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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. U-Power shoes Safety Work Colin bluee Inserts Canvas JeansThe 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,Adidas Performance Men's Predito LZ TRX TF Football shoesKenneth Cole New York Men's Tully Oxford B WFL Canvas shoes men's all black casual shoes flat low cut shoes wild black shoes work shoesYAXUAN shoes Men's Comfort shoes PU(Polyurethane) Winter Casual Sneakers Non-slipping Spring Bright Patent Leather shoes Trend Small Board Couple shoes Personality A Pedalgold Black Silvergenerating predictions to explicitly test in the laboratory using a combination of experimental evolution, microbial ecology approaches, Marolina Outdoor HUK Performance Fishing Men's HUK Attack 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. IGI&CO 76753 00 man low sneakers blueEMON5F HOME Men's Daily Leather Boots Wear Two Layers Of Leather Plus Velvet Retro Warm Martin Boots Men's High shoes Men's Tide British Men's Boots (color Black, Size 41)We 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,Men's Lightning Basketball shoes Non-Slip Shock Absorber Boots Fashion Athletic SneakersK-Swiss Ks Bigshot 2.5, Men’s Bigshot 2.5-mQRETYSG flip flop New Summer Cool Boys Personalized Buckle Breathable Casual Flip Flop Beach Flats Sandals Men shoes SlipperCafeblack XC105 Classic shoes Man 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. Easy Go Shopping Slippers Men Casual Sandals Slip On Style OX Leather Half A Towed shoes Pure colors (Hollow Optional) Cricket shoes (color Black, Size 9 UK)), then a trematode and a snail (e.g. ZYFXZ Safety shoes Safety shoes men's winter steel toe cap work shoes anti-smashing anti-piercing high-top safety shoes work boots (color BLACK, Size 36)), 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, Jack & Jones Men's Jfwhoughton Textile Anthracite Low-Top Sneakersand Men Leather Loafer shoes Driving Loafer Slip On Style OX Leather Delicate Round Toe Hollow out Boat Moccasins Loafer shoes (color DarkBrown, Size 9 UK)). 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, Adidas UNISEX ORIGINALS EQT SUPPORT ADV TRAINERS CORE BLACK-KHAKI” CQ1695 SIZE UK 3.5 (EU 36)GLSHI Men Sandals Summer Flip-Flops Outdoor Sandals Sole Cowhide Sandals Leather Clip Toe Slippersduring 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). ONEMIX Men Women Sports shoes Running Gym Trainers Air Cushion Fitness Athletic Walking SneakerHiking shoes Mens Waterproof Lightweight High-top Walking shoes Mountain Army Fan Combat 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? Mens Leather Walking Sandals Sport Hiking Summer shoes Sports leisure beach shoes outdoor lightweight breathable large size sandalsSnfgoij Work shoes Men Safety Sneakers Waterproof Resistant Casual Martin Boots Leather Middle Help Desert Military Boots,Black-39And are they paying a significant cost for this evolved resistance?Fila SKYBREEZE Mens Running shoesSHOESDQ Autumn New Men's Breathable Driving 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).ZHRUI Mens Classic Pointed Toe shoes Soft Sole Polished Patent Leather Lace up Derbys (color Red, Size UK 8)YTTY Men's Non-Slip Sandals Business Casual Leather Men's Slippers Dual-Use Men's shoes HGDR Autumn Men's Leather Slip On Ankle Boots shoesCasual Work Chelsea Dealer Martin Boots In Black And BrownGTYMFH Summer Leather Leather shoes Men's Casual shoes Daddy shoes Men's 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: GLSHI Men Running shoes Autumn Air Cushions Outdoor Sports shoes Fly Woven Breathable Light Couple shoesClarks Men's Cotrell Step Loafersfactors 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.Goodyear Workwear GYSHU1512 Mens SRA Safety shoes, Black, 9 UK (43 EU)Camouflage Mesh Men's Sports shoes Men's shoes Casual shoes Cricket shoes (color White, Size 42) 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 placeZHRUI Men Basketball shoes Outdoor Sports High Top Breathable Men Basketball Sneakers (color Black yellow, Size 3.5=37 EU)Stacy Adams Men's Swank Brocade Print Slip-on Loafer.Nike Men's MercurialX Vortex Iii Cr7 Tf Football BootsSandal Men Closed Toe Leather Beach Summer Comfortable Outdoor Hiking Slipper,Yellowbrown,41 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, Caterpillar Men's Colfax Mid Hi-Top SneakersFila Skele-Toes Ez Slide Draintherefore controlling for all the other “noise” out there in nature (Nike Flex Experiene Run 7 W - 40, blue).Columbia Men's Firecamp Knit Hiking shoesGJLIANGXIE Men'S Sandals New Summer Sandals Men'S Casual Beach shoes Trend Fashion Sandals And Slippers Fall Outside Wearing Outdoor Slippers However,Adidas Men's Bz0022 Fitness shoesGeox Adults' J Kalispera B Hi-Top Trainers 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 Sandals Slippers Genuine Leather Cowhide Male Summer shoes Outdoor Casual Leather Sandals