Bryant, D.A. and Frigaard, N.-U. Prokaryotic photosynthesis and phototrophy illuminated. Trends Microbiol. 2006, 14 (11): 488–96. PMID 16997562. doi:10.1016/j.tim.2006.09.001.
Anthony J. F. Griffiths ... Genetics and the Organism: Introduction. Griffiths, Anthony J. F.; Miller, Jeffrey H.; Suzuki, David T.; Lewontin, Richard C.; Gelbart, William M. (编). An Introduction to Genetic Analysis 7th. New York: W. H. Freeman. 2000. ISBN 0-7167-3520-2.