The mechanism for this sort of evasion is difficult to explain as a naturally occurring feature that accidentally became beneficial, though. Cell walls exist for a reason, to protect the organism itself from its environment. You would expect them to simply change the composition of the cell wall, or rather, for those with a slightly different composition not susceptible to the toxin to survive and multiply, changing the population. Completely stripping the cell wall makes no sense. It's not at all similar to larger animals being able to drop a body part. Geckos dropping a tail when grabbed by a predator, for example. It's like an animal completely shedding its skin when attacked. Even molting, which takes a while, is not shedding the skin itself. It's just shedding the outer layer, the epidermis, while the living part of the skin remains and grows a new epidermis. But this bacteria trick is like dropping the entire skin, which would be very dangerous for animals.
Bacterial 'striptease' evades antibiotics
Researchers at Newcastle University filmed bacteria "undressing" and taking off their outer layer - or cell wall.
Antibiotics can attack cell walls so scientists think this is a new form of drug resistance and could explain why some infections keep coming back.
But experts said it was still unclear if this was having an impact on patients.
|Bacteria take off their coats!||972||Susan Doris||27-Sep-19 04:59|
|Re: Bacteria take off their coats!||105||Nolondil||27-Sep-19 14:33|
|Re: Bacteria take off their coats!||145||Susan Doris||27-Sep-19 15:41|