Acetylation of alcohols in the pheromone biosynthesis of the tomato looper,Chrysodeixis chalcites (Lepidoptera: Noctuidae) |
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| Institution: | 1. Institute of Plant Protection, ARO, The Volcani Center, Bet Dagan 50250 Israel;2. Department of Chemistry, Bar Ilan University, Ramat Gan 52100, Israel;1. Universidad Regional Amazónica Ikiam, Muyuna Road km 7, San Juan de Tena, Napo, Ecuador;2. Centro de Nanociencia y Nanotecnología, Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, Sangolquí P.O. BOX 171-5-231B, Ecuador;1. Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil;2. Department of Agriculture, Food and Environment, University of Pisa, Via Del Borghetto 80, 56124, Pisa, Italy;3. Department of Ecology, School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing, 210044, China;1. Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan, 430071, China;2. Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China;1. Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China;2. Pearl Breeding and Processing Engineering Technology Research Center of Guangdong Province, Zhanjiang, 524088, China;1. Tyndall Centre for Climate Change Research, School of Environmental Sciences, University of East Anglia, Norwich, UK;2. School of Geographical Sciences, University of Bristol, Bristol, UK;3. Center for Technology Research and Innovation, Limassol, Cyprus;4. School of Demography, Australian National University, Canberra, ACT, Australia;5. School of Health, Nelson Marlborough Institute of Technology, Nelson, New Zealand;6. Department of Public Health, Environments, and Society and Department of Population Health, London School of Hygiene & Tropical Medicine, London, UK |
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| Abstract: | A series of C11–C14 alcohols, varying in the number, position and geometry of double bonds, was applied topically to the sex pheromone glands of the tomato looper, Chrysodeixis chalcites, in order to study the acetylation step in the pheromone biosynthesis of this moth. Each application contained one of the alcohols and (Z)-11-tetradecenol, in equimolar amounts, as a metabolic standard for comparison of the relative conversion of the alcohols to acetates in the terminal biosynthetic step. One secondary and one tertiary alcohol were also included in the study. All alcohols were converted to the corresponding acetates at similar relative rates indicating that this step has a very low substrate specificity. One alcohol, (Z)-9-dodecenol was applied to the glands of head ligated females, which produces very small amounts of pheromone, in order to investigate the relation between the total biosynthesis of the pheromone and the acetylation step. The decrease in pheromone biosynthesis due to ligation of the head did not affect the acetylation step. |
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