Biology Seminars

Invited Guests' Talks and Research-In-Progress Internal Seminar Series

Biology Seminars are held Wednesdays, 12:10PM in the Biology building in room 320. There are two types of seminars are held: invited speaker seminar series and the research-in-progress seminars. Invited Speaker seminar series present leading investigators from across the nation to present their latest works. Whereas, the Research-In-Progress seminars showcase internal presentations about the science emanating from the Department of Biology faculty laboratories. 

Biology seminars are held Wednesdays, 12:10-1PM, in room 320 of the Department of Biology Building. We requests all participants to arrive no later than 12:05 to ensure no disruption of the guest speakers

Next Seminar - Wednesday

The Department of Biology Seminar continues this week. Location:Room 320 E.E Just Hall. Time: 12:10-1

 

Presenter: Selina Anosike

Title: Comparative Efficacy of Bacteriocinogenic Lactobacillus and Lactococcus spp Isolated from Cheese and Yogurt.

Abstract:In our lab we previously identified lactic acid bacteria (LAB) isolates from commercial yoghurt and cheese that exhibited broad-spectrum activity against several food spoilage and pathogenic bacteria such as Acinectobacter baumannii, Escherichia coli 0157:H7, Pseudomonas aeruginosa, Salmonella typhimurium, Proteus mirabilis, Enterobacter aerogenes, Proteus vulgaris, Klebsiella pneumoniae, Enterobacter cloacae, Streptococcus saprophyticus, Serratia marcescens, Micrococcus luteus and Staphylococcus aureus.  For my research we compare the bacteriocinogenic activity of these LAB isolates which comprises of Lactococcus lactis subsp.cremoris,   L. rhamnosus, L. paracasei subsp. tolerans, L. cremoris and L. parafarraginis. The LAB isolates may be novel strains with probiotic and biopreservative potential. Effort is underway to purify and characterize the bacteriocin(s).


Presenter: Jalisa Taylor

Title: Nitric Oxide dependent regulation of small RNAs involved in the Envelope Stress Response in Escherichia coli

Abstract: The Thompson laboratory focuses on nitric oxide and envelope stress in bacteria. Bacteria are exposed to many environmental and nutritional stresses in their quest to adapt and thrive in changing environments. Small RNA regulation under different physiological changes are the main-focus of my research project. The σE response to physiological stresses, is critical for promoting homeostasis in response to environmental changes that may occur resulting from abberent biogenesis of outer membrane proteins. The  σE response includes the transcription of three small RNA molecules: RybB, MicA, and MicL. We have preliminary unpublished work in our lab suggests that two of these small RNAs are also co-regulated by the nitric oxide sensing transcriptional regulator NsrR. However, it is unknown if NsrR is also regulating MicL. Therefore, my work in Dr. Thompson’s laboratory, will bring light to the regulation of small RNA MicL by NsrR.

Howard University Department of Biology Seminar Schedule

Date
February 5 Internal Seminar - Kevin White (former undergraduate student, now at UCSD)
February 12 Guest Speaker - Kadijah Dansby - Title: TBA
February 19 Dr. Corbett - NIH - Coronaviruses
February 26 Internal Seminar - Kotou Sangare (Thomas), Shifaa Alshammari (Ullah)
March 4 Internal Seminar - Selina Anosike (Eribo), Jalisa Taylor (Eribo)
March 11 Guest Speaker - Iman Sylvain, Ph.D. - Title: Impact of Water Damage on Microbial Communities
March 18 TBD
March 25 Internal Seminar - Madison Moore (Thomas), Daniel Koenemann (Burke)
April 1 Guest Speaker - Dinari Harris, PhD. - Title: TBD
April 8 Internal Seminar - Adebiyi Sobitan (teng), Swagota Roy (Duttaroy)
April 15 Internal Seminar - Brandyn White (Campbell), Michelle Fernando (Allen)