Tag: Phomopsis vitacola

Development of web application of grapevine trunk diagnostic tool

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Web app picMizuho Nita, and Sabrina Hartley

Progress update on development of web and mobile diagnostic application that will enable growers to properly diagnose trunk vine diseases and in return help determine proper management practices for the specific trunk disease identified.

Link to the presentation: Development of web application of grapevine trunk diagnostic tool

2014 Board Meeting -Renaud Travadon & Kendra Baumgartner

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BaumgartnerTravadon_GrapeGermplasm.picRenaud Travadon & Kendra Baumgartner

Developing rapid grapevine screening process to identify wine and table grape cultivars for resistance to Eutypa Dieback based on foliar and woody symptoms. Future efforts towards comparing gene expression profile between previously characterized resistance and susceptible cultivars.

Based on previously discovered Phomopsis resistant genes, determine if woody tissue resistant genes can be linked to green tissue symptom expression.

Determine how anatomical and chemical differences effect Botryosphaeria resistance levels in 7 table grape cultivars.

Link to the presentation: “Baumgartner and Travadon presentation for the board meeting 2014”

 

Host-based molecular markers for early detection of infection

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  • Goal– To determine if host-based molecular markers are unique to a particular pathogen
  • Activities – Identification of which pathogens are present in grapevine wood

Host marker 1Host marker 2Water stress4 Results and Outputs – Utilize qPCR to detect differential expression of target genes Water stress 6Significant Outcomes & Impacts – Identification of which pathogens are present in nursery stock grapevine wood. Eliminate contaminated stocks that would otherwise be used for propagation.

Accurate identification of trunk fungi

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Goal 2 – Accurate identification of trunk fungi

Activities – Allow for proper disease management and control practices

1.5

Results & Outputs – Developed a comprehensive DNA sequence database of trunk inhabiting fungi

1.6 1.7

Significant Outcomes & Impacts – Accurate species identification will lead to proper disease management practices.

Mobile diagnostic aid application development

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Goal – Develop visual diagnostic aids for trunk diseases.

Activities—Create a web/mobile application and website for trunk disease diagnosis.

2.5
Results & Outputs
Developed beta-versions of logic and flow charts.

2.6

Significant Outcomes & Impacts
Accurate disease diagnosis will minimize losses by leading growers to proper management practices.

Link: Trunk Disease Management for Eastern grape growing regions