Pseudoalteromonas is a genus of marine bacteria. In 1995, Gauthier et al proposed Pseudoalteromonas as a new genus to be split from Alteromonas. The Pseudoalteromonas species that were described before 1995 were originally part of the genus Alteromonas, and were reassigned to Pseudoalteromonas based on their rRNA-DNA analysis.
The Pseudoalteromonadaceae are a small family of Pseudomonadota.
Alteromonas is a genus of Pseudomonadota found in sea water, either in the open ocean or in the coast. It is Gram-negative. Its cells are curved rods with a single polar flagellum.
Pseudoalteromonas piscicida is a marine bacterium. It is known to produce a quorum sensing molecule called 2-heptyl-4-quinolone (HHQ), which functions as a bacterial infochemical. Research into the effects of this infochemical on phytoplankton is currently being conducted by Dr. Kristen Whalen of Haverford College.
Agarase is an enzyme with systematic name agarose 4-glycanohydrolase. It is found in agarolytic bacteria and is the first enzyme in the agar catabolic pathway. It is responsible for allowing them to use agar as their primary source of carbon and enables their ability to thrive in the ocean.
Algicola is a genus in the phylum Pseudomonadota (Bacteria).
Pseudoalteromonas aurantia is an antibacterial-producing marine bacterium commonly found in Mediterranean waters. In 1979, Gauthier and Breittmayer first named it Alteromonas aurantia to include it in the genus Alteromonas that was described seven years earlier, in 1972 by Baumann et al. In 1995, Gauthier et al renamed Alteromonas aurantia to Pseudoalteromonas aurantia to include it in their proposed new genus, Pseudoalteromonas, which they recommended splitting from Alteromonas.
Pseudoalteromonas citrea is a yellow-pigmented marine bacterium that is antibiotic-producing and was isolated from Mediterranean waters off Nice. Originally named Alteromonas citrea, nearly two decades later it was reclassified as part of the Genus Pseudoalteromonas.
Pseudoalteromonas denitrificans is a marine bacterium.
Pseudoalteromonas distincta is a marine bacterium.
Pseudoalteromonas elyakovii is a marine bacterium.
Pseudoalteromonas espejiana is a marine bacterium.
Pseudoalteromonas issachenkonii is a marine bacterium which was isolated from the brown alga Fucus evanescens near the Kurile Islands.
Pseudoalteromonas luteoviolacea is a marine bacterium which was isolated from seawater near Nice.
Pseudoalteromonas rubra is a marine bacterium.
Pseudoalteromonas ulvae is a marine bacterium isolated from the alga Ulva lactuca at the intertidal zone near Sydney.
Pseudoalteromonas undina is a marine bacterium isolated from seawater off the coast of Northern California. It was originally classified as Alteromonas undina but was reclassified in 1995 to the genus Pseudoalteromonas.
Alteromonas macleodii is a species of widespread marine bacterium found in surface waters across temperate and tropical regions. First discovered in a survey of aerobic bacteria in 1972, A. macleodii has since been placed within the phylum Pseudomonadota and is recognised as a prominent component of surface waters between 0 and 50 metres. Alteromonas macleodii has a single circular DNA chromosome of 4.6 million base pairs. Variable regions in the genome of A. macleodii confer functional diversity to closely related strains and facilitate different lifestyles and strategies. Certain A. macleodii strains are currently being explored for their industrial uses, including in cosmetics, bioethanol production and rare earth mining.
κ-Carrageenase is an enzyme with systematic name κ-carrageenan 4-β-D-glycanohydrolase (configuration-retaining). It catalyses the endohydrolysis of (1→4)-β-D-linkages between D-galactose 4-sulfate and 3,6-anhydro-D-galactose in κ-carrageenans
