Texas Mold Remediation Contractor State Practice Exam

Which of the following is NOT a species of common toxigenic mold?

1. Stachybotrus

2. Aspergillus

3. Penicillium

4. Lactobacillus

The correct answer is: Lactobacillus

Lactobacillus is the correct response because it is a genus of bacteria, not a species of mold. It is commonly found in fermented foods and has beneficial properties, especially in gut health due to its probiotic nature. In contrast, Stachybotrus, Aspergillus, and Penicillium are all recognized as types of fungi and are known to include species that produce mycotoxins, which can be harmful to human health and are categorized as toxigenic molds. Understanding the classification between bacteria and fungi, as well as the properties of these particular organisms, is crucial in mold remediation practices and in assessing potential health risks associated with indoor mold growth.