Results 31 to 40 of about 6,498 (238)

The Kinky Propulsion of Spiroplasma [PDF]

Cell, 2005
Bacteria have evolved many different means of generating movement. In this issue of Cell, Shaevitz et al. (2005) describe the swimming movement of a helical bacterium called Spiroplasma. They discover that Spiroplasma propels itself by generating two temporally distinct kinks that travel the length of the bacterium. These results point to the existence
Charles W. Wolgemuth, Nyles W. Charon
openaire   +3 more sources

Spider Mites Singly Infected With Either Wolbachia or Spiroplasma Have Reduced Thermal Tolerance

Frontiers in Microbiology, 2021
Heritable symbionts play an essential role in many aspects of host ecology in a temperature-dependent manner. However, how temperature impacts the host and their interaction with endosymbionts remains largely unknown.
Yu‐Xi Zhu, Zhang-Rong Song, Yi-Yin Zhang, A. Hoffmann, X. Hong   +4 more
semanticscholar   +1 more source

Kinematics of the Swimming ofSpiroplasma [PDF]

Physical Review Letters, 2009
\emph{Spiroplasma} swimming is studied with a simple model based on resistive-force theory. Specifically, we consider a bacterium shaped in the form of a helix that propagates traveling-wave distortions which flip the handedness of the helical cell body.
Jing Yang, Charles W. Wolgemuth, Greg Huber   +2 more
openaire   +3 more sources

ATP-dependent polymerization dynamics of bacterial actin proteins involved in Spiroplasma swimming

bioRxiv, 2021
MreB is a bacterial protein belonging to the actin superfamily. It polymerises into an antiparallel double-stranded filament that generally functions in cell shape determination by maintaining cell wall synthesis.
Daichi Takahashi, I. Fujiwara, Yuya Sasajima, A. Narita, K. Imada, M. Miyata   +5 more
semanticscholar   +1 more source

Spiroplasma membrane lipids [PDF]

Journal of Bacteriology, 1985
Membranes of six spiroplasma strains belonging to different Spiroplasma species and subgroups were isolated by a combination of osmotic lysis and sonication in the presence of EDTA to block endogenous phospholipase activity. Analysis of membrane lipids showed that in addition to free and esterified cholesterol the spiroplasmas incorporated exogenous ...
Shlomo Rottem, P J Davis, S Razin, A Katznel   +3 more
openaire   +3 more sources

Dual proteomics of Drosophila melanogaster hemolymph infected with the heritable endosymbiont Spiroplasma poulsonii

bioRxiv, 2021
Insects are frequently infected with heritable bacterial endosymbionts. Endosymbionts have a dramatic impact on their host physiology and evolution.
F. Masson, Samuel Rommelaere, A. Marra, F. Schüpfer, B. Lemaître   +4 more
semanticscholar   +1 more source

Characterization of the recA gene regions of Spiroplasma citri and Spiroplasma melliferum [PDF]

Journal of Bacteriology, 1996
In previous studies (A. Marais, J. M. Bove, and J. Renaudin, J. Bacteriol. 178:862-870, 1996), we have shown that the recA gene of Spiroplasma citri R8A2 was restricted to the first 390 nucleotides of the N-terminal part. PCR amplification and sequencing studies of five additional strains of S.
Marais, A., Bové, J.M., Renaudin, Joël
openaire   +4 more sources

Spiroplasma infection as a cause of severe congenital keratouveitis, cataract and glaucoma. [PDF]

BMC Ophthalmol
Background Only seven cases of ocular Spiroplasma infection have been reported to date, all presenting as congenital cataracts with concomitant intraocular inflammation.
Van Haecke H, Roels D, Nerinckx F, Schaballie H, Schelstraete P, Vandekerckhove L, Van Cleemput J, Van den Broeck W, Couck L, Hamerlinck H, Vandendriessche S, Boelens J, Joniau I.   +12 more
europepmc   +2 more sources

The iron transporter Transferrin 1 mediates homeostasis of the endosymbiotic relationship between Drosophila melanogaster and Spiroplasma poulsonii

microLife, 2021
Iron is involved in numerous biological processes in both prokaryotes and eukaryotes and is therefore subject to a tug-of-war between host and microbes upon pathogenic infections. In the fruit fly Drosophila melanogaster, the iron transporter Transferrin
A. Marra, F. Masson, B. Lemaître
semanticscholar   +1 more source

Spiroplasma Bacteria Enhance Survival of Drosophila hydei Attacked by the Parasitic Wasp Leptopilina heterotoma [PDF]

PLoS ONE, 2010
Maternally-transmitted associations between endosymbiotic bacteria and insects are ubiquitous. While many of these associations are obligate and mutually beneficial, many are facultative, and the mechanism(s) by which these microbes persist in their host
Jialei Xie, Igor Vilchez, Mariana Mateos
openalex   +3 more sources