Shiio and Sano (1969) investigated the use of prototrophic revertants of __________ for lysine production.
(a) C. glutamicum
(b) B. flavum
(c) S. cerevisiae
(d) S. typhi
This question was addressed to me during an online exam.
My enquiry is from Improvement of Industrial Microorganisms in chapter The Isolation, Preservation and Improvement of Industrial Microorganisms of Fermentation Technology