Isolation and identification of Rhodosporidium toruloides R1 degrading N-acyl homoserine lactone

Abstract:

In the present study, a AHL-utilizing strain R1 was isolated and identified as the genus Rhodosporidium toruloides R1 by physi-biochemical approaches and 18S rDNA sequence analysis, and this strain was designated as R. toruloides R1. Results showed that R. toruloides R1 exhibited the ability to utilize and degrade the all N-acyl homoserine lactones tested in this study. Coculture of R. toruloides R1 with Erwinia carotovora subsp. Carotovora effectively inhibit the soft rot disease of patato caused by E. carotovora. To the best of our knowledge, this is the first report on AHL-degradation of yeast cells.