The future of sustainable human health and agriculture rests on our ability to view microbial evolution as part of the solution rather than the problem. BMTH Women's Suede Lace Up Oxford Pumps Round Toe Platform Chunky High Heel Casual Dress Oxfords shoesThe Koskella lab takes on this challenge by combining discovery-based science on plant microbiomes with hypothesis-driven experimentation. Our research examines host-microbe and microbe-microbe interactions by first identifying patterns in nature and then, in line with current theory where available,Beautiful - Fashion Women's Lace Up Tassel Round Toe Platform Oxford Pump Chunky High Heel Vintage Dress Oxfords shoesBeautiful - Fashion Womens Clear Strappy Block Heel Ankle Strap Adjustable Buckle Peep Toe Low Chunky Sandal Navoku Women's Fashion Cozy Anti-Skid Indoor House SlippersJINKUNL Women's Comfortable Furry Home Slippers Open Toe Indoor Outdoor Casual Flat Slide Sandals goldgenerating predictions to explicitly test in the laboratory using a combination of experimental evolution, microbial ecology approaches, Beautiful - Fashion Women's Oxford Loafers Low Heels Round Toe Patent Leather Bowknot Slip On Casual Flat Dress shoes Slip On Daily shoesand molecular biological techniques.
We focus primarily on how plant-microbiome, plant-pathogen, and bacteria-phage interactions occur, both as model systems for understanding fundamental principles and with the aim of leveraging these findings for design of novel disease management strategies. FANTURE Lightweight Women and Men Aqua Water shoes Quick-Dry Breather Sports Skin Barefoot Anti-Slip Multifunctional U4BSX001-R.black-44 45Soludos Women's Original Dali FlatWe integrate ecological and evolutionary thinking with cutting-edge microbiological and molecular approaches to gain insight to microbiome establishment and function, within-microbiome interactions, and the role that microbiota and phages play in shaping disease. For more information on ongoing research projects, look here.
The Koskella lab at our end-of-semester lab lunch (May 2019)
A brief introduction to the lab and our recent research:
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I am an evolutionary ecologist interested in how species interactions influence genetic diversity within populations, diversity between populations, and species diversity at the community level. By combining evolutionary theory on coevolution, population dynamics, and infection genetics,Fashion shoesbox Women's Military Ankle Combat Boots Lace up Mid Calf Faux Suede Winter Round Toe High Top Slip On Casual BootiesCobian Women's Nias Dress Sandal BlackLVYING Winter Mid Calf Booties Women Round Toe Slip-On Butterfly-Knot Height Increasing Warm BootsGome-z New Spring Women Pumps Pointed Toe Thin High Heel Stiletto Classic Pumps OL shoes Black White Lady Pumps OX196 I directly test the underlying assumptions and predicted outcomes of host-pathogen and microbial interactions through the lens of human health and agricultural sustainability.
My previous work was primarily focused on host – parasite coevolution; first between a smut fungus and a plant (e.g. ASO-SLING Women's Warm Slippers Velvet Plush Lining Memory Foam House Slipper Non-Slip Home shoes), then a trematode and a snail (e.g. Tamaris Women’s 25218-21 Hi-Top Trainers), and most recently between bacteriophage viruses and the bacteria they infect, which are themselves parasites of plants (e.g. if phages are locally adapted to bacteria, Spot On Womens Ladies Blocked Heel Ankle Bootsand PUMA Pulse XT Geo Womens Running Sneakers shoes). The types of fundamental questions I’ve address are:
1) How do pathogens/parasites adapt to better infect their hosts? And at what scale / speed are they capable of adapting?
Meaden, S., & Koskella, B. (2017). Adaptation of the pathogen, Pseudomonas syringae, Summer High Heel Sandals Women's Velcro Roman shoes Slope Heel Open Toe Sandals (color B, Size 6.0 US)BalaMasa Girls Hollow Out Leopard Pattern Lace Ornament Blend Materials Pumps-shoesduring experimental evolution on a native vs. alternative host plant. Molecular ecology, 26(7), 1790-1801.
Koskella, B. (2014). Bacteria-phage interactions across time and space: merging local adaptation and time-shift experiments to understand phage evolution. The American Naturalist, 184(S1), S9-S21.
Koskella, B., Thompson, J. N., Preston, G. M., & Buckling, A. (2011). Dreamstar Autumn Women Boots Flat Casual shoes Leather Ladies Martin Boots Ankle Boots Single shoesEasy Spirit Women's Sailors SandalLocal biotic environment shapes the spatial scale of bacteriophage adaptation to bacteria. The American Naturalist, 177(4), 440-451.
Greischar, M. A., & Koskella, B. (2007). A synthesis of experimental work on parasite local adaptation. Ecology Letters, 10(5), 418-434.
2) How do hosts respond to this adaptation (i.e. coevolve) and become more resistant to their local pathogens/parasites? T-JULY Summer Sandals for Women Casual Rubber Bowknot Beach Slipper Indoor Outdoor shoesCotton Slippers,Winter Unisex Home Indoor shoes, Fashion Silk Cotton Coral Fleece Anti-Slip Keep Warm SlipperAnd are they paying a significant cost for this evolved resistance?Women's Running shoes Mesh Textile Athletic Lace up shoes for WomenPeach Couture Womens Summer Embellished Platform Sandals.
Koskella, B., & Parr, N. (2015). The evolution of bacterial resistance against bacteriophages in the horse chestnut phyllosphere is general across both space and time. Phil. Trans. R. Soc. B, 370(1675), 20140297.
Meaden, S., Paszkiewicz, K., & Koskella, B. (2015). The cost of phage resistance in a plant pathogenic bacterium is context‐dependent. Evolution, 69(5), 1321-1328.
Koskella, B. (2013). Phage-mediated selection on microbiota of a long-lived host. Current Biology, 23(13), 1256-1260.
Koskella, B., Lin, D. M., Buckling, A., & Thompson, J. N. (2011).HUAN Barefoot shoes, Swim Yoga Beach Running Snorkeling Swimming Scuba Diving Socks, Water shoes for Adult Men & Women Quick-DryPeach Couture Mens Beach Flip Flops Textured Strappy Slip On Beach Sandals Grey 8 Mumeson Women Girls Lightweight Running shoes Animal Print Fashion SneakersMumeson Trendy Floral Print Women High Top Sneakers Platform shoes for Girls LadiesThe costs of evolving resistance in heterogeneous parasite environments. Proceedings of the Royal Society of London B: Biological Sciences, rspb20112259.
3) Can antagonistic coevolution lead to increased diversity? For example, do pathogens/parasites preferentially target common hosts (i.e. the hosts that are the most fit) and therefore impose a rare-host advantage?
Morella, N. M., Gomez, A. L., Wang, G., Leung, M. S., & Koskella, B. (2018). The impact of bacteriophages on phyllosphere bacterial abundance and composition. Molecular ecology, 27(8), 2025-2038.
Koskella, B., & Lively, C. M. (2009). Evidence for negative frequency‐dependent selection during experimental coevolution of a freshwater snail and a sterilizing trematode. Evolution: International Journal of Organic Evolution, 63(9), 2213-2221.
and 4) Does this coevolution among hosts and parasites matter to human health, agriculture, and conservation? Can we use our understanding about when and how pathogens and commensals evolve to design better treatments and to predict and prevent the spread of diseases?
Koskella, B., & Taylor, T. B. (2018). Multifaceted impacts of bacteriophages in the plant microbiome. Annual review of phytopathology, 56, 361-380.
Lin, D., & Koskella, B. (2015). Friend and foe: KCatsy Trendy Open Toe Ankle Strap Butterfly Stiletto Heel Sandals Women shoesSkechers Womens Madison Ave - My Town Fashion Sneakersfactors influencing the movement of the bacterium Helicobacter pylori along the parasitism–mutualism continuum. Evolutionary applications, 8(1), 9-22.
Meaden, S., & Koskella, B. (2013). Exploring the risks of phage application in the environment. Frontiers in microbiology, 4, 358.
So far, the body of evidence produced by the scientific community over decades of work suggests that parasites can evolve rapidly and specifically to infect their hosts, but that this doesn’t always mean they get more harmful or even better at infecting.Women's Bohemian Platform Sandals Rhinestone Bead Wedge shoes Thong SandalZHZNVX Women's PU Summer Sandals Stiletto Heel Black Red bluee There is also clear evidence that hosts respond by evolving increased resistance, and that this often comes at a cost such as decreased growth or reproduction. This ongoing coevolution, in which neither parasite nor host is winning the battle has been called ‘Red Queen’ dynamics, based on the idea from “Alice Through the Looking Glass” that you have to run as fast as you can just to stay in the same placeFheaven (TM) Women Mesh Flat Sneaker shoes Casual Outdoor shoes Platform Walking Sports shoesDress shoes for Women,Fheaven Women's Classic Comfortable Casual Cross Strap Slip-On Heel Sandals (5, Black).WeiPoot Women's Solid PU Kitten-Heels Pull-On Round-Toe Pumps-shoesSkechers Women's Cozy Campfire-Microfiber Slipper Boot with Bow, Natural, 7.5 M US At last these ideas are beginning to be incorporated into the design and use of drug treatments (sometimes referred to as Darwinian Medicine) and used to build predictive models of disease spread in our increasingly-connected world. My work has taken advantage of a very powerful approach to address these questions by experimentally evolving hosts and parasites in the laboratory, Betterluse Shallow Flats 2019 Summer Women Sandals Fashion Young Ladies Summer Women shoes Sweet Woman SandalsKyle Walsh Pa Women Stylish Flats Bowknot Lace Slip-on Ladies Soft Casual Breathable Ballet Flat shoestherefore controlling for all the other “noise” out there in nature (Women's House Slippers Comfort Cotton shoes Memory Foam Lining Anti Slip Knitted Washable Soft Indoor Outdoor).Women's Elegant Square Toe Low Block Heel Work shoes Pumps with LatticeCloudless Women's Martin Boots Flat Autumn Winter Belt Buckle Wild Short Boots However,Btrada Women Glitter Bohemia Flat Sandals Clip Toe Dress SandalsFOR U DESIGNS Athletic Tennis Soprts Sneaker Women Man Casual Walking shoes Dog Faces Cartoon Printed Flats I always try to go back to nature’s microcosm to find out whether what holds true in the lab can be used to explain what we see in the real world.LIURUIJIA Women's 18Cm Transparent Sexy Crystal High Heel Sandals LX-1SB-1