#Endodermis
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transitionalform.bsky.social
The paper a lot of our lab (@sannie-zishanfu.bsky.social @sandyheth.bsky.social @anajusagasti.bsky.social) contributed to on the indepedent origins of the endodermis with Tom Beeckman and Xilian Yang is out now in @currentbiology.bsky.social www.sciencedirect.com/science/arti...
Independent origins of endodermis in lycopsids and euphyllophyte roots
The endodermis is a vital barrier tissue in plants, but its origin, evolution, and homologies across land plants remain ambiguous. Here, we implement …
www.sciencedirect.com
September 11, 2026 at 4:22 PM
hazaklab.bsky.social
Excited to host @nikogeldner.bsky.social today for a special seminar @uni-muenster.de! An awesome lecture on signaling specificity in root endodermis 🌱🔬🤩
April 1, 2026 at 1:01 PM
tonnigrubeandersen.bsky.social
Read our new review: The life and legacy of the root endodermis:
A spatiotemporal view of function and development
- a very nice piece by @swatimahiwal.bsky.social
www.sciencedirect.com/science/arti...
www.sciencedirect.com
July 22, 2026 at 12:19 PM
justinwwalley.bsky.social
Excited to share our latest work exploring cortex & endodermis of arabidizzle using single-cell proteomics!
April 10, 2024 at 10:40 PM
plant-sci.bsky.social
🥔🧬In potato roots, the exodermis forms a continuous suberin layer near the tip—earlier than the endodermis. Reducing suberin altered mineral levels & stunted growth

This outer barrier helps control ion balance in a major food crop #plantscience @jxbotany.bsky.social academic.oup.com/jxb/article-...
Exodermal suberin contributes to ion homeostasis and growth in potato
In potato roots, the endodermis and exodermis define anatomical compartments for mineral nutrients. Exodermal suberin accumulates early, and its reduction
academic.oup.com
September 5, 2026 at 12:00 PM
jian-pu.bsky.social
Delighted to share one piece of my postdoc work in preprint: Through forward genetic screening for suberin deposition in root endodermis, we identified SUBER GENE 1 (SBG1) by GWAS as a novel regulator for suberization by interacting with Type One Protein Phosphatase. www.biorxiv.org/content/10.1...
May 11, 2025 at 10:04 AM
jxbotany.bsky.social
🥔 RESEARCH 🥔

In potato roots, the endodermis and exodermis define anatomical compartments for mineral nutrients. Exodermal suberin accumulates early, and its reduction is associated with altered ion homeostasis and reduced growth- Company-Arumí et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪
Graphical Abstract (shortened, full legend in paper): Most angiosperm roots develop two apoplastic barriers: the endodermis and the exodermis. Although the exodermis is widespread among angiosperms, its functional role remains comparatively poorly understood. Here, we studied root apoplastic barrier formation in potato (Solanum tuberosum). Using histochemical staining, we mapped the spatiotemporal deposition of lignin/poly(phenolic) material and suberin in the endodermis and the exodermis. The exodermis develops an outer polar lignin/poly(phenolic) cap and rapidly establishes a continuous suberized layer close to the root tip, whereas endodermal cells form Casparian strips first and suberize later and discontinuously. The early and continuous suberization of the exodermis suggests a potential role in regulating the radial movement of mineral nutrients.
September 3, 2026 at 7:59 PM
annbot.bsky.social
🎉🆕📰🎉: Filling in the gaps: evidence of leaf endodermis and vein sheath in gymnosperms
doi.org/10.1093/aob/...

#PlantScience
Filling in the gaps: evidence of leaf endodermis and vein sheath in gymnosperms
AbstractBackground and Aims. Botanical literature is filled with studies which tried to demonstrate that leaves of many gymnosperms have an endodermis with
doi.org
February 13, 2026 at 6:06 PM
kaisakajala.bsky.social
Our work on MYBs and WRKY regulating suberin in tomato exodermis is now out in @jxbotany.bsky.social!

🍅 doi.org/10.1093/jxb/...

👩‍🔬 @leonardojo.bsky.social @riannekluck.bsky.social @marianasartur.bsky.social Sara Buti, Alex Cantó-Pastor @bradylabs.bsky.social

🌱 #PlantScience
May 1, 2025 at 9:17 AM
somssich.bsky.social
📜 The Endodermis

🧑‍🔬 @tonnigrube.bsky.social, Colleen Drapek

📔 Plant Roots

🔗 www.taylorfrancis.com/books/978100...

#️⃣ #PlantScience #RootBiology #Endodermis #PlantDevelopment
The Endodermis 1 | 7 | v5 | Plant Roots | T
The acquisition of “true roots” by land plants some 360 million years ago provided a way to access nutrients from the surrounding substrate. This also gave
www.taylorfrancis.com
July 11, 2024 at 12:11 PM
tonnigrubeandersen.bsky.social
Moreover, and even more excitingly, Defeng was able to describe that nodules themselves form apoplastic barriers via Casparian strips and that this is crucial for nodule function.
Expression of CS genes in nodules (left) TEM of CS in nodule endodermis (Middle) and ability of nodule endodermis to block PI stain from reaching the inner tissues.
March 21, 2025 at 5:53 AM
tonnigrubeandersen.bsky.social
Time for another paper from our lab!
This time it’s about passage cells. This work originated from a collaboration with @lauraragni.bsky.social and was spearheaded by the super-talented @leoniekraska.bsky.social Below you will find a thread that explains our findings.
www.cell.com/cell-reports...
MYB68 regulates radial endodermal differentiation and suberin patterning
In this study, Kraska et al. identify MYB68 as a novel regulator of endodermal suberization, linked to the formation of distinct identities in the xylem-pole-associated endodermis. The research uncove...
www.cell.com
June 9, 2025 at 7:02 AM
nikogeldner.bsky.social
Endodermis - exodermis, less related than their names suggest…great story from the Brady lab! Congratulations to all involved!
www.nature.com/articles/s41...
Regulation and function of a polarly localized lignin barrier in the exodermis - Nature Plants
In tomato roots, the exodermis forms a genetically distinct polar lignin cap (PLC) barrier from the Casparian strip. SlSCZ and SlEXO1 repress PLC deposition in inner layers. The PLC cannot fully compe...
www.nature.com
December 2, 2024 at 8:10 PM
tonnigrubeandersen.bsky.social
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...
www.biorxiv.org
July 7, 2026 at 4:28 AM
apmahonen.bsky.social
In Arabidopsis, endodermis forms the first barrier during the primary development. When secondary development starts, endodermis is replaced by periderm as barrier. The outermost layer of periderm forms phellem, cork tissue, similar to tree stems (but less cork than in bark of tree trunks). 2/x
July 2, 2025 at 4:24 PM
arthurobuntspecht.bsky.social
Needle anatomy with the endodermis as bottleneck for diffusion vs transpiration driven mass flow makes phloem loading complicated - here we provide suggestions „Towards better understanding of assimilate transfer and phloem loading in conifer trees“ dx.doi.org/10.1093/jxb/er…
January 22, 2026 at 7:31 PM
samwalds.bsky.social
I’m super thrilled to have won a Marie Skłodowska-Curie postdoc fellowship to work with Tonni @tonnigrube.bsky.social at the Max Planck Institute for Plant Breeding Research in Cologne, exploring endodermis and passage cell dynamics with synthetic biology and microscopy. 😉
February 13, 2024 at 9:50 AM
jxbotany.bsky.social
🌲🔬 VIEWPOINT 🔬🌲

High-resolution SIMS imaging can reveal the function of temporary starch stores in the needles of conifers to transfer carbon from assimilating to exporting tissues, under conditions of limited water availability - Vollenweider et al.

🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪
Fig. 1 (shortened, full legend in paper): Transitory starch pools and endodermis filter features in Pinus sylvestris needles. (A) Transitory starch pools along the pre-phloem pathway from the mesophyll to the transfer parenchyma (Tp) (sampling: 10 August 2016, 11.00 h); the blue dots correspond to single or grouped starch grains (st) within chloroplasts. (Relative frequency estimates: outer mesophyll oM: 40%; inner mesophyll iM: 42%; endodermis En: 8.5%, transfer parenchyma: 9.5%.) (B) Obstruction of the apoplastic transport pathway within cell walls of endodermis by lignified inlays (bluish autofluorescence). The lignified inlays are also visible in the thinner periclinal endodermis cell walls cut transversally or in cell walls of xylem (X) and transfer tracheids (Tt)—where bordered pits enable cell-to-cell water transport.
May 27, 2026 at 5:42 PM
tairnews.bsky.social
Endodermis barrier mutants not only are more attractive to bacteria (chemotaxis) but also support colonization and growth 😋 #icar2026
June 26, 2026 at 3:31 AM
bradylabs.bsky.social
Our latest preprint! A deep learning framework that maps suberin, lignin and aerenchyma in both monocots and dicots! We present a collection of 1,695 fluorescent images. One surprise-the model works best when trained on both monocots + dicots! www.biorxiv.org/content/10.6...
RADIX: a deep learning framework that maps root barriers across species and reveals genetic and environmental contributions
Root anatomical barriers, including the suberized and lignified walls of the endodermis and exodermis, and cortical aerenchyma, regulate water and nutrient transport, gas exchange, and rhizosphere int...
www.biorxiv.org
August 13, 2026 at 11:04 PM
rafaelyuste.bsky.social
Our paper reconstructing hydras endodermis published in @currentbiology urldefense.com/v3/__https:/...
October 29, 2025 at 3:16 PM
plantaeofficial.bsky.social
Plant Science Research Weekly -- Identity is Everything: MYB68 regulates endodermal differentiation and suberin patterning (Cell Reports) @tonnigrubeandersen.bsky.social‬ @leoniekraska.bsky.social (Summary by Irene I. Ikiriko)
buff.ly/EeU14pn

#PlantaePSRW
Identity is Everything : MYB68 regulates endodermal differentiation and suberin patterning | Plantae
Root cells are organized into concentric layers that facilitate the movement of water and nutrients. Among these, the endodermis overlays the root vasculature, allowing it to play a major role in…
buff.ly
July 8, 2025 at 4:15 PM
miniature-melody.bsky.social
Nesting Doll Sonya 🪆 ♥️ 🧡 💛 💚 🩵 💙 💜
July 31, 2026 at 7:46 AM
jxbotany.bsky.social
🍚 RESEARCH 🍚

The rice endodermal Casparian strip maintains normal expression of the transporters for Mn uptake at limited Mn concentration and prevents Mn diffusion to the stele at high Mn concentration - Fujii et al.

🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪
Fig. 6.Cellular localization of OsMTP9 and its protein abundance in the roots of oscasp1 mutants and the WT. (A–C, G–I, and M–O) Cellular localization of OsMTP9 in the roots of the WT (A, G, and M) and oscasp1 mutants (B–C, H–I, and N–O) grown at 0.5 µM (A–C), 50 µM (G–I), and 500 µM Mn (M–O). Scale bar=50 µm. (D–F, J–L, and P–R) Enlarged image of endodermis in (A–C, G–I, and M–O). Scale bar=50 µm. (S, T) Quantification of OsMTP9 signal intensity in the exodermis (S) and endodermis (T) of the WT and oscasp1 mutants. The WT and oscasp1 mutants (6 d old) were exposed to different Mn concentrations (0.5, 50, and 500 µM) for 6 h. Immunostaining was performed using the seminal root cross-section (20 mm from the apex). Red color shows the signal from OsMTP9 and blue color that from cell wall autofluorescence. The data are presented as means ±SD (n=60–85). Significant differences were determined by Tukey–Kramer’s test and labeled with different letters (P<0.01).
November 29, 2025 at 10:01 AM
nikogeldner.bsky.social
Many years ago, Feng Zhou, now at the CEMPS in Shanghai, found strikingly increased bacterial colonization of Arabidopsis roots lacking endodermal barriers. Laser ablating the endodermis also led to increased colonization, immediately suggesting a direct effect – something attractive is leaking!
October 3, 2025 at 12:45 PM