title: Thermococcus guaymasensis sp. nov. and Thermococcus aggregans sp. nov., two novel thermophilic archaea isolated from the Guaymas Basin hydrothermal vent site.
abstract: Thermococcus strains TYST and TYT isolated from the Guaymas Basin hydrothermal vent site and previously described were compared by DNA-DNA hybridization analysis with the closest Thermococcus species in terms of physiology and nutritional aspects. On the basis of the new data and taking into consideration the molecular, physiological and morphological traits published previously, it is proposed that strains TYT and TYST should be classified as new species named Thermococcus aggregans sp. nov. and Thermococcus guaymasensis sp. nov., respectively. The type strain of T. aggregans is strain TYT (= DSM 10597T) and the type strain of T. guaymasensis is strain TYST (= DSM 11113T).
authors.affiliation: Department of Agrobiology and Agrochemistry, University of Tuscia, Viterbo, Italy. canganel@unitus.it
authors.forename: F
authors.initials: F
authors.lastname: Canganella
authors.forename: W J
authors.initials: WJ
authors.lastname: Jones
authors.forename: A
authors.initials: A
authors.lastname: Gambacorta
authors.forename: G
authors.initials: G
authors.lastname: Antranikian
mesh_terms: D019641:DNA, Archaeal / Q000737:chemistry; D004275:DNA, Ribosomal / Q000737:chemistry; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010140:Pacific Ocean; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D009626:Terminology as Topic; D019712:Thermococcus / Q000145:classification* / Q000166:cytology / Q000302:isolation & purification / Q000502:physiology; D014871:Water Microbiology
chemical_list: D019641:DNA, Archaeal; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S