Fresh
plate bacterial cultureswere maintained in solid Tryptic Soy Agar medium
(TSA; Merck, Darmstadt, Germany) at 4 °C. Before each assay, one
isolated colony was aseptically transferred to 10 mL of Tryptic Soy
Broth medium (TSB; Merck, Darmstadt, Germany) and was grown
overnight at 25 °C. An aliquot of this culture (100 μL)