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Natrialbales
''Natrialbales'' is an order of halophilic, chemoorganotrophic archaea within the class Haloarchaea. The type genus of this order is ''Natrialba.'' The name ''Natrialbales'' is derived from the Latin term ''Natriabla,'' referring to the type genus of the order and the suffix "-ales", an ending used to denote an order. Together, ''Natrialbales'' refers to an order whose nomenclatural type is the genus ''Natrialba.'' Biochemical characteristics and molecular signatures Members are halophilic chemoorganotrophs and are mainly isolated from high-salt environments such as saline lakes, soda lakes and salted hides. Some members are motile. Morphology is variable, including rod, coccus or pleomorphic shapes. Majority of the class are able to grow optimally in alkaline pH and do not possess gas vesicles. The DNA G+C content for this order ranges between 60-70 mol%. This order can be reliably distinguished from other orders within the phylum Euryarchaeota by the presence of eight conse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloarchaea
Haloarchaea (halophilic archaea, halophilic archaebacteria, halobacteria) are a class of the Euryarchaeota, found in water saturated or nearly saturated with salt. Halobacteria are now recognized as archaea rather than bacteria and are one of the largest groups. The name 'halobacteria' was assigned to this group of organisms before the existence of the domain Archaea was realized, and while valid according to taxonomic rules, should be updated. Halophilic archaea are generally referred to as haloarchaea to distinguish them from halophilic bacteria. These microorganisms are among the halophile organisms, that they require high salt concentrations to grow, with most species requiring more than 2.0M NaCl for growth and survival. They are a distinct evolutionary branch of the Archaea distinguished by the possession of ether-linked lipids and the absence of murein in their cell walls. Haloarchaea can grow aerobically or anaerobically. Parts of the membranes of haloarchaea are pur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halobacteriales
In taxonomy, the Halobacteriales are an order of the Halobacteria, found in water saturated or nearly saturated with salt. They are also called halophiles, though this name is also used for other organisms which live in somewhat less concentrated salt water. They are common in most environments where large amounts of salt, moisture, and organic material are available. Large blooms appear reddish, from the pigment bacteriorhodopsin. This pigment is used to absorb light, which provides energy to create ATP. Halobacteria also possess a second pigment, halorhodopsin, which pumps in chloride ions in response to photons, creating a voltage gradient and assisting in the production of energy from light. The process is unrelated to other forms of photosynthesis involving electron transport; however, and halobacteria are incapable of fixing carbon from carbon dioxide. Halobacteria can exist in salty environments because although they are aerobes they have a separate and different way of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloferacales
''Haloferacales'' is an order of halophilic, chemoorganotrophic or heterotrophic archaea within the class Haloarchaea. The type genus of this order is ''Haloferax.'' The name ''Haloferacales'' is derived from the Latin term ''Haloferax,'' referring to the type genus of the order and the suffix "-ales," an ending used to denote an order. Together, ''Haloferacales'' refers to an order whose nomenclatural type is the genus ''Haloferax.'' Biochemical Characteristics and Molecular Signatures Members are halophiles and can be chemoorganotrophs or heterotrophs and are isolated from high-salt environments such as marine solar salterns and the Dead Sea. Some members are motile and contain gas vesicles. Morphology is variable, including rod, coccus or flat square shapes. Members of this order grow optimally in neutral pH. The DNA G+C content for this order ranges between 55-66 mol%. This order can be reliably distinguished from other Halobacteria by the presence of five conserved signatu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natronobacterium
In taxonomy, ''Natronobacterium'' is a genus of the Natrialbaceae.See the NCBIbr>webpage on Natronobacterium Data extracted from the A member of the domain Archaea, it is both an extreme halophile and alkaliphile, thriving at an optimum saline concentration of 20% and optimum pH of 10. Taxonomy As of 2022, there are 2 species described in this genus. ;Proposed species * ''Natronobacterium chahanensis'' and ''Natronobacterium innemongoliae'' are proposed names for strains isolated from soda lakes in China. As of 2022, the descriptions from 1989 (''N. chahanensis'')Page ''Species: Natronobacterium chahanensis'' on and 1997 (''N. innemongoliae'')Page ''Species: Natronobacterium innemongoliae'' on are not validly published. ;Species formerly placed in this taxon. * ''Natronobacterium magadii'', now ''Natrialba magadii In taxonomy, ''Natrialba'' is a genus of the Natrialbaceae. The genus consists of many diverse species that can survive extreme environmental niches, especi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halopiger
''Halopiger'' is a genus of archaeans in the family Natrialbaceae ''Natrialbales'' is an order of halophilic, chemoorganotrophic archaea within the class Haloarchaea. The type genus of this order is ''Natrialba.'' The name ''Natrialbales'' is derived from the Latin term ''Natriabla,'' referring to the type gen ... that have high tolerance to salinity. Species The following species are classified in the genus ''Halopiger'': *'' Halopiger aswanensis'' Hezayen, Gutiérrez, Steinbüchel, Tindall and Rehm, 2010 *'' Halopiger salifodinae'' Zhang, Meng, Zhu and Wu, 2013 *'' Halopiger thermotolerans'' Minegishi et al., 2017 *'' Halopiger xanaduensis'' Gutierrez et al., 2007 ;Species formerly placed in this taxon * ''Halopiger salifodinae'', now '' Natrinema salifodinae'' References Further reading Scientific journals * * * * Scientific books * Scientific databases External links Archaea genera {{archaea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natronorubrum
''Natronorubrum'' is a genus in the family Halobacteriaceae.See the NCBI The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...br>webpage on Natronorubrum Data extracted from the References Further reading Scientific journals * * * * Scientific books * External links Archaea genera Halobacteria {{archaea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natronolimnobius
''Natronolimnobius'' (common abbreviation ''Nln.'') is a genus of the Natrialbaceae.See the NCBI The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...br>webpage on Natronolimnobius Data extracted from the Taxonomy As of 2022, ''Natronolimnobius'' is a monotypic genus. ;Species formerly placed in this taxon * ''Natronolimnobius aegyptiacus'', now '' Natrarchaeobaculum aegyptiacum'' * ''Natronolimnobius innermongolicus'', now '' Natronolimnohabitans innermongolicus'' * ''Natronolimnobius sulfurireducens'', now '' Natrarchaeobaculum sulfurireducens'' References Further reading Scientific journals * * Scientific books * Scientific databases External links Archaea genera Taxa described in 2005 Monotypic archaea genera {{archaea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natronococcus
In taxonomy, ''Natronococcus'' is a genus of the Natrialbaceae. Description and significance This haloalkaliphilic archaeon is in the same family as microorganisms like '' Halobacterium''. Study of ''Natronococcus'' continues to explore what enzymes are present in order to survive in these conditions, especially since there has not been much literature about enzymes of haloalkaliphiles. Genome structure The G + C content for the major chromosome is 64.0% while the minor component has a 55.7% content. The approximate size of the plasmid is 144 kbp. Cell structure and metabolism ''Natronococcus'' is a heterotrophic, aerobic organism that can use sugars as an energy source to stimulate growth. It can fix nitrogen from casamino acids and reduces nitrates to nitrites. Cells are non-motile and occur in irregular clusters, pairs, and single cells. The cell is coccoid in shape and 1–2 micrometres in diameter. colonies are pale brown and circular. Ecology ''N. occultus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halobiforma
''Halobiforma'' (common abbreviation: ''Hbf.'') is a genus of halophilic archaea of the family Natrialbaceae.See the NCBI The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...br>webpage on ''Halobiforma'' Data extracted from the References Further reading Scientific journals * * Scientific books * Scientific databases External links Archaea genera {{archaea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natrinema
''Natrinema'' (common abbreviation ''Nnm.'') is a genus of the Natrialbaceae ''Natrialbales'' is an order of halophilic, chemoorganotrophic archaea within the class Haloarchaea. The type genus of this order is ''Natrialba.'' The name ''Natrialbales'' is derived from the Latin term ''Natriabla,'' referring to the type gen .... Taxonomy As of 2022, there are 18 species validly published in the genus ''Natrinema''. ''Natrinema'' is related to the genus '' Haloterrigena'', established in 1999, resulting in confusion about taxon limits and several species apparently being assigned to the wrong genus. Based on phylogenomic analysis, eight species from '' Haloterrigena'' as well as '' Halopiger salifodinae'' were transferred to ''Natrinema'' in 2022. References Further reading Scientific journals * * * * Scientific books * Scientific databases External links Archaea genera Taxa described in 1998 {{archaea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natrialba
In taxonomy, ''Natrialba'' is a genus of the Natrialbaceae. The genus consists of many diverse species that can survive extreme environmental niches, especially they are capable to live in the waters saturated or nearly saturated with salt (halophiles). They have certain adaptations to live within their salty environments. For example, their cellular machinery is adapted to high salt concentrations by having charged amino acids on their surfaces, allowing the cell to keep its water molecules around these components. The osmotic pressure and these amino acids help to control the amount of salt within the cell. For instance, ''N. magadii'' is an aerobic chemoorganotrophic, dual extremophile requiring alkaline conditions and hypersalinity for optimal growth. Those harsh conditions resulted in changed composition of charged amino acids in the proteins (average isoelectric point is only 4.64, whereas other organisms average is 6.5) with almost all proteins being highly acidic. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halovivax
In taxonomy, ''Halovivax'' is a genus of the Natrialbaceae.See the NCBIbr>webpage on Halovivax Data extracted from the Some species of ''Halovivax'' are halophiles and have been found in Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...'s Aran-Bidgol hypersaline lake. References Further reading Scientific journals * * * * Scientific books * Scientific databases External links Archaea genera Euryarchaeota Taxa described in 2006 {{Euryarchaeota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |