Colin C. Hanfrey

Different polyamine pathways from bacteria have replaced eukaryotic spermidine biosynthesis in ciliates Tetrahymena thermophila and Paramecium tetaurelia

S. Ealick, A. Michael, K. Elliott, 2015, Molecular microbiology.

Independent evolutionary origins of functional polyamine biosynthetic enzyme fusions catalysing de novo diamine to triamine formation

A. Michael, R. Green, K. Elliott, 2011, Molecular microbiology.