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Activity Number: 61
Type: Topic Contributed
Date/Time: Sunday, August 9, 2015 : 4:00 PM to 5:50 PM
Sponsor: Biometrics Section
Abstract #317549 View Presentation
Title: Analysis of FTICR-MS Features from a Reciprocal Soil Transplant Experiment
Author(s): Alejandro Heredia-Langner* and Nancy J. Hess and Kristin H. Jarman and Lee Ann McCue and Malak Tfaily and Vanessa L. Bailey
Companies: PNNL and PNNL and PNNL and PNNL and PNNL and PNNL
Keywords: Signature development ; clustering
Abstract:

We studied features obtained through FTICR-MS analysis of samples from a long-term reciprocal soil transplant experiment. The experiment was carried out to determine the response of dryland soils to climate change. Using a combination of classification and clustering approaches, we sought distinguishing features in FTICR-MS spectra that could be associated, through subject matter expertise, to metabolic changes in microbial populations. This task is challenging due to the presence of thousands of spectral features in each of more than one hundred soil samples analyzed.

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