%0 Journal Article %A KANAI, HARUHIKO %A KOBAYASHI, TETSUO %A AONO, RIKIZO %A KUDO, TOSHIAKI %T Natronococcus amylolyticus sp. nov., a Haloalkaliphilic Archaeon %D 1995 %J International Journal of Systematic and Evolutionary Microbiology, %V 45 %N 4 %P 762-766 %@ 1466-5034 %R https://doi.org/10.1099/00207713-45-4-762 %I Microbiology Society, %X 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. %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-45-4-762