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Plants create sugar in the mesophyll cells of their leaves by photosynthesis. This sugar, mostly sucrose, has to be loaded via the bundle sheath into the phloem vascular system (the sieve elements), where it is distributed to growing parts…

Biological Physics · Physics 2014-10-14 Julia Dölger , Hanna Rademaker , Johannes Liesche , Alexander Schulz , Tomas Bohr

In many species, sucrose en route out of the leaf migrates from photosynthetically active mesophyll cells into the phloem down its concentration gradient via plasmodesmata, i.e., symplastically. In some of these plants the process is…

Biological Physics · Physics 2017-09-20 Jean Comtet , Robert Turgeon , Abraham D. Stroock

Plasmodium of Physarum polycephalum is a large cell, visible by unaided eye, which exhibits sophisticated patterns of foraging behaviour. The plasmodium's behaviour is well interpreted in terms of computation, where data are spatially…

Pattern Formation and Solitons · Physics 2012-06-25 Andrew Adamatzky

Intracellular transport of large cargoes, such as organelles, vesicles or large proteins, is a complex dynamical process that involves the interplay of ATP-consuming molecular motors, cytoskeleton filaments and the viscoelastic cytoplasm.…

Biological Physics · Physics 2013-05-29 L. Bruno , V. Levi , M. Brunstein , M. A. Despósito

Vascular plants rely on differences of osmotic pressure to export sugars from regions of synthesis (mature leaves) to sugar sinks (roots, fruits). In this process, known as M\"unch pressure flow, the loading of sugars from photosynthetic…

Biological Physics · Physics 2017-09-20 Jean Comtet , Kaare H. Jensen , Robert Turgeon , Abraham D. Stroock , A. E. Hosoi

The plasmodium of Physarum polycephalum is a large single cell visible with the naked eye. When inoculated on a substrate with attractants and repellents the plasmodium develops optimal networks of protoplasmic tubes which span sites of…

Emerging Technologies · Computer Science 2013-10-24 Richard Mayne , David Patton , Ben de Lacy Costello , Andrew Adamatzky , Rosemary Camilla Patton

Plasmodium of Physarum polycephalum is a single cell visible by unaided eye. During its foraging behaviour the cell spans spatially distributed sources of nutrients with a protoplasmic network. Geometrical structure of the protoplasmic…

Pattern Formation and Solitons · Physics 2015-05-14 Andrew Adamatzky , Jeff Jones

Phosphatidylserine (PS) is a negatively-charged glycerophospholipid found mainly in the plasma membrane (PM) and in the late secretory/endocytic compartments, where it regulates cellular activity and can mediate apoptosis. Export of PS from…

Subcellular Processes · Quantitative Biology 2023-11-10 Alenka {Č}opi{č} , Thibaud Dieudonné , Guillaume Lenoir

The current management of critical size bone defects (CSBDs) remains challenging and requires multiple surgeries. To reduce the number of surgeries, wrapping a biodegradable fibrous membrane around the defect to contain the graft and carry…

Tissues and Organs · Quantitative Biology 2021-01-07 Heather E. Owston , Katrina M. Moisley , Giuseppe Tronci , Stephen J. Russell , Peter V. Giannoudis , Elena Jones

Wounding is a severe impairment of function, especially for an exposed organism like the network-forming true slime mould Physarum polycephalum. The tubular network making up the organism's body plan is entirely interconnected and shares a…

Quantitative Methods · Quantitative Biology 2017-10-25 Felix Bäuerle , Mirna Kramar , Karen Alim

Many cells face search problems, such as finding food, mates or shelter, where their success depends on their search strategy. In contrast to other unicellular organisms, the slime mold Physarum polycephalum forms a giant network-shaped…

Biological Physics · Physics 2024-09-20 Lucas Tröger , Florian Goirand , Karen Alim

Phosphorylation is pivotal in numerous fundamental cellular processes and plays a significant role in the onset and progression of various diseases. The accurate identification of these phosphorylation sites is crucial for unraveling the…

Quantitative Methods · Quantitative Biology 2024-03-27 Ziyang Xu , Haitian Zhong , Bingrui He , Xueying Wang , Tianchi Lu

The phloem vascular system facilitates transport of energy-rich sugar and signaling molecules in plants, thus permitting long range communication within the organism and growth of non-photosynthesizing organs such as roots and fruits. The…

Angiogenesis is the complex process by which new blood vessels develop from an existing vasculature in order to supply nutrients and/or metabolites to tissues, playing a fundamental role in many physiological and pathological conditions…

Tissues and Organs · Quantitative Biology 2019-01-30 Horacio Lopez-Menendez , Joseph D'Alessandro

Pre-mRNA splicing relies on the poorly understood dynamic interplay between >150 protein components of the spliceosome. The steps at which splicing can be regulated remain largely unknown. We systematically analyzed the effect of knocking…

Molecular Networks · Quantitative Biology 2015-01-19 Panagiotis Papasaikas , J. Ramon Tejedor , Luisa Vigevani , Juan Valcarcel

Large-scale cellular transformations are triggered by subtle physical and structural changes in individual biomacromolecular and membrane components. A prototypical example of such an event is the orchestrated fusion of membranes within an…

Soft Condensed Matter · Physics 2023-10-02 Ashesh Ghosh , Andrew J. Spkaowitz

Decision-making is the process of selecting an action among alternatives, allowing biological and artificial systems to navigate complex environments and optimize behavior. While neural systems rely on neuron-based sensory processing and…

Biological Physics · Physics 2025-06-17 Lisa Schick , Emily Eichenlaub , Fabian Drexel , Alexander Mayer , Siyu Chen , Marcus Roper , Karen Alim

Hybrid heterostructures combining transition metal dichalcogenides (TMDs) with light-harvesting dyes are promising materials for next-generation optoelectronics. Yet, controlling and understanding interfacial charge transfer mechanisms in…

The plasmodium of the slime mould Physarum polycephalum has recently received significant attention for its value as a highly malleable amorphous computing substrate. In laboratory-based experiments, micro- and nanoscale artificial circuit…

Emerging Technologies · Computer Science 2013-11-19 Richard Mayne , Andrew Adamatzky

When sheared, most elastic solids such as metals, rubbers and polymer hydrogels dilate in the direction perpendicular to the shear plane. This well-known behaviour known as the Poynting effect is characterized by a positive normal stress.…

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