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AtMYB93 promoter activity visualized in wild type plants expressing pAtMYB93::GUS (Gibbs et al. 2014) under normal sulfur levels (+S) and S deprivation (−S) in 7-day old roots. Two examples of each treatment are shown. Cells expressing pAtMYB93::GUS are highlighted with arrows. Developing lateral root primordia are highlighted with arrowheads. Scale bars represent 50 μm.

A Potential Role for MYB93 Regulating Sulfur Responses in Arabidopsis and Tomato (Xulyu Cao, Helen B. Wilkinson, Bethany Hutton, et al) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Development and Evaluation of an Early Heading Rice Line From the Indica High‐Yielding Variety NSIC Rc 160 Schematic diagram of the long-day regulatory network controlling heading. Arrows indicate activation, T-bars indicate repression, and dotted lines denote antagonistic interactions. Increased expression in NR160E is indicated by bold arrows and labels.

Development and Evaluation of an Early Heading Rice Line From the Indica High-Yielding Variety NSIC Rc 160 (Kazuhiro Sasaki, Hiroki Saito, Teodora E. Mananghaya, Jonathan M. Niones, Mitsuhiro Obara) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Overview of the Arg/N-degron pathway and its enzymatic components. PLANT CYSTEINE OXIDASE (PCO) are oxygen-dependent enzymes that oxidize the N-terminal Cys (C) residue of proteins (Weits et al. 2014; White et al. 2017). Their substrates can then be arginylated by ATE enzymes, which also conjugate Arg (R) to substrates with N-terminal Asp (D) and Glu (E) (Graciet et al. 2009, 2010). Arginylation is followed by recognition and ubiquitylation mediated by the E3 ubiquitin ligase PROTEOLYSIS 6 (PRT6) and degradation by the proteasome (Garzon et al. 2007). PRT6 also recognizes proteins that start with other positively charged residues such as lysine (not depicted) (Garzon et al. 2007).

Functional Divergence of the Arg/N-Degron Pathway Between the Crop Brassica rapa and the Model Plant Arabidopsis thaliana (Brian C. Mooney, Pablo Garcia, Shreenivas Kumar Singh, Emmanuelle Graciet) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

(a) Diagram depicting the setup of our drought experiment. Photos of Douglas-fir seedlings were taken under well-watered conditions (before the start of the experiment) and under drought-conditions (6 weeks into the experiment). Needles show clear signs of drought stress at the end of the experiment. RNA and carbon isotope samples were taken at each time point. Water was gradually reduced during the course of the experiment, which is depicted by the water drops illustration. Seedlings received half of their usual water for 3 weeks following the initiation of the experiment followed by 3 weeks of receiving no water. (b) Diagram depicting the interactions between genotype, phenotype, environment, and transcriptome with the respective data and analyses paired with each term.

Differences in Phenylpropanoid and Reactive Oxygen Species Genes Drive Plastic and Adaptive Responses to Drought Stress Between Douglas-Fir Varieties and Hybrids (Baesen Kailey, Fitzhugh Amanda, Amanda R. De La Torre) buff.ly/VQ6x1dp #PlantScience @aspbofficial @wileyecology @sebiology

NaOH staining of barley grains. PA-defective seeds were yellow upon treatment.

HvTT8 Regulates Proanthocyanidin Accumulation in the Barley Testa Layer by Transcriptionally Activating the Flavonoid Biosynthesis Pathway (Yuki Nakano, Masaru Nakata, et al) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Developmental gradient in the 5th leaf of four Otachyriinae subtribe species. (A) S1 (leaf base) and S7 (leaf tip) cross section cuts from C4 A. lanata, C2 S. hians, PK R. pilosa, and C3 H. amplexicaulis. (B) Magnification showing 1° vascular bundles from S7. Abbreviations: 1°VB, primary vascular bundle; 2°VB, secondary vascular bundle; IBS, inner bundle sheath cell; M, mesophyll cell; OBS, outer bundle sheath ce

Systems analysis of leaf anatomy and transcriptome using unsupervised machine learning provides insight on photosynthesis development and evolution in non-model grasses (Santiago Prochetto, Georgina Stegmayer, et al) buff.ly/x0nKme2 #PlantScience @aspbofficial @wileyecology @sebiology

Metabolite profiles of F. violacea samples. (A) Relative abundance of natural product biosynthetic pathways. The intensities of metabolites within each biosynthetic pathway were grouped and summed. Metabolites classified into more than one biosynthetic pathway were grouped under their primary pathway classification and labeled as hybrids. (B) Relative abundance of terpenoid superclasses. (C) Relative abundance of amino acid and peptide superclasses. (D) Relative abundance of alkaloid superclasses. For each superclass, the intensities of metabolites within the respective superclass were grouped and summed. Metabolites classified into more than one superclass were grouped under their primary superclass classification and labeled as hybrids. NP, natural product.

Untargeted Metabolomics Reveals Organ-Specific and Extraction-Dependent Metabolite Profiles in Endemic Tajik Species Ferula violacea Korovin (Sylhiya Mavlonazarova, Kenneth Acosta, Rinat Abzalimov, et al) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

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This week’s Signal Edition (3/5/26) is out!🌱

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The ASPB Centennial Compendium is now available — a go-to resource for history, research, and teaching. Every purchase supports the plant science community!

Get yours today: bit.ly/4u9jNPI!

Low-Cost Custom-Built Flow Meters for Plant Hydraulic Conductance: Validation of Accuracy, Precision, and Reproducibility (Jessica Samson-Tshimbalanga, Catherine Périé, Morgane Urli) buff.ly/OgGQPif #PlantScience @aspbofficial @wileyecology @sebiology

Anastasia Apodiakou (she/her) is the First Author of SNRK3.15 is a crucial component of the sulfur deprivation response in Arabidopsis thaliana published 28 December 2025. She is a Project Leader in quality control in LONZA. Education background includes 2023: PhD in Molecular plant physiology , 2019: MSc in Genetics and Biotechnology, 2016: BSc Biotechnology. Research interests include Biotechnology, Epigenetics, Genetics. Personal interests include Gym, yoga, hiking.

Apodiakou’s interest in plant science began with a fascination for how plants adapt to challenging environments. buff.ly/jCN5mQ6

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Proposed working model of candidate pathways and genes potentially associated with seed coat coloration based on comparative transcriptomic associations observed at a single developmental stage (110 DAS). This schematic illustrates transcriptomic associations across the phenylpropanoid-flavonoid pathway from phenylalanine-derived precursors to anthocyanin and proanthocyanidin (PA) accumulation in vacuoles. Genes upregulated in black seed coats are shown in green and those upregulated in yellow seed coats in brown (color intensity reflects log2 fold-change)...

Transcriptomic and Metabolic Insight Into Flavonoid Biosynthesis Underlying Black and Yellow Seed Coat Color Variation in Soybean (Glycine max) (Kahee Moon, Prakash Basnet, Seung Young Choi, et al) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Leaf phenotypes of WT and RsSPL10 overexpression (OE RsLinc214) lines.

Genome-Wide Analysis of the lncRNAs and miRNAs Involved in Flower Development in Radish (LingJun Wu, Xiaobo Luo, Yadong Li, Yueyue Jin, Wanping Zhang) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Mauricio Peñuela Aristizábal (he/his) is the First Author of Unraveling Plant Recombination Patterns: Insights from Genome kmers published 25 November 2025. He is a Postdoctoral Researcher at Bioinformatics Group of Wageningen University and Research. Education background includes: 2012 BSc Biology, 2015 MSc Science-Biology, 2020 Ph.D Science-Biology. Research interests include Bioinformatics, Quantitative genetics, Population genetics, Evolution. Personal interests include Painting, Biking, Hiking, Traveling.

Aristizábal invites both young and old to discover the fascinating world of plants and to see the light that shines through them. buff.ly/T01GzkB

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Maria Clara Faria-Bates is the First Author of Integrative transcriptomic and phosphoproteomic analysis reveals key components of SnRK1 signaling network in rice published 17 November 2025. Faria-Bates is a PhD candidate at the University of Arkansas. Education background includes: Present Ph.D in plant biotechnology at the University of Arkansas 20023 MSc in plant biotechnology at the University of Arkansas; 2019 BSc in Agronomy at the University of Sao Paulo, Brazil. Research interests include Plant signaling, molecular biology, and functional genomics. Personal interests include Reading, swimming, hiking, yoga.

Faria-Bates’s interest in plant science began in my childhood, growing up on a farm in rural Brazil. buff.ly/Kcg6d50

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Color phenotype of three jackfruit cultivars. THA (left), GTM (middle), and YNH (right). Scale bar: 1 cm.

Combined Analysis of Transcriptome and Metabolome Explains the Differences in Pulp Color in Jackfruit (Jianjun Liang, Xiangwei Ma, Chenxin Yi, Hailan Zhou, Zhuangmin Wei, Xiuguan Tang, Weiyan Ye, Hailing Tang, Pengjin Zhu) buff.ly/Cut6j18 #PlantScience @aspbofficial @wileyecology @sebiology

Geoffrey Malcolm Carnie Cobb (he/him) is the First Author of EARLY FLOWERING 3 (ELF3) inhibits hypocotyl phototropism in light-grown Arabidopsis seedlings published 23 September 2025. Education background includes 2024 PhD in Biology at the University of Lausanne; 2019 MBiol at Durham University. Research interests include Plant responses to light, circadian rhythms, PIF proteins. Personal interests include Reading, Fishing, Formula 1.

Cobb feels privileged to have had the opportunity to work with a group of such dedicated and knowledgeable people during his research! buff.ly/Y4otJsF

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Targeting dCas9-SunTag to a Susceptibility Gene Promoter Is Sufficient for CRISPR Interference (Zuh-Jyh Daniel Lin, Gabriela L. Hernandez, et al) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Functional Interaction Between Toc75 POTRA1 Domain and Tic22-III in the Intermembrane Space During Chloroplast Protein Import (Rajneesh Singhal, Danny J. Schnell) buff.ly/DHhHnDl #PlantScience @aspbofficial @wileyecology @sebiology

Mohamad Al Bolbol (he/him) is the First Author of Apple DELLA is degraded under warm temperature conditions in Nicotiana benthamiana leaves through a COP1-dependent mechanism published 19 September 2025. He is a PhD – 2022 – 2025 at University of Montpellier - AGAP Institute.Education background includes: 2022 Masters Plant Environment and Ecological Engineering at the University of Strasbourg. 2021 Masters Plant biology and environment at Lebanese University. 2019 Bachelor’s Degree – Life and Earth Sciences at Lebanese University. Research interests include Plant developmental biology, hormone signaling pathways, and temperature-dependent growth regulation. Personal interests include Running, Swimming, Traveling.

“My curiosity about how plants respond to environmental factors such as temperature, hormones, and developmental cues inspired me to pursue plant science.” buff.ly/ZBL8bRI

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quantification of rosette surface

The Arabidopsis Mutant of the Small Intrinsically Disordered Protein DSS1(V) Exhibits Increased Sensitivity to Drought Stress (Ivana Nikolic, Maja Sabljic, Mira Milisavljevic, Ivan Radin, Gordana Timotijevic) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

High-throughput phenotyping system “Droughtspotter XXL.” The Droughtspotter XXL consists of 240 containers with a rooting volume of 120 L each. Gravimetric weight measurements at 5-min intervals allow for high-resolution monitoring of the transpiration rate. Transpiration metrics are treated as comparative, whole-container traits under a shared microclimate rather than absolute leaf-level conductance estimates. The containers are situated in a foil greenhouse which excludes natural precipitation; however, the walls remain open to maintain temperature and humidity at ambient levels.

Precise Evaluation of Transpiration Patterns in Relation to Grain Yield Under Drought Stress in Faba Bean (Lennart Scheer, Anna Moritz, Benjamin Wittkop, Andreas Stahl, Olaf Sass, Hanna Tietgen, Gregor Welna, Rod Snowdon) buff.ly/LJyov6p #PlantScience @aspbofficial @wileyecology @sebiology

Schematic representation of NGT structure.

Nature's Shield: Exploring Nonglandular Trichomes (NGT) as Key Players in Plant Defense Mechanisms (Muhammad Ahmad, Sen Li, Yuming Dong, et al) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Mutations in Components of the TREX‐2 Complex Result in Misexpression of the Kelch‐Domain F‐Box Protein KFB39 Promoter in Arabidopsis thaliana Arabidopsis thaliana gene At2g44130 encodes a Kelch-like domain F-box protein designated KFB39 and was previously shown to be specifically expressed on exposure to the oxylipin cis-jasmone. In order…

Mutations in Components of the TREX-2 Complex Result in Misexpression of the Kelch-Domain F-Box Protein KFB39 Promoter in Arabidopsis thaliana (Michaela C. Matthes, Smita Kurup, John A. Pickett, Johnathan A. Napier) doi.org/10.1002/pld3... #PlantScience @aspbofficial @wileyecology @sebiology

Cecilia Costigliolo Rojas (She) is the First Author of Apple DELLA is degraded under warm temperature conditions in Nicotiana benthamiana leaves through a COP1-dependent mechanism published 19 September 2025. She is a Posdoctoral position. Proteostasis and Stress in Plant Laboratory. Institute of Molecular and Cellular Biology. CSIC-UPV. Valencia-Spain.Education background includes: 2025 Posdoctoral position. Proteostasis and Stress in Plant Laboratory. Institute of Molecular and Cellular Biology. CSIC-UPV. Valencia-Spain; 2022 Posdoctoral position, Hormonal Signalling and Plasticity Laboratory, Institute of Molecular and Cellular Biology, CSIC-UPV. Valencia-Spain; 2019 Postdoctoral position, Laboratory of Plant Molecular Biology, Leloir Institute Foundation, IBBA-CONICET, Buenos Aires- Argentina; 2019 PhD in Biological Sciences. Faculty of Exact Sciences. University of Buenos Aires; 2013 Bachelor´s degree in Genetics, Faculty of Exact, Chemical and Natural Sciences - National University of Misiones, Misiones-Argentina. Research interests include Abiotic stress, photomorphogenesis, thermomorphogenesis.Personal interests include Painting, Ceramics.

Rojas worked in her university’s Botany Department, which sparked her current dedication to plant research. buff.ly/ZBL8bRI

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Naga Jyothi Udandarao is the First Author of Parasitic-plant parasite rewires flowering pathways to induce stem-derived galls published 20 August 2025. Udandarao is pursuing opportunities to begin PhD studies. Education background includes Masters in Biotechnology at Jawaharlal Nehru Technological University, India.Research interests include Plant morphology, plant physiology. Personal interests include baking, gardening.

Outside the lab, Naga Jyothi enjoys baking and gardening. buff.ly/815chqm

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Carlos Rigon (He/Him) is the First Author of Unraveling the Role of P450 Reductase in Herbicide Metabolic Resistance Mechanism published 14 August 2025. He is a Herbicide Biologist at Corteva Agriscience. Education background includes a Ph.D. in Bioagricultural Sciences – Weed Science Specialization. Research interests include herbicide metabolism, herbicide resistance, plant evolution. Personal interests include running, playing soccer.

Rigon became interested in plant science because of the ongoing challenge of herbicide resistance evolution in weeds. buff.ly/XWjoHrl

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ASPB Recognizes Black History Month. February 2026. Featuring leaf wreath and Black History Month Theme

This #BlackHistoryMonth, ASPB is celebrating the many contributions and achievements of Black plant scientists!🌱

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