Organic Geochemist & Head of Stable Isotope Laboratories
Travis B. Meador
- +420 387 775 877
Soil & Water Research Infrastructure
- Biology Centre CAS
- Na Sádkách 7, 370 05 České Budějovice
- Czech Republic
Travis has expertise in state-of-the-art techniques in both analytical chemistry and molecular biology to characterize the bulk chemical, functional group, and isotopic composition of physiologically and environmentally relevant molecules (i.e., biomarkers) found in natural organic matter and cultured organisms stemming from all three domains of life (i.e., Eukarya, Bacteria, and Archaea). His research has focused on biogeochemical cycles in the surface and deep oceans, as well as in estuaries, inland waters, and sediments.
Firstly, can you appreciate the importance of plant life for the planet? …Over centuries we have learned the relative importance and cultivation practices of many plant species: for crops, medicine, decoration, architecture, etc. Perhaps most importantly, plants on land and in the ocean are a natural sustenance that take carbon from the atmosphere, turn it into living biomass, and produce the oxygen that we breathe.
EQUALLY IMPORTANT as carbon assimilation by photosynthesis, is the removal of organic carbon via degradation of living biomass. Humans have also learned to benefit from this natural process; examples include composting, treating wastewater, and even brewing!
WE HAVE ONLY BEGUN to explore the many varieties of carbon degradation mechanisms on Earth. I am currently researching these and other capabilities of micro-organisms in marine sediments…
|Project||Principal Investigator||Collaborators||Funding Source||Term|
|Microbial antioxidants as biomarkers of recalcitrant organic matter||Sofia Semitsoglou-Tsiapou||Travis Meador, Lihini Aluwihare, David Kahoun||BC Grant Program (CAS)||2019-2020|
|Fungal Stable Isotope Fractionation (FUNSIF)||Travis Meador||Wesley Rangel||GACR Standard Grant||2020-2022|
Dissolved organic matter (DOM) is a black box of organic molecules in both the logistical sense, that we vaguely understand how it cycles but do not know the underlying mechanisms that control this cycling, and in the aeronautical sense, that DOM records the molecular “conversations” of events that have transpired. Indeed, DOM is often depicted as a central component in marine food webs, having important ties to all domains of life and the global C cycle; however, the processes that control its distributions and fluxes remain poorly defined and further investigation of its composition and reactivity is necessary to resolve environmental phenomena and anthropogenic forcings.
Biogeochemical Networks: The generation of large OTUs, geochemistry, lipidomic datasets has allowed for scientists to explore the relationship and potential drivers of microbial life below the seafloor. Using multi-variate analysis techniques, I am coordinating the results and efforts of a team of scientists to identify diagnostic trends in the distribution of microbes and their cell membrane biomarkers.
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