plant growth. Legumes form symbioses with nitrogen-fixing bacteria, but non-legumes rely on excessive nitrogen fertilizers. Efforts to engineer nitrogenase in non-legumes face major challenges, including oxygen sensitivity, metal cluster assembly complexity, and high energy demands. Nonetheless, advances in synthetic biology, and artificial intelligence (AI)-driven design – shown by partial nitrogenase reconstitution in Escherichia coli and yeast – offer promising solutions. Engineering nitrogenase in yeast mitochondria under low-oxygen conditions also helps circumvent oxygen constraints. Fully overcoming energy costs and feedback loops responsive to nitrogen levels could yield nitrogen-fixing crops, transforming sustainable agriculture and ensuring global food security. Such breakthroughs would reduce fertilizer dependence, cut pollution, and stabilize yields in diverse farming systems.

An inspiring long-term goal that is still worth pursuing -> Towards establishing functional nitrogenase activities within plants

02.06.2025 19:18 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Figure 2. Distribution of detectable glucosinolate accumulation across the Brassicaceae a. Histogram showing the distribution of the number of species found to accumulate detectable levels of each glucosinolates across 339 species [11]. Specific metabolites found in a large number of species and highlighted in panel C. are labeled. b. Upset plot showing how the metabolites distribute among the major supertribes of the Brassicaceae family [11,12]. c. Distribution of widely distributed glucosinolates in species with both phylogenetic and glucosinolate information [11,12]. Colors highlight different supertribes and the outer rings represent accumulation of specific metabolites in the species. From inner ring to outer ring the metabolites are But = but-3-enyl, 20HB= 2-hydroxy-but-3-enyl, 4MSO-4-methylsulfinylbutyl, 4MT 4-methylthiobutyl, 3MSO-3-methylsulfinylpropyl, 3MT= 3-methylthiopropyl, Allyl-2-Propenyl/sinigrin.

Figure 2. Distribution of detectable glucosinolate accumulation across the Brassicaceae a. Histogram showing the distribution of the number of species found to accumulate detectable levels of each glucosinolates across 339 species [11]. Specific metabolites found in a large number of species and highlighted in panel C. are labeled. b. Upset plot showing how the metabolites distribute among the major supertribes of the Brassicaceae family [11,12]. c. Distribution of widely distributed glucosinolates in species with both phylogenetic and glucosinolate information [11,12]. Colors highlight different supertribes and the outer rings represent accumulation of specific metabolites in the species. From inner ring to outer ring the metabolites are But = but-3-enyl, 20HB= 2-hydroxy-but-3-enyl, 4MSO-4-methylsulfinylbutyl, 4MT 4-methylthiobutyl, 3MSO-3-methylsulfinylpropyl, 3MT= 3-methylthiopropyl, Allyl-2-Propenyl/sinigrin.

One cool consequence: This model of more rapid gene duplication & loss creates wild phylogenetic patterns, where metabolites are found throughout major lineages of a family but exhibit huge presence/absence within a lineage. Reconstructing evo history of this pathway by parsimony would be misleading

28.03.2025 17:58 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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SpeSpeNet: an interactive and user-friendly tool to create and explore microbial correlation networks Abstract. Correlation networks are commonly used to explore microbiome data. In these networks, nodes are taxa and edges represent correlations between the

SpeSpeNet: an interactive and user-friendly tool to create and explore microbial correlation networks

#ISMECommun from @binfutrecht.bsky.social
@jwubs.bsky.social

academic.oup.com/ismecommun/a...

26.02.2025 18:50 β€” πŸ‘ 15    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

RESEARCH: "Flowers meet Newton: testing the role of gravitational pull in resupination of orchid flowers" - JoΓ£o C F Cardoso et al, doi.org/10.1093/jxb/...

#plantscience πŸ§ͺ

11.02.2025 14:57 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Reducing methane emissions by developing low-fumarate high-ethanol eco-friendly rice Root exudates regulate methane emissions in rice paddies, with fumarate and ethanol discovered as two main compounds regulating methane emissions. Employing this finding for breeding resulted in novel...

70% reduction of methane emissions from paddy rice by blocking root exudation of fumarate. Field-tested over 3 seasons with yield-stable results. Maintains 8.96t/ha yields.
www.cell.com/molecular-pl...

08.02.2025 15:15 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Nice work, quick question, that heatmap of m/z features (probably made using metaboanalyst) is it normalized by rows or columns ? Thanks so much 😊

24.01.2025 10:42 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Evolution of interorganismal strigolactone biosynthesis in seed plants Strigolactones (SLs) are methylbutenolide molecules derived from Ξ²-carotene through an intermediate carlactonoic acid (CLA). Canonical SLs act as signals to microbes and plants, whereas noncanonical S...

One more player in strigolactone biosynthesis just out @science.org πŸ”½

www.science.org/doi/10.1126/...

16.01.2025 19:24 β€” πŸ‘ 14    πŸ” 11    πŸ’¬ 0    πŸ“Œ 0

Last chance to apply for an Associate Professor position in our Plant Biology Department at SLU. Deadline Jan 20th. Come join us in Uppsala, Sweden!

08.01.2025 08:16 β€” πŸ‘ 17    πŸ” 31    πŸ’¬ 1    πŸ“Œ 1
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Soil microbiomes show consistent and predictable responses to extreme events - Nature Soils from 30 grasslands across Europe were subjected to 4 contrasting extreme climatic events under drought, flood, freezing and heat conditions, with the results suggesting that soil microbiomes fro...

New Nature study: Soil microbiomes show consistent and predictable responses to extreme events @frantecol.bsky.social

www.nature.com/articles/s41...

30.11.2024 08:18 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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PCP Special Issue on Parasitic Plants - International Parasitic Plant Society Plant & Cell Physiology (@PCP_EIC), the official journal of the Japanese Society of Plant Physiologists, will publish a special issue on parasitic plants in 2025. Research paper submissions are due by...

There's a special issue of Plant & Cell Physiology (@plantcellphysiol.bsky.social) on #ParasiticPlants coming up πŸ‘‡

www.parasiticplants.org/2024/12/pcp-...

#PlantScience

04.12.2024 09:36 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1

@choukri is following 20 prominent accounts