Verisign's Role in .com. Every domain name is powered by a registry operator. As the registry operator for .com, Verisign enables the world to connect online with reliability and confidence, anytime, anywhere.
Agar plate. An agar plate is a Petri dish that contains a growth medium (typically agar plus nutrients) used to culture microorganisms or small plants like the moss Physcomitrella patens. Selective growth compounds may also be added to the media, such as antibiotics.
When grown on ordinary agar, the organism forms spherical smooth colonies about two to four millimeters in diameter. When grown on Hektoen enteric agar, colonies are bluish-green with black centres, indicating that the species does not ferment lactose (common to many Salmonella species).The use of Hektoen enteric agar is designed for detection of these types of bacteria. Figure 1.hen grown on Hektoen enteric agar, colonies are bluish-green with black centres, indicating that the species does not ferment lactose (common to many Salmonella species). The use of Hektoen enteric agar is designed for detection of these types of bacteria.