Search results
Results from the WOW.Com Content Network
Environmental factors influence rate of bacterial growth such as acidity (pH), temperature, water activity, macro and micro nutrients, oxygen levels, and toxins. Conditions tend to be relatively consistent between bacteria with the exception of extremophiles .
Therapies, such as hyperbaric oxygen therapy (HBOT), may also be used for severe clostridial tissue infections. HBOT increases oxygen delivery to infected tissues, creating an environment that inhibits the growth of anaerobic bacteria like C. perfringens. While not commonly used, HBOT can be beneficial in certain cases. [83]
Cellular respiration is a vital process that occurs in the cells of all [[plants and some bacteria ]]. [2] [better source needed] Respiration can be either aerobic, requiring oxygen, or anaerobic; some organisms can switch between aerobic and anaerobic respiration. [3] [better source needed]
Microbial metabolism is the means by which a microbe obtains the energy and nutrients (e.g. carbon) it needs to live and reproduce.Microbes use many different types of metabolic strategies and species can often be differentiated from each other based on metabolic characteristics.
As oxygen is present within a body at the beginning of decomposition, aerobic bacteria flourish during the first stages of the process. As the microbial population increases, an accumulation of gases changes the environment into anaerobic conditions which is consequently followed by a change to anaerobic bacteria . [ 4 ]
Most of the bacteria in and on the body are harmless or rendered so by the protective effects of the immune system, and many are beneficial, [4] particularly the ones in the gut. However, several species of bacteria are pathogenic and cause infectious diseases , including cholera , syphilis , anthrax , leprosy , tuberculosis , tetanus and ...
Many don’t realize that invisible chemicals leach from microplastics and full-sized plastic refuse left baking in the sun, disrupting aquatic ecosystems from the bottom up.A new study measured ...
Hydrogen-oxidizing bacteria are a group of facultative autotrophs that can use hydrogen as an electron donor. They can be divided into aerobes and anaerobes . The former use hydrogen as an electron donor and oxygen as an acceptor while the latter use sulphate or nitrogen dioxide as electron acceptors . [ 1 ]