Haloquadratum walsbyi

Hqr. walsbyimorphologieswalsbyi
Haloquadratum walsbyi is a species of archaea which was discovered in a brine pool in the Sinai peninsula of Egypt.wikipedia
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Archaea

archaeonarcheaarchaebacteria
Haloquadratum walsbyi is a species of archaea which was discovered in a brine pool in the Sinai peninsula of Egypt.
Archaea and bacteria are generally similar in size and shape, although a few archaea have very different shapes, such as the flat and square cells of Haloquadratum walsbyi.

Halobacteriaceae

HalarchaeumHalarchaeum acidiphilumHalobacteriacaeae
Some members have been known to live aerobically, as well as anaerobically, and they come in many different morphologies.

Haloquadratum

Haloquadratum walsbyiHaloquadraSquare Haloarchaeon of Walsby

Brine

salt watersalt brinebrine water
Haloquadratum walsbyi is a species of archaea which was discovered in a brine pool in the Sinai peninsula of Egypt.

Sinai Peninsula

SinaiSinai DesertHistory of the Sinai Peninsula
Haloquadratum walsbyi is a species of archaea which was discovered in a brine pool in the Sinai peninsula of Egypt.

Egypt

EgyptianEGYArab Republic of Egypt
Haloquadratum walsbyi is a species of archaea which was discovered in a brine pool in the Sinai peninsula of Egypt.

Sodium chloride

NaClsaltroad salt
It is noted for both its flat, square-shaped cells, and its unusual ability to survive in aqueous environments with high concentrations of sodium chloride and magnesium chloride.

Magnesium chloride

MgCl 2 magnesiumMgCl 2 ·6H 2 O
It is noted for both its flat, square-shaped cells, and its unusual ability to survive in aqueous environments with high concentrations of sodium chloride and magnesium chloride.

Binomial nomenclature

scientific namebinomial namebinomial authority
The species' genus name Haloquadratum literally translates from Greek and Latin as "salt square".

Classical compound

combining formscombining formneoclassical compound
The species' genus name Haloquadratum literally translates from Greek and Latin as "salt square".

Phototroph

photoautotrophphotoautotrophicphototrophy
Haloquadratum walsbyi is a phototrophic halophilic archaea.

Halophile

halophilichalophilesextreme salt concentrations
Haloquadratum walsbyi is a phototrophic halophilic archaea.

Haloarcula quadrata

H. quadrata
It was the only recognized species of the genus Haloquadratum until 1999 when Haloarcula quadrata was reported as recovered from a brine pool.

Microbiological culture

culturepure culturecultured
Attempts to cultivate them were unsuccessful until 2004 and resulted in the identification of haloarcula quadrata, another species of square archaea of the genus haloarcula, distinct from ''H.

Micrometre

μmµmmicrometers
The cells are large – 2 to 5 microns – but very thin – approximately 150 nanometers – and generally contain granules of polyhydroxyalkanoates.

Nanometre

nmnanometernanometers
The cells are large – 2 to 5 microns – but very thin – approximately 150 nanometers – and generally contain granules of polyhydroxyalkanoates.

Granule (cell biology)

granulesgranulegranular
The cells are large – 2 to 5 microns – but very thin – approximately 150 nanometers – and generally contain granules of polyhydroxyalkanoates.

Polyhydroxyalkanoates

polyhydroxyalkanoatePHApoly(hydroxyalkanoate)
The cells are large – 2 to 5 microns – but very thin – approximately 150 nanometers – and generally contain granules of polyhydroxyalkanoates.

Refraction

refractedrefractiverefract
They also hold a large number of refractive vacuoles filled with gas that ensure buoyancy in an aqueous environment, and may help to position the cells to maximize the reception of light.

Vacuole

vacuolesvacuolarvacuolated
They also hold a large number of refractive vacuoles filled with gas that ensure buoyancy in an aqueous environment, and may help to position the cells to maximize the reception of light.

Gas vesicle

filled with gasgas vacuolesgas-filled
They also hold a large number of refractive vacuoles filled with gas that ensure buoyancy in an aqueous environment, and may help to position the cells to maximize the reception of light.

Buoyancy

buoyantbuoyant forcefloat
They also hold a large number of refractive vacuoles filled with gas that ensure buoyancy in an aqueous environment, and may help to position the cells to maximize the reception of light.

Aqueous solution

aqueouswater solubilityaqueous solutions
They also hold a large number of refractive vacuoles filled with gas that ensure buoyancy in an aqueous environment, and may help to position the cells to maximize the reception of light.

Absorption (electromagnetic radiation)

absorptionabsorbedabsorb
They also hold a large number of refractive vacuoles filled with gas that ensure buoyancy in an aqueous environment, and may help to position the cells to maximize the reception of light.

Cell adhesion

adhesioncellular adhesioncell-cell adhesion
They can gather in sheets up to 40 μm wide, but the connections between the cells are fragile and can easily be broken.