Measurement of metabolite formation in single living cells of Chlamydomonas reinhardtii using synchrotron Fourier-Transform Infrared spectromicroscopy.
We demonstrate the capability of synchrotron-based Fourier-Transform Infrared spectromicroscopy to detect metabolite formation in single, living cells of the unicellular algae Chlamydomonas reinhardtii. We show that the high brightness of the source provides a sufficient signal-to-noise ratio to detect small molecular species accumulating in a spot about 15 microm in size. Time resolved measurements are carried out on cells grown heterotrophically under low-light conditions to study the evolution of products of anaerobic metabolism. The formation of small molecular species, including ethanol and at least one carbonyl containing compound, can be detected with a time resolution of the order of one minute.
Canadian Light Source Inc, 101 Perimeter Road, Saskatoon, SK, Canada S7N 0X4.
Kira L
KL
Goff
Luca
L
Quaroni
Kenneth E
KE
Wilson
D002470:Cell Survival; D016825:Chlamydomonas reinhardtii / Q000166:cytology* / Q000378:metabolism*; D017550:Spectroscopy, Fourier Transform Infrared; D017356:Synchrotrons; D013997:Time Factors