• Wolbachia
  • The genus Wolbachia is of considerable interest today due to its ubiquitous distribution, its many different evolutionary interactions, and its potential use as a biocontrol agent. (wikipedia.org)
  • Wolbachia bacteria maximize their spread by significantly altering the reproductive capabilities of their hosts, with four different phenotypes: Male killing occurs when infected males die during larval development, which increases the rate of born, infected, females. (wikipedia.org)
  • Several host species, such as Trichogramma, are so dependent on sexual differentiation of Wolbachia that they are unable to reproduce effectively without the bacteria in their bodies, and some might even be unable to survive uninfected. (wikipedia.org)
  • In leafminers of the species Phyllonorycter blancardella, Wolbachia bacteria help their hosts produce green islands on yellowing tree leaves, that is, small areas of leaf remaining fresh, allowing the hosts to continue feeding while growing to their adult forms. (wikipedia.org)
  • Muscidifurax uniraptor, a parasitoid wasp, also benefits from hosting a Wolbachia bacterium. (wikipedia.org)
  • organisms
  • Some cases can present with purpura and in one such case the organisms were present in such overwhelming numbers that in 1991 Dr. Aileen Marty of the AFIP was able to demonstrate the bacteria in human tissues using standard stains, and later proved that the organisms were indeed Ehrlichia using immunoperoxidase stains. (wikipedia.org)
  • pathogens
  • Other bacteria are opportunistic pathogens and cause disease mainly in people suffering from immunosuppression or cystic fibrosis. (wikipedia.org)
  • Classification
  • In their classification, the relation between the two order is retained in the subclass, the Rickettsidae, which include the Rickettsiales, the Pelagibacteriales and the extinct protomitochondrion (mitochondria themselves are not bacteria, but organelles). (wikipedia.org)
  • Diseases
  • One of the bacterial diseases with the highest disease burden is tuberculosis, caused by the bacterium Mycobacterium tuberculosis, which kills about 2 million people a year, mostly in sub-Saharan Africa. (wikipedia.org)
  • Pathogenic bacteria contribute to other globally important diseases, such as pneumonia, which can be caused by bacteria such as Streptococcus and Pseudomonas, and foodborne illnesses, which can be caused by bacteria such as Shigella, Campylobacter, and Salmonella. (wikipedia.org)
  • variants
  • There are two cell types of this genus: large cell variants (LCVs) and small cell variants (SCVs). (kenyon.edu)
  • resistant
  • Flies infected with the bacteria are more resistant to RNA viruses such as Drosophila C virus, norovirus, flock house virus, cricket paralysis virus, chikungunya virus, and West Nile virus. (wikipedia.org)
  • known
  • Although the genome itself has not been sequenced, the use of the host cell for replication is known based on comparisons to other Ehrlichia sp. (wikipedia.org)
  • A type IV secretion apparatus is known to help in the transfer of molecules between the bacterium and the host. (wikipedia.org)
  • small
  • The bacterium first resides in an early endosome, where it acquires nutrients for binary fission and grows into small groups called morulae. (wikipedia.org)