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Transcriptional responses of Solanum lycopersicum to three distinct parasites reveal host hubs and networks underlying parasitic successes

Authors: Truch, J., Jaouannet, M., Da Rocha, M., Kulhanek-Fontanille, E., Van Ghelder, C., Rancurel, C., Migliore, O., Pere, A., Jaubert, S., Coustau, C., Galiana, E., Favery, B.

Date: 2026-01-23 · Version: 1
DOI: 10.64898/2026.01.22.701158

Category: Plant Biology

Model Organism: Solanum lycopersicum

AI Summary

The study used transcriptomic profiling to compare tomato (Solanum lycopersicum) responses to three evolutionarily distant pathogens—nematodes, aphids, and oomycetes—during compatible interactions, identifying differentially expressed genes and key host hubs. Integrating public datasets and performing co‑expression and GO enrichment analyses, the authors mapped shared dysregulation clusters and employed Arabidopsis interactome data to place tomato candidates within broader networks, highlighting potential targets for multi‑pathogen resistance.

tomato pathogen compatibility transcriptomics co‑expression network Arabidopsis interactome

Phosphite, an analog of phosphate, counteracts Phosphate Induced Susceptibility of rice to the blast fungus Magnaporthe oryzae

Authors: Mallavarapu, M. D., Martin-Cardoso, H., Bücker, G., Alussi, M., Garcia-Molina, A., San Segundo, B.

Date: 2026-01-23 · Version: 1
DOI: 10.64898/2026.01.22.700763

Category: Plant Biology

Model Organism: Multi-species

AI Summary

Phosphite (Phi) and phosphate (Pi) share the same root uptake system, but Phi acts as a biostimulant that modulates plant growth and disease resistance in a species‑ and Pi‑dependent manner. In Arabidopsis, Phi induces hypersensitive‑like cell death and enhances resistance to Plectosphaerella cucumerina, while in rice it counteracts Pi‑induced susceptibility to Magnaporthe oryzae and Fusarium fujikuroi, accompanied by extensive transcriptional reprogramming.

phosphite (Phi) phosphate (Pi) plant immunity pathogen resistance transcriptomic reprogramming

Decoding stage-specific symbiotic programs in the Rhizophagus irregularis-tomato interaction using single-nucleus transcriptomics

Authors: Stuer, N., Leroy, T., Eekhout, T., De Keyser, A., Staut, J., De Rybel, B., Vandepoele, K., Van Damme, P., Van Dingenen, J., Goormachtig, S.

Date: 2026-01-23 · Version: 1
DOI: 10.64898/2026.01.22.701092

Category: Plant Biology

Model Organism: Solanum lycopersicum

AI Summary

The study generated the first single‑nucleus RNA‑sequencing dataset of tomato (Solanum lycopersicum) roots colonized by the arbuscular mycorrhizal fungus Rhizophagus irregularis, revealing distinct transcriptional programs in epidermal and cortical cells across stages of arbuscule development. Using unsupervised subclustering and a Motif‑Informed Network Inference (MINI‑EX) approach, the authors identified candidate transcription factors that may coordinate cell‑cycle reactivation and nutrient integration during symbiosis, offering a resource for future functional genetics.

arbuscular mycorrhizal symbiosis single-nucleus RNA sequencing Solanum lycopersicum transcription factor network inference root cortical development

A Savory-based Formulation for Sustainable Management of Early Blight caused by Alternaria solani and Preservation of Tomato Fruit Quality

Authors: Lak, F., Omrani, A., Nikkhah, M. J., Gohari, A. M., Nicolaisen, M., Abuali, M., Ahmadzadeh, M.

Date: 2026-01-22 · Version: 1
DOI: 10.64898/2026.01.20.700539

Category: Plant Biology

Model Organism: Solanum lycopersicum

AI Summary

The study assessed three savory essential oil–based formulations for controlling early blight caused by Alternaria solani in tomato, finding that formulation CC2020 most effectively reduced disease severity in both in vitro and greenhouse trials. CC2020 also helped maintain tomato fruit vitamin C levels and lowered fungal melanin production, indicating dual benefits for disease suppression and fruit quality.

early blight Solanum lycopersicum savory essential oil biocompatible formulation fruit quality

Physics-Informed Neural Network Methods for Predicting Plant Height Development

Authors: Shao, Y., van Eeuwijk, F., Peeters, C., Zumsteg, O., Athanasiadis, I., van Voorn, G.

Date: 2026-01-14 · Version: 1
DOI: 10.64898/2026.01.14.699475

Category: Plant Biology

Model Organism: Triticum aestivum

AI Summary

The study introduces a hybrid modeling framework that integrates a logistic ordinary differential equation with a Long Short-Term Memory neural network to form a Physics-Informed Neural Network (PINN) for predicting wheat plant height. Using only time and temperature as inputs, the PINN outperformed other longitudinal growth models, achieving the lowest average RMSE and reduced variability across multiple random initializations. The results suggest that embedding biological growth constraints within data‑driven models can substantially improve prediction accuracy for plant traits.

Physics-Informed Neural Network logistic ODE Long Short-Term Memory plant height prediction wheat

Features affecting Cas9-Induced Editing Efficiency and Patterns in Tomato: Evidence from a Large CRISPR Dataset

Authors: Cucuy, A., Ben-Tov, D., Melamed-Bessudo, C., Honig, A., Cohen, B. A., Levy, A. A.

Date: 2026-01-07 · Version: 1
DOI: 10.64898/2026.01.06.696182

Category: Plant Biology

Model Organism: Solanum lycopersicum

AI Summary

The study generated a dataset of 420 sgRNAs targeting promoters, exons, and introns of 137 tomato genes in protoplasts, linking editing efficiency to chromatin accessibility, genomic context, and sequence features. Open chromatin sites showed higher editing rates, while transcriptional activity had little effect, and a subset of guides produced near‑complete editing with microhomology‑mediated deletions. Human‑trained prediction models performed poorly, highlighting the need for plant‑specific guide design tools.

CRISPR/Cas9 ATAC-seq chromatin accessibility microhomology‑mediated end joining tomato

Root-Suppressed Phenotype of Tomato Rs Mutant is Seemingly Related to Expression of Root-Meristem-Specific Sulfotransferases

Authors: Kumari, A., Gupta, P., Santisree, P., Pamei, I., Valluri,, S., Sharma, K., Venkateswara Rao, K., Shukla, S., Nama, S., Sreelakshmi, Y., Sharma, R.

Date: 2026-01-03 · Version: 1
DOI: 10.64898/2026.01.03.697460

Category: Plant Biology

Model Organism: Solanum lycopersicum

AI Summary

The study characterizes a radiation‑induced root‑suppressed (Rs) mutant in tomato that displays dwarfism and pleiotropic defects in leaves, flowers, and fruits. Metabolite profiling and rescue with H2S donors implicate disrupted sulfur metabolism, and whole‑genome sequencing identifies promoter mutations in two root‑meristem‑specific sulfotransferase genes as likely contributors to the root phenotype.

root development sulfur metabolism sulfotransferase radiation‑induced mutant tomato

Effects of atmospheric CO2 levels on the susceptibility of maize to diverse pathogens

Authors: Khwanbua, E., Qi, Y., Ssengo, J., Liu, P., Graham, M. A., Whitham, S.

Date: 2026-01-02 · Version: 1
DOI: 10.64898/2025.12.31.697224

Category: Plant Biology

Model Organism: Zea mays

AI Summary

The study examined how elevated atmospheric CO₂ (550 ppm) affects immunity in the C₄ cereal maize (Zea mays L.) by exposing plants grown under ambient and elevated CO₂ to a range of pathogens. Elevated CO₂ increased susceptibility to sugarcane mosaic virus, decreased susceptibility to several bacterial and fungal pathogens, and left susceptibility to others unchanged, with reduced bacterial disease linked to heightened basal immune responses. These findings provide a baseline for future investigations into CO₂‑responsive defense mechanisms in C₄ crops.

elevated CO₂ maize plant immunity pathogen susceptibility C4 crops

A Solanoeclepin A precursor functions as a new rhizosphere signaling molecule recruiting growth-promoting microbes under nitrogen deficiency

Authors: Abedini, D., Guerrieri, A., Jain, R., White, F., Koomen, J., Yang, Y., Wang, K., Kramer, G., Bouwmeester, H., Dong, L.

Date: 2025-12-29 · Version: 1
DOI: 10.64898/2025.12.29.696744

Category: Plant Biology

Model Organism: Solanum lycopersicum

AI Summary

The study shows that nitrogen deficiency markedly elevates the exudation of the triterpenoid Solanoeclepin A (SolA) from tomato roots, a process that requires non‑sterile soil and involves the rhizosphere microbiota. Transient silencing of two candidate biosynthetic genes (CYP749A19 and CYP749A20) reduced SolA levels and impaired recruitment of beneficial Massilia spp., which promote plant growth under nitrogen limitation, indicating that SolA acts as a microbe‑mediated recruitment signal that was co‑opted by cyst nematodes.

Solanoeclepin A nitrogen deficiency rhizosphere microbiome Massilia tomato

In vivo binding by Arabidopsis SPLICING FACTOR 1 shifts 3' splice site choice, regulating circadian rhythms and immunity in plants

Authors: Agrofoglio, Y. C., Iglesias, M. J., de Leone, M. J., Hernando, C. E., Lewinski, M., Torres, S. B., Contino, G., Yanovsky, M. J., Staiger, D., Mateos, J. L.

Date: 2025-12-17 · Version: 1
DOI: 10.64898/2025.12.17.693997

Category: Plant Biology

Model Organism: Arabidopsis thaliana

AI Summary

The study characterizes the plant spliceosomal protein AtSF1 in Arabidopsis thaliana, using iCLIP and RNA‑seq to map its in vivo branch point binding sites and demonstrate that loss of AtSF1 causes widespread 3' splice‑site mis‑selection. Structural comparison reveals a plant‑specific domain architecture, and the identified AtSF1 targets are enriched for circadian and defense genes, linking splicing regulation to timing and immunity.

alternative splicing branch point recognition AtSF1 circadian clock regulation plant immunity
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