| Date | 2022.3.10 (10：00 - 11：00) |
|---|---|
| Venue | |
| Speaker | Dr. Seth Barribeau |
| Affiliation | University of Liverpool (U.K.) |
| Title | ◆Dr. Seth Barribeau (Lecturer, University of Liverpool, U.K.) ◆Title："Trypanosomatid-host interactions from the gut interface to global life-history” 〈Abstract〉 Trypanosomatids are parasitic organisms that infect animals and plants worldwide, some of which cause devastating human and livestock diseases. There are two distinct infection life-cycles in trypanosomatids; some species complete their entire life-cycle in a single host (monoxenous) while others infect two hosts (dixenous). Dixenous trypanosomatids are mostly vectored by insects, and the human trypanosomatid diseases are caused mainly by vectored parasites. While infection prevalence has been described for subsets of hosts and trypanosomatids, little is known about whether monoxenous and dixenous trypanosomatids differ in infection prevalence or how they interact with the insect host gut. In this lecture, I will discuss recent work using meta-analyses to synthesise published evidence of trypanosomatid infection prevalence. We find that monoxenous species are two-fold more prevalent than dixenous species across all hosts; that monoxenous trypanosomatids infecting bees are most prevalent and infection prevalence does not vary between wild and managed bees. To our knowledge, these results reveal for the first time, a fundamental difference in infection prevalence according to host specificity where vectored species suffer from lower infection prevalence as a result of a ‘jack of all trades, master of none’ style trade-off between the vector and subsequent hosts. I will also describe recent work developing the model bee trypanosomatid Crithidia bombi to visualize live infections in the gut. |
| Language | English |
| Intended for | Everyone is welcome to join. |
| Co-Organized by | Institute of Global Innovation Research, “LIFE SCIENCE” Sasaki Team Excellent Leader Development for Super Smart Society by New Industry Creation and Diversity |
| Contact | Institute of Global Innovation Research, Institute of Agriculture Assoc. Prof. Maki Inoue Email: makimaki(at)cc.tuat.ac.jp |
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