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CA Models of Myxobacteria Swarming [chapter]

Yilin Wu, Nan Chen, Matthew Rissler, Yi Jiang, Dale Kaiser, Mark Alber
2006 Lecture Notes in Computer Science  
We develop two models for Myxobacteria swarming, a modified Lattice Gas Cellular Automata (LGCA) model and an off-lattice CA model.  ...  In the swarming simulations for A+S-Myxobacteria, we demonstrate the formation of peninsula structures, in agreement with experiments.  ...  Swarming of Myxobacteria has been modeled using a continuous model with partial differential equations (PDE) [9] , which treats the radial swarming pattern expansion as a one-dimensional problem and assumes  ... 
doi:10.1007/11861201_24 fatcat:2f55egepffartfumzymt7idgnu

Enrichment and Phylogenetic Analysis of Moderately Thermophilic Myxobacteria from Hot Springs in Japan

Takashi Iizuka, Mitsunori Tokura, Yasuko Jojima, Akira Hiraishi, Shigeru Yamanaka, Ryosuke Fudou
2006 Microbes and Environments  
During the search for thermophilic myxobacteria in geothermal environments, four myxobacteria-like cultures that grew at temperatures of up to 50°C and optimally at 45-49°C were enriched from various hot  ...  These clones were distantly positioned within this suborder, and mostly shown to represent new genera of myxobacteria.  ...  Acknowledgements The authors wish to thank Masaru Ishihara of Ajinomoto Co., for collecting samples at Takeo hot spring in Saga prefecture.  ... 
doi:10.1264/jsme2.21.189 fatcat:fboiyo6r5zbp3npisaun2lxe2q

Marine Myxobacteria as a Source of Antibiotics—Comparison of Physiology, Polyketide-Type Genes and Antibiotic Production of Three New Isolates of Enhygromyxa salina

Till F. Schäberle, Emilie Goralski, Edith Neu, Özlem Erol, Georg Hölzl, Peter Dörmann, Gabriele Bierbaum, Gabriele M. König
2010 Marine Drugs  
All isolates were rod-shaped cells showing gliding motility and fruiting body formation as is known for myxobacteria. They required NaCl for growth, with an optimum concentration of around 2% [w/v].  ...  The strains were cultivated in salt water containing media and subjected to studies to determine their taxonomic status, the presence of genes for the biosynthesis of polyketides and antibiotic production  ...  Acknowledgements Funding for this work came from the German Research Foundation (DFG) within the framework of the FOR 845.  ... 
doi:10.3390/md8092466 pmid:20948900 pmcid:PMC2953396 fatcat:uatwatcblrethh6c3vfcy6flxi

Pseudenhygromyxa salsuginis gen. nov., sp. nov., a myxobacterium isolated from an estuarine marsh

T. Iizuka, Y. Jojima, A. Hayakawa, T. Fujii, S. Yamanaka, R. Fudou
2012 International Journal of Systematic and Evolutionary Microbiology  
Those features coincided with the general characteristics of myxobacteria. The strain was mesophilic and strictly aerobic.  ...  These characteristics determined in this polyphasic study suggested that strain SYR-2 T represents a novel species in a new genus of myxobacteria.  ...  Euzéby of É cole Nationale Vétérinaire de Toulouse (ENVT) for his help with the Latin nomenclature of the species epithet.  ... 
doi:10.1099/ijs.0.040501-0 pmid:22821734 fatcat:q7rzi44ogbfsdmhrx4qde4jrby

Comparative Analysis of Myxococcus Predation on Soil Bacteria

A. D. Morgan, R. C. MacLean, K. L. Hillesland, G. J. Velicer
2010 Applied and Environmental Microbiology  
Many species of the soil-dwelling myxobacteria are predators of other microbes, but their predation range is poorly characterized.  ...  To better understand the predatory capabilities of myxobacteria in nature, we analyzed the predation performance of numerous Myxococcus isolates across 12 diverse species of bacteria.  ...  Many myxobacteria, including the model species Myxococcus xanthus, exhibit several complex social traits, including fruiting body formation and spore formation (14, 18, 34, 62, 71) , cooperative swarming  ... 
doi:10.1128/aem.00414-10 pmid:20802074 pmcid:PMC2953020 fatcat:gcnrlvy52zdpxa75b7estdoc7e

Myxobacterial Response to Methyljasmonate Exposure Indicates Contribution to Plant Recruitment of Micropredators

Barbara I. Adaikpoh, Shukria Akbar, Hanan Albataineh, Sandeep K. Misra, Joshua S. Sharp, D. Cole Stevens
2020 Frontiers in Microbiology  
metabolism, swarm expansion, and production of lytic enzymes.  ...  Myxobacteria are competent predators of plant pathogens and are generally considered beneficial to rhizobiomes.  ...  Growth of myxobacteria in cooperative swarms affords the ability to observe growth as a function of swarm expansion rate (McBride et al., 1992; Zhou and Nan, 2017) .  ... 
doi:10.3389/fmicb.2020.00034 pmid:32047489 pmcid:PMC6997564 fatcat:d7r24mcmnjav7gc3fufu5mkrk4

Screening of Anticancer Materials from Myxobacteria in Different Natural Ecological Environment

Zhang Liping, Jia Hong
2011 International Journal of Biology  
cell lines such as L1210, Hela and MRC-5 as screening model.  ...  By study on ecological diversity of myxobacteria in some areas of Hebei, Yunnan Province and the Qinghai-Tibet Plateau, more than 150 strains of 10 genera (Archangium, Myxococcus, Cystobacter, Corallococcus  ...  Methods Fermentation of Myxobacteria Purified strains were remained in VY/2 medium and inoculated to CAS seed medium, shaking with 200r/min for 4 days at 28 °C.  ... 
doi:10.5539/ijb.v3n2p57 fatcat:3ruk4tr7nzde3akba3sa2ujlge

Surface tension gradients: feasible model for gliding motility of Myxococcus xanthus

K H Keller, M Grady, M Dworkin
1983 Journal of Bacteriology  
to each other, and show that the model is consistent with observed behavior; and (iv) predict the behavior of cells moving in dense swarms.  ...  We propose that surface tension is the driving force for the gliding motility of Myxococcus xanthus. Our model requires that the cell be able to excrete surfactant in a polar and reversible fashion.  ...  ACKNOWLEDGMENT This research was supported by Public Health Service grant GM19957 from the National Institute of General Medical Sciences.  ... 
pmid:6411689 pmcid:PMC217835 fatcat:qobtptckt5fvnb5jadoho5nfem

On Cellular Automaton Approaches to Modeling Biological Cells [chapter]

Mark S. Alber, Maria A. Kiskowski, James A. Glazier, Yi Jiang
2003 IMA Volumes in Mathematics and its Applications  
In particular, we review recent models for rippling in myxobacteria, cell aggregation, swarming, and limb bud formation.  ...  These LGCA-based models show the versatility of CA in modeling and their utility in addressing basic biological questions.  ...  In such cases CA models are perfect for studying swarming as a collective behavior arising from individual local rules.  ... 
doi:10.1007/978-0-387-21696-6_1 fatcat:d45qrwcb75fu7fe3dd4cyj2jby

Hdsp, a horizontally transferred gene required for social behavior and halotolerance in salt-tolerant Myxococcus fulvus HW-1

Hong-wei Pan, Zai-gao Tan, Hong Liu, Zhi-feng Li, Cui-ying Zhang, Cheng-yun Li, Jie Li, Yue-zhong Li
2010 The ISME Journal  
The YLH0401 strain was determined to be mutated by a single insertion in a large gene of unknown function (7011 bp in size), which is located in a horizontally transferred DNA fragment.  ...  Acknowledgements We thank Drs D Kaiser (Stanford University), HB Kaplan (University of Texas Medical School), DR Zusman (University of California, Berkeley) and Z Yang (Virginia Polytechnic Institute and  ...  These characteristics make HW-1 an ideal model for studying the adaptation mechanisms of salt-tolerant myxobacteria to marine environments.  ... 
doi:10.1038/ismej.2010.52 pmid:20410933 fatcat:j5yb6usb2na6zfdlyrb6wlpysi

New Locus Important for Myxococcus Social Motility and Development

C.-y. Zhang, K. Cai, H. Liu, Y. Zhang, H.-w. Pan, B. Wang, Z.-h. Wu, W. Hu, Y.-z. Li
2007 Journal of Bacteriology  
for the swarming and aggregation of cells (7, 8) .  ...  Differences in morphogenetic characteristics appear to indicate that salt-tolerant myxobacteria are the result of the adaptation of soil myxobacteria to marine environments (29) .  ... 
doi:10.1128/jb.00942-07 pmid:17720782 pmcid:PMC2168718 fatcat:6pzwau7ua5dundgbsqw4w5a3ja

Cell Contact–Dependent Outer Membrane Exchange in Myxobacteria: Genetic Determinants and Mechanism

Darshankumar T. Pathak, Xueming Wei, Alex Bucuvalas, Daniel H. Haft, Dietlind L. Gerloff, Daniel Wall, Diarmaid Hughes
2012 PLoS Genetics  
We further hypothesize that cell contact-dependent exchange helps myxobacteria to coordinate their social behaviors.  ...  Importantly, OM exchange was found to regulate swarming and development behaviors, suggesting a new role in cell-cell communication.  ...  The initial 3-D model was obtained using MODELLER 9.9, with 2XJP (FLO5) as template structure (default parameters, best-scoring of 20 models) [59] .  ... 
doi:10.1371/journal.pgen.1002626 pmid:22511878 pmcid:PMC3325183 fatcat:vud6ow3tbvd2rbc63vnwircqia

Mechanisms for bacterial gliding motility on soft substrates

Joël Tchoufag, Pushpita Ghosh, Connor B. Pogue, Beiyan Nan, Kranthi K. Mandadapu
2019 Proceedings of the National Academy of Sciences of the United States of America  
Using myxobacteria as an example of such organisms, we identify here the physical principles behind gliding motility and develop a theoretical model that predicts a 2-regime behavior of the gliding speed  ...  model.  ...  C.B.P. and B.N. are supported by the National Institute of General Medical Sciences of the NIH under Grant R01GM129000. J.T. and K.K.M. are supported by NIH Grant R01GM110066.  ... 
doi:10.1073/pnas.1914678116 pmid:31767758 pmcid:PMC6911197 fatcat:jpzr55fcmva4doy7fjxt3bsszq

Recent advances in the social and developmental biology of the myxobacteria

M Dworkin
1996 Microbiological reviews  
The work of my laboratory has been supported for many years by the National Institutes of Health and currently by grant GM-19957.  ...  to the Ca 2ϩ -binding sequence of calmodulin (89) .  ...  social behaviors such as swarming and rippling that are characteristic of wild-type myxobacteria.  ... 
pmid:8852896 pmcid:PMC239419 fatcat:etojzzrrnreedd4xmp6u4z5rb4

Steroid biosynthesis in prokaryotes: identification of myxobacterial steroids and cloning of the first bacterial 2,3(S)-oxidosqualene cyclase from the myxobacterium Stigmatella aurantiaca

Helge Björn Bode, Bernd Zeggel, Barbara Silakowski, Silke C. Wenzel, Hans Reichenbach, Rolf Müller
2003 Molecular Microbiology  
Here, we report on a variety of sterol-producing myxobacteria.  ...  Additionally, we describe the cloning of the first bacterial steroid biosynthesis gene, cas , encoding the cycloartenol synthase (Cas) of S. aurantiaca .  ...  Lünsdorf for the comparison of wild-type and mutant cells by electron microscopy, N. Nimtz for help with the mass spectroscopic analyses of triterpenoids, and E.  ... 
doi:10.1046/j.1365-2958.2003.03309.x pmid:12519197 fatcat:n3der2gbqjf7nj7bagqmw4uq3i
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