RED BLOTCH VIRUS IN GRAPES NPDN Invasives Workshop 5 February Deborah Golino UC Davis

Transcription

1 RED BLOTCH VIRUS IN GRAPES NPDN Invasives Workshop 5 February 2014 Deborah Golino UC Davis

2 Grapevine Virus Diseases

3 (+) ssrna (-) ssrna Tobamovirus Tobravirus Hordeivirus Furovirus Potexvirus Capillovirus, Trichovirus Sesquiviridae Tombusviridae Dianthovirus Luteovirus Machlomovirus Marafivirus Necrovirus Sobemovirus Tymovirus Comoviridae Enamovirus Idaeovirus Bromoviridae Cucumovirus Bromovirus Ilarvirus Alfamovirus Rhabdoviridae Cytorhabdovirus Nucleorhabdovirus Carlavirus Potyviridae Bunyaviridae Tospovirus Closterovirus Tenuivirus dsdna ssdna dsrna Caulimovirus Badnavirus Geminiviridae Geminivirus Subgroup l,ll Subgroup lll Isometric Banana buchy top virus group Reoviridae Phytoreovirus Fijivirus Oryzavirus Partitiviridae Alphacryptovirus Betacryptovirus

4 FPS Target Grapevine Diseases Grapevine Degeneration Fanleaf Grapevine Decline Tomato Ringspot Virus Leafroll Rugose Wood Complex Kober Stem Grooving Corky Bark LN33 Stem Grooving Rupestris Stem Pitting Fleck Minor Viruses

5 Association of a Circular DNA Virus in Grapevines Affected by Red Blotch Disease in California M. Al Rwahnih 1, A. Dave 1,2, M. Anderson 3, J. K. Uyemoto 2 and M.R. Sudarshana 1,2 1 Dept. of Plant Pathology, 2 USDA-ARS, 3 Dept. of Viticulture and Enology, University of California, Davis, CA 95616, USA

6 Yr Grapevines showed leafroll-like symptoms. - Tested negative for known grapevine viruses. - Lower sugar accumulation. - Delayed harvest. - No stem markings. UCDavis-VES: Cabernet Sauvignon 4/ Oakville Cabernet Franc 214/ Rutherford Cabernet Sauvignon 337/ Calistoga Several scions on AXR-1 (Cabernet Sauvignon, Merlot, and Zinfandel)

7 Next Generation Sequencing

8 Grapevine red blotch on Cabernet Franc

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10 Zinfandel 1A on AXR, Fall 2011

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12 Foundation Plant Services: Produces, tests, maintains and distributes elite disease-tested plant propagation material Provides plant importation and quarantine services, virus testing and elimination Coordinates release of UC patented horticultural varieties Links researchers, nurseries, and producers College of Agricultural & Environmental Sciences

13 CROP PROGRAMS AT FPS Grape Strawberry Tree Rose Sweet potato Pistachio

14 GRAPES CALIFORNIA REGISTRATION & CERTIFICATION PROGRAMS FRUIT & NUT TREES STRAWBERRIES

15 THE DANGERS OF SAMSONITE IMPORTATION PPV on nectarine Pierce s Disease

16 Why do you need clean plant material?

17

18 SHOOT TIP CULTURE 1 mm

19 Process Description: Grapevine Importation through Foundation Plant Services, UC Davis (Simplified) Document # FPS UC Regents S. Sim Revised March 6, 2012 YEAR 0 YEAR 1 YEAR 2 YEAR 3 YEAR 4 YEAR 5 YEAR 6 YEAR 7 YEAR 8 YEAR 9 Customer submits Service Request Form to FPS and identifies supplier. Supplier collects wood ships it to APHIS, Beltsville, MD APHIS inspects forwards shipment to FPS Field Index Graft onto indicators: Cabernet franc Kober 5BB LN-33 St. George Read leaf symptoms on St. George, Spring Read trunk symptoms on St. George, LN- 33, and 5BB, Summer Read leaf symptoms on Cabernet franc Fall Yolo county inspects shipment when opened. FPS assigns Accession number and Plant ID numbers. Mist Propagated Plants Available Provisional status Mist Propagated Plants Available Provisional status Qualifies for California Registered Foundation Stock Separate Canes into 2 Bundles 96 buds (ideal) for field index 8 canes for propagation Canes for propagation Index buds Fungicide, Pesticide, Hot water dip Propagate Make 8 plants Move 4 plants to screenhouse for growing season Growing 4 plants in large pots Evaluate Tests Test Results negative APHIS and CDFA authorize release Plant in Foundation Vineyard Grow and Train Trunk and Cordons Professional Identification DNA and/or Visual California Registered Material Available Keep 4 plants in greenhouse for testing and tissue culture in winter LAB TEST Herbaceous host testing, ELISA for nepoviruses, fleck, Spring LAB TEST PCR and ELISA Fall Tests positive Visual Inspection Fall LAB TEST ELISA for nepoviruses, fleck, Repeated, Spring Visual Inspection Fall LAB TEST ELISA for nepoviruses, fleck, Repeated, Spring, Presumptive Tissue Culture for VIP Selections Growing From 4 inch pot to 2 gallon pot; harvest woody buds for index Field Index To determine treatment outcome Growing Read Spring Read Summer Growing Read Fall Evaluate Test Results APHIS Tests and neg. CDFA authorize release Mist Propagated Plants Available Provisional status Plant in Foundation Vineyard Mist Propagated Plants Available Provisional status Grow and Train Trunk/ Cordons Verify ID Qualifies for CA Reg. Foundation Stock California Registered Material Available Note: The green arrow represents a best case scenario in which a grape introduction tests negative for all viruses and establishes rapidly in the vineyard. The purple arrows represent best case scenarios in which tissue culture treatment successfully eliminates virus and the vine establishes rapidly in the vineyard. Tissue Culture for virus elimination Tests positive LAB TEST To determine treatment outcome. PCR and ELISA Growing From 4 inch pot to 2 gallon pot; harvest woody buds for index Field Index To determine treatment outcome Growing Read Spring Tests positive Read Summer Growing Visual Inspection Fall Read Fall Evaluate Test Results LAB TEST ELISA Repeated, Spring APHIS Tests and neg. CDFA authorize release Visual Inspection Fall Mist Propagated Plants Available Provisional status Plant in Foundation Vineyard LAB TEST ELISA Repeated, Spring, Mist Propagated Plants Available Provisional status Grow and Train Trunk/ Cordons Verify ID Qualifies for CA Reg. Foundation Stock California Registered Material Available Tests positive LAB TEST To determine treatment outcome. PCR and ELISA Tests positive Visual Inspection Fall LAB TEST ELISA Repeated, Spring Visual Inspection Fall LAB TEST ELISA Repeated, Spring,

20 What about Red Blotch in Russell Ranch or the Classic Foundation Vineyard?

21 Classic Foundation Vineyard

22 GRBaV-Infected Plants at FPS Vineyards Variety Area Block Row # Plant # Chardonnay 68 BKN D 3 8 Thomcord 02 BKN E 8 3 Ruby Cabernet 02 NYL D 3 3 Orange Muscat 02 BKN A 15 2 Chardonnay 49 NYL C 17 8 Chardonnay 39 NYL C Chardonnay 41 NYL C 18 7 Chardonnay 37 NYL C Marsanne 574 NYL I 13 2 Total vines tested: RR = 1102 and Classic Vineyards = 3068 vines

23 Variety Area Block Row Plant # RB-PCR ph Brix Orange Mus. 02 BKN A 15 1 Neg Orange Mus. 02 BKN A 15 2 Pos Chardonnay 68 BKN D 3 7 Neg Chardonnay 68 BKN D 3 8 Pos Thomcord 02 BKN E 8 4 Neg Thomcord 02 BKN E 8 3 Pos Chardonnay 49 NYL C 17 9 Neg Chardonnay 49 NYL C 17 8 Pos Chardonnay 39 NYL C Neg Chardonnay 39 NYL C Pos Chardonnay 41 NYL C 18 6 Neg Chardonnay 41 NYL C 18 7 Pos Chardonnay 37 NYL C Neg Chardonnay 37 NYL C Pos Ruby Cab. 02 NYL D 3 4 Neg Ruby Cab. 02 NYL D 3 3 Pos Marsanne 574 NYL I 13 1 Neg Marsanne 574 NYL I 13 2 Pos

24 Cabernet Sauvignon

25 H, A15V1 RB, A15V2 Orange Muscat H, D3V7 RB, D3V8 Chardonnay 68

26 H, C18V8 RB, C18V7 Chardonnay 41 H, D3V4 RB, D3V3 Ruby Cabernet 02

27 Field Index on Cab. Franc Plant ID LR-PCR GRBaV- PCR Cab. F. Index Pos Pos Pos Neg Pos Pos Neg Pos Pos Neg Pos Pos Pos Pos Pos Pos Pos Pos Neg Pos Pos Neg Pos Pos Neg Pos Pos Pos Pos Pos Pos Pos Pos

28 The National Clean Plant Network

29 New Russell Ranch Foundation Vineyard established 2010, Davis California October, 2012

30 Qualification of Russell Ranch Foundation Vines Grapevine Disease Testing Protocol ) Microshoot tip tissue culture therapy 2) Negative test results - long list of pathogens - index, herbaceous, ELISA and PCR tests 3) Agrobacterium vitis testing at Cornell

31 What about Red Blotch in Russell Ranch Foundation Vineyard?

32 Thank you