Biodiversity and ecology of potential vectors (Insecta: Hemiptera: Auchenorryncha) of Xylella fastidiosa Wells et al. in coffee plants of Puerto Rico.
TLDR
Apogonalia imitatrix represents the first report of the species for Puerto Rico, and may be potential vectors of Xf in plantings of coffee, Coffea arabica L., in Puerto Rico.Abstract:
Xylella fastidiosa (Xf) is a xylem-limited bacterium that is the causal agent of coffee leaf scorch (CLS) in Central America. The purpose of this research was to survey potential vectors of Xf in plantings of coffee, Coffea arabica L., in Puerto Rico. These surveys were conducted from June to November 2006 on four farms, located in the municipalities of Yauco, Juana Diaz and Adjuntas. Insects were collected at each site at 15-day intervals. The 7,423 individuals collected belonged to five families and 12 species. Cicadellidae was the primary family in both number of species and number of individuals. Indexes of dominance, abundance, frequency and constancy showed Agallia pulchra, Apogonalia imitatrix, Caribovia coffeacola and Hortensia similis to be the predominant species. Indexes also showed significant differences among locations, with higher diversity and equitability on Yauco farms, and higher dominance in Adjuntas. Of the four dominant species, Apogonalia imitatrix, C. coffeacola and H. similis are all xylem fluid feeders, and thus may be potential vectors of Xf. Apogonalia imitatrix represents the first report of the species for Puerto Rico.read more
Citations
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The Distribution of Cicadellinae Leafhoppers and Other Auchenorrhyncha on Coffee and Citrus in Puerto Rico.
Brent V. Brodbeck,Peter C. Andersen,Steve Oden,Russell F. Mizell,Stuart H. McKamey,Mildred Zapata +5 more
TL;DR: C. coffeacola was the only species that frequently fed on coffee and no species fed on citrus, and Cicadellinae were the predominant potential vector of the bacterium Xylella fastidiosa (Wells).
Journal ArticleDOI
Predictors of leafhopper abundance and richness in a coffee agroecosystem in Chiapas, Mexico.
TL;DR: As leafhoppers transmit important coffee diseases, understanding the specific habitat factors correlating with changes in abundance and richness may help predict future disease outbreaks.
Journal ArticleDOI
Leafhoppers Associated with Citrus Orchards on the Yucatan Peninsula, Mexico
E. Blanco-Rodríguez,Jesús Romero-Nápoles,J. Refugio Lomeli-Flores,Gustavo Mora-Aguilera,Christopher H. Dietrich +4 more
TL;DR: This research focused on taxonomy of Cicadellidae mainly on species related to citrus plants (Rutaceae) and identified 25 leafhopper species identified on the Peninsula of Yucatan, although some might be important pests of other crops.
References
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Métodos para medir la biodiversidad
TL;DR: This work gathers and exemplifies the most common methods to measure biodiversity, and is a simple guide for those interested on studies of community ecology or environmental assessment of biodiversity.
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Xylella fastidiosa gen. nov., sp. nov.: Gram-negative, xylem-limited, fastidious plant bacteria related to Xanthomonas spp.
John M. Wells,B. C. Raju,Hsueh-Yun Hung,William G. Weisburg,Linda Mandelco-Paul,Don J. Brenner +5 more
TL;DR: Twenty-five phenotypically and genotypically similar strains of a fastidious, xylem-limited bacterium were isolated from 10 plant disease sources, and the name Xylella fastidiosa is proposed, establishing a new genus with one species in the gamma subgroup of the eubacteria.
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The biology of xylem fluid-feeding insect vectors of Xylella fastidiosa and their relation to disease epidemiology.
Richard A. Redak,Alexander H. Purcell,João Roberto Spotti Lopes,Matthew J. Blua,Russell F. Mizell,Peter C. Andersen +5 more
TL;DR: Two Xylella diseases, citrus variegated chlorosis (CVC) and Pierce's disease of grapevines, have emerged as important issues within the past decade and are discussed.
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Fastidious xylem-limited bacterial plant pathogens
TL;DR: Molecular and genetic comparisons of strains of XLB lag behind progress being made for many other plant-pathogenic bacteria, but such studies are needed to answer important questions: how do XLB move from cell to cell within plants?
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Cell-cell signaling controls Xylella fastidiosa interactions with both insects and plants
TL;DR: It is shown that a diffusible signal molecule is required for biofilm formation in the vector and for vector transmission to plants, and identified the genes regulated by rpfF, which are more virulent than the wild type when mechanically inoculated into plants.