From: Growth kinetics and pathogenicity of Photorhabdus luminescens subsp. akhurstii SL0708
Parameter | Phase I | Intermediate phase | Phase II |
---|---|---|---|
NBTA colony culture | Greenish with light green-yellow halo. | Brown with small translucent zone surrounding the colony, it can be green or yellow. | Dark red, does not present translucent zone surrounding the colony. |
NBTA colony morphology | Mucous or creamy texture, convex elevation, entire colony margin, round, and shiny. | Mucous or creamy texture, translucent margin, burgundy center, convex elevation, entire colony margin, round, and shiny. | Sticky texture, high adhesiveness to culture media, flat, round, defined regular margin, opaque. |
Bioluminescence | Yes, evidenced in the dark. | Partial, it cannot be seen at simple eyesight in the dark. | Slight or absent, it cannot be seen at simple eyesight in the dark. |