Bacteria's H 2 Hunger: A Surprising Pattern

Acetogenic bacteria, known for turning carbon dioxide and hydrogen into acetate, have a unique way of gobbling up hydrogen. Scientists studied three types of these bacteria to see how fast they can consume hydrogen at different levels. Surprisingly, all three types followed a simple rule: the more hydrogen around, the faster they ate it, right up to very high levels. This isn't what scientists usually expect. They thought the bacteria would eat hydrogen slower as it got more abundant.To make sure their findings were correct, the scientists checked their results against older experiments. They even looked at five more bacteria types. They found that some bacteria were real hydrogen guzzlers, while others took their time. This tells us that the amount of dissolved hydrogen really matters when it comes to how fast these bacteria work in biotechnology systems.