@article{19702,
  abstract     = {Moran Birth-death process is a standard stochastic process that is used to model natural selection in spatially structured populations. A newly occurring mutation that invades a population of residents can either fixate on the whole population or it can go extinct due to random drift. The duration of the process depends not only on the total population size n, but also on the spatial structure of the population. In this work, we consider the Moran process with a single type of individuals who invade and colonize an otherwise empty environment. Mathematically, this corresponds to the setting where the residents have zero reproduction rate, thus they never reproduce. The spatial structure is represented by a graph. We present two main contributions. First, in contrast to the Moran process in which residents do reproduce, we show that the colonization time is always at most a polynomial function of the population size n. Namely, we show that colonization always takes at most 1/2n^3 - 1/2n^2 expected steps, and for each n, we identify the slowest graph where it takes exactly that many steps. Moreover, we establish a stronger bound of roughly n^2.5 steps for undirected graphs and an even stronger bound of roughly n^2 steps for so-called regular graphs. Second, we discuss various complications that one faces when attempting to measure fixation times and colonization times in spatially structured populations, and we propose to measure the real duration of the process, rather than counting the steps of the classic Moran process.},
  author       = {Kopfová, Lenka and Tkadlec, Josef},
  issn         = {1553-7358},
  journal      = {PLoS Computational Biology},
  number       = {5},
  pages        = {e1012868},
  publisher    = {Public Library of Science},
  title        = {{Colonization times in Moran process on graphs}},
  doi          = {10.1371/journal.pcbi.1012868},
  volume       = {21},
  year         = {2025},
}

@misc{22770,
  author       = {Cheng, Bingqing and King, Daniel and Kim, Dongjin and Zhong, Peichen},
  publisher    = {Zenodo},
  title        = {{BingqingCheng/cace-lr-fit: V0}},
  doi          = {10.5281/zenodo.16415060},
  year         = {2025},
}

@article{18710,
  abstract     = {We present an ab initio theoretical method to calculate the resonant Auger spectrum in the presence of ultrafast dissociation. The method is demonstrated by deriving the L-VV resonant Auger spectrum mediated by the 2p3/2−1σ* resonance in HCl, where the electronic Auger decay and nuclear dissociation occur on the same time scale. The Auger decay rates are calculated within the one-center approximation and are shown to vary significantly with the inter-nuclear distance. A quantum-mechanical description of dissociation is effectuated by propagating the corresponding Franck–Condon factors. The calculated profiles of Auger spectral lines resemble those of atomic Auger decay but here the characteristic tails extend towards lower electron kinetic energies, which reflect specific features of the potential energy curves. The presented method can describe the resonant Auger spectrum for an arbitrary speed of dissociation and simplifies to known approximations in the limiting cases.},
  author       = {Hrast, Mateja and Ljubotina, Marko and Zitnik, Matjaz},
  issn         = {1463-9076},
  journal      = {Physical Chemistry Chemical Physics},
  number       = {3},
  pages        = {1473--1482},
  publisher    = {Royal Society of Chemistry},
  title        = {{Ab initio Auger spectrum of the ultrafast dissociating 2p3/2−1σ* resonance in HCl}},
  doi          = {10.1039/d4cp03727h},
  volume       = {27},
  year         = {2025},
}

@article{17459,
  abstract     = {Atopic dermatitis (AD) is the most common chronic inflammatory skin disease worldwide. AD is a highly complex disease with different subtypes. Many elements of AD pathophysiology have been described, but if/how they interact with each other or which mechanisms are important in which patients is still unclear. Langerhans cells (LCs) are antigen-presenting cells (APCs) in the epidermis. Depending on the context, they can act either pro- or anti-inflammatory. Many different studies have investigated LCs in the context of AD and found them to be connected to all major mechanisms of AD pathophysiology. As APCs, LCs recruit other immune cells and shape the immune response, especially adaptive immunity via polarization of T cells. As sentinel cells, LCs are primary sensors of the skin microbiome and are important for the decision of immunity versus tolerance. LCs are also involved with the integrity of the skin barrier by influencing tight junctions. Finally, LCs are important cells in the neuro-immune crosstalk in the skin. In this review, we provide an overview about the many different roles of LCs in AD. Understanding LCs might bring us closer to a more complete understanding of this highly complex disease. Potentially, modulating LCs might offer new options for targeted therapies for AD patients.},
  author       = {Pan, Yi and Hochgerner, Mathias and Cichon, Malgorzata Anna and Benezeder, Theresa and Bieber, Thomas and Wolf, Peter},
  issn         = {1468-3083},
  journal      = {Journal of the European Academy of Dermatology and Venereology},
  number       = {2},
  pages        = {278--289},
  publisher    = {Wiley},
  title        = {{Langerhans cells: Central players in the pathophysiology of atopic dermatitis}},
  doi          = {10.1111/jdv.20291},
  volume       = {39},
  year         = {2025},
}

@article{15121,
  abstract     = {We present an auction algorithm using multiplicative instead of constant weight updates to compute a (1-E)-approximate maximum weight matching (MWM) in a bipartite graph with n vertices and m edges in time 0(mE-1), beating the running time of the fastest known approximation algorithm of Duan and Pettie [JACM ’14] that runs in 0(mE-1 log E-1). Our algorithm is very simple and it can be extended to give a dynamic data structure that maintains a (1-E)-approximate maximum weight matching under (1) one-sided vertex deletions (with incident edges) and (2) one-sided vertex insertions (with incident edges sorted by weight) to the other side. The total time time used is 0(mE-1), where m is the sum of the number of initially existing and inserted edges.},
  author       = {Zheng, Da Wei and Henzinger, Monika H},
  issn         = {1436-4646},
  journal      = {Mathematical Programming},
  pages        = {881--894},
  publisher    = {Springer Nature},
  title        = {{Multiplicative auction algorithm for approximate maximum weight bipartite matching}},
  doi          = {10.1007/s10107-024-02066-3},
  volume       = {210},
  year         = {2025},
}

@article{17293,
  abstract     = {Voltage-gated CaV2.1 (P/Q-type) Ca2+ channels play a crucial role in regulating neurotransmitter release, thus contributing to synaptic plasticity and to processes such as learning and memory. Despite their recognized importance in neural function, there is limited information on their potential involvement in neurodegenerative conditions such as Alzheimer's disease (AD). Here, we aimed to explore the impact of AD pathology on the density and nanoscale compartmentalization of CaV2.1 channels in the hippocampus in association with GABAB receptors. Histoblotting experiments showed that the density of CaV2.1 channel was significantly reduced in the hippocampus of APP/PS1 mice in a laminar-dependent manner. CaV2.1 channel was enriched in the active zone of the axon terminals and was present at a very low density over the surface of dendritic tree of the CA1 pyramidal cells, as shown by quantitative SDS-digested freeze-fracture replica labelling (SDS-FRL). In APP/PS1 mice, the density of CaV2.1 channel in the active zone was significantly reduced in the strata radiatum and lacunosum-moleculare, while it remained unaltered in the stratum oriens. The decline in Cav2.1 channel density was found to be associated with a corresponding impairment in the GABAergic synaptic function, as evidenced by electrophysiological experiments carried out in the hippocampus of APP/PS1 mice. Remarkably, double SDS-FRL showed a co-clustering of CaV2.1 channel and GABAB1 receptor in nanodomains (~40–50 nm) in wild type mice, while in APP/PS1 mice this nanoarchitecture was absent. Together, these findings suggest that the AD pathology-induced reduction in CaV2.1 channel density and CaV2.1-GABAB1 de-clustering may play a role in the synaptic transmission alterations shown in the AD hippocampus. Therefore, uncovering these layer-dependent changes in P/Q calcium currents associated with AD pathology can benefit the development of future strategies for AD management.},
  author       = {Martín‐Belmonte, Alejandro and Aguado, Carolina and Alfaro‐Ruiz, Rocío and Kulik, Akos and de la Ossa, Luis and Moreno‐Martínez, Ana Esther and Alberquilla, Samuel and García‐Carracedo, Lucía and Fernández, Miriam and Fajardo‐Serrano, Ana and Aso, Ester and Shigemoto, Ryuichi and Martín, Eduardo D. and Fukazawa, Yugo and Ciruela, Francisco and Luján, Rafael},
  issn         = {1750-3639},
  journal      = {Brain Pathology},
  number       = {2},
  publisher    = {Wiley},
  title        = {{Nanoarchitecture of CaV>2.1 channels and GABAB receptors in the mouse hippocampus: Impact of APP/PS1 pathology}},
  doi          = {10.1111/bpa.13279},
  volume       = {35},
  year         = {2025},
}

@article{17240,
  abstract     = {We prove an upper bound on the energy density of the dilute spin-\(\frac {1}{2}\) Fermi gas capturing the leading correction to the kinetic energy\(8\pi a\rho _\uparrow\rho _\downarrow\) with an error of size smaller than\(a\rho^{2}(a^ 3\rho)^{1/3-\varepsilon}\) for any\(\varepsilon> 0\), where a denotes the scattering length of the interaction. The result is valid for a large class of interactions including interactions with a hard core. A central ingredient in the proof is a rigorous version of a fermionic cluster expansion adapted from the formal expansion of Gaudin et al. (Nucl Phys A 176(2):237–260, 1971. https://doi.org/10.1016/0375-9474(71)90267-3).},
  author       = {Lauritsen, Asbjørn Bækgaard},
  issn         = {1424-0637},
  journal      = {Annales Henri Poincare},
  pages        = {203--243},
  publisher    = {Springer Nature},
  title        = {{Almost optimal upper bound for the ground state energy of a dilute Fermi gas via cluster expansion}},
  doi          = {10.1007/s00023-024-01450-1},
  volume       = {26},
  year         = {2025},
}

@phdthesis{20203,
  abstract     = {Tribocharging, or contact electrification, is the phenomenon in which two initially neutral materials exchange electric charge through contact and subsequent separation. While it is widely observed in everyday life and crucial to numerous natural processes, even the most basic aspects of tribocharging are still a mystery—what are the charge carriers involved and what drives their exchange? This work spans three separate projects that address different aspects of tribocharging. First, we introduce a novel strategy combining Finite Element Method (FEM) simulations with Kelvin Probe Force Microscopy (KPFM) to quantitatively extract surface charge density from surface voltage maps. Second, we present a simple theoretical model that allows for the existence of triboelectric cycles, under the assumption that multiple charge carrying species are involved. Third, we present experimental evidence that identical materials can spontaneously evolve into a triboelectric series, driven by contact history. Modeling this behavior enables the replication of experimental results with simulations, and even experimentally forcing the appearance of a pre-designed series by manipulating contact history. Together, the findings from these projects challenge traditional views on tribocharging, provide new tools for probing it, and open up new avenues of research—all with the hopes of bringing us closer to understanding this puzzling phenomenon.},
  author       = {Sobarzo Ponce, Juan Carlos A},
  isbn         = {978-3-99078-062-6},
  issn         = {2663-337X},
  pages        = {96},
  publisher    = {Institute of Science and Technology Austria},
  title        = {{Tribocharging of identical insulators: Triboelectric series, triboelectric cycles and surface charges}},
  doi          = {10.15479/AT-ISTA-20203},
  year         = {2025},
}

@phdthesis{20607,
  author       = {Mondal, Soumyadip},
  isbn         = {978-3-99078-071-8},
  issn         = {2663-337X},
  pages        = {71},
  publisher    = {Institute of Science and Technology Austria},
  title        = {{Oxygen and sulfur redox: Conversion kinetics and phase equilibria}},
  doi          = {10.15479/AT-ISTA-20607},
  year         = {2025},
}

@article{18892,
  abstract     = {Sick individuals often conceal their disease status to group members, thereby preventing social exclusion or aggression. Here we show by behavioural, chemical, immunological and infection load analyses that sick ant pupae instead actively emit a chemical signal that in itself is sufficient to trigger their own destruction by colony members. In our experiments, this altruistic disease-signalling was performed only by worker but not queen pupae. The lack of signalling by queen pupae did not constitute cheating behaviour, but reflected their superior immune capabilities. Worker pupae suffered from extensive pathogen replication whereas queen pupae were able to restrain their infection. Our data suggest the evolution of a finely-tuned signalling system in which it is not the induction of an individual’s immune response, but rather its failure to overcome the infection, that triggers pupal signalling for sacrifice. This demonstrates a balanced interplay between individual and social immunity that efficiently achieves whole-colony health.},
  author       = {Dawson, Erika and Hönigsberger, Michaela and Kampleitner, Niklas and Grasse, Anna V and Lindorfer, Lukas and Robb, Jennifer and Beikzadeh Abbasi, Farnaz and Strahodinsky, Florian and Leitner, Hanna and Rajendran, Harikrishnan and Schmitt, Thomas and Cremer, Sylvia},
  issn         = {2041-1723},
  journal      = {Nature Communications},
  publisher    = {Springer Nature},
  title        = {{Altruistic disease signalling in ant colonies}},
  doi          = {10.1038/s41467-025-66175-z},
  volume       = {16},
  year         = {2025},
}

@misc{20471,
  abstract     = {Sick individuals often conceal their disease status to group members, thereby preventing social exclusion or aggression. Here we show by behavioural, chemical, immunological and infection load analyses that sick ant pupae instead actively emit a chemical signal that in itself is sufficient to trigger their own destruction by colony members. In our experiments, this altruistic disease-signalling was performed only by worker but not queen pupae. The lack of signalling by queen pupae did not constitute cheating behaviour, but reflected their superior immune capabilities. Worker pupae suffered from extensive pathogen replication whereas queen pupae were able to restrain their infection. Our data suggest the evolution of a finely-tuned signalling system in which it is not the induction of an individual’s immune response, but rather its failure to overcome the infection, that triggers pupal signalling for sacrifice. This demonstrates a balanced interplay between individual and social immunity that efficiently achieves whole-colony health. },
  author       = {Cremer, Sylvia},
  keywords     = {host-parasite interactions, social insects, social immunity, chemical communication, cooperation},
  publisher    = {Institute of Science and Technology Austria},
  title        = {{Altruistic disease signalling in ant colonies}},
  doi          = {10.15479/AT-ISTA-20471},
  year         = {2025},
}

@article{12311,
  abstract     = {In this note, we prove a formula for the cancellation exponent  kv,n between division polynomials  ψn  and  ϕn  associated with a sequence  {nP}n∈N of points on an elliptic curve  E  defined over a discrete valuation field  K. The formula greatly generalizes the previously known special cases and treats also the case of non-standard Kodaira types for non-perfect residue fields.},
  author       = {Naskręcki, Bartosz and Verzobio, Matteo},
  issn         = {1473-7124},
  journal      = {Proceedings of the Royal Society of Edinburgh Section A: Mathematics},
  keywords     = {Elliptic curves, Néron models, division polynomials, height functions, discrete valuation rings},
  number       = {5},
  pages        = {1646--1660},
  publisher    = {Cambridge University Press},
  title        = {{Common valuations of division polynomials}},
  doi          = {10.1017/prm.2024.7},
  volume       = {155},
  year         = {2025},
}

@article{18705,
  abstract     = {Given a non-singular diagonal cubic hypersurface X⊂Pn−1 over Fq(t) with char(Fq)≠3, we show that the number of rational points of height at most |P| is O(|P|3+ε) for n=6 and O(|P|2+ε) for n=4. In fact, if n=4 and char(Fq)>3 we prove that the number of rational points away from any rational line contained in X is bounded by O(|P|3/2+ε). From the result in 6 variables we deduce weak approximation for diagonal cubic hypersurfaces for n≥7 over Fq(t) when char(Fq)>3 and handle Waring's problem for cubes in 7 variables over Fq(t) when char(Fq)≠3. Our results answer a question of Davenport regarding the number of solutions of bounded height to x31+x32+x33=x34+x35+x36 with xi∈Fq[t].},
  author       = {Glas, Jakob and Hochfilzer, Leonhard},
  issn         = {1432-1807},
  journal      = {Mathematische Annalen},
  pages        = {5485--5533},
  publisher    = {Springer Nature},
  title        = {{On a question of Davenport and diagonal cubic forms over Fq(t)}},
  doi          = {10.1007/s00208-024-03035-z},
  volume       = {391},
  year         = {2025},
}

@article{17094,
  abstract     = {Contract-based design is a promising methodology for taming the complexity of developing sophisticated systems. A formal contract distinguishes between assumptions, which are constraints that the designer of a component puts on the environments in which the component can be used safely, and guarantees, which are promises that the designer asks from the team that implements the component. A theory of formal contracts can be formalized as an interface theory, which supports the composition and refinement of both assumptions and guarantees. Although there is a rich landscape of contract-based design methods that address functional and extra-functional properties, we present the first interface theory designed to ensure system-wide security properties. Our framework provides a refinement relation and a composition operation that support both incremental design and independent implementability. We develop our theory for both stateless and stateful interfaces. Additionally, we introduce information-flow contracts where assumptions and guarantees are sets of flow relations. We use these contracts to illustrate how to enrich information-flow interfaces with a semantic view. We illustrate the applicability of our framework with two examples inspired by the automotive domain.},
  author       = {Bartocci, Ezio and Ferrere, Thomas and Henzinger, Thomas A and Nickovic, Dejan and Oliveira da Costa, Ana},
  issn         = {1572-8102},
  journal      = {Formal Methods in System Design},
  pages        = {3--48},
  publisher    = {Springer Nature},
  title        = {{Information-flow interfaces}},
  doi          = {10.1007/s10703-024-00447-0},
  volume       = {66},
  year         = {2025},
}

@phdthesis{20339,
  abstract     = {This thesis investigates the interplay between algebraic and topological methods and combinatorial problems, focusing on approximate graph colourings and mass partitioning. The unifying theme throughout the dissertation is the use of continuous maps and symmetry constraints to extract combinatorial insights.

We first explore approximate graph colouring problems and more generally promise constraint satisfaction problems. Using tools from equivariant topology in combination with the general theory of polymorphism of a promise constraint satisfaction problem, we establish hardness for specific types of approximations.

In the second part, we address mass partitioning problems, where one seeks to divide geometric objects or measures in Euclidean space into parts of equal size using hyperplanes. Employing techniques from topological combinatorics (configuration space/test map setup and Borsuk–Ulam type theorems), we both obtain a new equipartitioning result in the and provide a fast algorithm for computing equipartitioning of point sets in 3D.
},
  author       = {Tasinato, Gianluca},
  issn         = {2663-337X},
  pages        = {106},
  publisher    = {Institute of Science and Technology Austria},
  title        = {{Topological methods in discrete geometry and theoretical computer science: Measure partitioning and constraint satisfaction problems}},
  doi          = {10.15479/AT-ISTA-20339},
  year         = {2025},
}

@article{18157,
  abstract     = {Interest in sliding block puzzles dates back to the 15-puzzle, seemingly invented by Noyes Chapman in 1874 (see [23] for an account of the fascinating history of the puzzle). The game consists of fifteen movable square blocks numbered 
 and arranged within a 
 square box, leaving one empty space (see Figure 1). The task at hand is to start from a given configuration of the numbered blocks and reach the desired target configuration, where the only allowed move is to slide a numbered block into an adjacent empty space. This task seemed to be unpredictably either very easy to accomplish, or completely impossible, and the puzzle turned into a worldwide sensation in the spring of 1880. A particularly challenging instance, known as the 13-15-14 puzzle, consisted of initial and target configurations that differed by a single swap (historically this swap involved the blocks labeled 14 and 15). The craze of this puzzle was such that it consistently made newspaper headlines in 1880, with an article in the New York Times lamenting that it was “threatening our free institutions” [23, p. 9]. Various prizes were offered for anyone who could solve this challenge, beginning with a $25 set of teeth and culminating with Sam Loyd’s famous $1,000 cash prize.},
  author       = {Brunck, Florestan R and Kwan, Matthew Alan},
  issn         = {0343-6993},
  journal      = {Mathematical Intelligencer},
  pages        = {52--65},
  publisher    = {Springer Nature},
  title        = {{Books, Hallways, and social butterflies: A note on sliding block puzzles}},
  doi          = {10.1007/s00283-024-10358-x},
  volume       = {47},
  year         = {2025},
}

@article{21007,
  abstract     = {Currently, the best known tradeoff between approximation ratio and complexity for the Sparsest Cut problem is achieved by the algorithm in [Sherman, FOCS 2009]: it computes O(√(log n)/ε)-approximation using O(nε logO(1) n) maxflows for any ε∈[Θ(1/log n),Θ(1)]. It works by solving the SDP relaxation of [Arora-Rao-Vazirani, STOC 2004] using the Multiplicative Weights Update algorithm (MW) of [Arora-Kale, JACM 2016]. To implement one MW step, Sherman approximately solves a multicommodity flow problem using another application of MW. Nested MW steps are solved via a certain "chaining" algorithm that combines results of multiple calls to the maxflow algorithm. We present an alternative approach that avoids solving the multicommodity flow problem and instead computes "violating paths". This simplifies Sherman's algorithm by removing a need for a nested application of MW, and also allows parallelization: we show how to compute O(√(log n)/ε)-approximation via O(logO(1) n) maxflows using O(nε) processors. We also revisit Sherman's chaining algorithm, and present a simpler version together with a new analysis.},
  author       = {Kolmogorov, Vladimir},
  issn         = {1549-6333},
  journal      = {ACM Transactions on Algorithms},
  number       = {4},
  pages        = {1--22},
  publisher    = {Association for Computing Machinery},
  title        = {{A simpler and parallelizable O(√log n)-approximation algorithm for SPARSEST CUT}},
  doi          = {10.1145/3748723},
  volume       = {21},
  year         = {2025},
}

@article{19026,
  abstract     = {The back-action damping of mechanical motion by electromagnetic radiation is typically overwhelmed by internal loss channels unless demanding experimental ingredients such as superconducting resonators, high-quality optical cavities, or large magnetic fields are employed. Here we demonstrate the first room temperature, cavity-free, all-electric device where back-action damping exceeds internal loss, enabled by a mechanically compliant parallel-plate capacitor with a nanoscale plate separation and an aspect ratio exceeding 1,000. The device has 4 orders of magnitude lower insertion loss than a comparable commercial quartz crystal and achieves a position imprecision rivaling optical interferometers. With the help of a back-action isolation scheme, we observe radiative cooling of mechanical motion by a remote cryogenic load. This work provides a technologically accessible route to high-precision sensing, transduction, and signal processing.},
  author       = {Puglia, Denise and Odessey, Rachel H and Burns, Peter and Luhmann, Niklas and Schmid, Silvan and Higginbotham, Andrew P},
  issn         = {1530-6992},
  journal      = {Nano Letters},
  number       = {7},
  pages        = {2749--2755},
  publisher    = {American Chemical Society},
  title        = {{Room temperature, cavity-free capacitive strong coupling to mechanical motion}},
  doi          = {10.1021/acs.nanolett.4c05796},
  volume       = {25},
  year         = {2025},
}

@article{20656,
  abstract     = {Phytohormone auxin and its directional transport mediate much of the remarkably plastic development of higher plants. Positive feedback between auxin signaling and transport is a prerequisite for (1) self-organizing processes, including vascular tissue formation, and (2) directional growth responses such as gravitropism. Here, we identify a mechanism by which auxin signaling directly targets PIN auxin transporters. Via the cell-surface AUXIN-BINDING PROTEIN1 (ABP1)-TRANSMEMBRANE KINASE 1 (TMK1) receptor module, auxin rapidly induces phosphorylation and thus stabilization of PIN2. Following gravistimulation, initial auxin asymmetry activates autophosphorylation of the TMK1 kinase. This induces TMK1 interaction with and phosphorylation of PIN2, stabilizing PIN2 at the lower root side, thus reinforcing asymmetric auxin flow for root bending. Upstream of TMK1 in this regulation, ABP1 acts redundantly with the root-expressed ABP1-LIKE 3 (ABL3) auxin receptor. Such positive feedback between cell-surface auxin signaling and PIN-mediated polar auxin transport is fundamental for robust root gravitropism and presumably for other self-organizing developmental phenomena.},
  author       = {Rodriguez Solovey, Lesia and Fiedler, Lukas and Zou, Minxia and Giannini, Caterina and Monzer, Aline and Vladimirtsev, Dmitrii and Randuch, Marek and Yu, Yongfan and Gelová, Zuzana and Verstraeten, Inge and Hajny, Jakub and Chen, Meng and Tan, Shutang and Hörmayer, Lukas and Li, Lanxin and Marques-Bueno, Maria Mar and Quddoos, Zainab and Molnar, Gergely and Kulich, Ivan and Jaillais, Yvon and Friml, Jiří},
  issn         = {0092-8674},
  journal      = {Cell},
  number       = {22},
  pages        = {6138--6150.e17},
  publisher    = {Cell Press},
  title        = {{ABP1/ABL3-TMK1 cell-surface auxin signaling targets PIN2-mediated auxin fluxes for root gravitropism}},
  doi          = {10.1016/j.cell.2025.08.026},
  volume       = {188},
  year         = {2025},
}

@unpublished{23174,
  abstract     = {Roots must continuously adapt their growth and have evolved the ability to rapidly respond to diverse environmental and hormonal cues, including the phytohormone auxin. Auxin-induced cellular responses involve membrane depolarization, cytosolic calcium (Ca²⁺) elevation, and extracellular pH increase, but how these processes lead to rapid growth regulation remains unclear. Here, we show that cytosolic Ca²⁺ acts as a universal signal integrating diverse cues for rapid regulation of root growth. Using live imaging, microfluidics, and optogenetics in Arabidopsis, we demonstrate that a swift rise in cytosolic Ca²⁺ is the primary target of auxin signaling affecting growth inhibition. Disruption of Ca²⁺ influx abolishes these responses, whereas light-gated Ca²⁺ influx from the apoplast or endoplasmic reticulum stores inhibits growth. Multiple unrelated stimuli—including auxin, extracellular ATP, RALF peptides, and hydrogen peroxide—converge on this Ca²⁺-dependent mechanism. Cytosolic Ca²⁺ elevation thus represents a necessary and sufficient step for rapid growth inhibition, revealing a unifying principle of root signaling.},
  author       = {Randuch, Marek and Kulich, Ivan and Vladimirtsev, Dmitrii and Huang, Shouguang and Hedrich, Rainer and Friml, Jiří},
  booktitle    = {bioRxiv},
  title        = {{Cytosolic Ca2+ as a universal signal for rapid root growth regulation}},
  doi          = {10.1101/2025.10.17.683082},
  year         = {2025},
}

