The 2005 ESA Annual Meeting and Exhibition
December 15-18, 2005
Ft. Lauderdale, FL

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Saturday, December 17, 2005

Salivary gland gene expression and glassy-winged sharpshooter

X. H. Sinisterra, Xsinisterra@ushrl.ars.usda.gov1, Wayne Hunter, Whunter@ushrl.ars.usda.gov1, C. S. Katsar, ckatsar@ushrl.ars.usda.gov1, and Elaine A. Backus, ebackus@fresno.ars.usda.gov2. (1) USDA ARS, 2001 S Rock Rd, Fort Pierce, FL, (2) USDA-ARS-PWA, San Joaquin Valley Agric. Sci. Ctr., Crop Diseases, Pests & Genetics Research Unit, 9611 So. Riverbend Ave, Parlier, CA

Glassy-winged sharpshooter, GWSS, feeding depends upon the salivary enzymes available to utilize a host plant. Insects which feed in a piercing-sucking manner that seek out the plants vascular tissues, the xylem and phloem, demonstrate a highly specialized type of feeding. This type of feeding is also very successful in enabling the transmission of many plant pathogens, such as Xylella, to the detriment of agricultural cropping systems. Analyses of the salivary components across the Hemiptera, and within the GWSS is providing new insights into the adaptability of leafhoppers to their host plants. Identification of important genes and proteins linked to feeding will enable researchers to develop more efficient management strategies to protect agricultural crops.

Species 1: Hemiptera Cicadellidae Homalodisca coagulata (Glassy-winged sharpshooter)
Species 2: Hemiptera Cicadellidae Oncometopia nigricans (Black-winged sharpshooter, Leafhopper)
Keywords: salivary glands