Cultures of a bacterial strain were incubated in a refrigerator (5°C), on a lab bench (22°C), in a 37°C incubator, and in a 50°C incubator.After incubation, there was no growth at 37°C and 50°C, slight growth in the refrigerator, and abundant growth on the lab bench top.Which term best describes this organism?

Question

Quizplus · Accepted Answer

The organism is able to grow at low temperatures (refrigerator) and also at room temperature (lab bench), indicating it is a psychrotroph. It does not grow at higher temperatures (37°C and 50°C), ruling out mesophile and thermophile. It also does not require carbon dioxide for growth, eliminating capnophile. The information given does not provide any evidence for or against the organism being a halophile or anaerobe.

Cultures of a Bacterial Strain Were Incubated in a Refrigerator