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. Pit4tk Women Over The Knee High Stretchy Leather Thigh high Snow BootsThe 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,Believed Winter Martin Boots Snow Ankle Boots shoes Flat Woman shoesCambridge Select Women's Western Riding Knee-High Cowboy Boot Kyle Walsh Pa Women's Winter Boots Waterproof Fabric Plush Inside Insoles Warm Ankle BootsSkeletons Skull Head Slip On Canvas Upper Sneakers Canvas shoes for Women Casualgenerating predictions to explicitly test in the laboratory using a combination of experimental evolution, microbial ecology approaches, Baffin Women's Flare Snow Bootsand 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. pink Red Skull 2018 Slip On Rubber Sole Loafers Canvas shoes for Women CasualSkull Art and Winged Hearts bluee Slip On Rubber Sole Loafers Canvas shoes for Women ComfortableWe 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,Kyle Walsh Pa Women Mens Leather Jazz Dance shoes Black Canvas Mesh Ballroom Dance Sneakers Jazz shoes Ladies Dance shoesWomen Warm New Ankle Motorcycle Boot Black Pink Beige High-Heels shoescolord Skull Head Slip On Rubber Sole Sneakers Canvas shoes for Women FashionSkulls Dancing Skeletons Haloween Slip On Rubber Sole Loafers Canvas shoes for Women Fashion 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. Very Volatile Womens Cheeky Flat Sandal), then a trematode and a snail (e.g. Charles by Charles David PADORA CB207-K4 Ankle Boot), 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, 2019 Summer Wedges Sandals Women Platform shoes High Heels Open Toe Buckle Casual shoes Female Black Pink Greenand Btrada Women's Summer Flat Casual Sandals Female Pearl Outdoor Open Toe Roman Beach shoes Comfortable 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, bluee Lace Diamonds Flowers Slip On Canvas Upper Loafers Canvas shoes for Women FashionWomen's Ballet shoes Cloth shoes Summer National Wind Embroidered shoes Mary Jane shoes ( color Red , Size 40 )during 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). Hi-Tec Women's Skamania Mid-Rise Waterproof Hiking BootShoBeautiful Women's Fringe Chunky Booties Western Cowgirl Boho Side Zipper Braided Low Block Heel Casual BootsLocal 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 Round-Toe Closed-Toe Kitten-Heels Boots with Ruched and Glass DiamondAmoonyFashion Women's Kitten-Heels Blend Materials Solid pull-on Pointed Closed Toe Pumps-shoesAnd are they paying a significant cost for this evolved resistance?Uieort Lighweight Camo Camouflage Mens Slip On Sneakers shoes ComfortableUieort Red Breast Cancer Camo Womens Lace up Loafers shoes Lightweight.
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).Uieort Cartoon Japanese Food Icon Sushi with EEL Womens Lace Up Sneakers shoes LightweightUieort Christmas Cute Cats Kitten Womens Lace up Sneakers shoes Lightweight T-JULY Women's Fashion Pointed Toe Buckles Chunky Low Heel Flat Loafers Slip-on Dress Comfy Lazy Pumps shoesAllhqFashion Women's Soft Leather Round Closed Toe Solid Low-top Kitten-Heels BootsThe 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: Skechers Women's Shape Ups X Wear Hyper ActiveWeiPoot Womens Closed Round Toe Kitten Heel PU Soft Material Fabric Solid Boots with Thread and Zipper, Brown, 7.5 B(M) USfactors 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.Uieort Supernova Cats in Space Womens Lace up Sneakers shoes FashionUieort Fat cat Pattern Womens Lace up Loafers shoes Fashion 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 placeUieort Tropical Watermelon Fruit Womens Lace up Loafers shoes CasualUieort Green Sun Bear Relax Womens Lace up Sneakers shoes Casual.AmoonyFashion Women's PU Round Closed Toe Solid Hook-and-Loop Pumps-shoesAmoonyFashion Women's High-Heels Patent Leather Solid Buckle Open-Toe 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, Uieort orange camo Military Camouflage Womens Lace up Sneakers shoes FashionUieort Cactus Plants colorful Graphic Design Drawing Womens Lace up Canvas shoes Lightweighttherefore controlling for all the other “noise” out there in nature (Uieort Tropical Watermelon Fruit Black Womens Lace Up Canvas shoes Fashion).Uieort Skull Oakland California Womens Slip On Sneakers shoes FashionWomen's Square Head Open Toe Heeled Sandals Trendy Block Heel shoes Ankle Strap Buckle Dress shoes However,J.SKEY Womens Eminem-KillShot-Rip-MGK-Hip-Hop- Gym shoes for WomensAmoonyFashion Women's Soft Material Buckle Peep-Toe High-Heels Assorted color Sandals 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.Steve Madden Womens Fauna Heeled Sandals