"Bacterial symbionts" refers to bacteria that live in a mutually beneficial relationship with another organism. Both the bacteria and the host organism benefit from this partnership.
Full definition
Scientists of the Max Planck Research Group Insect Symbiosis at the Max Planck Institute for Chemical Ecology in Jena, Germany, together with colleagues at the Friedrich Schiller University, have now found that
bacterial symbionts in the insects» gut produce these vitamins and thereby ensure the host's metabolic stability and, ultimately, survival.
Research that a chemical signal from a bacterium sends this eukaryote, S. rosetta, into a mating frenzy, a finding that raises the possibility that environment bacteria or
bacterial symbionts regulate mating in animals.
Furthermore, unlike most organisms, Nasonia species can be made inter-fertile in the lab by
removing bacterial symbionts (Wolbachia) that cause sperm - egg incompatibilities among the species [11], [12].
The study is the first to show conclusively that
a bacterial symbiont can protect aphids against parasites, says Richard Stouthamer, an ecologist at the University of California, Riverside.
With the acquisition of a number of key genes and lipids from
a bacterial symbiont, it would be possible for Loki - type cells to evolve a primitive membrane trafficking machinery and compartmentalization.»
They add that this discovery «raises the possibility that environmental bacteria or
bacterial symbionts may influence mating in animals as well.»
Controlled experiments by the scientists from Jena implicate
the bacterial symbionts in supplementing B vitamins to firebugs as an important feature of this association.
The broad protection offered by the antibiotic cocktail against a variety of mold fungi is probably related to the large number of substances produced by
the bacterial symbionts.