Browsing UMBC Department of Marine Biotechnology by Title
Now showing items 1-20 of 35
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Altered regulation of the glnA gene in glutamine synthetase mutants of Bacillus subtilis
(American Society for Microbiology, 1986-07-01)Expression of beta-galactosidase by Bacillus subtilis strains carrying transcriptional fusions of the glnA promoter region to the Escherichia coli lacZ gene was found to be regulated by the nitrogen source in glnA+ strains. ... -
Altered regulation of the glnRA operon in a Bacillus subtilis mutant that produces methionine sulfoximine-tolerant glutamine synthetase
(American Society for Microbiology, 1993-02)A Bacillus subfilis mutant that produced glutamine synthetase (GS) with altered sensitivity to DL-methionine sulfoximine was isolated. The mutation, designated glnA33, was due to a T- A-to-C- G transition, changing valine ... -
Anaerobic Ammonia-Oxidizing Bacteria and Related Activity in Baltimore Inner Harbor Sediment
(American Society for Microbiology, 2005-04)The discovery of bacteria capable of anaerobic ammonia oxidation (anammox) has generated interest in understanding the activity, diversity, and distribution of these bacteria in the environment. In this study anammox ... -
Characterization and abundance of anaerobic ammonia oxidizing (anammox) bacteria in biofilters of recirculating aquaculture systems
(BioMed Central Ltd, 2018-02-10)While biofilters are widely used to metabolize ammonia and other wastes in marine recirculating aquaculture systems, the ammonia-oxidizing bacterial and archaeal communities have not been characterized across a diversity ... -
Climate and season are associated with prevalence and distribution of trans-hemispheric blue crab reovirus (Callinectes sapidus reovirus 1)
(MEPS, 2020-08-13)Among the many Callinectes spp. across the western Atlantic, the blue crab C. sapidus has the broadest latitudinal distribution, encompassing both tropical and temperate climates. Its life history varies latitudinally, ... -
Draft Genome Sequence of Marine Bacillus sp. Strain ISO11, a Candidate Finfish and Shellfish Probiotic
(American Society for Microbiology, 2018-10-18)Bacillus sp. strain ISO11, a Bacillus cereus clade member isolated from the intestinal tract of Fundulus heteroclitus, possesses potential probiotic and antibacterial activity against Vibrio sp. pathogens. Antibacterial ... -
Draft Genome Sequence of the Oyster Larval Probiotic Bacterium Vibrio sp. Strain OY15
(American Society for Microbiology, 2014-10-02)We report the draft genome sequence of Vibrio sp. strain OY15, a Gram-negative marine bacterium isolated from an oyster (Crassostrea virginica) digestive tract and shown to possess probiotic activity. The availability of ... -
Draft Genome Sequence of the Shellfish Bacterial Pathogen Vibrio sp. Strain B183
(American Society for Microbiology, 2014-09-18)We report the draft genome sequence of Vibrio sp. strain B183, a Gram-negative marine bacterium isolated from shellfish that causes mortality in larval mariculture. The availability of this genome sequence will facilitate ... -
Draft Genome Sequence of Vibrio (Listonella) anguillarum ATCC 14181
(American Society for Microbiology, 2016-10-20)We report the draft genome sequence of Vibrio anguillarum ATCC 14181, a Gram-negative, hemolytic, O2 serotype marine bacterium that causes mortality in mariculture species. The availability of this genome sequence will add ... -
Effect of Diet on the Enteric Microbiome of the Wood-Eating Catfish Panaque nigrolineatus
(Frontiers, 2019-11-29)Wood is consistently found in high levels in the gastrointestinal tract of the Amazonian catfish Panaque nigrolineatus, which, depending on environmental conditions, can switch between xylivorous and detritivorous dietary ... -
Effect of sulfide on growth of marine bacteria
(Springer Nature Switzerland AG., 2014-03-09)Severe hypoxia leads to excess production of hydrogen sulfide in marine environments. In this study, we examined the effect of sulfide on growth of four facultative anaerobic marine bacteria in minimal media under anaerobic ... -
Effect of the Viral Hemorrhagic Septicemia Virus Nonvirion Protein on Translation via PERK-eIF2α Pathway
(MDPI, 2020-04-30)Viral hemorrhagic septicemia virus (VHSV) is one of the most deadly infectious fish pathogens, posing a serious threat to the aquaculture industry and freshwater ecosystems worldwide. Previous work showed that VHSV ... -
Examination of a Culturable Microbial Population from the Gastrointestinal Tract of the Wood-Eating Loricariid Catfish Panaque nigrolineatus
(MDPI, 2013-08-19)Fish play a critical role in nutrient cycling and organic matter flow in aquatic environments. However, little is known about the microbial diversity within the gastrointestinal tracts that may be essential in these ... -
First evaluation of resistance to both a California OsHV-1 variant and a French OsHV-1 microvariant in Pacific oysters
(BioMed Central, 2019-12-12)Background: Variants of the Ostreid herpesvirus 1 (OsHV-1) cause high losses of Pacific oysters globally, including in Tomales Bay, California, USA. A suite of new variants, the OsHV-1 microvariants (μvars), cause very ... -
The glycoprotein, non-virion protein, and polymerase of viral hemorrhagic septicemia virus are not determinants of host-specific virulence in rainbow trout
(BioMed Central Ltd, 2019-03-07)Background Viral hemorrhagic septicemia virus (VHSV), a fish rhabdovirus belonging to the Novirhabdovirus genus, causes severe disease and mortality in many marine and freshwater fish species worldwide. VHSV isolates ... -
Identification and characterization of the pckA gene from Staphylococcus aureus
(American Society for Microbiology, 1996-06)The Staphylococcus aureus pckA gene was identified and characterized. A pckA mutant lacked detectable phosphoenolpyruvate carboxykinase activity and grew poorly in the absence of glucose. Both enzymatic activity and pckA ... -
Induced Spawning of F1 Wreckfish (Hapuku) ¯ Polyprion oxygeneios Using a Synthetic Agonist of Gonadotropin-Releasing Hormone
(MDPI, 2019-07-08)Wild-caught hapuku ( ¯ Polyprion oxygeneios) spawn readily in captivity, but although first filial (F1) hapuku complete vitellogenesis, females fail to undergo oocyte maturation and spawn or produce poor quality eggs. ... -
Intensive oyster aquaculture can reduce disease impacts on sympatric wild oysters
(Inter-Research, 2018-12-13)Risks associated with disease spread from fish and shellfish farming have plagued the growth and public perception of aquaculture worldwide. However, by processing nutrients and organic material from the water column, ... -
Interaction of the Bacillus subtilis glnRA repressor with operator and promoter sequences in vivo
(American Society for Microbiology (ASM), 1992-02)In vivo dimethyl sulfate footprinting of the Bacillus subtilis ginRA regulatory region under repressing and derepressing conditions demonstrated that the GlnR protein, encoded by glnR, interacts with two sites situated within ... -
Investigation into the fungal diversity within different regions of the gastrointestinal tract of Panaque nigrolineatus, a wood-eating fish
(AIMS Press, 2017-09-04)The Amazonian catfish, Panaque nigrolineatus have several physiological adaptions enabling the scraping and consumption of wood (xylivory), facilitating a detritivorous dietary strategy. Composed of lignocellulose, wood ...