''Nisaea'' is a genus in the phylum
Pseudomonadota
Pseudomonadota (synonym "Proteobacteria") is a major phylum of gram-negative bacteria. Currently, they are considered the predominant phylum within the domain of bacteria. They are naturally found as pathogenic and free-living (non- parasitic) ...
(
Bacteria
Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...
), which contains two
species, namely ''
N. denitrificans'' and ''
N. nitritireducens'', which were described in 2008.
[
]
Description
Like all Proteobacteria the two species stain Gram-negative
Gram-negative bacteria are bacteria that, unlike gram-positive bacteria, do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. Their defining characteristic is that their cell envelope consists ...
.(,[''cf''.][Bergey]) They were isolated from coastal, surface waters of the north-western Mediterranean Sea
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Eur ...
, specifically in February 2004 at the SOLA station located in the bay of Banyuls-sur-Mer
Banyuls-sur-Mer (; ) is a Communes of France, commune in the Pyrénées-Orientales Departments of France, department in southern France.
Geography Location
Banyuls-sur-Mer is located in the canton of La Côte Vermeille and in the arrondissemen ...
(42 2.99 N 3 0.89 E) at a depth of 3 metres.[
The cells are motile pleomorphic rods that are 2.9 μm long and 0.9 μm wide.][ When grown on marine agar medium, they form cream colonies (i.e. no pigmentation). Apart from standard genetic differences for species (98% 16S, 55% DNA-DNA), the two species differ in that Nisaea denitrificans can fully denitrify whereas Nisaea nitritireducens cannot only reduce nitrite.][
]
Etymology
The name ''Nisaea'' derives from:
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
feminine gender
In linguistics, a grammatical gender system is a specific form of a noun class system, where nouns are assigned to gender categories that are often not related to the real-world qualities of the entities denoted by those nouns. In languages wit ...
noun ''Nisaea'', nymph of the sea, referring to the marine origin (Mediterranean sea).[ ]Nicaea
Nicaea (also spelled Nicæa or Nicea, ; ), also known as Nikaia (, Attic: , Koine: ), was an ancient Greek city in the north-western Anatolian region of Bithynia. It was the site of the First and Second Councils of Nicaea (the first and seve ...
is in fact a sea nymph and daughter of the river-god Sangarius
The Sakarya (; ; ; ) is the third longest river in Turkey. It runs through the region known in ancient times as Phrygia. It was considered one of the principal rivers of Asia Minor (Anatolia) in Greek classical antiquity, and is mentioned in th ...
and Cybele
Cybele ( ; Phrygian: ''Matar Kubileya, Kubeleya'' "Kubeleya Mother", perhaps "Mountain Mother"; Lydian: ''Kuvava''; ''Kybélē'', ''Kybēbē'', ''Kybelis'') is an Anatolian mother goddess; she may have a possible forerunner in the earliest ...
.
Whereas the specific epithets, refer to:
* ''denitrificans'': Neo-Latin
Neo-LatinSidwell, Keith ''Classical Latin-Medieval Latin-Neo Latin'' in ; others, throughout. (also known as New Latin and Modern Latin) is the style of written Latin used in original literary, scholarly, and scientific works, first in Italy d ...
participle adjective ''denitrificans'' (from Neo-Latin
Neo-LatinSidwell, Keith ''Classical Latin-Medieval Latin-Neo Latin'' in ; others, throughout. (also known as New Latin and Modern Latin) is the style of written Latin used in original literary, scholarly, and scientific works, first in Italy d ...
v. denitrifico), denitrifying.[
* ''nitritireducens'': ]Neo-Latin
Neo-LatinSidwell, Keith ''Classical Latin-Medieval Latin-Neo Latin'' in ; others, throughout. (also known as New Latin and Modern Latin) is the style of written Latin used in original literary, scholarly, and scientific works, first in Italy d ...
noun ''nitris'' -''itis'', nitrite; Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
participle adjective ''reducens'', leading back, bringing back and (in chemistry) converting to a different oxidation state; Neo-Latin
Neo-LatinSidwell, Keith ''Classical Latin-Medieval Latin-Neo Latin'' in ; others, throughout. (also known as New Latin and Modern Latin) is the style of written Latin used in original literary, scholarly, and scientific works, first in Italy d ...
participle adjective ''nitritireducens'', reducing nitrite.[
]
See also
* Bacterial taxonomy
Bacterial taxonomy is subfield of taxonomy devoted to the classification of bacteria specimens into taxonomic ranks. Archaeal taxonomy are governed by the same rules.
In the scientific classification established by Carl Linnaeus, each species is ...
* Microbiology
Microbiology () is the branches of science, scientific study of microorganisms, those being of unicellular organism, unicellular (single-celled), multicellular organism, multicellular (consisting of complex cells), or non-cellular life, acellula ...
References
Bacteria genera
Rhodospirillales
{{Alphaproteobacteria-stub