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Proceedings of the 2018 Pierce's Disease Research Symposium

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Proceedings of the 2018 Pierce's Disease Research Symposium Proceedings of the 2018 Pierce’s Disease Research Symposium - December 2018 - Compiled by: Pierce’s Disease Control Program California Department of Food and Agriculture Sacramento, CA 95814 Editor: Thomas Esser, CDFA Cover Design: Sean Veling, CDFA Cover Photograph: Ken Freeze, Brown-Miller Communication Printer: California Office of State Publishing, Sacramento, California Cite as: Proceedings of the 2018 Pierce’s Disease Research Symposium. California Department of Food and Agriculture, Sacramento, CA. Available on the Internet at: https://www.cdfa.ca.gov/pdcp/Research.html Acknowledgements: Many thanks to the scientists and cooperators conducting research on Pierce’s disease and other pests and diseases of winegrapes for submitting reports for inclusion in this document. Note to Readers: The reports in this document have not been peer reviewed. TABLE OF CONTENTS Section 1: Xylella fastidiosa and Pierce’s Disease REPORTS • The Epidemiology of Novel Pdr1 Resistant Grapevines: Epidemic and Vector Movement Models to Support Integrated Disease Management Rodrigo Almeida. ...................................................................................................................................3 • Evaluating Potential Shifts in Pierce's Disease Epidemiology Rodrigo Almeida ..................................................................................................................................11 • Addressing Knowledge Gaps in Pierce’s Disease Epidemiology: Underappreciated Vectors, Genotypes, and Patterns of Spread Rodrigo Almeida, Monica Cooper, Matthew Daugherty, and Rhonda Smith .....................................20 • Field-Testing Transgenic Grapevine Rootstocks Expressing Chimeric Antimicrobial Protein and Polygalacturonase Inhibitory Protein Abhaya Dandekar.................................................................................................................................22 • Field Evaluation of Cross-Graft Protection Effective Against Pierce's Disease by Dual and Single DNA Constructs David Gilchrist, James Lincoln, Abhaya Dandekar, David Tricoli, and Bryan Pellissier ...................30 • Transgenic Rootstock-Mediated Protection of Grapevine Scion by Introduced Single and Dual Stacked DNA Constructs David Gilchrist, James Lincoln, Abhaya Dandekar, David Tricoli, and Bryan Pellissier ...................36 • Biological Control of Pierce's Disease of Grape with an Endophytic Bacterium Steven Lindow .....................................................................................................................................43 • Field Evaluation of Pierce's Disease Resistance of Various Diffusible Signal Factor Producing Grape Varieties as Scions and Rootstocks Steven Lindow .....................................................................................................................................58 • Geographic Distribution of Isolate Virulence in Xylella fastidiosa Collected from Grape in California and Its Effect on Host Resistance Rachel Naegele and Leonardo De La Fuente ......................................................................................62 - i - • Genome Editing of TAS4, MIR828, and Targets MYBA6/A7: A Critical Test of Xylella fastidiosa Infection and Spreading Mechanisms in Pierce's Disease Chris Rock, Sunitha Sukumaran, and Md. Fakhrul Azad ....................................................................66 • Characterization of the Lipopolysaccharide-Mediated Response to Xylella fastidiosa Infection in Grapevine Caroline Roper and Dario Cantu..........................................................................................................82 • Characterization of Xylella fastidiosa Plant Cell Wall Degradation and Inhibition of the Type II Secretion Machinery Caroline Roper, Dario Cantu, Andrew McElrone, and Qiang Sun .....................................................90 • Grape Protoplast Isolation and Regeneration of Plants for Use in Gene Editing Technology David Tricoli......................................................................................................................................101 • Breeding Pierce’s Disease Resistant Winegrapes Andrew Walker..................................................................................................................................108 • Molecular Breeding Support for the Development of Pierce's Disease Resistant Winegrapes Andrew Walker and Dario Cantu ......................................................................................................120 ABSTRACTS • Novel Amplification Targets for Rapid Detection and Differentiation of Xylella fastidiosa Subspecies fastidiosa and multiplex in Plant and Insect Tissue Lindsey P. Burbank ............................................................................................................................134 • Enhancing Grapevine Immunity by Design and Delivery of Anti-Xylella fastidiosa Peptides and Proteins Facilitates Treatment and Prevention of Pierce’s Disease Goutam Gupta and Michelle Miller...................................................................................................135 • Pierce’s Disease Monitoring Program in Kern County, 2017 David Haviland, Ashraf El-Kereamy, and Minerva Gonzalez ..........................................................136 • Screening and Identification of Pierce’s Disease and Powdery Mildew Dual Resistance Grapevines from an Advanced Backcross Breeding Population Hong Lin ............................................................................................................................................137 • Assessment of Transmission, Adaptation, and Competition of Mutant Strains of Xylella fastidiosa by the Glassy-winged Sharpshooter Hong Lin and Venkatesan Gounder ...................................................................................................138 • Epidemiology of Pierce’s Disease in the General Beale Area of Kern County Mark Sisterson, Lindsey P. Burbank, Rodrigo Krugner, David Haviland, and Drake Stenger.........139 - ii - • Genotyping Xylella fastidiosa Present in the Glassy-winged Sharpshooter in the General Beale Area of Kern County, California Drake C. Stenger, Lindsey P. Burbank, Rodrigo Krugner, and Mark S. Sisterson ...........................140 • Plant Microbial Community Associated with Infection of Xylella fastidiosa Revealed by Next Generation Sequencing Analyses Christopher Van Horn, Jianchi Chen, Mark Sisterson, and Zehan Dai .............................................141 Section 2: Glassy-winged Sharpshooter REPORTS • Sharpshooter Electropenetrography X Wave Represents the Xylella fastidiosa Inoculation Behaviors: Update on Evidence from Systemic, Symptomatic Pierce’s Disease Infections Induced After X Waves Elaine A. Backus, Felix A. Cervantes, Jacqueline Van De Veire, Lindsey Burbank, and Thomas M. Perring......................................................................................................................145 • Riverside County Glassy-winged Sharpshooter Program in the Temecula Valley Matt Daugherty, Ivan Tellez, and Diane Soto ...................................................................................149 • Insecticide Resistance in the Glassy-winged Sharpshooter: Using Historical Use Patterns to Inform Future Management Strategies Thomas M. Perring, Nilima Prabhaker, and Sharon Andreason ........................................................153 • Management of Insecticide Resistance in Glassy-winged Sharpshooter Populations Using Toxicological, Biochemical, and Genomic Tools Richard Redak, Bradley White, and Frank Byrne .............................................................................161 ABSTRACTS • Preliminary Findings Support that Vector Feeding Behaviors Controlling Inoculation of Xylella fastidiosa Are Performed Less on Three Backcross Siblings of PdR1 Parents than on Chardonnay Elaine A. Backus and Craig Ledbetter...............................................................................................167 • Prokaryotic Community of a Glassy-winged Sharpshooter Infected with Xylella fastidiosa Jianchi Chen, Rodrigo Krugner, and Minli Bao ................................................................................168 - iii - Section 3: Other Pests and Diseases of Winegrapes REPORTS • Grapevine Virus Management in Lodi: A Collaborative Research and Integrated Outreach Effort to Help Solve a Statewide Challenge Stephanie L. Bolton ...........................................................................................................................171 • A Study on the Impact of Individual and Mixed Leafroll Infections on the Metabolism of Ripening Winegrape Berries Dario Cantu, Maher Al Rwahnih, Susan Ebeler, and Deborah Golino, ...........................................180 • Seasonal Ecology and Transmission Efficiency of Three-Cornered Alfalfa Hopper and Other Novel Insect Vectors of Grapevine Red Blotch Virus Kent Daane, Houston Wilson, and Jeremy Anderson........................................................................184 • Quantifying Vine Mealybug Spatio-Temporal Dynamics: Assessing Invasion Risk to Refine Management Strategies Matt Daugherty, Monica Cooper, and Tyler Schartel........................................................................189 • Resistance to Grapevine Leafroll-Associated Virus 3 and the Grape Mealybug Marc Fuchs, Angela Douglas, Greg Loeb, and Deborah Golino .......................................................197 • Ecology
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