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Harold J. Schreier
University of Maryland, Baltimore County
Molecular biologyBiochemistryDenitrificationBiologyMicrobiology
40Publications
16H-index
1,303Citations
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Publications 38
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#1Harold J. Schreier (UMBC: University of Maryland, Baltimore County)H-Index: 16
ABSTRACT The genome of Shewanella sp. strain ISO12, which was isolated from the intestine of wild-caught Fundulus heteroclitus, was sequenced and is reported here. Bioinformatic analysis revealed genes encoding the bacteriocin marinocine and potentially associated with probiotic activity. The genome sequence will assist in further identifying probiotic and other antibacterial processes.
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#1Ryan McDonaldH-Index: 4
#2Joy E. M. WattsH-Index: 18
Last. Harold J. SchreierH-Index: 16
view all 3 authors...
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#1Ryan McDonald (UMBC: University of Maryland, Baltimore County)H-Index: 4
#2Joy E. M. Watts (University of Portsmouth)H-Index: 18
Last. Harold J. Schreier (UMBC: University of Maryland, Baltimore County)H-Index: 16
view all 3 authors...
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 strategies. This is highly unusual among primary wood consumers and provides a unique system to examine the effect of dietary change in a xylivorous system. In this study, microbiome and predictive metagenomic analyses were performed for P. nigrolineatus fed either wood alone o...
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#1Marina Brailo (University of Dubrovnik)H-Index: 2
#2Harold J. Schreier (UMBC: University of Maryland, Baltimore County)H-Index: 16
Last. Jurica Jug-DujakovićH-Index: 8
view all 7 authors...
Abstract An experimental recirculating aquaculture system was constructed under ambient seawater conditions to compare microbial community diversity of nitrifying and denitrifying biofilters that were derived from a commercial inoculum used for aquarium applications. Next generation sequencing revealed distinct and diverse microbial communities in samples analyzed from the commercial inoculant and the denitrification and nitrification biofilters. In all samples, communities were represented by a...
4 CitationsSource
#1Harold J. Schreier (UMBC: University of Maryland, Baltimore County)H-Index: 16
ABSTRACT 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 activity is likely due to production of microcin and a zwittermicin A-like aminopolyol. The genome sequence will assist in identifying additional related processes.
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#1Caroline L. Marden (University of Portsmouth)H-Index: 1
#2Ryan McDonald (UMBC: University of Maryland, Baltimore County)H-Index: 4
Last. Joy E. M. WattsH-Index: 18
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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 is a difficult substrate to degrade and as yet, it is unclear whether the fish obtains any direct nutritional benefits from wood ingestion and degradation. However, there are numerous systems that rely on microbial symbioses to provide energy and other nutritional benefits for ho...
1 CitationsSource
#1Joy E. M. WattsH-Index: 18
#2Harold J. SchreierH-Index: 16
Last. Michelle S. HaleH-Index: 11
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As the human population increases there is an increasing reliance on aquaculture to supply a safe, reliable, and economic supply of food. Although food production is essential for a healthy population, an increasing threat to global human health is antimicrobial resistance. Extensive antibiotic resistant strains are now being detected; the spread of these strains could greatly reduce medical treatment options available and increase deaths from previously curable infections. Antibiotic resistance...
67 CitationsSource
#1Christopher J. Grim (FDA: Food and Drug Administration)H-Index: 26
#2Harold J. Schreier (UMBC: University of Maryland, Baltimore County)H-Index: 16
ABSTRACT 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 to our knowledge of diversity and virulence mechanisms of Vibrio anguillarum as well as other pathogenic Vibrio spp.
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#1Ryan McDonald (UMBC: University of Maryland, Baltimore County)H-Index: 4
#2Fan Zhang (UMCES: University of Maryland Center for Environmental Science)H-Index: 8
Last. Harold J. Schreier (UMBC: University of Maryland, Baltimore County)H-Index: 16
view all 4 authors...
The Amazonian catfish, Panaque nigrolineatus, consume large amounts of wood in their diets. The nitrogen-fixing community within the gastrointestinal (GI) tract of these catfish was found to include nifH phylotypes that are closely related to Clostridium sp., Alpha and Gammaproteobacteria, and sequences associated with GI tracts of lower termites. Fish fed a diet of sterilized palm wood were found to contain nifH messenger RNA within their GI tracts, displaying high sequence similarity to the ni...
9 CitationsSource
#1Harold J. Schreier (UMBC: University of Maryland, Baltimore County)H-Index: 16
#2Eric J. SchottH-Index: 9
ABSTRACT 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 this genome sequence will facilitate the study of the mechanisms of probiotic activity as well as virulence capacity.
1 CitationsSource
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