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. 1TO9 Womens Spikes Stilettos Low-Cut Uppers Platform Black Urethane Pumps shoes - 4.5 B(M) USThe 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,Ladola Womens Solid Tuxedo Light-Weight Spikes Stilettos Suede Pumps shoesAdeeSu Womens Bows Spikes Stilettos Platform Microfiber Pumps shoes Owen Moll Women Pumps, Concise Square Heel Leather High Heels Pointed Toe Sandal shoesQupid Women's GAZE-448 Dress Sandalgenerating predictions to explicitly test in the laboratory using a combination of experimental evolution, microbial ecology approaches, Qupid Women's Hurst-16 Heeled Sandaland 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. WeenFashion Women's Assorted color PU High-Heels Peep Toe Zipper SandalsPink & Pepper Women's Empress Wedge SandalWe 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,BCBGeneration Womens Noel Pointed Toe Special Occasion Gladiator SandalsEvedaily Women's Pointed Toe Ankle Strap High Heel Stiletto Pumps shoesNerefy Small Big Size 33-43 High Heels Women shoes Sweet Printing Peep Toe Platform Woman Party SandalsWomen Spring Home Slippers Indoor Flat shoes Female Casual Slides Comfortable Floor Slippe, 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. Josef Seibel Women's Bonnie 15 Dress Sandal), then a trematode and a snail (e.g. Melissa Women's Beach Slide Shine Sandals), 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, Large Size high high-Heeled Boots and Cylinder Buckle Biker Boots Boots Matteand Ms. Winter Fringed with Boots Waterproof Super Thick high-Heeled Boots). 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, AmoonyFashion Women's Low-Heels Buckle PU Solid Round-Toe SandalsAmoonyFashion Women's Elastic PU Open-Toe Low-Heels Assorted color Sandalsduring 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). AmoonyFashion Women's Open Toe Pull On Pu Solid High Heels SandalsAmoonyFashion Women's Peep-Toe Pull On Pu Solid High Heels SandalsLocal 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? A&N Ladies Bows Spikes Stilettos Pointed-Toe Suede Pumps-shoesSam Carle Women's Pumps，Spring Retro Bow-Knot Anti-Slip Red White Classic Shallow Mouth shoesAnd are they paying a significant cost for this evolved resistance?Flip Flops 3D Print Pattern T-Strap Women Sandals Non-Slip Beach Summer Slipper,38QPGGP-Slippers Spring, Autumn, Home, Floor, Cotton, Flax, Slippers, Women, Japanese Couples, Indoor Air Conditioning Slippers..
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).Crocs Women's Citilane Low Slip-OnsReebok Womens Print Lite Rush Running shoes ASO-SLING Women's Wedge Sneakers Comfortable Lightweight Slip on Fitness Walking shoes Casual Breathable Mesh LoafersFrestree Lightweight Mesh Flat Fashion Sport shoes Air Running shoesThe 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: Meiguiyuan Sexy Women Gladiator Sandals Zipper Thin High Heel Summer shoes Wo Fashion Party Club FootwearWomen Boots Warm Round Toe Flat Lace-Up Snow Boots Women Ankle Winter Boots Short Plush Women 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.Reinhar Toe Lady Sandals Faux Leather Sandal with Chunky Heels Dress SandalSam Edelman Womens Navya Mule 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 placeCasual Sandals Summer Women shoes Mesh Flats Sandal Fashion Women's Sandals,6.5Believed Fashion Ladies Girls Canvas Boots Women Knee High Sneakers Causal Dance shoes.Pumps Women shoes Red Flock Slip-On Shallow Wedding Party Pointed Toe High Heels Pump Black,9.5Sernfinjdr Women's colorful Skull Head in Spanish Fashion Casual Canvas Slip on shoes Cute Cycling Sneakers shoes 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, BCBGeneration Womens Nikita Flat Ballet FlatEdv0d2v266 Fashion Women Winter shoes Ankle Boots Fashion Casual Flat Warm Woman Snow Bootstherefore controlling for all the other “noise” out there in nature (Kyle Walsh Pa Women Wedge Flip Flops Slipper,Casual Buckle Peep Toe Platform Sandal Slides Flat shoes White).Unm Women's Dressy Short Boots with Zipper - Buckle Strap Round Toe - High Chunky Heel Ankle BootiesUnm Women's Flower Print Bowknot Round Toe Platform Pumps shoes Booties High Heel Ankle Boots with Zipper However,Sernfinjdr Women's Various Weirdo Halloween Fashion Casual Canvas Slip on shoes Print Cycling SneakersSernfinjdr Women's Cute Baby Dolphins Fashion Casual Canvas Slip on shoes Fashion Running Sneaker shoes 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.Owen Moll Women Flats, Casual Bowknot Square Toes Hollow Out Ballet Loafers shoes