Chia-mei (Eli) Chang defends Ph.D.

Link

Eli successfully defended her Ph.D. dissertation on March 26, 2024. Congratulations on a great presentation of an excellent body of work. Title: “Influence of abiotic environmental factors on physiological responses and mixotrophy in freshwater and marine chrysophytes.”

Recent Publications

Link

  • Princiotta, S.D., A. VanKuren, C.E. Williamson, R.W. Sanders, M.S. Valiñas. 2023. Disentangling the role of light and nutrient limitation on bacterivory by mixotrophic nanoflagellates. Journal of Phycology 00:1-6, online June 2023. [doi:0.1111/jpy.13358]
  • Millette, N.C., R.J. Gast, J.Y. Luo, H.V. Moeller, K. Stamieszkin, K.H. Andersen, E.F. Brownlee, N. Cohen, S. Duhamel, S. Dutkiewicz, P.M. Glibert, M.D. Johnson, S.G. Leles, A.E. Maloney, G. McManus, N. Poulton, S.D. Princiotta, R.W. Sanders and S. Wilken. 2023. Mixoplankton and mixotrophy: Future research priorities. Journal of Plankton Research. fbad020. [doi:10.1093/plankt/fbad020]
  • Princiotta, S.D., NguyenT.** and R.W.  Sanders. 2023. High abundances and negligible grazing during winter by the mixotrophic chrysophyte Dinobryon. Fottea 23:201-207. [doi: 10.5507/fot.2022.020]
  • Grattepanche, J.-D., W.J. Jeffrey, R.J. Gast, R.W. Sanders. 2022. Diversity of microbial eukaryotes along the West Antarctic peninsula in austral spring. Frontiers in Microbiology 13:844856 [doi:10.3389/fmicb.2022.844856]
  • Sanders, R.W. 2021. Protists: Flagellates and Amoeba. in: Earth Systems and Environmental Sciences, Reference Module. Elsevier. doi: 10.1016/B978-0-12-819166-8.00079-7

Our second Antarctic expedition to the WAP

Link

Bob Sanders (TU), J.D. Grattepanche (TU), Nicole Millett (WHOI, now at VIMS), Wade Jeffrey (UWF) and Leila Harris (UWF) returned in December 2019 from another oceanographic expedition off the west coast of the Antarctic peninsula. This cruise on the Nathaniel B. Palmer was the second of two cruises to investigate the ecology and diversity of phagotrophic phytoplankton (mixotrophs). We consider it a success, though delays in the return of samples to the US and shutdown of out labs by the pandemic put us far behind schedule in our analyses. We were scheduled for another in April 2021, but the pandemic intervened there too, putting a halt to all US Antarctic expeditions. for the 2021 season.

Back from another Antarctic research expedition

Link

Bob Sanders was joined by Jay Diii Grattepanche and Chris Carnivale from Temple, Wade Jeffrey and Leila Harris from Western Florida University, and Nicole Millette from WHOI on an early Austral spring research cruise to the Western Antarctic Peninsula. Supported by NSF. Here’s a link to a few photos: Antarctica Oct to Dec 2019. Our cruise designation was “Mixotrophic Eukaryotes in Antarctica: Their Habitat, Environmental Adaptation & Diversity (MEATHEAD)”

Sanders, Gast, Jeffrey REMIXED Research Teams return from Antarctica

Link

J.D. Grattepanche (TU), Becky Gast (WHOI), Wade Jeffrey (UWF) and Ari Simmering (UWF) have recently returned from an oceanographic voyage off the west coast of the Antarctic peninsula. This cruise on the Laurence M. Gould was the first of two cruises to investigate the ecology and diversity of phagotrophic phytoplankton (mixotrophs). Check out the cruise through Becky’s blog – it’s on the right-hand column of her website: https://www2.whoi.edu/staff/rgast/

J.D. Grattepanche joins lab as Research Asst. Professor

Link

Jean-David Grattepanche, a broadly-experienced protistologist, has joined the lab to work on our recently funded NSF grant that includes new research curises to Antarctica. J.D. has combined the power of bioinformatics, ecology and evolution to study eukaryotic microbes, with a focus on the “SAR” clade (Stramenopila, Alveolata and Rhizaria; (Grattepanche, et al. 2018) in marine and freshwater settings. He moves to Philadelphia from the Smith College lab of Laura Katz.

Multi-author paper on acquired mixotrophy online August 2017

Link

Bob Sanders participated in writing a paper on the biogeography of protists that acquire the ability to photosynthesize via symbiosis or kleptoplasty.

Leles, S.G., A. Mitra, K.J. Flynn, D.K. Stoecker, P.J. Hansen, A. Calbet, G B. McManus, R.W. Sanders, D.A. Caron,  F. Not, G. M. Hallegraeff, P. Pitta, J.A. Raven, M.D. Johnson, P.M. Glibert, S. Våge. 2017. Oceanic protists with different forms of acquired phototrophy display diverse biogeographies and abundance. 2017. Proceedings of the Royal Society B 284: 20170664. [doi: 10.1098/rspb.2017.0664]