Drought induced metabolomics of potato leaves highlight metabolic reprogramming and promising biomarkers for smart irrigation advisories

This study demonstrates that integrating metabolomics-derived biomarkers, such as proline, with satellite-based remote sensing can overcome the limitations of current irrigation advisories in heterogeneous landscapes by providing sensitive, ground-truth indicators of drought stress in potato crops for improved smart irrigation management.

Singh, P. D., Nayak, R., Dittrich, Y. + 3 more2026-03-21✓ Author reviewed 📄 plant biology

A hidden T-DNA-linked inversion-duplication causes a pronounced light-dependent phenotype in Arabidopsis

This study reveals that a T-DNA insertion in *Arabidopsis* unexpectedly caused a large inversion-duplication that increased gene dosage and altered metabolism, leading to a severe light-dependent phenotype that confounded the interpretation of the intended gene disruption and highlighting the critical need for structural validation in T-DNA and genome-editing workflows.

Martinez, M. d. P., de Oliveira, J. A. V. S., Nica, I. + 10 more2026-03-21📄 plant biology

Zinc and iron homeostatic interactions in a mutant lacking nicotianamine vacuolar storage and citrate xylem loading

This study demonstrates that coordinated citrate export and nicotianamine compartmentation are essential for maintaining zinc and iron homeostasis, redox balance, and proper plant development, as their simultaneous disruption in the *frd3 zif1* double mutant leads to severe metal translocation defects, oxidative stress, and impaired growth.

Fanara, S., Scheepers, M., Boulanger, M. + 7 more2026-03-21📄 plant biology

Emergent feed-forward and isohydric responses to soil and atmospheric aridity: Insights from a time-dependent hydraulic model

This study employs a time-dependent mechanistic hydraulic model to demonstrate that emergent feed-forward control and transitions between anisohydric and isohydric behaviors in plants are driven by the dynamic balance between soil water supply limitations and atmospheric demand, revealing that observed stomatal responses to vapor pressure deficit arise from complex, scale-dependent plant-soil-atmosphere feedbacks rather than fixed biological strategies.

Rockwell, F. E.2026-03-20📄 plant biology

Single-cell RNA sequencing uncovers cell-type-specific reprogramming of water-channel and cell-wall genes in PFOA uptake by lettuce root tips

By integrating short- and long-read single-cell RNA sequencing, this study reveals that PFOA uptake in lettuce root tips is driven by a synergistic mechanism involving the up-regulation of aquaporin genes and down-regulation of cell-wall biosynthesis genes in specific cell types, alongside the identification of distinct RNA isoforms that may modulate protein function for pollutant transport.

Shi, Z.-X., Yu, P.-F., Pan, B.-G. + 8 more2026-03-20📄 plant biology

Comparative cross-species transcriptomic analysis identifies new candidates of Pooideae nitrate response

This study employs a comparative cross-species transcriptomic analysis of Arabidopsis thaliana, Brachypodium distachyon, and Hordeum vulgare to identify both conserved nitrate-responsive mechanisms and species-specific regulatory adaptations, providing a pipeline for discovering new targets to improve nitrogen use efficiency in cereals.

Gregoire, M., Pateyron, S., Brunaud, V. + 4 more2026-03-20📄 plant biology

A standard area diagram for potato common scab: comparable performance of image- and object-based validation

This study developed and validated a six-level standard area diagram for assessing potato common scab severity, demonstrating that it significantly improves the accuracy and reliability of visual estimates for both real tubers and digital images, thereby supporting the use of image-based evaluations for training and large-scale surveys.

Cazon, L. I., Paredes, J. A., Quiroga, M. + 1 more2026-03-20📄 plant biology

Investigation of allele-specific expression in citrus hybrids reveals the association between siRNA-mediated de novo methylation and high expression in citrus genomes

This study reveals that in citrus hybrids, siRNA-mediated de novo methylation in the CHH context correlates with high gene expression rather than silencing, suggesting a unique RdDM-mediated transcriptional activation mechanism that is consistent across citrus species and offers a pipeline for developing disease-resistant varieties.

DIOP, K., Bonnin, m., Gibert, A. + 5 more2026-03-19📄 plant biology

Sowing date effects on anther dehiscence, pollen germination on the stigma, and fertility under heat in Japanese rice

This study demonstrates that while basal anther dehiscence length (BDL) is a promising morphological marker for heat tolerance in Japanese rice, its effectiveness as a breeding tool is limited by significant genotype-by-environment interactions, as sowing date and cultivar-specific responses strongly influence anther morphology, pollen germination, and ultimately seed fertility under high-temperature stress.

Kimura, K., Yamaguchi, T., Matsui, T.2026-03-19📄 plant biology