@article{13200,
  abstract     = {Recent quantum technologies have established precise quantum control of various microscopic systems using electromagnetic waves. Interfaces based on cryogenic cavity electro-optic systems are particularly promising, due to the direct interaction between microwave and optical fields in the quantum regime. Quantum optical control of superconducting microwave circuits has been precluded so far due to the weak electro-optical coupling as well as quasi-particles induced by the pump laser. Here we report the coherent control of a superconducting microwave cavity using laser pulses in a multimode electro-optical device at millikelvin temperature with near-unity cooperativity. Both the stationary and instantaneous responses of the microwave and optical modes comply with the coherent electro-optical interaction, and reveal only minuscule amount of excess back-action with an unanticipated time delay. Our demonstration enables wide ranges of applications beyond quantum transductions, from squeezing and quantum non-demolition measurements of microwave fields, to entanglement generation and hybrid quantum networks.},
  author       = {Qiu, Liu and Sahu, Rishabh and Hease, William J and Arnold, Georg M and Fink, Johannes M},
  issn         = {2041-1723},
  journal      = {Nature Communications},
  publisher    = {Nature Research},
  title        = {{Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action}},
  doi          = {10.1038/s41467-023-39493-3},
  volume       = {14},
  year         = {2023},
}

@article{12837,
  abstract     = {As developing tissues grow in size and undergo morphogenetic changes, their material properties may be altered. Such changes result from tension dynamics at cell contacts or cellular jamming. Yet, in many cases, the cellular mechanisms controlling the physical state of growing tissues are unclear. We found that at early developmental stages, the epithelium in the developing mouse spinal cord maintains both high junctional tension and high fluidity. This is achieved via a mechanism in which interkinetic nuclear movements generate cell area dynamics that drive extensive cell rearrangements. Over time, the cell proliferation rate declines, effectively solidifying the tissue. Thus, unlike well-studied jamming transitions, the solidification uncovered here resembles a glass transition that depends on the dynamical stresses generated by proliferation and differentiation. Our finding that the fluidity of developing epithelia is linked to interkinetic nuclear movements and the dynamics of growth is likely to be relevant to multiple developing tissues.},
  author       = {Bocanegra, Laura and Singh, Amrita and Hannezo, Edouard B and Zagórski, Marcin P and Kicheva, Anna},
  issn         = {1745-2481},
  journal      = {Nature Physics},
  pages        = {1050--1058},
  publisher    = {Springer Nature},
  title        = {{Cell cycle dynamics control fluidity of the developing mouse neuroepithelium}},
  doi          = {10.1038/s41567-023-01977-w},
  volume       = {19},
  year         = {2023},
}

@article{10766,
  abstract     = {Tension of the actomyosin cell cortex plays a key role in determining cell–cell contact growth and size. The level of cortical tension outside of the cell–cell contact, when pulling at the contact edge, scales with the total size to which a cell–cell contact can grow [J.-L. Maître et al., Science 338, 253–256 (2012)]. Here, we show in zebrafish primary germ-layer progenitor cells that this monotonic relationship only applies to a narrow range of cortical tension increase and that above a critical threshold, contact size inversely scales with cortical tension. This switch from cortical tension increasing to decreasing progenitor cell–cell contact size is caused by cortical tension promoting E-cadherin anchoring to the actomyosin cytoskeleton, thereby increasing clustering and stability of E-cadherin at the contact. After tension-mediated E-cadherin stabilization at the contact exceeds a critical threshold level, the rate by which the contact expands in response to pulling forces from the cortex sharply drops, leading to smaller contacts at physiologically relevant timescales of contact formation. Thus, the activity of cortical tension in expanding cell–cell contact size is limited by tension-stabilizing E-cadherin–actin complexes at the contact.},
  author       = {Slovakova, Jana and Sikora, Mateusz K and Arslan, Feyza N and Caballero Mancebo, Silvia and Krens, Gabriel and Kaufmann, Walter and Merrin, Jack and Heisenberg, Carl-Philipp J},
  issn         = {10916490},
  journal      = {Proceedings of the National Academy of Sciences of the United States of America},
  number       = {8},
  publisher    = {Proceedings of the National Academy of Sciences},
  title        = {{Tension-dependent stabilization of E-cadherin limits cell-cell contact expansion in zebrafish germ-layer progenitor cells}},
  doi          = {10.1073/pnas.2122030119},
  volume       = {119},
  year         = {2022},
}

@article{8373,
  abstract     = {It is well known that special Kubo-Ando operator means admit divergence center interpretations, moreover, they are also mean squared error estimators for certain metrics on positive definite operators. In this paper we give a divergence center interpretation for every symmetric Kubo-Ando mean. This characterization of the symmetric means naturally leads to a definition of weighted and multivariate versions of a large class of symmetric Kubo-Ando means. We study elementary properties of these weighted multivariate means, and note in particular that in the special case of the geometric mean we recover the weighted A#H-mean introduced by Kim, Lawson, and Lim.},
  author       = {Pitrik, József and Virosztek, Daniel},
  issn         = {0024-3795},
  journal      = {Linear Algebra and its Applications},
  keywords     = {Kubo-Ando mean, weighted multivariate mean, barycenter},
  pages        = {203--217},
  publisher    = {Elsevier},
  title        = {{A divergence center interpretation of general symmetric Kubo-Ando means, and related weighted multivariate operator means}},
  doi          = {10.1016/j.laa.2020.09.007},
  volume       = {609},
  year         = {2021},
}

@article{8582,
  abstract     = {Cell and tissue polarization is fundamental for plant growth and morphogenesis. The polar, cellular localization of Arabidopsis PIN‐FORMED (PIN) proteins is crucial for their function in directional auxin transport. The clustering of PIN polar cargoes within the plasma membrane has been proposed to be important for the maintenance of their polar distribution. However, the more detailed features of PIN clusters and the cellular requirements of cargo clustering remain unclear.
Here, we characterized PIN clusters in detail by means of multiple advanced microscopy and quantification methods, such as 3D quantitative imaging or freeze‐fracture replica labeling. The size and aggregation types of PIN clusters were determined by electron microscopy at the nanometer level at different polar domains and at different developmental stages, revealing a strong preference for clustering at the polar domains.
Pharmacological and genetic studies revealed that PIN clusters depend on phosphoinositol pathways, cytoskeletal structures and specific cell‐wall components as well as connections between the cell wall and the plasma membrane.
This study identifies the role of different cellular processes and structures in polar cargo clustering and provides initial mechanistic insight into the maintenance of polarity in plants and other systems.},
  author       = {Li, Hongjiang and von Wangenheim, Daniel and Zhang, Xixi and Tan, Shutang and Darwish-Miranda, Nasser and Naramoto, Satoshi and Wabnik, Krzysztof T and de Rycke, Riet and Kaufmann, Walter and Gütl, Daniel J and Tejos, Ricardo and Grones, Peter and Ke, Meiyu and Chen, Xu and Dettmer, Jan and Friml, Jiří},
  issn         = {14698137},
  journal      = {New Phytologist},
  number       = {1},
  pages        = {351--369},
  publisher    = {Wiley},
  title        = {{Cellular requirements for PIN polar cargo clustering in Arabidopsis thaliana}},
  doi          = {10.1111/nph.16887},
  volume       = {229},
  year         = {2021},
}

@unpublished{10077,
  abstract     = {Although much is known about how single neurons in the hippocampus represent an animal’s position, how cell-cell interactions contribute to spatial coding remains poorly understood. Using a novel statistical estimator and theoretical modeling, both developed in the framework of maximum entropy models, we reveal highly structured cell-to-cell interactions whose statistics depend on familiar vs. novel environment. In both conditions the circuit interactions optimize the encoding of spatial information, but for regimes that differ in the signal-to-noise ratio of their spatial inputs. Moreover, the topology of the interactions facilitates linear decodability, making the information easy to read out by downstream circuits. These findings suggest that the efficient coding hypothesis is not applicable only to individual neuron properties in the sensory periphery, but also to neural interactions in the central brain.},
  author       = {Nardin, Michele and Csicsvari, Jozsef L and Tkačik, Gašper and Savin, Cristina},
  booktitle    = {bioRxiv},
  publisher    = {Cold Spring Harbor Laboratory},
  title        = {{The structure of hippocampal CA1 interactions optimizes spatial coding across experience}},
  doi          = {10.1101/2021.09.28.460602},
  year         = {2021},
}

@inbook{10267,
  abstract     = {Tropisms are among the most important growth responses for plant adaptation to the surrounding environment. One of the most common tropisms is root gravitropism. Root gravitropism enables the plant to anchor securely to the soil enabling the absorption of water and nutrients. Most of the knowledge related to the plant gravitropism has been acquired from the flowering plants, due to limited research in non-seed plants. Limited research on non-seed plants is due in large part to the lack of standard research methods. Here, we describe the experimental methods to evaluate gravitropism in representative non-seed plant species, including the non-vascular plant moss Physcomitrium patens, the early diverging extant vascular plant lycophyte Selaginella moellendorffii and fern Ceratopteris richardii. In addition, we introduce the methods used for statistical analysis of the root gravitropism in non-seed plant species.},
  author       = {Zhang, Yuzhou and Li, Lanxin and Friml, Jiří},
  booktitle    = {Plant Gravitropism},
  editor       = {Blancaflor, Elison B},
  isbn         = {978-1-0716-1676-5},
  pages        = {43--51},
  publisher    = {Springer Nature},
  title        = {{Evaluation of gravitropism in non-seed plants}},
  doi          = {10.1007/978-1-0716-1677-2_2},
  volume       = {2368},
  year         = {2021},
}

@article{7805,
  abstract     = {Plants as non-mobile organisms constantly integrate varying environmental signals to flexibly adapt their growth and development. Local fluctuations in water and nutrient availability, sudden changes in temperature or other abiotic and biotic stresses can trigger changes in the growth of plant organs. Multiple mutually interconnected hormonal signaling cascades act as essential endogenous translators of these exogenous signals in the adaptive responses of plants. Although the molecular backbones of hormone transduction pathways have been identified, the mechanisms underlying their interactions are largely unknown. Here, using genome wide transcriptome profiling we identify an auxin and cytokinin cross-talk component; SYNERGISTIC ON AUXIN AND CYTOKININ 1 (SYAC1), whose expression in roots is strictly dependent on both of these hormonal pathways. We show that SYAC1 is a regulator of secretory pathway, whose enhanced activity interferes with deposition of cell wall components and can fine-tune organ growth and sensitivity to soil pathogens.},
  author       = {Hurny, Andrej and Cuesta, Candela and Cavallari, Nicola and Ötvös, Krisztina and Duclercq, Jerome and Dokládal, Ladislav and Montesinos López, Juan C and Gallemi, Marçal and Semeradova, Hana and Rauter, Thomas and Stenzel, Irene and Persiau, Geert and Benade, Freia and Bhalearo, Rishikesh and Sýkorová, Eva and Gorzsás, András and Sechet, Julien and Mouille, Gregory and Heilmann, Ingo and De Jaeger, Geert and Ludwig-Müller, Jutta and Benková, Eva},
  issn         = {20411723},
  journal      = {Nature Communications},
  publisher    = {Springer Nature},
  title        = {{Synergistic on Auxin and Cytokinin 1 positively regulates growth and attenuates soil pathogen resistance}},
  doi          = {10.1038/s41467-020-15895-5},
  volume       = {11},
  year         = {2020},
}

@article{7875,
  abstract     = {Cells navigating through complex tissues face a fundamental challenge: while multiple protrusions explore different paths, the cell needs to avoid entanglement. How a cell surveys and then corrects its own shape is poorly understood. Here, we demonstrate that spatially distinct microtubule dynamics regulate amoeboid cell migration by locally promoting the retraction of protrusions. In migrating dendritic cells, local microtubule depolymerization within protrusions remote from the microtubule organizing center triggers actomyosin contractility controlled by RhoA and its exchange factor Lfc. Depletion of Lfc leads to aberrant myosin localization, thereby causing two effects that rate-limit locomotion: (1) impaired cell edge coordination during path finding and (2) defective adhesion resolution. Compromised shape control is particularly hindering in geometrically complex microenvironments, where it leads to entanglement and ultimately fragmentation of the cell body. We thus demonstrate that microtubules can act as a proprioceptive device: they sense cell shape and control actomyosin retraction to sustain cellular coherence.},
  author       = {Kopf, Aglaja and Renkawitz, Jörg and Hauschild, Robert and Girkontaite, Irute and Tedford, Kerry and Merrin, Jack and Thorn-Seshold, Oliver and Trauner, Dirk and Häcker, Hans and Fischer, Klaus Dieter and Kiermaier, Eva and Sixt, Michael K},
  issn         = {1540-8140},
  journal      = {The Journal of Cell Biology},
  number       = {6},
  publisher    = {Rockefeller University Press},
  title        = {{Microtubules control cellular shape and coherence in amoeboid migrating cells}},
  doi          = {10.1083/jcb.201907154},
  volume       = {219},
  year         = {2020},
}

@article{8325,
  abstract     = {Let 𝐹:ℤ2→ℤ be the pointwise minimum of several linear functions. The theory of smoothing allows us to prove that under certain conditions there exists the pointwise minimal function among all integer-valued superharmonic functions coinciding with F “at infinity”. We develop such a theory to prove existence of so-called solitons (or strings) in a sandpile model, studied by S. Caracciolo, G. Paoletti, and A. Sportiello. Thus we made a step towards understanding the phenomena of the identity in the sandpile group for planar domains where solitons appear according to experiments. We prove that sandpile states, defined using our smoothing procedure, move changeless when we apply the wave operator (that is why we call them solitons), and can interact, forming triads and nodes. },
  author       = {Kalinin, Nikita and Shkolnikov, Mikhail},
  issn         = {14320916},
  journal      = {Communications in Mathematical Physics},
  number       = {9},
  pages        = {1649--1675},
  publisher    = {Springer Nature},
  title        = {{Sandpile solitons via smoothing of superharmonic functions}},
  doi          = {10.1007/s00220-020-03828-8},
  volume       = {378},
  year         = {2020},
}

@article{8336,
  abstract     = {Plant hormone cytokinins are perceived by a subfamily of sensor histidine kinases (HKs), which via a two-component phosphorelay cascade activate transcriptional responses in the nucleus. Subcellular localization of the receptors proposed the endoplasmic reticulum (ER) membrane as a principal cytokinin perception site, while study of cytokinin transport pointed to the plasma membrane (PM)-mediated cytokinin signalling. Here, by detailed monitoring of subcellular localizations of the fluorescently labelled natural cytokinin probe and the receptor ARABIDOPSIS HISTIDINE KINASE 4 (CRE1/AHK4) fused to GFP reporter, we show that pools of the ER-located cytokinin receptors can enter the secretory pathway and reach the PM in cells of the root apical meristem, and the cell plate of dividing meristematic cells. Brefeldin A (BFA) experiments revealed vesicular recycling of the receptor and its accumulation in BFA compartments. We provide a revised view on cytokinin signalling and the possibility of multiple sites of perception at PM and ER.},
  author       = {Kubiasova, Karolina and Montesinos López, Juan C and Šamajová, Olga and Nisler, Jaroslav and Mik, Václav and Semeradova, Hana and Plíhalová, Lucie and Novák, Ondřej and Marhavý, Peter and Cavallari, Nicola and Zalabák, David and Berka, Karel and Doležal, Karel and Galuszka, Petr and Šamaj, Jozef and Strnad, Miroslav and Benková, Eva and Plíhal, Ondřej and Spíchal, Lukáš},
  issn         = {20411723},
  journal      = {Nature Communications},
  publisher    = {Springer Nature},
  title        = {{Cytokinin fluoroprobe reveals multiple sites of cytokinin perception at plasma membrane and endoplasmic reticulum}},
  doi          = {10.1038/s41467-020-17949-0},
  volume       = {11},
  year         = {2020},
}

@article{8634,
  abstract     = {In laboratory studies and numerical simulations, we observe clear signatures of unstable time-periodic solutions in a moderately turbulent quasi-two-dimensional flow. We validate the dynamical relevance of such solutions by demonstrating that turbulent flows in both experiment and numerics transiently display time-periodic dynamics when they shadow unstable periodic orbits (UPOs). We show that UPOs we computed are also statistically significant, with turbulent flows spending a sizable fraction of the total time near these solutions. As a result, the average rates of energy input and dissipation for the turbulent flow and frequently visited UPOs differ only by a few percent.},
  author       = {Suri, Balachandra and Kageorge, Logan and Grigoriev, Roman O. and Schatz, Michael F.},
  issn         = {1079-7114},
  journal      = {Physical Review Letters},
  keywords     = {General Physics and Astronomy},
  number       = {6},
  publisher    = {American Physical Society},
  title        = {{Capturing turbulent dynamics and statistics in experiments with unstable periodic orbits}},
  doi          = {10.1103/physrevlett.125.064501},
  volume       = {125},
  year         = {2020},
}

@article{8943,
  abstract     = {The widely used non-steroidal anti-inflammatory drugs (NSAIDs) are derivatives of the phytohormone salicylic acid (SA). SA is well known to regulate plant immunity and development, whereas there have been few reports focusing on the effects of NSAIDs in plants. Our studies here reveal that NSAIDs exhibit largely overlapping physiological activities to SA in the model plant Arabidopsis. NSAID treatments lead to shorter and agravitropic primary roots and inhibited lateral root organogenesis. Notably, in addition to the SA-like action, which in roots involves binding to the protein phosphatase 2A (PP2A), NSAIDs also exhibit PP2A-independent effects. Cell biological and biochemical analyses reveal that many NSAIDs bind directly to and inhibit the chaperone activity of TWISTED DWARF1, thereby regulating actin cytoskeleton dynamics and subsequent endosomal trafficking. Our findings uncover an unexpected bioactivity of human pharmaceuticals in plants and provide insights into the molecular mechanism underlying the cellular action of this class of anti-inflammatory compounds.},
  author       = {Tan, Shutang and Di Donato, Martin and Glanc, Matous and Zhang, Xixi and Klíma, Petr and Liu, Jie and Bailly, Aurélien and Ferro, Noel and Petrášek, Jan and Geisler, Markus and Friml, Jiří},
  issn         = {22111247},
  journal      = {Cell Reports},
  number       = {9},
  publisher    = {Elsevier},
  title        = {{Non-steroidal anti-inflammatory drugs target TWISTED DWARF1-regulated actin dynamics and auxin transport-mediated plant development}},
  doi          = {10.1016/j.celrep.2020.108463},
  volume       = {33},
  year         = {2020},
}

@article{6997,
  author       = {Zhang, Yuzhou and Friml, Jiří},
  issn         = {1469-8137},
  journal      = {New Phytologist},
  number       = {3},
  pages        = {1049--1052},
  publisher    = {Wiley},
  title        = {{Auxin guides roots to avoid obstacles during gravitropic growth}},
  doi          = {10.1111/nph.16203},
  volume       = {225},
  year         = {2020},
}

@article{7343,
  abstract     = {Coinfections with multiple pathogens can result in complex within‐host dynamics affecting virulence and transmission. While multiple infections are intensively studied in solitary hosts, it is so far unresolved how social host interactions interfere with pathogen competition, and if this depends on coinfection diversity. We studied how the collective disease defences of ants – their social immunity – influence pathogen competition in coinfections of same or different fungal pathogen species. Social immunity reduced virulence for all pathogen combinations, but interfered with spore production only in different‐species coinfections. Here, it decreased overall pathogen sporulation success while increasing co‐sporulation on individual cadavers and maintaining a higher pathogen diversity at the community level. Mathematical modelling revealed that host sanitary care alone can modulate competitive outcomes between pathogens, giving advantage to fast‐germinating, thus less grooming‐sensitive ones. Host social interactions can hence modulate infection dynamics in coinfected group members, thereby altering pathogen communities at the host level and population level.},
  author       = {Milutinovic, Barbara and Stock, Miriam and Grasse, Anna V and Naderlinger, Elisabeth and Hilbe, Christian and Cremer, Sylvia},
  issn         = {1461-0248},
  journal      = {Ecology Letters},
  number       = {3},
  pages        = {565--574},
  publisher    = {Wiley},
  title        = {{Social immunity modulates competition between coinfecting pathogens}},
  doi          = {10.1111/ele.13458},
  volume       = {23},
  year         = {2020},
}

@article{7427,
  abstract     = {Plants, like other multicellular organisms, survive through a delicate balance between growth and defense against pathogens. Salicylic acid (SA) is a major defense signal in plants, and the perception mechanism as well as downstream signaling activating the immune response are known. Here, we identify a parallel SA signaling that mediates growth attenuation. SA directly binds to A subunits of protein phosphatase 2A (PP2A), inhibiting activity of this complex. Among PP2A targets, the PIN2 auxin transporter is hyperphosphorylated in response to SA, leading to changed activity of this important growth regulator. Accordingly, auxin transport and auxin-mediated root development, including growth, gravitropic response, and lateral root organogenesis, are inhibited. This study reveals how SA, besides activating immunity, concomitantly attenuates growth through crosstalk with the auxin distribution network. Further analysis of this dual role of SA and characterization of additional SA-regulated PP2A targets will provide further insights into mechanisms maintaining a balance between growth and defense.},
  author       = {Tan, Shutang and Abas, Melinda F and Verstraeten, Inge and Glanc, Matous and Molnar, Gergely and Hajny, Jakub and Lasák, Pavel and Petřík, Ivan and Russinova, Eugenia and Petrášek, Jan and Novák, Ondřej and Pospíšil, Jiří and Friml, Jiří},
  issn         = {09609822},
  journal      = {Current Biology},
  number       = {3},
  pages        = {381--395.e8},
  publisher    = {Cell Press},
  title        = {{Salicylic acid targets protein phosphatase 2A to attenuate growth in plants}},
  doi          = {10.1016/j.cub.2019.11.058},
  volume       = {30},
  year         = {2020},
}

@article{7618,
  abstract     = {This short note aims to study quantum Hellinger distances investigated recently by Bhatia et al. (Lett Math Phys 109:1777–1804, 2019) with a particular emphasis on barycenters. We introduce the family of generalized quantum Hellinger divergences that are of the form ϕ(A,B)=Tr((1−c)A+cB−AσB), where σ is an arbitrary Kubo–Ando mean, and c∈(0,1) is the weight of σ. We note that these divergences belong to the family of maximal quantum f-divergences, and hence are jointly convex, and satisfy the data processing inequality. We derive a characterization of the barycenter of finitely many positive definite operators for these generalized quantum Hellinger divergences. We note that the characterization of the barycenter as the weighted multivariate 1/2-power mean, that was claimed in Bhatia et al. (2019), is true in the case of commuting operators, but it is not correct in the general case. },
  author       = {Pitrik, Jozsef and Virosztek, Daniel},
  issn         = {1573-0530},
  journal      = {Letters in Mathematical Physics},
  number       = {8},
  pages        = {2039--2052},
  publisher    = {Springer Nature},
  title        = {{Quantum Hellinger distances revisited}},
  doi          = {10.1007/s11005-020-01282-0},
  volume       = {110},
  year         = {2020},
}

@article{7697,
  abstract     = {* Morphogenesis and adaptive tropic growth in plants depend on gradients of the phytohormone auxin, mediated by the membrane‐based PIN‐FORMED (PIN) auxin transporters. PINs localize to a particular side of the plasma membrane (PM) or to the endoplasmic reticulum (ER) to directionally transport auxin and maintain intercellular and intracellular auxin homeostasis, respectively. However, the molecular cues that confer their diverse cellular localizations remain largely unknown.
* In this study, we systematically swapped the domains between ER‐ and PM‐localized PIN proteins, as well as between apical and basal PM‐localized PINs from Arabidopsis thaliana , to shed light on why PIN family members with similar topological structures reside at different membrane compartments within cells.
* Our results show that not only do the N‐ and C‐terminal transmembrane domains (TMDs) and central hydrophilic loop contribute to their differential subcellular localizations and cellular polarity, but that the pairwise‐matched N‐ and C‐terminal TMDs resulting from intramolecular domain–domain coevolution are also crucial for their divergent patterns of localization.
* These findings illustrate the complexity of the evolutionary path of PIN proteins in acquiring their plethora of developmental functions and adaptive growth in plants.},
  author       = {Zhang, Yuzhou and Hartinger, Corinna and Wang, Xiaojuan and Friml, Jiří},
  issn         = {1469-8137},
  journal      = {New Phytologist},
  number       = {5},
  pages        = {1406--1416},
  publisher    = {Wiley},
  title        = {{Directional auxin fluxes in plants by intramolecular domain‐domain co‐evolution of PIN auxin transporters}},
  doi          = {10.1111/nph.16629},
  volume       = {227},
  year         = {2020},
}

@unpublished{9750,
  abstract     = {Tension of the actomyosin cell cortex plays a key role in determining cell-cell contact growth and size. The level of cortical tension outside of the cell-cell contact, when pulling at the contact edge, scales with the total size to which a cell-cell contact can grow1,2. Here we show in zebrafish primary germ layer progenitor cells that this monotonic relationship only applies to a narrow range of cortical tension increase, and that above a critical threshold, contact size inversely scales with cortical tension. This switch from cortical tension increasing to decreasing progenitor cell-cell contact size is caused by cortical tension promoting E-cadherin anchoring to the actomyosin cytoskeleton, thereby increasing clustering and stability of E-cadherin at the contact. Once tension-mediated E-cadherin stabilization at the contact exceeds a critical threshold level, the rate by which the contact expands in response to pulling forces from the cortex sharply drops, leading to smaller contacts at physiologically relevant timescales of contact formation. Thus, the activity of cortical tension in expanding cell-cell contact size is limited by tension stabilizing E-cadherin-actin complexes at the contact.},
  author       = {Slovakova, Jana and Sikora, Mateusz K and Caballero Mancebo, Silvia and Krens, Gabriel and Kaufmann, Walter and Huljev, Karla and Heisenberg, Carl-Philipp J},
  booktitle    = {bioRxiv},
  pages        = {41},
  publisher    = {Cold Spring Harbor Laboratory},
  title        = {{Tension-dependent stabilization of E-cadherin limits cell-cell contact expansion}},
  doi          = {10.1101/2020.11.20.391284},
  year         = {2020},
}

@article{6634,
  abstract     = {In this paper we prove several new results around Gromov's waist theorem. We give a simple proof of Vaaler's theorem on sections of the unit cube using the Borsuk-Ulam-Crofton technique, consider waists of real and complex projective spaces, flat tori, convex bodies in Euclidean space; and establish waist-type results in terms of the Hausdorff measure.},
  author       = {Akopyan, Arseniy and Hubard, Alfredo and Karasev, Roman},
  journal      = {Topological Methods in Nonlinear Analysis},
  number       = {2},
  pages        = {457--490},
  publisher    = {Akademicka Platforma Czasopism},
  title        = {{Lower and upper bounds for the waists of different spaces}},
  doi          = {10.12775/TMNA.2019.008},
  volume       = {53},
  year         = {2019},
}