2. Gram staining - ALWAYS an IMPORTANT first step- determines Gram reaction, morphology and arrangement. *Be familiar with the definitive biochemical tests used to identify these organisms. For ...

Gram staining has been a cornerstone of microbiology ... differentiation without requiring any chemical processing steps, significantly streamlining microbiology analysis workflow.

The names themselves date back to 1884, when Danish bacteriologist Hans Christian Gram developed a staining procedure to view bacteria under the microscope. First, he applied a dye, called gentian ...