Haloquadratum

Haloquadratum walsbyiHaloquadraSquare Haloarchaeon of Walsby
Haloquadratum is a halophilic genus of the family Halobacteriaceae.wikipedia
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Halobacteriaceae

HalarchaeumHalarchaeum acidiphilumHalobacteriacaeae
Haloquadratum is a halophilic genus of the family Halobacteriaceae.
These diverse morphologies include rods in genus Halobacterium, cocci in Halococcus, flattened discs or cups in Haloferax, and other shapes ranging from flattened triangles in Haloarcula to squares in Haloquadratum, and Natronorubrum.

Archaea

archaeonarcheaarchaebacteria
This archaean, discovered in 1980 by A.E. Walsby in the Gavish Sabkha, a coastal hypersaline pool (sabkha) on the Sinai Peninsula in Egypt, was not cultured until 2004.
Archaea in the genus Haloquadratum such as Haloquadratum walsbyi are flat, square archaea that live in hypersaline pools.

A.E. Walsby

Anthony Edward WalsbyAnthony E. Walsby
This archaean, discovered in 1980 by A.E. Walsby in the Gavish Sabkha, a coastal hypersaline pool (sabkha) on the Sinai Peninsula in Egypt, was not cultured until 2004.
He is noted for his discovery of Haloquadratum walsbyi in brine ponds on the Sinai Peninsula in 1980.

Bittern (salt)

bitternbitterns
Further evaporation results in the precipitation of sodium chloride or halite, and then to a concentrated magnesium chloride brine termed bittern.
Bittern can be used to culture Haloquadratum archaea.

Haloarchaea

Halobacteriahalophilichalophilic Archaea
One of the more unusually shaped Haloarchaea is the "Square Haloarchaeon of Walsby".

Halophile

halophilichalophilesextreme salt concentrations
Haloquadratum is a halophilic genus of the family Halobacteriaceae.

Genus

generageneric namegeneric
Haloquadratum is a halophilic genus of the family Halobacteriaceae.

Family (biology)

familyfamiliessubfamily
Haloquadratum is a halophilic genus of the family Halobacteriaceae.

Sabkha

sebkhasabkha (landform)salt flat
This archaean, discovered in 1980 by A.E. Walsby in the Gavish Sabkha, a coastal hypersaline pool (sabkha) on the Sinai Peninsula in Egypt, was not cultured until 2004.

Sinai Peninsula

SinaiSinai DesertHistory of the Sinai Peninsula
This archaean, discovered in 1980 by A.E. Walsby in the Gavish Sabkha, a coastal hypersaline pool (sabkha) on the Sinai Peninsula in Egypt, was not cultured until 2004.

Egypt

EgyptianEGYArab Republic of Egypt
This archaean, discovered in 1980 by A.E. Walsby in the Gavish Sabkha, a coastal hypersaline pool (sabkha) on the Sinai Peninsula in Egypt, was not cultured until 2004.

Polyhydroxyalkanoates

polyhydroxyalkanoatePHApoly(hydroxyalkanoate)
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Granule (cell biology)

granulesgranulegranular
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Gas vesicle

filled with gasgas vacuolesgas-filled
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Vacuole

vacuolesvacuolarvacuolated
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Buoyancy

buoyantbuoyant forcefloat
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Aquatic ecosystem

aquatic lifeaquaticaquatic ecology
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Absorption (electromagnetic radiation)

absorptionabsorbedabsorb
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Photosynthesis

photosyntheticphotosynthesizephotosynthesizing
The cells typically contain polyhydroxyalkanoate (PHA) granules, as well as large numbers of refractile, gas-filled vacuoles which provide buoyancy in a watery environment and may help to position the cells to maximize light-harvesting.

Cell adhesion

adhesioncellular adhesioncell-cell adhesion
The cells may join with others to form fragile sheets up to 40 micrometres wide.

Micrometre

μmµmmicrometers
The cells may join with others to form fragile sheets up to 40 micrometres wide.

Brine

salt watersalt brinebrine water
H. walsbyi can be found anywhere in hypersaline waters.

Salt evaporation pond

salt panssalt workssalt pan
When sea water evaporates, high concentration and precipitation of calcium carbonate and calcium sulphate result, leading to a hypersaline sodium chloride-rich brine.

Calcium carbonate

CaCO 3 calcareouscalcium
When sea water evaporates, high concentration and precipitation of calcium carbonate and calcium sulphate result, leading to a hypersaline sodium chloride-rich brine.