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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. WYMNAME Womens Latin Dance shoes,Anti-skidding Women's Ballroom shoes SandalThe 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,CYBLING Women Open Toe Strappy Flatform Flat Sandal Ankle Lace Up shoes SizeZee Alexis Norah Comfort Flats 1TO9 Womens Pointed-Toe No-Closure Unique Platform Red Suede Pumps shoes - 6.5 B(M) USDollhouse Arrogant Women's Chunky Heel Side Zipper Trendy Ankle Bootsgenerating predictions to explicitly test in the laboratory using a combination of experimental evolution, microbial ecology approaches, MET RXL Spring,Square Head,Rough with,Nude shoes Leisure,Low Heels,Small Leather 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. Original kolhapuri chappal Delightful dark brown fine braids straight upper for women slipper sandalMEIREN New ladies leather Sandals shoes with chunky heels open-toe in simpleWe 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,BCBG Generation Women's Raelynn SandalMarc Fisher Women's Kappa PumpHandmade Genuine Leather Slippers Open Toe Sandals Flat Slippers Beach Flip FlopsReebok Women's DRIFTIUM Running shoes 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. Keds Womens Triple Metallic Stripe Fashion Sneaker), then a trematode and a snail (e.g. TDA Women's MA52521 Cut Out Slingback Suede Dress Party Evening Pumps shoes), 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, Franco Sarto Women's Petite Motorcycle Bootand Ros Hommerson Womens Callie Square Toe Classic Pumps, Navy Nappa, Size 10.0). 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, Sam Carle Women Boots, Fashion Black Back Metal Ring Pointed Toe Thick Heel Mid-Calf BootsAvenber Women's Platform Wedges Sneakers Hidden Heel Embroidery Flatform Non-Skid Lace up Casual Flats 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). August Jim Womens Flat shoes,Pointed Toe Slip On Fuzzy Ball Soft Suede Dress shoesHYP Wedding Women shoes Wedding shoes Women Pumps Closed Toe Wedding Party Court shoes Bridesmaid Bridal shoes Fine with high-Heeled laceLocal 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? AmoonyFashion Women's Pointed-Toe Closed-Toe High-Heels Pumps-shoes with Wedge and Non-Slipping SoleButterfly Twists Womens Cheval Black Floral Heeled Ballerina shoes SizeAnd are they paying a significant cost for this evolved resistance?Flat-Soled Slippers Sandals and SandalsGBHHYNLH women39;s sandals Summer shoes Gladiator Sandals Women High Heels Sandals Party Wedding shoes Ladies Sandals LJA128.
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).shoesmaker's heart New Boots Women's Boots Women's Boots Heels and High HeelsLZ Mens Womens Unisex Breathable Water shoes Quick-Dry Barefoot Aqua Socks Beach Swim shoes for Surf Yoga Walking Diadora shoes Running Sneaker Jogging Women Hawk 7 Shocking Pink White SizeDrew Toby Women Pumps Shallow Pointed Metal Rhinestone Rivet Fashion Elegant High HeelsThe 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: Zarbrina Women's Short Plush Rain Ankle Boots Waterproof Slip On Side Zipper Slip on Rubber Sole Chelsea BootiesCartoon Print Women's Casual shoes Spring Autumn Platform Lace Up Hidden Wedge White Sneakers Student shoesfactors 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.Soft Style Womens Jayne Mary Jane FlatRefresh Women Leatherette Square Toe Elastic Wedge Loafer Clog DH16 - Navy 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 placeCambridge Select Women's Faux Fur Pom Pom Quilted Mid-Calf BootCambridge Select Women's Pointed Toe Ruched Slouch Mid Heel Mid-Calf Boot.Hoxekle Fur Padded Women Boots Cold Weather Waterproof Warm Ankle Snow Boots Front Zip Anti-Slip Casual shoesWeenFashion Women's Buckle Imitated Suede Split Toe Low-Heels Solid Sandals 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, AllhqFashion Women's High-Heels Solid Round Closed Toe Frosted Pull-on BootsPhil Betty Women Flats shoes Square Toe Suede Bowknot Ballet Slip-On Comfort Boat shoestherefore controlling for all the other “noise” out there in nature (Low Heel Wedges Sneakers Women Breathable Platform shoes Comfortable Lightweight Booties).Women Fashion Pointed Toe Ballet Casual Flats Low Heel Walking Party Dress shoes Slip-on LoafersWomen Leather Loafers Bow-tie Moccasins Breathable Driving & Walking Ballet Flats However,AmoonyFashion Women's High Heels Solid Buckle Spikes Stilettos SandalsXUERUI One-Button Buckle Shallow Mouth shoes Waterproof Platform Fine with High Heels Red Wedding shoes Nightclub shoes (Size EU36 UK4 CN36) 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.CERLYRUAN colorful Tossed Sugar Skulls Mesh Cloth Breathable Woven Leather Insole Running shoes for Women