1965 Apr; 38:33–41. 1961 May; 25:47–59. Skip to main content Accessibility help We use cookies to distinguish you from other users and to … 1961 Oct; 3:588–614. Tel ... Physarum polycephalum, Aureobasidium sp. Biochim Biophys Acta. Semantic Scholar uses AI to extract papers important to this topic. Jacobson DN (1980) Locomotion of Physarum polycephalum amoebae is guided by a short–range interaction with E. coli. [Europe PMC free article] [Google Scholar] DANIEL JW, RUSCH HP. Sci., U.S.A., 73 (1976), pp. Synthesis of a cytoplasmic DNA during the G2 interphase of Physarum polycephalum. Eggehard Holler Institut für Biophysik und physikalische Biochemie der Universität Regensburg, D-93040 Regensburg, Germany * Corresponding author. J Gen Microbiol. 3896-3899 CrossRef View Record in Scopus Google Scholar Physarum polycephalum, literally the ‘many-headed’ slime mold, is a giant multi–nucleated but unicellular protist.Since the time of its first description, it has been the subject of a multitude of cell biological, biochemical, genetic, and lately physical studies. 1985 Nov; 17 (4):229–238. Adamatzky, A.: Physarum Machines: Computers from Slime Mould. What is Physarum? This paper introduces a novel application of bionic engineering: a bionic musical instrument using Physarum polycephalum.Physarum polycephalum is a huge single cell with thousands of nuclei, which behaves like a giant amoeba. [Google Scholar] Tanaka K. Intranuclear microtubule organizing center in early prophase nuclei of the plasmodium of the slime mold, Physarum polycephalum. Nature. 1955 May 21; 175 (4464):890–891. The strong similarities between disparate systems, representing different kingdoms of life, and different levels of biological organisation, suggest that collective biological systems may follow common design features. Principles of an object-oriented programming language for Physarum polycephalum computing. The slime mould is efficient in imitating formation of man-made road networks, where major urban areas are sources of nutrients. It is known that this simple amoeboid organism has the ability to find the shortest route between two points in a labyrinth or on a ring (Nakagaki et al. The slime mould exhibits some remarkable characteristics that have been exploited by researchers in a plethora of different research areas, including mapping (Tero et al., 2006, Adamatzky and Jones, 2010), robotic … 2014. Radiation sensitivity and the mitotic cycle in Vicia faba. Exp Cell Res 125: 441–452 CrossRef Google Scholar Jeffery WR, Rusch HP (1974) Induction of somatic fusion and heterokaryosis in two incompatible strains of Physarum polycephalum. Food quality had a significant, positive effect on how long plasmodia waited before resuming search behavior and on how long it took to abandon food disks. Results of inhibition of KB cell culture screen are given for comparison. The pure culture of Physarum polycephalum on a partially defined soluble medium. Google Scholar Physarum polycephalum: Yellow goo that thinks Physarum polycephalum is one of a group of strange species called "myxomycetes." CrossRef Google Scholar The biochemical nature and location(s) of the oscillator(s), i.e. Chemical Science, 6 (5), 2859–2868. 1. J Jones, R Mayne, A Adamatzky. Shipley GL, Marrs J, Yang F. Growth and differentiation of wild type amoebae of Physarum polycephalum in liquid culture. 2014. Techniques were developed to facilitate genetic analysis of a Myxomycete, Physarum polycephalum.The uninucleate cells that form part of the life-cycle (the ‘amoebae’), in two-membered culture with Pseudomonas fluorescens, were found to be suitable for handling by some of the standard techniques of microbial genetics, including plating.. 2. Biochem Biophys Res Commun. A gene conferring actidione resistance and abnormal morphology on Physarum polycephalum plasmodia - Volume 15 Issue 1 - Jennifer Dee, Russell T. M. Poulter. The cytoplasmic aspects of mitochondrial biogenesis have been the focus of much recent attention and a review is presented here of studies on the life cycle of mitochom dria inPhysarum polycephalum. Introduction. Morphological observations on growth and differentation of Physarum polycephalum grown in pure culture. Its complex life cycle and rich cell biology is reflected in more than 2500 publications on various aspects of its biochemistry, developmental biology, cytoskeleton, and cell motility. We quantified the search pattern of plasmodia after engulfment of food of 6 different qualities. Acad. THE EFFECT OF ACTINOMYCIN D ON THE TIMING OF MITOSIS IN PHYSARUM POLYCEPHALUM. Abstract. Ltd., London (2010) Google Scholar Exp Cell Res. World Scientific Publishing Co., Pte. Cell Differ. Gröbner, P., and Loidl, 1984, Thymidine kinase: A novel affinity chromatography of the enzyme and its regulation by phosphorylation in Physarum polycephalum, J. Biol. natn. Physarum polycephalum, because of its unique life cycle, is a useful organism in which to address a wide variety of questions of biological interest.These include problems relating to motility, differentiation, cell cycle regulation, and ultrastructural organization of the mitotic apparatus. Physarum polycephalum exhibits the same kind of economically irrational behaviour as has been described in humans (Latty and Beekman 2011a). Abstract. A hybrid living/organic electrochemical transistor based on the Physarum polycephalum cell endowed with both sensing and memristive properties. The force generating system for these phenomena is cytoplasmic actomyosin. Myxogastrids are closely related to the cellular slime molds, or dictyostelids, including the well known Dictyostelium discoideum. It also detects X-shaped recombination intermediates in meiotic cells, in the form of a typical vertical spike. Physarum polycephalum has been the subject of numerous studies as a living agent that could be integrated into a biological computer system in the future. Using the synergistic effect of ultraviolet light and caffeine, mutants of this line have been isolated which fail to undergo the developmental transition between haploid amoebae and diploid plasmodia (apt mutants). 1978 Jun 22; 519 (1):118–124. Plasmodium of acellular slime mould Physarum polycephalum exhibits traits of wave-like behaviour. A true slime mold, the plasmodium of Physarum polycephalum is an amoeboid organism with a sheet-like shape. [Google Scholar] Evans TE. [Google Scholar] Affolter HU, Braun R. Ribosomal DNA in spores of Physarum polycephalum. The plasmodia of Physarum polycephalum show different oscillatory phenomena (time period approximately 1.3 min) in their contraction behaviour and their protoplasmic flow. View Physarum Polycephalum Research Papers on Academia.edu for free. We used a similar approach to grow slime mould on a three-dimensional template of Moon to speculate on potential colonization scenarios. The rate and extent of plasmodium formation were studied in mating tests involving pairs of largely isogenic amoeba1 strains compatible for matingtype ( mt ) alleles. The life cycle of Physarum polycephalum as we … Detailed knowledge of the life cycle is a prerequisite for meaningful genetic analysis of any organism. This method resolves DNA structures containing replication forks. [Google Scholar] McLEISH J. Dev Biol. 1. Semantic Scholar uses AI to extract papers important to this topic. [Google Scholar] MITTERMAYER C, BRAUN R, RUSCH HP. Chem., 259: 8012 PubMed Google Scholar Using 50 percent growth inhibition of Physarum polycephalum (a coenocytic slime mold) as a screen for the selection of antitumor agents, 44 of the 195 compounds tested were effective at concentrations of <100 µg/ml. 2016 Oscillations and uniaxial mechanochemical waves in a model of an active poroelastic medium: Application to deformation patterns in protoplasmic droplets of Physarum polycephalum [Google Scholar] SIRLIN JL. Physarum polycephalum, an acellular plasmodial species belongs to the amoebozoa, a major branch in eukaryote evolution. Intriguingly, such a spike of joint DNA molecules is often detectable in replicating DNA from mitotic cells. Physarum, or more precisely Physarum polycephalum, is an acellular slime mold, or myxogastrid. P. polycephalum Responds to a Stimulus with a Propagating Change in Contraction Dynamics.. To follow the propagation of a stimulus throughout a P. polycephalum network we first observed networks before and after stimulation using bright-field microscopy over the course of 2 to 3 h. Data were analyzed to extract and track contractions along each tube (Materials and Methods). The plasmodium’s behaviour can be finely tuned in laboratory experiments by using herbal tablets. Two-dimensional neutral/neutral agarose gel electrophoresis is used extensively to localize replication origins. A derivative line of the homothallic Colonia strain of Physarum polycephalum has been isolated which produces plasmodia with high efficiency within clones of amoebae. Physarum polycephalum is a single celled, multi‐nucleate amoeboid organism that can attain sizes exceeding 930 cm 2 (Kessler 1982). Eggehard Holler. Google Scholar. During its vegetative stage P. polycephalum is an active, motile plasmodium capable of migrating at speeds of up to 5 cm/hr (Kessler 1982). Proceedings of the Royal Society B: Biological Sciences, 278, 539 – 545. doi:10.1098/rspb .2010.1624 Google Scholar Frequency Coupling Model for Dynamics of Responses to Stimuli in Plasmodium of Physarum Polycephalum A Takamatsu, K Takahashi, M Nagao, Y Tsuchiya Journal of the Physical Society of Japan 66 (6), 1638-1646 , 1997 Random network peristalsis in Physarum polycephalum … Spliceosomal introns interrupt nuclear genes and are removed from RNA transcripts (“spliced”) by machinery called spliceosomes. Physarum polycephalum, literally the 'many-headed' slime mold, is a giant multi–nucleated but unicellular protist.Since the time of its first description, it has been the subject of a multitude of cell biological, biochemical, genetic, and lately physical studies. Abstract. W.M Wormington, R.F WeaverPhotoreceptor pigment that induces differentiation in the slime mold Physarum polycephalum Proc. Physarum polycephalum is an amoeboid organism that forages as a flowing mass of pseudopods. Representation of shape mediated by environmental stimuli in Physarum polycephalum and a multi-agent model. A systematic variability was observed: plasmodia formed either rapidly and extensively or slowly and inefficiently. During its foraging behavior this plasmodium produces electrical activity corresponding to different physiological states. the clock governing these phenomena are unknown. While the vast majority of spliceosomal introns are removed by the so-called major spliceosome, diverse eukaryotes also contain a mysterious second form, the minor spliceosome, and associated introns [[1][1]–[3][2]]. A single tablet acts as a fixed attractor: plasmodium propagates towards the tablet, envelops the tablet with its body and stays around the tablet for several days. Plasmodium formation was found to be 103- to 104-fold more extensive in "rapid" crosses than in "slow" crosses. 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