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J Agric Food Chem

Title:		Identification of Glutamic Acid as a Host Marking Pheromone of the African Fruit Fly Species Ceratitis rosa (Diptera: Tephritidae)
Author(s):		Cheseto X; Kachigamba DL; Bendera M; Ekesi S; Ndung'u M; Beck JJ; Torto B;
Address:		"International Centre of Insect Physiology and Ecology (icipe) , P.O. Box 30772, 00100 Nairobi , Kenya. Jomo Kenyatta University of Agriculture and Technology , Chemistry Department , P.O. Box 62000, 00200 Nairobi , Kenya. Department of Agricultural Research Services , Bvumbwe Research Station , P.O. Box 5748, Limbe , Malawi. Chemistry Research Unit, Center for Medical, Agricultural and Veterinary Entomology , Agricultural Research Service, U.S. Department of Agriculture , 1700 SW 23rd Drive , Gainesville , Florida 32608 , United States"
Journal Title:		J Agric Food Chem
Year:		2018
Volume:		20180914
Issue:		38
Page Number:		9933 - 9941
DOI:		10.1021/acs.jafc.8b04481
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Host marking pheromones (HMPs) deposited by female fruit flies deter other females from overexploiting the same fruit for egg laying. Using a bioassay-guided approach, we identified the HMP of the Natal fruit fly species Ceratitis rosa as glutamic acid, 1, from the aqueous fecal matter extract of ovipositing females by liquid chromatography-quadrupole time-of-flight-mass spectrometry (LC-QTOF-MS). Dual choice oviposition assays showed that both the fecal matter extract and 1 significantly reduced oviposition responses in conspecific females of C. rosa. Glutamic acid levels were 10-20 times higher in fecal matter than in the ovipositor or hemolymph extracts of females. Identification of 1 as a host marking pheromone in females of C. rosa improves our understanding of fruit fly chemical ecology and provides evidence that it could be used as a potential component in the integrated management of this fruit fly species"
Keywords:		Animals Ceratitis capitata/*chemistry/metabolism Feces/chemistry Female Glutamic Acid/*analysis/metabolism Male Mangifera/parasitology Mass Spectrometry Oviposition Pheromones/*analysis/metabolism Ceratitis rosa fruit fly host marking pheromone ovipositio;
Notes:		"MedlineCheseto, Xavier Kachigamba, Donald L Bendera, Mwanasiti Ekesi, Sunday Ndung'u, Mary Beck, John J Torto, Baldwyn eng 2018/09/06 J Agric Food Chem. 2018 Sep 26; 66(38):9933-9941. doi: 10.1021/acs.jafc.8b04481. Epub 2018 Sep 14"