The Stock Lab is located on the 7th floor of the Marley Building.
The Marley Building's street address is 1145 E. 4th Street.



Let's meet our lab members:





Graduate Research Assistants

Jennifer Bauman

 Jennifer Bauman received her Bachelor’s degree in Botany with a minor in Chemistry from Colorado State University in 2003 with help from the William H Kreutzer Scholarship Foundation.  Her undergraduate work involved speciation studies in an environmentally threatened member of the Scrophulariaceae.  A lifelong dedication to sustainability issues and to agriculture’s influence on economic development led her to pursue a PhD in Plant Pathology at the University of Arizona .  Her professional interests are wide-ranging, from signaling in multitrophic interactions to differential expression of secondary metabolites to biological control.  She is excited to be a member of S. Patricia Stock’s lab where she can effectively investigate the intriguing interactions of entomopathogenic nematodes and their bacterial symbionts in the rhizosphere. Her first studies of a multitrophic system wherein it was found that a plant pathogen interfered with the efficacy of an entomopathogen brought her to present at the 2004 Society of Invertebrate Pathology meeting as a recipient of the nematode division travel award. She looks forward to becoming increasingly involved in this exciting field!




Joanna Gress

Joanna received in Bachelor degree in Biology from Mills College in Oakland CA , in May 2003. She received an IGERT fellowship in Functional, Evolutionary and Computational Genomics at the University of Arizona where she joined the Plant Sciences Department.

Her involvement in the IGERT program helped foster her interest in phylogenetics and the evolutionary mechanisms of diversification. She is currently the newest member of the Stock Lab and is working on the molecular characterization of Sky-Island entomopathogenic nematodes of Tucson . Her dissertation work will be on the citrus nematode, Tylenchulus semipenetrans an important citrus pest in Arizona .





Undergraduate Lab Assistants
Pavla is a senior at the Uof A.  She is pursuing a double Bachelors degree in Comprehensive Mathematics and Biochemistry. In the lab, she is currently working on DNA sequencing of nematodes. She plans on spending one more year as an undergraduate and conclude her degree with an abroad fellowship in Spain the Czech Republic or India .
Pavla Senkirikova

Jessica is a senior at the UofA.  She is pursuing a Bachelors degree in Anthropology (Major) with a minor in Environmental Sciences. In the lab, she is conducting several experiments dealing with ecological characterization of new entomopathogenic nematode isolates.  Jessica plans to graduate in May 2005, and will apply to several Law schools to continue her studies in this field.
Jessica Sparling
Chan is a freshman at the U of A.  He is pursuing a Bachelors degree in Plant Sciences.  Chan helps in the design and follow up of several experiments in the lab.  He also assists in the maintenance of our live nematode cultures and performs other daily routines in the lab.  Although science is new to him, he is very organized and meticulous in his work.
Chan Maketon
Senior Research Scientists
Mark has a broad expertise in plant-parasitic nematodes.  He is currently collaborating in a research project that considers the interactions of entomopathogenic nematodes (EPN) and citrus nematode, Tylenchulus semipenetrans. The goals of this project is to evaluate the potential of EPN in biological control of the citrus nematode in Arizona .
Mark Schmitt
Visiting Scientists
Benjamin is a visiting scientist from Universidad de Sonora , Mexico . He is a farm advisor  and lecturer at this university and is currently interested in the implementation of biological control agents (mostly fungi and  nematodes) to control different insects and plant pathogens in asparagus fields in the state of Sonora .
Benjamin Rivera-Orduño
Juan Carlos is a researcher at CENICAFE (Coffee Institute) in Colombia .  He is currently working on the identification (morphological and molecular) of entomopathogenic nematode isolates from coffee plantations in Colombia and is planning to consider these nematodes a s a biological control strategy for the coffee berry borer.
Juan Carlos Lopez Nuñez