Streptomyces leeuwenhoekii sp. nov., the producer of chaxalactins and chaxamycins, forms a distinct branch in Streptomyces gene trees. - Busarakam, Kanungnid; Bull, Alan; Girard, Geneviève; Labeda, David; Wezel, Gilles; Goodfellow, Michael (Antonie van Leeuwenhoek, 2014)