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                    U.S. DEPARTMENT OF AGRICULTURE
 Microbial and Chemical Food Safety: Wyndmoor, PA
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ARS Home Northeast Area Wyndmoor, Pennsylvania Eastern Regional Research Center Microbial and Chemical Food Safety People & Locations







Michael A Watson
                        Microbial and Chemical Food Safety

                        




                        
                        Biological Science Lab Technician
                        Phone: (302) 857-6406
                        
                        
                        Fax: (302) 857-6451(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            **Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Predator-prey interactions between Halobacteriovorax and pathogenic Vibrio parahaemolyticus strains: geographical considerations and influence of Vibrio hemolysins
                                                        

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Williams, H.N., Jones, J.L. 2023. Predator-prey interactions between Halobacteriovorax and pathogenic Vibrio parahaemolyticus strains: geographical considerations and influence of Vibrio hemolysins. Microbiology Spectrum. 11(4). https://doi.org/10.1128/spectrum.02353-23.Bacteriophages against Vibrio coralliilyticus and Vibrio tubiashii: Isolation, characterization and remediation of larval oyster mortalities
                                                        

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Madison, D., Soffer, N., Needleman, D.S., Soroka, D.S., Uknalis, J., Baranzoni, G., Church, K.M., Poison, S.W., Elston, R., Langdon, C., Sulakvelictze, A. 2021. Bacteriophages against Vibrio coralliilyticus and Vibrio tubiashii: Isolation, characterization and remediation of larval oyster mortalities. Applied and Environmental Microbiology. 87. https://doi.org/10.1128/AEM.00008-21.Bacteriophages against pathogenic vibrios in Delaware Bay oysters (Crassostrea virginica) during a period of high levels of pathogenic vibrio parahaemolyticus
                                                        

- (Peer Reviewed Journal)Richards, G.P., Chintapenta, L.K., Watson, M.A., Abbott, A.G., Ozbay, G., Uknalis, J., Oyelade, A., Parveen, S. 2019. Bacteriophages against pathogenic vibrios in Delaware Bay oysters (Crassostrea virginica) during a period of high levels of pathogenic vibrio parahaemolyticus. Food and Environmental Virology. https://doi.org/10.1007/s12560-019-09365-5.Whole genome sequences of two Pseudoalteromonas piscicida strains DE1-A and DE2-A, which exhibit strong antibacterial activity against Vibrio vulnificus

- (Peer Reviewed Journal)Richards, G.P., Needleman, D.S., Watson, M.A., Poulson, S.W. 2019. Whole genome sequences of two Pseudoalteromonas piscicida strains DE1-A and DE2-A, which exhibit strong antibacterial activity against Vibrio vulnificus. Microbiology Resource Announcements. 8:e01451-18.Complete genome sequence of Vibrio coralliilyticus RE22, a marine bacterium pathogenic toward larval shellfish
                                                        

- (Peer Reviewed Journal)Richards, G.P., Kingham, B., Shevchenko, O., Watson, M.A., Needleman, D.S. 2018. Complete genome sequence of Vibrio coralliilyticus RE22, a marine bacterium pathogenic toward larval shellfish. Microbiology Resource Announcements. 7(17):e01332-18. https://doi.org/10.1128/MRA01332-18.Factors affecting infection of corals and larval oysters by vibrio coralliilyticus
                                                        

- (Peer Reviewed Journal)Ushijima, B., Richards, G.P., Watson, M.A., Schubiger, C.B., Hase, C.C. 2018. Factors affecting infection of corals and larval oysters by vibrio coralliilyticus. PLoS One. https://doi.org/10.1371/journal.pone.0199475.Complete genome sequence of Pseudoalteromononas piscicida strain DE2-B, a bacterium with broad inhibitory activity toward human and fish pathogens

- (Peer Reviewed Journal)Richards, G.P., Needleman, D.S., Watson, M.A. 2017. Complete genome sequence of Pseudoalteromononas piscicida strain DE2-B, a bacterium with broad inhibitory activity toward human and fish pathogens. Genome Announcements. http://doi.org/10.1128/genomeA.00752-17.Mechanisms for pseudoalteromonas piscicida-induced killing of vibrios and other bacterial pathogens

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Needleman, D.S., Uknalis, J., Boyd, E., Fay, J.P. 2017. Mechanisms for pseudoalteromonas piscicida-induced killing of vibrios and other bacterial pathogens. Applied and Environmental Microbiology. doi: 10.1128/AEM.00175-17.Purification and host specificity of predatory halobacteriovorax isolated from seawater

- (Peer Reviewed Journal)Richards, G.P., Fay, J.P., Uknalis, J., Olanya, O.M., Watson, M.A. 2016. Purification and host specificity of predatory halobacteriovorax isolated from seawater. Applied and Environmental Microbiology. 82(3):922-927.Complete genome sequence of the larval shellfish pathogen Vibrio Tubiashii type strain ATCC 19109

- (Peer Reviewed Journal)Richards, G.P., Needleman, D.S., Watson, M.A., Bono, J.L. 2014. Complete genome sequence of the larval shellfish pathogen Vibrio Tubiashii type strain ATCC 19109. Genome Announcements. 2(6); e01252-14.  DOI: 10.1128/genomeA01252-14.Mortalities of eastern and pacific oyster larvae caused by the pathogens Vibrio coralliilyticus and Vibrio tubiashii

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Needleman, D.S., Church, K.M., Hase, C.C. 2014. Mortalities of eastern and pacific oyster larvae caused by the pathogens Vibrio coralliilyticus and Vibrio tubiashii. Applied and Environmental Microbiology. 81:292-297.Complete genome sequence for the shellfish pathogen Vibrio coralliilyticus RE98 isolated from a shellfish hatchery

- (Peer Reviewed Journal)Richards, G.P., Bono, J.L., Watson, M.A., Needleman, D.S. 2014. Complete genome sequence for the shellfish pathogen Vibrio coralliilyticus RE98 isolated from a shellfish hatchery. Genome Announcements. DOI:10.1128/genomeA.01253-14.Seasonal levels of the Vibrio predator Bacteriovorax in Atlantic, Pacific and Gulf Coast Seawater

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Boyd, F., Burkhardt Iii, W., Lau, R., Uknalis, J., Fay, J.P. 2013. Seasonal levels of the Vibrio predator Bacteriovorax in Atlantic, Pacific and Gulf Coast Seawater. International Journal of Microbiology. doi:10.1155/2013/375371.Resilience of norovirus GII.4 to freezing and thawing:implications for virus infectivity

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Meade, G.K., Hovan, G.L., Kingsley, D.H. 2012. Resilience of norovirus GII.4 to freezing and thawing:implications for virus infectivity. Food and Environmental Virology. 4:192-197.Fluorogenic membrane overlays to enumerate total coliforms, Escherichia coli, and total Vibrionaceae in shellfish and seawater

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A. 2010. Fluorogenic membrane overlays to enumerate total coliforms, Escherichia coli, and total Vibrionaceae in shellfish and seawater. Internationl Journal of Microbiology. Vol 2010, Article ID 910486, http://www.hindawi.com/journals/ijmb/2010/910486.html.SHEWANELLA AND PHOTOBACTERIUM IN OYSTERS AND SEAWATER FROM THE DELAWARE BAY

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Crane, E.J., Bushek, D., Burt, I. 2008. Shewanella and photobacterium in oysters and seawater from the delaware bay. Applied and Environmental Microbiology. 74(11):3323-3327.A SIMPLE FLUOROGENIC METHOD TO ASSESS VIBRIO CHOLERAE AND AEROMONAS HYDROPHILA IN WELL WATER

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A. 2006. A simple fluorogenic method to assess vibrio cholerae and aeromonas hydrophila in well water. American Journal of Tropical Medicine and Hygiene. 65(3):516-521DEVELOPMENT OF A SIMPLE AND RAPID FLUOROGENIC PROCEDURE FOR THE IDENTIFICATION OF VIBRIONACEAE FAMILY MEMBERS

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Parveen, S.A. 2005. Development of a simple and rapid fluorogenic procedure for the identification of vibrionaceae family members. Applied and Environmental Microbiology. 71:3524-3527.DETECTION OF VIBRIOS IN OYSTERS CRASSOSTRTEA VIRGINICA AND SEAWATER USING A NEW, RAPID, SIMPLE, AND QUANTITATIVE ENZYME-BASED ASSAY

- (Abstract Only)Richards, G.P., Watson, M.A., Burt, I.G., Bushek, D. 2005. Detection of vibrios in oysters crassostrtea virginica and seawater using a new, rapid, simple, and quantitative enzyme-based assay. (Abstract). Aquaculture America. Paper # 8128.GENOGROUP I AND II NOROVIRUSES DETECTED IN STOOL BY REAL-TIME REVERSE TRANSCRIPTION-PCR USING HIGHLY DEGENERATE, "UNIVERSAL" PRIMERS

- (Peer Reviewed Journal)Richards, G.P., Watson, M.A., Frankhauser, R.L., Monroe, S.S. 2004. Genogroup I and II noroviruses detected in stool by real-time reverse transcription-PCR using highly degenerate, "universal" primers. Applied and Environmental Microbiology. Vol.70. No.12.A SYBR GREEN REAL-TIME RT-PCR METHOD TO DETECT AND QUANTITATE NORWALK VIRUS IN STOOLS

- (Peer Reviewed Journal)RICHARDS, G.P., WATSON, M.A., KINGSLEY, D.H. A SYBR GREEN REAL-TIME RT-PCR METHOD TO DETECT AND QUANTITATE NORWALK VIRUS IN STOOLS. JOURNAL OF VIROLOGICAL METHODS. 2004. vol. 116. pg. 67-70.


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