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Wolbachia obligate intracellular symbiont reproductive strategies


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Wolbachia virus
Obligate intracellular symbiont
four major reproductive strategies
basic information

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Wolbachia obligate intracellular symbiont reproductive strategies

  1. 1. By: Thomas Garrity and Presley Davis
  2. 2. Wolbachia pipientis • Gram-negative • Common obligate intracellular bacteria • Normally found in arthropods and nematodes • In arthropods, it is a parasitic symbiont. • In nematodes, it is mostly a mutualistic symbiont. • It is inherited vertically but can be inherited horizontally across species • Causes reproductive incompatibility, parthenogenesis, and feminization. • Found in reproductive tissues (ovaries and testes) • First reported in tissues of mosquito
  3. 3. What is meant by an obligate, intracellular symbiont? An obligate intracellular symbiont cannot reproduce outside of their host cell. This means that the parasite’s reproduction depends entirely on resources in the cell.
  4. 4. The Four Basic Reproductive Strategies Used by Wolbachia 1.Feminization of infected males (turning them into females or pseudo-females that are infertile) 2.Parthenogenesis: reproduction of infected females without males 3.Killing of infected males 4.Cytoplasmic incompatibility: modification of sperm from infected males which results in embryonic defects and death when sperm fertilize eggs that are not infected