Abstract
Na.no.sa.li'na. Gr. masc. n.
nanos
dwarf; N.L. masc. adj.
salinus
salty; N.L. fem. n.
Nanosalina
a dwarf‐size salty organism.
The genus
Candidatus
Nanosalina was established based on a sequence from a metagenome recovered from the hypersaline Lake Tyrrell in Victoria, Australia.
Ca
. Nanosalina is phylogenetically affiliated with members of the
Candidatus
Nanohaloarchaeota branch (
Candidatus
Nanosalinicola corrig.,
Candidatus
Nanopetraeus corrig., and
Candidatus
Haloredivivus) of the archaeal DPANN superphylum. On the basis of fluorescence
in situ
hybridization, cells are ∼0.6 μm in diameter. Analysis of the ∼1.23 Mb genome of
Ca
. Nanosalina J07AB43 with 43.5% DNA G + C suggests that the organism possesses an aerobic, photoheterotrophic lifestyle. The high proportion of acidic amino acids of the predicted proteins suggests a “salt‐in” strategy for osmotic balance. Gene sequences affiliated with
Ca
. Nanosalina have been recovered from coastal salterns in Australia and California, USA.
DNA G + C content (mol%)
: 43.5 (genome sequence).
Type species
: Not assigned.
Taxonomic and Nomenclature Notes
According to the List of Prokaryotic names with Standing in Nomenclature (LPSN), the taxonomic status of the genus
Candidatus Nanosalina
is: preferred name (not correct name) (last update, February 2025)
*
.
LPSN classification:
Archaea
/
Nanobdellati
/
Candidatus Nanohalarchaeota
/
Candidatus Nanohaloarchaea
/
Candidatus Nanosalinales
/
Candidatus Nanosalinaceae
/
Candidatus Nanosalina
Candidatus Nanosalina
could not be recovered in GTDB
**
.
*
Meier‐Kolthoff
et al. (
2022
).
Nucleic Acids Res
,
50
,
D801
–
D807
; DOI:
10.1093/nar/gkab902
**
Parks
et al. (
2022
).
Nucleic Acids Res
,
50
,
D785
–
D794
; DOI:
10.1093/nar/gkab776