Browsing by Author "Gomez, L."
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- Plant pathogens as indicators of climate changeGarrett, Karen A.; Nita, Mizuho; De Wolf, E. D.; Gomez, L.; Sparks, Adam H. (New York: Elsevier Press, 2009)We have reviewed how changes in the pattern of plant disease can be analyzed for evaluation of evidence for climate change impacts.
- Pyrosequencing to determine the influence of fallow period on soil microbial communities in the Bolivian HighlandsGomez, L.; Jumpponen, A.; Herman, M.; Garrett, Karen A. (2009)Using pyrosequencing methods, we are characterizing the responses of microbial communities in these systems to fallow period and the presence of Thola. In the first phase of the project, we have analyzed soil fungal diversity, as reported here. In the next phases of the project we will analyze both fungal and bacterial community composition in more detail in the Bolivian altiplano and in Zambian agricultural systems, synthesizing microbial community data with socioeconomic and soil physico-chemical data.
- Pyrosequencing to determine the influence of fallow period on soil microbial communities in the Bolivian HighlandsGomez, L.; Jumpponen, A.; Gonzales, Miguel Angel; Cusicanqui, Jorge; Valdivia, Corinne; Motavalli, Peter P.; Herman, M.; Garrett, Karen A. (2010)This poster addresses the shortened fallow periods in the Bolivian highlands, which result from the desire to increase short-term crop yields. Researchers conducted a study using 454-pyrosequencing techniques to characterize the response of the microbial community to the length of fallow period and the presence of plants, and the effect this response has on soil quality. The results of this study imply that the increase in fallow years was related to an increase in dominance in both fungal and bacterial communities.
- Soil Metagenomics to identify indicators of soil degradation in the Bolivian HighlandsGomez, L.; Jumpponen, A.; Herman, M.; Garrett, Karen A. (2008)The Bolivian Highlands (approximately 4000 masl) are experiencing changes in agricultural practices due in part to climate change and economic pressures. Traditional fallow periods are being shortened in an effort to increase yield, but this may be at the expense of soil quality. We will study soil microbial metagenomics using pyrosequencing methods, which allow us to place hundreds of thousands of individual microbes in taxonomic categories. Our goal is to identify microbes that may serve as indicators for the process of soil degradation and to understand the response of soil microbial communities to changing land management practices.