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Research Article

An American Hybrid Vineyard in the Texas Gulf Coast: Analysis within a Pierce’s Disease Hot Zone

Prince Buzombo, Jose Jaimes, Vien Lam, Kimberly Cantrell, Melinda Harkness, Deanna McCullough, Lisa Morano
Am J Enol Vitic.  2006  57: 347-355  ; DOI: 10.5344/ajev.2006.57.3.347
Prince Buzombo
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Jose Jaimes
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Vien Lam
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Kimberly Cantrell
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Melinda Harkness
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Deanna McCullough
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Lisa Morano
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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  • For correspondence: moranol@uhd.edu
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Abstract

The incidence of Pierce’s disease (PD) within an American hybrid vineyard in the Texas Gulf Coast was evaluated. Multiple viticultural parameters and Xylella fastidiosa levels were assessed for the varieties Black Spanish, Blanc du Bois, and Cynthiana in this region of intense disease pressure. Potential PD symptoms were observed uniformly in Cynthiana and sporadically in Blanc du Bois and Black Spanish postharvest. Consistent with these symptoms, Cynthiana showed significantly lower crop yield than either Blanc du Bois or Black Spanish and had significantly higher positive ELISA values for X. fastidiosa in summer petioles. Individual Cynthiana vines with higher bacterial levels as determined by ELISA exhibited correspondingly lower yields (p = 0.06). Indirect immunofluorescence microscopy of petiole xylem sap and PCR of petiole DNA confirmed positive X. fastidiosa ELISA readings in all three varieties. Cynthiana petioles tested by ELISA showed a dramatic increase in bacterial levels over the growing season. In contrast, bacterial levels in Black Spanish and Blanc du Bois remained lower all season despite high disease pressure. An evaluation of potential local plant reservoirs for X. fastidiosa demonstrated that at least six asymptomatic plant species tested positive by both ELISA and PCR: Ilex vomitoria, Vitis mustangensis, Rubus trivialis, Platanus occidentalis, Lippia nodiflora, and Lonicera japonica. In addition, June insect traps contained a significant number of X. fastidiosa-positive glassy-winged sharpshooters, Homalodisca coagulata, and several positive sharpshooters identified as Oncometopia orbona, suggesting the presence of multiple species of insect vector in this region.

  • American hybrids
  • Pierce’s disease
  • Xylella fastidiosa
  • Homalodisca coagulata
  • Oncometopia orbona
  • Received January 2005.
  • Revision received September 2005.
  • Revision received February 2006.
  • Copyright © 2006 by the American Society for Enology and Viticulture
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You have accessRestricted access
An American Hybrid Vineyard in the Texas Gulf Coast: Analysis within a Pierce’s Disease Hot Zone
Prince Buzombo, Jose Jaimes, Vien Lam, Kimberly Cantrell, Melinda Harkness, Deanna McCullough, Lisa Morano
Am J Enol Vitic.  2006  57: 347-355  ; DOI: 10.5344/ajev.2006.57.3.347
Prince Buzombo
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Jose Jaimes
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Vien Lam
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Kimberly Cantrell
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Melinda Harkness
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Deanna McCullough
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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Lisa Morano
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
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  • Find this author on PubMed
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  • For correspondence: moranol@uhd.edu

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An American Hybrid Vineyard in the Texas Gulf Coast: Analysis within a Pierce’s Disease Hot Zone
Prince Buzombo, Jose Jaimes, Vien Lam, Kimberly Cantrell, Melinda Harkness, Deanna McCullough, Lisa Morano
Am J Enol Vitic.  2006  57: 347-355  ; DOI: 10.5344/ajev.2006.57.3.347
Prince Buzombo
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Jose Jaimes
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Vien Lam
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Kimberly Cantrell
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Melinda Harkness
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Deanna McCullough
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Lisa Morano
1Research student, 2Associate professor of biology, 3Assistant professor of biology and microbiology, University of Houston-Downtown, One Main Street, Houston, TX 77002.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: moranol@uhd.edu
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