1. MARÍA INÉS LAPAZ is a PhD student at Facultad de Química, Universidad de la República, and teaches microbiology at ANEP-Universidad de la República, Montevideo 11800, Uruguay; e-mail: mlapaz@fq.edu.uy.
2. ESTEFANIA JUAREZ CISNEROS is an undergraduate researcher at California State University Bakersfield, Bakersfield, CA 93311; e-mail: ejuarez16@csub.edu.
3. MARÍA JULIA PIANZZOLA is a Professor at Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay; e-mail: mpianzzo@fq.edu.uy.
4. ISOLDE M. FRANCIS (corresponding author) is an Assistant Professor at California State University Bakersfield, Bakersfield, CA 93311; e-mail ifrancis@csub.edu.