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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. Amblers Steel FS159 Mens Safety Boots Textile Leather PU Lace Up Fastening 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,XUE Men's PU shoes Spring Summer Loafers & Slip-Ons Driving shoes Lazy shoes Casual Breathable Comfort Formal Business Work Party & EveningAmblers Steel FS12C Unisex Adults Composite Boots Lace-Up Fastening Safety shoes YAXUAN shoes Spring New Sports shoes Male Students Korean Fashion High-top Casual shoes Men's Platform Basketball shoes (color C, Size 39)Steve Madden Men's Daywork Sneakergenerating predictions to explicitly test in the laboratory using a combination of experimental evolution, microbial ecology approaches, Teva Men's M Langdon Sandal Low Rise Hiking 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. SHANGWU Men's Waltz Italian Genuine Leather Collection Business Leather shoes Pointed Leather Men's Dress shoes Bullock Men's shoesALDO Men's Piccadilly Oxford, Brown, 7 D USWe 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,Adidas Adi-Kick shoes made from PU Nylon IIZIXUAP Men's Sneakers Women's Sports shoes Fashion Lightweight Running shoes low-top SneakerLee Cooper Workwear LCSHOE091 Mens Work Safety Waterproof Trainer Hiker Boot S3 SRA, Black UK8 EU42REIS Work Boot Safety Footwear Nubuck Brvan T shoes EVA Top and New 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. Rockport Men's City Stride Cap Toe Oxford), then a trematode and a snail (e.g. LXXAMens Summer Beach Open-Toe Sandals Male Slipper Velcro Outdoor shoes Two Uses), 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, Firetrap Mens Knox Chelsea Bootsand Adidas Cloudfoam Swift Racer, Men’s Running 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, XUE 2018 Spring Summer,Men's shoes，Running shoes，Low-Top Sneakers，Casual Walking shoes,Wild Mesh shoes，Flat Loafers，Breathable Fitness shoes，Hiking shoes (color C, Size 41)Rock Fall RF460 Slate 9 Safety Boot, Blackduring 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). MARC JOSEPH NEW YORK Mens Leather Made in Brazil Broadway LoaferKalra Creations Men's Mojari Traditional Indian Jutti Groom shoesLocal 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? SUN Men Outdoor Hiking shoes Hiking Leisure Sneakers Brown ArmyGreen (color 2, Size EU42 UK8.5 CN43)LOVDRAM Men'S Leather shoes Men'S Leather shoes Leather shoes Casual Men'S shoes BootsAnd are they paying a significant cost for this evolved resistance?XTIANUK Mens Boat shoes Lightweight Slip On Soft Flat White Leather Driving Loafers Size 4-10 UKYaer Men Hiking Boots, Waterproof Trekking Outdoor shoes.
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).LIUYL Men's Military Army Combat Boot High-top Outdoor Tactical Boots Desert Hiking shoes Work Patrol All Terrain Boots,Sand color-43Loafers Spring Men's Casual shoes Lazy Peas shoes Trend Bright Embossed Flat Men's Work Boots Antislip Low Top shoes Pull on Style Suede Leather Lace up Riding Hiking Cricket shoesLalo Tactical BUD s Bloodbird shoes - Men'sThe 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: Adidas Men's Predator 18.3 Firm Ground Soccer shoesOneMix Unisex Modern City Lightweight Knit Running Jogging 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.Sports Athletic Sandals Men Closed Toe Summer Sports Casual Fisherman Leather Beach shoes Hiking Outdoor Anti Collision sandalSDKHIN Military Desert Boots for Men hiking side-zip Combat Boots Non slip outdoor combat tactical boots 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 placeHiking shoes Men Waterproof Walking shoes Non Slip Trekking Autumn Winter high Help Outdoor Military Boots Desert Tactical BootsMen'S Chelsea Boots Winter Waterproof Non-Slip Martin Boots Soft Leather Desert Boots Outdoor Boots.XIANGBAO-Personality Simple Men's PU Leather Brogue shoes Classic Lace Up Tassel Decoration Breathable Formal Business Lined OxfordsHandmade shoes Breathable Beach Casual Men's 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, Men shoes Autumn Winter Motorcycle Men Boots High-Cut Lace-up Warm Men Casual shoes FashionGTYW, Men's Military Boots, Professional shoes, Combat Boots, Outdoor, High-top, Black, Tactical Boots, Ultra-Light Breathable Hiking shoes, 37-44therefore controlling for all the other “noise” out there in nature (Shiney 2018 New Men's Business Dress shoes Patent Leather shoes Lace Up Wedding Casual shoes).ZLLNSPX Mens Driving shoes Comfortable British Style Breathable Bean shoesMen's Genuine Leather shoes Pointed Toe Business Dress shoes Lace-ups Derby Party shoes However,ZYFA Casual shoes Casual shoes suede high shoes flat with rubber sole wear-resistant wild warm Martin boots (color B, Size 40)WOJIAO Mens Hiking Mid Waterproof Boots Winter Warm High Top Leather shoes Oxfords Lace Up Outdoor Sneakers 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.Men's Oxfords Spring Summer Fall Winter Comfort Leather Outdoor Office Career Casual Party Evening Flat Heel Rivet Lace-up Black Brown