Team Directory

Meet our Researchers

Mitch Doktycz serves as the Laboratory Research Manager of the Plant-Microbes Interfaces Scientific Focus Area (PMI SFA) with Dale Pelletier and Timothy Tschaplinski, who serve as the co-managers. The PMI team includes investigators from the Biosciences Division (BSD) at ORNL. Core collaborators from Duke University (Rytas Vilgalys) and the French National Research Institute for Agriculture, Food and the Environment (INRAE-Nancy, France; Claire Veneault-Fourrey) complement the team. Contributors are listed below.

Members of PMI stand together.

Researchers & Postdocs at the 2026 PMI Annual Meeting

Project Management

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Mitchel J Doktycz

ORNL Corporate Fellow and Section Head of Bioimaging and Analytics.

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Dale A. Pelletier

Distinguished Scientist and Group Leader of Integrative Microbiomics.

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Timothy J. Tschaplinski

Distinguished Research Scientist and Section Head of Biodesign and Systems Biology.

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Jess Welch

Project Manager for the Plant-Microbe Interfaces SFA.

Staff Members

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Paul Abraham

Staff Scientist and Bioanalytical Chemist in Bioanalytical Mass Spectrometry

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Jack Cahill

Staff Scientist and Analytical Chemist in Bioanalytical Mass Spectrometry

Alyssa Carrel

Alyssa Carrell

Associate Staff Scientist and Ecologist in Plant Systems Biology

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Jay Chen

Staff Scientist, Plant Molecular Biologist, and Group Leader of Plant Systems Biology

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Hari Chhetri

Technical Professional in quantitative/statistical genetics in Computational and Predictive Biology

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Melissa Cregger

Staff Scientist and Ecosystem Ecologist in Integrative Microbiomics

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Bob Hettich

Distinguished Research Scientist and Group Leader of Bioanalytical Mass Spectrometry

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Leah Hochanadel

Technical Professional in Synthetic Biology

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Tia Hollander

Technical Professional in  Synthetic Biology

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Dan Jacobson

Distinguished Research Scientist in Computational and Predictive Biology

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Sara Jawdy

Technical Professional in Plant Systems Biology

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Dawn Klingeman

Master Technician in Synthetic Biology

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John Lagergren

Associate Staff Scientist in Plant Systems Biology

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Stan Martin

Data Management Lead Scientist in Computational and Predictive Biology

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Mac McLennan

Experimental Technologist in Plant Systems Biology

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Jennifer Morrell-Falvey

Staff Scientist and Group Leader of Molecular and Cellular Imaging

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Mircea Podar

Distinguished Staff Scientist in Integrative Microbiomics

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Miguel Rodriguez

Senior Technical Professional in Molecular and Cellular Imaging

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Tomás Rush

Staff Member and Mycologist in Synthetic Biology

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Brian Sanders

Staff Scientist and Chemist in Molecular and Cellular Imaging

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Christopher Schadt

Senior Staff Scientist and Microbial Ecologist in  Integrative Microbiomics

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Claire Veneault-Fourrey

Researcher at the French National Institute for Agricultural Research, INRAE, in Nancy, France.

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Rytas Vilgalys

Professor of Biology and Mycologist at Duke University

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Dave Weston

Staff Scientist and Molecular Plant Physiologist in Plant Systems Biology

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Xiaohan Yang

Senior Staff Scientist and Molecular Plant Biologist in Synthetic Biology

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Tao Yao

Technical Professional in Plant Systems Biology

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Larry York

Staff Scientist and Plant Ecophysiologist in Molecular and Cellular Imaging

Postdoctoral Fellows and Research Associates

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Delaney Beals

Postdoctoral Research Associate researching bacterial behaviors and interactions within the rhizosphere that are beneficial to Populus survival in Integrative Microbiomics

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Kate Bazany

A microbial ecologist with a PhD from Colorado State University researching the impact of drought on plant-microbial community composition, co-occurrence, and assembly in Integrative Microbiomics

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Julian Cosner

A biosystems scientist with a Ph.D. in Entomology, Plant Pathology, and Nematology with a focus in phenotypic responses in host selection and interactions in Synthetic Biology

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Shane Franklin

Postdoctoral Research Associate responsible for constructing microfluidic devices to examine microbial community organization in response to physical and chemical constraints in Molecular and Cellular Imaging

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Jonghyun Kim

Postdoctoral Research Associate focusing on metaproteome and metabolome measurements of constructed microbial communities to help decipher plant-microbiome interactions related to stress and resilience in Bioanalytical Mass Spectrometry

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Dileep Kishore

Postdoctoral Research Associate with a PhD. in Bioinformatics from Boston University. His research uses KBase as a platform to model microbe-microbe and plant-microbe interactions and employs these predictions to direct experimental analyses in Computational and Predictive Biology

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Gabriela Madrid

A plant molecular and cellular biologist with a PhD from the University of Florida researching computational tools to uncover the molecular processes driving the interactions between Populus and its associated microbiome in Computational and Predictive Biology

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Bal Maharjan

Bal grew up in Nepal and received his PhD from Texas A&M University. Bal is designing and testing biosensors, facilitating high throughput screening of beneficial plant-microbe interactions, and functionally characterizing genes and pathways in Plant Systems Biology

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Mallory Morgan

Postdoctoral Research Associate investigating a systems biology approach to understanding genetic mechanisms underlying the Populus trichocarpa microbiome in Computational and Predictive Biology

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Mezanur Rahman

A plant and soil scientist with a PhD from Texas Tech University investigating abiotic stress–related experiments and integrating plant physiological responses with multi-omics datasets in both the presence and absence of microbial partners in Plant Systems Biology

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Yangyang Song

A plant ecophysiologist with a PhD from the University of Florida investigating how roots and rhizosphere interact with microbial community using multimodal imaging and omics in Plant Systems Biology

Students

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Badrul Haidar

Graduate Student, Genome Science and Technology, University of Tennessee. Mentor: Jenny Morrell-Falvey

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Peter Kruse

Graduate Student, Data Science & Engineering, University of Tennessee. Mentor: Dan Jacobson

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Matthew Lane

Graduate Student, Data Science & Engineering, University of Tennessee. Mentor:  Dan Jacobson

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Sameer Mudbhari

Graduate Student, Genome Science and Technology, University of Tennessee. Mentor: Robert Hettich