ml

Search


Resource Type
 Video (49)
 Image (454)
 Animation (133)
 Protocol (41)
Curriculum Archive (85)
Tags
 Cell Biology (253)
 Genetics (81)
Humans (372)
 Environment (274)
 Diversity (108)
 Teaching (367)
Banner

Indole test on Escherichia coli and Klebsiella pneumoniae Send Print

  Votes (0) | Hits (9232) | Comments (0)
Created: Friday, 01 January 2010
Last update: Wednesday, 28 July 2010
Library Object
Figure: Preview
Downloadable File
Indole test on Escherichia coli and Klebsiella pneumoniae
Description
FIG. 2. A positive and a negative result from an indole test done in tryptone broth. The positive result given by Escherichia coli in the positive control (tube 1) and the test (tube 2) is indicated by the red layer at the top of the tube after the addition of Kovács reagent. The negative result given by Klebsiella pneumoniae in the negative control is indicated by the lack of color change in the top of the tube after the addition of Kovács reagent. (Shashidhar Vishwanath, Kasturba Medical College, Karnataka, India)