Bacteria in the genus Wolbachia are commonly found living within insects, but their presence in cockroaches has not been thoroughly explored. A new study finds Wolbachia in four of 16 cockroach species across three families, and researchers hope further study may open doors to new management methods for pest cockroach species.
A recent review in the open-access Journal of Insect Science shines a light on the diversity of host-symbiont relationships among holometabolous insects.
New research on bacterial endosymbionts in insects suggests that such bacteria may infect a wide variety of insect species but a low proportion of individuals within those species.
Insects have evolved a variety of mechanisms to try to overcome the effects of insecticides—including, in some cases, help from the bacteria and other microbes living in insects' guts. A growing number of studies indicate a link between symbiotic microbes and insecticide resistance in a diverse range of insects.
In cicadas, a world of microbes has evolved to provide them nutrients. Researchers at the University of Montana have discovered that a cicada bacterial endosymbiont, Hodgkinia cicadicola, has split into at least two dozen lineages within cicada cells, in an apparent case of nonadaptive evolution.