Dr. Timothy Mcnellis

Associate Professor

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Biography

Timothy W. McNellis is an Associate Professor in the Department of Plant Pathology and Environmental Microbiology at Penn State University. His research focuses on the molecular mechanisms of bacterial pathogenesis in plants, specifically the fire blight disease caused by the bacterium Erwinia amylovora, which affects apple and pear trees. He aims to enhance the understanding of how plants resist bacterial pathogens. McNellis leads a research group that studies plant-bacterial interactions at the molecular level, exploring topics such as the development of fire blight-resistant apple trees and citrus greening-resistant varieties. His educational background includes a B.A. in Biology from Johns Hopkins University and a Ph.D. in Biology from Yale University. Over the years, he has published numerous research papers on topics related to plant disease resistance and bacterial virulence. McNellis is dedicated to advancing the field of plant pathology through innovative research and collaboration.

Research Interests

Requirements for Pennsylvania State University

Doctorate Program
Requirements
GPA Requirement
Required:3
TOEFL
Writing
Required:24
Speaking
Required:23
Total
Required:100
IELTS
Writing
Required:7
Speaking
Required:7
Overall
Required:7
GRE General
Prerequisites
Master's degree in related field for PhD Baccalaureate degree from accredited institution
Application Checklist
  • Three letters of recommendation
  • Statement of Purpose
  • Writing Sample
  • Official Transcripts
  • Resume/CV
Specialization Notes

GRE scores are highly recommended but not strictly required for Applied Linguistics.