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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. SHOESDQ Men's Running shoes Fashion Sneakers Four Seasons LeisureThe 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,Yxwxz Gym wear for men Men's outdoor hiking shoes waterproof leather walking shoes low waist comfortable lightweight non-slip lace casual shoes on cloud running shoes (Size 44)LOVDRAM Casual shoes Men'S Casual shoes New Breathable Men'S shoes Fashion Men'S Casual shoes Wild Wearable Imac' Trevor Mudguard Panel Tie Fashion Casual Lace Up shoesDLBJ Men's High-Top Martin Boots Winter Plus Velvet Warm Non-Slip Outdoor shoesgenerating predictions to explicitly test in the laboratory using a combination of experimental evolution, microbial ecology approaches, ZHRUI Fashion Mens Martins shoes Ankle shoes Man Oxfords Spring Boot for Male (color 4 Style, Size 7=41 EU)and 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. Clarks Men’s Franson Top Chukka BootsDonald J Pliner Men's Edwyn LoaferWe 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,Geox U Damian a, Men’s Low-Top SneakersTeva Men's Hurricane XLT 2 Sports and Outdoor Lifestyle SandalKEEN Uneek 8mm Camo, Men’s Low Trekking and Walking shoesMens Leather Oxford Capped Hi Shine Lace Up Smart Office Dress Formal shoes Size 7-12 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. Camouflage Mesh Men's Sports shoes Men's shoes Casual shoes Cricket shoes (color Black, Size 41)), then a trematode and a snail (e.g. DANDANJIE Men's Basketball shoes 2018 Fall Comfort Athletic shoes Outdoor Boots Sneakers), 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, Adidas Men's Questar Drive Gymnastics shoesand Alexandra Toffeln STC-FW516PU-3 Ezi-Klog, E-Tech, Plain, Size 3, Purple). 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, Caterpillar Evident Mid, Men’s Hi-Top SneakersOutdoor Cross-Country Hiking shoes Men wear-Resistant Waterproof Walking shoes Women's shoes Non-Slip Shock Men and Women Sports 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). Snfgoij Black Work shoes Mens Trainers Waterproof Lightweight Martin Boots Autumn Leather Boots Fashion High-top Hiking BootsMens Leather Martin Boots Outdoor Mountaineering Military Army Combat shoes Desert Armed Tactics Footwear High Top ComfortableLocal 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? GTYMFH Spring and Summer Leather shoes Leather Men Korean Casual shoes Men's shoesCotton shoes Autumn And Winter Cotton shoes Men Non-slip High Help Korean Version Leisure Plus Cashmere Warm shoesAnd are they paying a significant cost for this evolved resistance?Toni Pons Terra-VH - Vegan Espadrille for Woman Made in Fabric.MARITAN G 111935 Classic shoes Man Grey 44.
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).Kobo K-35 Cricket Rubber Sports shoes - White GreenAKRON Suede Fashion shoes, Vibram Sole + EVA, Focus Yellow Moutarde 41 Saucony Shadow 5000, Men’s Low-Top SneakersAdidas Men’s Arianna LII Baby 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: ZJ Men's Boots, Fall Winter, Casual Low-Top Boots, Loafers & Slip-Ons Driving shoes, Personality Martins Style, Outdoor Walking shoes, Ankle BootsINMONARCH Mens Beige Wedding shoes Checks Design MJ0015factors 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.SHANGWU Men's Leather Lined Oxfords Dress Ankle BootsMartin Boots Men's Leather Chelsea Bullock Carved England Men's BootsCole Haan Mens Boothbay Slip On Loafer Boothbay Slip on Loafer 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 placeAdidas Men's Equipment Racing 93 S79120 TrainersAsics Gel-task Mt, Men’s Volleyball shoes.Miles H 3.5 BlackAdidas Men's Nemeziz 18.3 in Footbal 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, SKY-Maria Men's Outdoor Sports shoes Fashion Running shoes Breathable Trainers Increased Comfortable Large Size 35-48LOVDRAM Men'S Leather shoes Casual shoes Men'S shoes Fashion Men'S Single shoes Casual Men'S shoes Fashion shoestherefore controlling for all the other “noise” out there in nature (OOFOS Women's Unisex Ooriginal Thong Flip-Flop).Men's Sneaker Spring and Summer Breathable Casual shoes Black Running shoes LeisureGAIQIN Casual shoes Men's shoes Sports Net shoes Wild Mesh shoes Men's Summer Casual Breathable Deodorant Knitted Running shoes (color White, Size 41) However,JUJIANFU-shoes Men's Fashion Business Oxford Casual Comfort Lacing New Vintage Simple Outsole Formal shoesLOVDRAM Boots Men's Men'S shoes Autumn shoes Retro Boots Men Chelsea Booties Desert Pu High Help Martin Boots 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.Rockport Men's Edmund Fashion Sneaker