It´s #MicroscopyFriday. Single cell transformation of barley stomata subsidiary cell. RACB-RIC171 complex (green), mCherry (red), cell wall autofluorescence (light blue). chlorophyll fluorescence (mighnight blue). Have a nice weekend.
Sabine Brumm
@binebrumm.bsky.social
Plant Scientist; Research and Teaching Assistant in the process of establishing junior research group, Phytopathology Department TUM Freising; interested in plant microbe interactions and protein transport regulation
I think I found the right book for my holiday. Definitely like the cover
Please share! 🌱🤖 Permanent W2 Professorship in crop & plant sciences @ PhenoRob, University of Bonn. Especially encouraged: crop genome engineering, sustainable pest control, or sustainable disease control. Expertise in one area is enough. Apply by Sept. 30, 2026. www.uni-bonn.de/en/universit...
Fusarium oxysporum infection activates ABA signaling to drive root vascular remodeling, creating structural barriers that restrict pathogen spread. Developmentally encoded defense. #PlantImmunity 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...
pnas.org
Our work on the mechanoresponsiveness of actin is out! While plant microtubules have been extensively studied for their role in mechanobiology, actin has very much been ignored. Here we show that actin responds to cellular deformations within minutes and observed it in Marchantia and Arabidopsis!
Plant actin networks are rapid mechano-adaptive scaffolds https://www.biorxiv.org/content/10.64898/2026.07.16.738884v1
#MicroscopyFriday Even fungi have attitude. 🖕🍄😅 Captured during last week's microscopy session: a powdery mildew (Blumeria hordei) haustorium inside a barley leaf cell. Stable fluorescence-expressing barley line, with the colors representing z-slice depth.
It´s #Microscopyfriday. Tobacco expressing the activated barley type I ROP RACB-G15V loses polarity in root hairs and growth isotropically.
A tomato MIK2‐clade receptor is involved in the perception of a Fusarium‐derived elicitor - Maroschek - New Phytologist - Wiley Online Library nph.onlinelibrary.wiley.com/doi/10.1111/...
A tomato <fc>MIK2</fc>‐clade receptor is involved in the perception of a <fi>Fusarium</fi>‐derived elicitor
Fusarium elicitor responsivness and MIK2-clade proteins are conserved across plant families.
nph.onlinelibrary.wiley.com
Next on my reading list www.biorxiv.org/content/10.6...
Powdery mildew fungi block plant vacuolar traffic to suppress immunity
Plant immunity can be activated by membrane-localized pattern recognition receptors or by cytosolic nucleotide-binding leucine-rich repeat (NLR) receptors, while it can be counteracted by pathogen sec...
biorxiv.org
Preprint! How do "friendly" rhizobia build a legume nodule? @albinteulet.bsky.social found that some may carry hidden transcription factors - proteins that mimic DNA-binding folds to enter the plant nucleus and rewrite its developmental program. www.biorxiv.org/content/10.6... (1/6)
Unconventional vesicle transport driven by formin-actin-myosin working system during pollen germination | Science Advances www.science.org/doi/10.1126/...
Unconventional vesicle transport driven by formin-actin-myosin working system during pollen germination
The formin-actin-myosin system generates directional force for massive vesicle tethering and transport during pollen germination.
science.org
Dynamic Patterns of Nuclear Transcription Factor Abundance in Plant Basal Immunity Revealed by Spatial Proteomics of Arabidopsis Nuclei https://www.biorxiv.org/content/10.64898/2026.06.30.735533v1
The 'heart' of the #Mycorrhiza #fungi #symbiosis is the arbuscule where plant and fungus exchange nutrients and carbon. Try the arbuscule growth simulator. Let me know how you adjust parameters to get the most beautiful arbuscules. schornacklabslcu.github.io/Arbuscule-Sim/
🌾 Every grass leaf shares the same repeating short-long cell pattern in its epidermis. Our new #preprint identifies the protein that builds it. 🔬🧬 📄 preprint: www.biorxiv.org/content/10.6... 🧵⬇️ 1/11
A spatiotemporal single-cell atlas reveals coordinated immune, metabolic, and nutrient exchange programs and a coumarin-centered metabolic switch during soybean arbusular mycorrhizal symbiosis https://www.biorxiv.org/content/10.64898/2026.07.07.737096v1
www.nature.com/articles/s41...
Evolutionarily conserved short linear motifs drive actin filament binding - Nature Cell Biology
Paraschiakos, Yuan et al., using a computational pipeline, identify the short linear actin filament-binding motif (SFM) as an evolutionarily conserved actin filament-binding motif present in 103 human...
nature.com
Time for another preprint from the lab: www.biorxiv.org/content/10.6... Led by @yuanyuanzhang.bsky.social and @defengshen.bsky.social. We found some surprising secrets that connect and uncouple root barrier formation with systemic nitrogen signaling in shoots. see the thread below for more details
A tunable receptor separates root barrier formation from nutrient signaling through ligand-perception states
In roots, the endodermis controls nutrient entry by forming a barrier known as the Casparian strip. Yet how barrier-associated processes interface with systemic signaling remains unclear. Here, we sho...
biorxiv.org
Nice display of different barley varieties at the botanical garden in Munich.
#MicroscopyFriday: One of my favourites. Tonoplast marker line of Arabidopsis under attack from Blumeria hordei.
#MicroscopyFriday #MicroscopyOfTheDay Something went really wrong for these barley stomata on the left picture. Love how the little cell next to the lips of the lower stoma was just sqeezed in somehow. The normal ones (on the right) look usually like 🍔s.
Fluazinam wird bei Kartoffeln gegen Kraut-& Knollenfäule eingesetzt. Eine schwere Pilzkrankheit, die den Kartoffelanbau seit Jahrhunderten beeinträchtigt. Um den Einsatz von Pflanzenschutzmitteln dabei wirklich zu reduzieren, braucht es Kartoffelsorten, die weniger anfällig für die Krankheit sind 1/
Ein in Europa breit eingesetztes Pestizid hätte wohl nie zugelassen werden dürfen www.tagesschau.de/investigativ...
✨ Paper spotlight ✨ (🧵 1/4) Opening the black box: in-situ imaging of arbuscular mycorrhizal structures in soil using synchrotron-based micro-CT nph.onlinelibrary.wiley.com/doi/10.1111/... The mycelium of arbuscular mycorrhizal fungi (AMF) delivers nutrients and water to the plant.
✨ Paper spotlight ✨ (🧵 1/7) What determines transfer of carbon from plants to mycorrhizal fungi? nph.onlinelibrary.wiley.com/doi/10.1111/...
What if one organism could copy itself and merge with others, weaving vast living networks? Meet the arbuscular mycorrhizal fungi 🦠 Cambridge researcher Dr Jennifer McGaley from @camplantsci has filmed these fungi in action for the very first time. Find out more 👉 https://bit.ly/4ghAynD
#MicroscopyFriday It's so hot today, I feel like I must be glowing like this Arabidopsis seed 🔥🥵 In reality: DsRed fluorescence as a handy tool to to spot transformed seeds.
🔬🌱 #MicroscopyFriday Confocal image from infected Arabidopsis tissue. We observed these intriguing filamentous structures accumulating during infection (with one of the most famous immune components 😜) Any guesses what they are? 🤔 #PlantScience #CellBiology #PlantImmunity #Proteostasis
🧬 High-resolution structures of the plant small GTPase RACB show how switching between inactive and active states enables RIPb effector binding, providing a physical link between the cell membrane and microtubules required for fungal pathogen entry. doi.org/10.1038/s420...
Nucleotide-dependent switching and RIPb effector recognition of the barley susceptibility factor RACB - Communications Biology
High-resolution structures of the plant small GTPase RACB show how switching between inactive and active states enables RIPb effector binding, providing a physical link between the cell membrane and m...
doi.org
Fascinating story! First global map of mycorrhizal fungi reveals true scale of underground networks across the planet Mycorrhizal fungi form underground networks that sustain plant life and help regulate Earth's climate by drawing carbon into soils. phys.org/news/2026-06...
First global map of mycorrhizal fungi reveals true scale of underground networks across the planet
Mycorrhizal fungi form underground networks that sustain plant life and help regulate Earth's climate by drawing carbon into soils. In a study published in Science, an international team of researcher...
phys.org