Inhibiting the "drug efflux pumps" in bacteria, which function as their defence mechanisms against antibiotics, can mask the effect of mutations that have led to resistance in the form of low-affinity ...
... bacterium Escherichia coli. By means of this model organism, they have uncovered the existence of a mechanism that repairs proteins in the cell that have been damaged by oxygen. There are indications ...
... itself so as not to be broken down together with the food ingested. Two such important defence mechanisms are the stomach's constant renewal of the mucous layer that covers the mucous membrane and its ...
... a sub-category. It has already been shown that siRNAs occur naturally in plants as a defence mechanism against viral infection, but it is not known whether they occur in animals as Jens Kurreck ...
... "switch" to the Oregon grape. The Oregon grape on the other hand could not develop any defence mechanisms against its herbivores.
Nevertheless, it prospers so well in Central Europe that the Swiss ...
... salad?
Salmonella can infect plant cells and successfully evade all the defence mechanisms of plants so cleaning the surfaces of raw fruits and vegetables, e.g. by washing, is not ...
... caused by the imbalance between the reactive oxygen substances production and the organism defence mechanisms which acts rapidly in the detoxification of these substances or repairs the damage. The ...
... oxidation suffered by a plant due to high salinity), studied its antioxidant capacity, that is its defence mechanisms. Her conclusion was that high concentrations of CO2 alleviate this stress.
In ...
... of the box tree
The box is a model species and a good example for analysing the defence mechanisms of plants: it is capable of withstanding quite different environments (both dry and sunny climes as ...
... of their proteins to the red cell surface.
Switching of surface proteins is a key defence mechanism for malaria parasites, as well as being essential for successful transfer between human and ...
... that act as molecular 'pumps', preventing toxic compounds from accumulating in the cell. This defence mechanism against toxic chemicals is called multi-xenobiotic resistance (MXR). Substances that ...
... located on the outside of immune cells, our body's defence system. The toll-like receptors jointly ... sets off an alarm in the immune system and the defence mechanism is activated. Yet B. pseudomallei ...
... family of bacteria.
Colonies of bacteria such as Streptomyces naturally make antibiotics as a defence mechanism when those colonies are under stress and thus more susceptible to attack from other ...
Scientists engineer cells in the lab to overcome one of HIV's most effective defence mechanisms.
... species evolved. Some octopuses lost their defensive ink sacs because there was no need for the defence mechanisms in the pitch black waters more than two kilometres below the surface.
Dr Allcock, ...
