TY - JOUR
T1 - Tubercle bacilli generate a novel cell wll associated pigment after long-term anaerobic culture
AU - Cunningham, Adam
AU - Ashton, Peter
AU - Spreadbury, Claire
AU - Lammas, David
AU - Craddock, Rachel
AU - Wharton, Christopher
AU - Wheeler, P
PY - 2004/1/1
Y1 - 2004/1/1
N2 - Many cases of tuberculosis result from reactivation of previously acquired latent infections. Models to study such persister forms often involve gradual depletion of oxygen during culture as poor aeration is a characteristic of non-progressive TB granulomas. Anaerobically cultured bacilli develop a thickened outer-most cell wall layer. Here, we analyzed this layer from anaerobically cultured Mycobacterium tuberculosis and Mycobacterium bovis BCG. By six weeks of anaerobiosis a pigment was detected at levels > 60-fold higher in anaerobic than aerobic bacilli. This pigment was responsible for the electron-dense appearance of the thickened cell wall layer and gave an electrospray mass spectrometry peak at 409 Da (M+Na)+ or (M+H)+. We termed this pigment APP1, anaerobically produced pigment 1, the first pigment identified in M. tuberculosis.
AB - Many cases of tuberculosis result from reactivation of previously acquired latent infections. Models to study such persister forms often involve gradual depletion of oxygen during culture as poor aeration is a characteristic of non-progressive TB granulomas. Anaerobically cultured bacilli develop a thickened outer-most cell wall layer. Here, we analyzed this layer from anaerobically cultured Mycobacterium tuberculosis and Mycobacterium bovis BCG. By six weeks of anaerobiosis a pigment was detected at levels > 60-fold higher in anaerobic than aerobic bacilli. This pigment was responsible for the electron-dense appearance of the thickened cell wall layer and gave an electrospray mass spectrometry peak at 409 Da (M+Na)+ or (M+H)+. We termed this pigment APP1, anaerobically produced pigment 1, the first pigment identified in M. tuberculosis.
KW - stationary phase
KW - Mycobacterium bovis BCG
KW - dormancy
KW - Mycobacterium tuberculosis
U2 - 10.1111/j.1574-6968.2004.tb09586.x
DO - 10.1111/j.1574-6968.2004.tb09586.x
M3 - Book/Film/Article review
C2 - 15158281
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
SN - 1574-6968
VL - 235
SP - 191
EP - 198
JO - FEMS Microbiology Letters
JF - FEMS Microbiology Letters
IS - 1
ER -