International Society for Plant Low Oxygen Research

Chloroplast differentiation in epidermal cells: an environmental response supporting submerged photosynthesis in Rorippa aquatica While the epidermal cells of terrestrial plants typically lack chloroplasts, this is not the case for aquatic plants, a trait that likely evolved to enhance photosynthetic efficiency underwater. Amp...

nph.onlinelibrary.wiley.com/doi/10.1111/...
#plantscience

Protein degradation in Turnip - an adapted Arg/N-degron pathway. Preprint from Brian Mooney et al. Emmanuelle Graciet lab. www.biorxiv.org/content/10.6...

@ScienceAdvances @science.org

Using MAPPI for real-time whole-plant imaging, we reveal the earliest flooding response — a Ca²⁺ signal, expected, yet now directly visualised and strongest in young leaves...🔬📷

science.org/doi/10.1126/...

1-Aminocyclopropane-1-carboxylic acid oxidase determines the fate of ethylene biosynthesis in a tissue-specific way The production of the plant hormone ethylene is controlled by the biosynthesis enzye ACO in a tissue-specific way, which modulates plant development and st

doi.org/10.1093/plph... #plantscience

MITOGEN‐ACTIVATED PROTEIN KINASE9 fine‐tunes hypoxia signaling by phosphorylating ERF‐VII transcription factors in Arabidopsis In plants, hypoxia sensing is controlled by the stabilization of group VII ethylene response factors (ERF-VIIs), which are post-translationally activated by the mitogen-activated protein kinases (MA...

nph.onlinelibrary.wiley.com/doi/10.1111/... #plantscience

NEW – Climate change and La Niña made ‘devastating’ southern African floods more intense | @ayeshatandon.carbonbrief.org @yaninequiroz.bsky.social

Read here: buff.ly/ksNRUK1

Extreme rainfall over land exacerbated by marine heatwaves - Nature Communications This study shows that oceanic extreme warm events, termed marine heatwaves, exacerbate extreme rainfall over land by 20–30%, increasing flood risks for coastal regions.

New study shows that #marine #HeatWaves exacerbate extreme #rainfall over land by 20–30%, increasing #flood risks for #coastal regions. www.nature.com/articles/s41...

From root death to repatterning.
Today we heard @kevindaniel.bsky.social (from @hartman-plantlab.com) talk about Arabidopsis root shape plasticity under waterlogging stress.

Curious to hear more? You’ll have another chance next week at the ISRR Symposium.

📅 Jan 23 | 🕥 10:15
#PlantScience

Plastid-to-nucleus communication under hypoxia involves group VII ethylene response factors in Arabidopsis thaliana
#plantscience

www.pnas.org/doi/abs/10.1...

Fig. 2.Generation of double LDH mutants. (A) Schematic representation of the two LDH proteins. The genomic region represented by the dotted line is the target of genome editing. (B, C) Selected double LDH mutants generated from the WT (line A) and the las3 mutant (line G) are shown. The genotypes of plants regenerated from transformed calli (T0 generation) are shown with waveform data from sequencing analysis.

🌾⚠️ RESEARCH ARTICLE ⚠️🌾

Analyses of multiple mutants of anaerobic metabolism enzymes demonstrated that defects in ethanol fermentation reduce arsenic levels in rice and identified a new low-arsenic rice - Hayashi et al.

🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪

bsky.app/profile/newp...

Happy New Year! 2026 starts with 2 #plantscience single cell / nuclei papers describing hypoxia responses in Arabidopsis shoot and root tissues 🌱 bsky.app/profile/thep...

New in Science of Plants: "Inferring hypoxia-responsive regulators of cell fate in plant meristems throughsingle-cell transcriptomics" rdcu.be/eXYvw

Hormone biosynthesis and signaling is altered by hypoxia in Arabidopsis thaliana roots.

Discrete and cell-specific hypoxic responses in Arabidopsis roots resolved by single-nuclei transcriptomics

Hill et al.

nph.onlinelibrary.wiley.com/doi/10.1111/...

The convergent genomic dynamism for aquatic adaptation in vascular plants Chen et al. reveal accelerated evolutionary rates and substantial gene family co-expansions, not just losses, as convergent dynamism for aquatic plant adaptation and highlight divergent transcriptiona...

www.cell.com/current-biol...

Heat stress accelerates the development of hypoxia and hypoxia-induced ferroptosis-like cell death in barley root tip under waterlogging The root tip is extremely sensitive to waterlogging, where the hypoxic conditions evoke an extensive cell death within a few hours. Using a pharmacolo…

www.sciencedirect.com/science/arti...

Molecular mechanisms and adaptive strategies for hypoxia tolerance in horticultural crops: beyond model systems - Horticulture Advances Waterlogging-induced hypoxia threatens horticultural crop production by disrupting metabolic processes, nutrient uptake, and plant health. Despite significant progress in model plants, such as Arabido...

Happy to share the new insights of our group.
@ateeqmuhammad.bsky.social @isplore.bsky.social
#plantscience

A cis-regulatory element of the PHYTOCHROME A gene confers the submergence escape capacity for amphibious plants - Nature Communications How did amphibious plants evolve the convergent strategy to escape submergence by fast shoot elongation? Yang et al. reveal the pivotal role of a cis-regulatory element in the PHYA promoter in promoti...

Cool paper #plantscience
www.nature.com/articles/s41...

doi.org/10.1093/plph...

End of the year celebrations with lab 🎄🎊

Functional divergence of the Arg/N-degron pathway between the crop Brassica rapa and the model plant Arabidopsis thaliana https://www.biorxiv.org/content/10.64898/2025.12.04.692320v1

Fig. 1.Heat plot showing the distribution of concentration for identified sugars (A), organic acids (B), and amino acids (C) with more than 2-fold difference between three tissues at the beginning of the incubation period (t=0 h). The scale for each plot ranges from 1/4.5 to 2.5 times the mean of the metabolite concentration in the three tissues. Tissues not measured are marked in grey.

⬇️ SPECIAL ISSUE RESEARCH ⬇️

🍅 Hypoxia in red tomato fruit enhances glycolysis, fermentation, GABA shunt, & accumulation of alanine & glycine, with columella tissue showing the highest metabolic activity & sensitivity to low oxygen stress- Li et al.

🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪

Our latest publication
Physiological and transcriptomic dissection of submergence tolerance in cabbage highlights ERF-VII and N-degron regulation
doi.org/10.1016/j.en...

Future extreme precipitation amplified by intensified mesoscale moisture convergence - Nature Geoscience Extreme daily precipitation events over land could increase by about 41% by 2100 under a high-emissions scenario with an increase in mesoscale moisture convergence, according to an ensemble of climate...

⚒️ Article: Extreme daily precipitation events over land could increase by 41% by 2100 with an increase in mesoscale moisture convergence

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

TgRAV1–TgWRKY74–TgACS13 module fine‐tunes ethylene biosynthesis to modulate waterlogging‐induced root vitality in the gymnosperm Torreya grandis Under waterlogging stress, the TgRAV1–TgWRKY74 regulatory module in Torreya grandis modulates expression of the ethylene biosynthesis gene TgACS13 through multiple mechanisms to control ethylene accu....

doi.org/10.1111/jipb...

Recent advances in the mechanism, transduction and function of oxygen sensing in plants Abstract. Response to reduced ambient oxygen is a key component of plant adaptation in natural and farmed environments and is regulated by oxygen dependent

Recent advances in the mechanism, transduction and function of oxygen sensing in plants
#nendrule #hypoxia #plantscience
academic.oup.com/jxb/advance-...

Radial concentration profiles of O2 across the diffusive boundary layer and root tissues of chickpea (Cicer arietinum) taken at 41 kPa, 30 kPa, 20.6 kPa, 9 kPa and 5 kPa external O2 in the bulk solution.

Chickpea root stele maintains higher metabolism than cortex under all O₂ conditions

de la Cruz Jiménez et al.

nph.onlinelibrary.wiley.com/share/YMVXXS...

Hydrogen sulfide modulates plant hypoxic responses through the persulfidation of Plant Cysteine Oxidases Hydrogen sulfide (H₂S) is a gaseous molecule historically regarded as toxic. Nevertheless, increasing evidence has brought to light important physiological roles in both animals and plants. In plants,...

Happy to share the key part of my PhD! In our latest preprint with Salma Akter, @emilyflashman.bsky.social & @beagiuntoli.bsky.social, we show that H₂S is involved in oxygen sensing in plants!
How? Check it out!🌱✨

Many thanks to all the authors involved!

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

Sign the Petition Reconsider the potential suspension of Plant Biology Courses at UoN

Reconsider the potential suspension of Plant Biology Courses at UoN - Sign the Petition! c.org/p5jy2GXHcX via
@UKChange

HIGD2 Confers Hypoxic Stress Tolerance in Rice by Improving Mitochondrial Function Flooding and oxygen deprivation severely impair mitochondrial energy metabolism in rice, reducing growth and survival under waterlogged conditions. To…

www.sciencedirect.com/science/arti...