Plant biology explores the intricate lives of the green world, from the microscopic machinery inside a leaf to how entire forests adapt to a changing climate. This field investigates everything from how roots drink water to the complex chemical signals plants use to communicate, offering vital insights into food security and environmental resilience.

On Gist.Science, we make these discoveries accessible by processing every new preprint in this category directly from bioRxiv. For each study, we provide both a plain-language overview for curious minds and a detailed technical summary for researchers, ensuring that the latest findings in plant science are clear and actionable. Below are the most recent papers in plant biology, freshly summarized for you to explore.

📄 plant biology

Evolutionary and functional diversification of cork oak NLRs reveals RNL expansion and dual roles in biotic and abiotic stress

This study utilizes genome-wide and transcriptomic analyses to characterize the evolutionary expansion and functional diversification of the NLR gene family in cork oak (*Quercus suber*), revealing that these immune receptors, particularly RNLs, play specialized roles in tissue-specific expression and the integration of biotic and abiotic stress responses.

Goncalves, L. M., Oliveira, M. M., Barros, P. M.2026-04-26
📄 plant biology

A broad-host-range Rhizobium rhizogenes strain enables transient expression across diverse crops and establishes functional assays in faba bean

This study introduces the engineered *Rhizobium rhizogenes* strain AS109 as a versatile tool for efficient transient expression across diverse dicot crops, successfully establishing a rapid functional genomics platform in faba bean for assays such as gene silencing and cross-family disease-resistance gene evaluation.

King, F., Lopez-Agudelo, J. C., Stephens, C., Aung, M. H., Ibrahim, T., Yuen, E. L. H., Chen, A., Eilmann, N. M., Jenkin (…)2026-04-22
📄 plant biology

Daily Heat Stress Induces Accumulation of Non-functional PSII-LHCII and Donor-side Limitation of PSI via Downregulation of the Cyt bf Complex

Daily heat stress in *Arabidopsis thaliana* triggers a protective acclimatory response where the downregulation of the Cyt *b*6*f* complex restricts electron flow to PSI, preventing its over-reduction despite the accumulation of non-functional PSII-LHCII supercomplexes and reduced carbon assimilation.

Laihonen, L., Tomberg, T., Vuorijoki, L., Nikkanen, L., Mulo, P., Rantala, M.2026-04-20
📄 plant biology

Overexpression of PtaHDG11 enhances drought tolerance and suppresses trichome formation in Populus tremula x Populus alba

This study demonstrates that constitutive overexpression of the native poplar gene PtaHDG11 significantly enhances drought tolerance through improved physiological and antioxidant responses while simultaneously suppressing trichome formation, highlighting its potential for developing drought-resilient forest trees.

Fendel, A., Fladung, M., Bruegmann, T.2026-04-20
📄 plant biology

Sustaining smallholder banana production in Banana Bunchy Top Disease endemic landscapes: integrating clean seed, roguing, and farmer training

This paper demonstrates that sustaining smallholder banana production in BBTV-endemic landscapes requires shifting policy focus from mere clean-seed distribution to investing in farmer diagnostic capacity, as accurate symptom detection and subsequent roguing are the critical drivers of disease suppression and economic viability.

Retkute, R., Omondi, A. B., Zandjanakou-Tachin, M., Agoi, U. R., Staver, C., Kumar, P. L., Thomas, J. E., Gilligan, C. A (…)2026-04-17
📄 plant biology

Combined sulfur deficiency and water deficit trigger synergistic redox adjustments through coordinated transcript-protein regulation in pea

This study demonstrates that combined sulfur deficiency and water deficit in pea plants trigger synergistic redox adjustments through coordinated transcript-protein regulation, particularly involving early reactive oxygen species responses and sustained glutathione S-transferase activity, to mitigate stress and enhance crop resilience.

Bonnot, T., Henriet, C., Aime, D., Kreplak, J., Terezol, M., Balliau, T., Blanchard, C., Lamotte, O., Ourry, A., Zivy, M (…)2026-04-16
📄 plant biology

Strigolactone effects on Sorghum bicolor ecophysiology and symbioses

This study investigates the physiological and symbiotic trade-offs in *Sorghum bicolor* by characterizing strigolactone biosynthetic mutants, revealing that while CRISPR-induced deletions in *SbCCD8b* and *LGS1* confer resistance to parasitic plants, they concurrently impair carbon assimilation, root development, and mycorrhizal symbiosis.

McLaughlin, C. M., Takou, M., Masanga, J., Lawrence-Paul, E. H., Abraham, E. J., Perryman, M., Calabritto, A., Cheema, A (…)2026-04-16