RT Journal Article SR Electronic(1) A1 KANAI, HARUHIKO A1 KOBAYASHI, TETSUO A1 AONO, RIKIZO A1 KUDO, TOSHIAKIYR 1995 T1 Natronococcus amylolyticus sp. nov., a Haloalkaliphilic Archaeon JF International Journal of Systematic and Evolutionary Microbiology, VO 45 IS 4 SP 762 OP 766 DO https://doi.org/10.1099/00207713-45-4-762 PB Microbiology Society, SN 1466-5034, AB The α-amylase-producing haloalkaliphilic archaeon Natronococcus sp. strain Ah-36T (T = type strain) was isolated previously from a Kenyan soda lake, Lake Magadi. Most cells of strain Ah-36T occurred in irregular clusters, and the colonies were orange-red. The polar lipids of this organism were composed of C20, C20 and C20, C25 derivatives of phosphatidylglycerol and phosphatidylglycerophosphate. Phosphatidylglycero-(cyclo-) phosphate, which is characteristic of Natronococcus occultus, was not detected. The complete nucleotide sequence of the 16S rRNA gene revealed that the closest relative of strain Ah-36T is N. occultus ATCC431011 (level of similarity, 96.4%), an extremely halophilic archaeon. However, strain Ah-36T did not exhibit a significant level of DNA homology to N. occultus ATCC43101T, which represents the only previously described species in the genus Natronococcus. We describe a new species for strain Ah-36T, for which we propose the name Natronococcus amylolyticus., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-45-4-762