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Arabidopsis (rockcress) is a genus in the family Brassicaceae. They are small flowering plants related to cabbage and mustard. This genus is of great interest since it contains thale cress, one of the model organisms used for studying plant biology and the first plant to have its entire genome sequenced. Changes in thale cress are easily observed, making it a very useful model.
Arabidopsis thaliana, the thale cress, mouse-ear cress or arabidopsis, is a small flowering plant native to Eurasia and Africa. A. thaliana is considered a weed; it is found along the shoulders of roads and in disturbed land.
Apetala 2(AP2) is a gene and a member of a large family of transcription factors, the AP2/EREBP family. In Arabidopsis thaliana AP2 plays a role in the ABC model of flower development. It was originally thought that this family of proteins was plant-specific; however, recent studies have shown that apicomplexans, including the causative agent of malaria, Plasmodium falciparum encode a related set of transcription factors, called the ApiAP2 family.
Novosphingobium is a genus of Gram-negative bacteria that includes N. taihuense, which can degrade aromatic compounds such as phenol, aniline, nitrobenzene and phenanthrene. The species N. aromativorans, which was first found in Ulsan Bay, similarly degrades aromatic molecules of two to five rings.
Deinococcus is one genus of three in the order Deinococcales of the bacterial phylum Deinococcus-Thermus highly resistant to environmental hazards. These bacteria have thick cell walls that give them Gram-positive stains, but they include a second membrane and so are closer in structure to Gram-negative bacteria. Deinococcus survive when their DNA is exposed to high doses of gamma and UV radiation. Whereas other bacteria change their structure in the presence of radiation, such as by forming endospores, Deinococcus tolerate it without changing their cellular form and do not retreat into a hardened structure. They are also characterized by the presence of the carotenoid pigment deinoxanthin that give them their pink color. They are usually isolated according to these two criteria. In August 2020, scientists reported that bacteria from Earth, particularly Deinococcus bacteria, were found to survive for three years in outer space, based on studies conducted on the International Space Station. These findings support the notion of panspermia, the hypothesis that life exists throughout the Universe, distributed in various ways, including space dust, meteoroids, asteroids, comets, planetoids or contaminated spacecraft.
Novosphingobium pentaromativorans is a species of high-molecular-mass polycyclic aromatic hydrocarbon-degrading bacterium. It is Gram-negative, yellow-pigmented and halophilic. With type strain US6-1T. Its genome has been sequenced.
Novosphingobium acidiphilum is a Gram-negative, rod-shaped, acidophilic, non-spore-forming and motile bacterium from the genus of Novosphingobium which has been isolated from the subsurface water of the lake Grosse Fuchskuhle in Brandenburg in Germany.
Novosphingobium barchaimii is a bacterium from the genus of Novosphingobium which has been isolated from soil which was contaminated with hexachlorocyclohexane from the Spolana Neratovice plant in the Czech Republic.
Novosphingobium chloroacetimidivorans is a Gram-negative, chloroacetamide-degrading and non-spore-forming bacterium from the genus of Novosphingobium which has been isolated from activated sludge from a wastewater treatment plant in Kunshan City in China.
Novosphingobium fluoreni is a Gram-negative, fluorene-degrading, rod-shaped and non-spore-forming bacterium from the genus of Novosphingobium which has been isolated rice seeds from Jiansanjiang in China.
Novosphingobium fuchskuhlense is a Gram-negative and rod-shaped bacterium from the genus of Novosphingobium which has been isolated from the lake Grosse Fuchskuhle in Brandenburg in Germany.
Novosphingobium indicum is a bacterium from the genus of Novosphingobium which has been isolated from deep-sea water from the Indian Ocean. Novosphingobium indicum hasd the ability to degrade polycyclic aromatic hydrocarbon.
Novosphingobium kunmingense is a Gram-negative, strictly aerobic and rod-shaped bacterium from the genus of Novosphingobium which has been isolated from a phosphate mine in Kunming in China.
Novosphingobium lentum is a Gram-negative, rod-shaped, non-spore-forming, psychrotolerant and non-motile bacterium from the genus of Novosphingobium which has been isolated from chlorophenol-contaminated groundwater in Finland. Novosphingobium lentum has the ability to degrade chlorophenol.
Novosphingobium malaysiense is a Gram-negative, rod-shaped and non-spore-forming bacterium from the genus of Novosphingobium which has been isolated from mangrove soil from the Tanjung Lumpur rive in Pahang in Malaysia.
Novosphingobium marinum is a Gram-negative, aerobic and short rod-shaped bacterium from the genus of Novosphingobium which has been isolated from sea water from the Pacific Ocean.
Novosphingobium rhizosphaerae is a Gram-negative, non-spore-forming and rod-shaped bacterium from the genus of Novosphingobium which has been isolated from the rhizosphere of the plant Zea mays in Tallassee in the United States.
Novosphingobium sediminicola is a Gram-negative, short rod-shaped, non-spore-forming and non-motile bacterium from the genus of Novosphingobium which has been isolated from freshwater sediments from the Lake Hakha in Korea.
Novosphingobium soli is a Gram-negative, rod-shaped and non-spore-forming bacterium from the genus of Novosphingobium which has been isolated from oil-contaminated soil near an oil refinery in Kaohsiung County in Taiwan.
Microbacterium yannicii is a Gram-positive, rod-shaped, microaerophilic and non-motile bacterium from the genus of Microbacterium which has been isolated from roots of the plant Arabidopsis thaliana in Golm in Germany.
References
- 1 2 Parte, A.C. "Novosphingobium". LPSN .
- 1 2 "Novosphingobium arabidopsis". www.uniprot.org.
- 1 2 Lin, S.-Y.; Hameed, A.; Liu, Y.-C.; Hsu, Y.-H.; Lai, W.-A.; Huang, H.-I.; Young, C.-C. (24 October 2013). "Novosphingobium arabidopsis sp. nov., a DDT-resistant bacterium isolated from the rhizosphere of Arabidopsis thaliana". International Journal of Systematic and Evolutionary Microbiology. 64 (Pt 2): 594–598. doi:10.1099/ijs.0.054460-0. PMID 24158946.