Bacterial transmission tactics

Transmission of Bacterial Endophytes

Plants are hosts to complex communities of endophytic bacteria that colonize the interior of both below- and aboveground tissues. Bacteria living inside plant tissues as endophytes can be horizontally acquired from the environment with each new generation, or vertically transmitted from generation to generation via seed. A better understanding of bacterial endophyte transmission routes and mode...

Metafol: Program Tactics and Logic Tactics plus Reflection Metafol: Program Tactics and Logic Tactics plus Reeection

universit a di genova facolt a di ingegneria dipartimento informatica sistemistica telematica Abstract The goal of this paper is to present a reasoning system, called METAFOL, embodying the features of a self-reeective system, i.e. a system which has a representation of its own code and is able to reason about and, possibly, extend or modify it. These features have been achieved by employing a ...

Transmission electron microscopy of the bacterial nucleoid.

Water-containing biological material cannot withstand the vacuum of the transmission electron microscope. The classical solution to this problem has been to dehydrate chemically fixed biological samples and then embed them in resin. During such treatment, the bacterial nucleoid is especially prone to aggregation, which affects its global shape and fine structure. Initial attempts to deal with a...

Vertical and horizontal transmission drive bacterial invasion.

A huge variety of Arthropod species is infected with endosymbiotic Wolbachia bacteria that manipulate their host's reproduction to invade populations. In addition to vertical transmission from mother to offspring through the egg cytoplasm, it has been demonstrated through phylogenetic analyses and natural transfer experiments that horizontal transmission of Wolbachia (i.e. contagion) can occur ...

Risk of bacterial transmission in dental practice.