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Proc Natl Acad Sci U S A

Title:		Identification of bacteria and bacteria-associated chemical cues that mediate oviposition site preferences by Aedes aegypti
Author(s):		Ponnusamy L; Xu N; Nojima S; Wesson DM; Schal C; Apperson CS;
Address:		"Department of Entomology and W. M. Keck Center for Behavioral Biology, Box 7613, North Carolina State University, Raleigh, NC 27695-7613, USA"
Journal Title:		Proc Natl Acad Sci U S A
Year:		2008
Volume:		20080707
Issue:		27
Page Number:		9262 - 9267
DOI:		10.1073/pnas.0802505105
ISSN/ISBN:		1091-6490 (Electronic) 0027-8424 (Print) 0027-8424 (Linking)
Abstract:		"The yellow fever mosquito, Aedes aegypti, the global vector of dengue and yellow fever, is inexorably linked to water-filled human-made containers for egg laying and production of progeny. Oviposition is stimulated by cues from water containers, but the nature and origin of these cues have not been elucidated. We showed that mosquito females directed most of their eggs to bamboo and white-oak leaf infusions, and only a small fraction of the eggs were laid in plain water containers. In binary choice assays, we demonstrated that microorganisms in leaf infusions produced oviposition-stimulating kairomones, and using a combination of bacterial culturing approaches, bioassay-guided fractionation of bacterial extracts, and chemical analyses, we now demonstrate that specific bacteria-associated carboxylic acids and methyl esters serve as potent oviposition stimulants for gravid Ae. aegypti. Elucidation of these compounds will improve understanding of the chemical basis of egg laying behavior of Ae. aegypti, and the kairomones will likely enhance the efficacy of surveillance and control programs for this disease vector of substantial global public health importance"
Keywords:		"Aedes/anatomy & histology/*microbiology/*physiology Animals Bacteria/*isolation & purification Behavior, Animal/*physiology Biological Assay Female Oviposition/*physiology Pheromones/*analysis Plant Leaves/parasitology Sasa/metabolism;"
Notes:		"MedlinePonnusamy, Loganathan Xu, Ning Nojima, Satoshi Wesson, Dawn M Schal, Coby Apperson, Charles S eng U01 AI058303/AI/NIAID NIH HHS/ U01-AI-58303-01/AI/NIAID NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't 2008/07/09 Proc Natl Acad Sci U S A. 2008 Jul 8; 105(27):9262-7. doi: 10.1073/pnas.0802505105. Epub 2008 Jul 7"