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Perez-Puyana V, Felix M, Romero A, Guerrero A. Effect of the injection moulding processing conditions on the development of pea protein-based bioplastics. J Appl Polym Sci 2016. [DOI: 10.1002/app.43306] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Guerrero A, Muela E, Valero MV, Prado IN, Campo MM, Olleta JL, Catalán O, Sañudo C. Effect of the type of dietary fat when added as an energy source on animal performance, carcass characteristics and meat quality of intensively reared Friesian steers. ANIMAL PRODUCTION SCIENCE 2016. [DOI: 10.1071/an14682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effects of different fats in the diet were evaluated on the basis of animal performance, carcass and meat-quality traits. Four groups of eight Friesian steers were intensively finished with concentrate and cereal straw given ad libitum. Four different types of fats were included at a 4% level in the diet, namely, palm oil, sunflower oil, tallow and hydrogenated fat. The feeding trial lasted for 84 days. There were no differences on animal performance or carcass characteristics, except for animals from the hydrogenated-fat diet, which had the greatest percentage of muscle and moisture, and the lowest percentage of fat in a 6th rib dissection. Meat colour, texture, lipid oxidation and consumer acceptability did not differ among the diets. Nevertheless, the effects of ageing or display time were more important than those of the source of fat. Intramuscular fatty acid profile was hardly influenced by the fat source. In conclusion, the type of fat added at the final stage of the rearing process, at a 4% of inclusion level, did not produce noticeable variations on productive parameters or product quality. This would allow to formulate rations for cattle, using the most profitable source of fat (added at low levels), without having variability on the product quality.
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Domingo I, Cuenca M, Gimeno F, Guerrero A. Incidence of leptospirosis in Spain, 2009-2012. Rev Clin Esp 2015; 216:51-3. [PMID: 26653048 DOI: 10.1016/j.rce.2015.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 10/02/2015] [Accepted: 10/25/2015] [Indexed: 10/22/2022]
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Guerrero A, Campo M, Olleta JL, Resconi VC, Muela E, Sañudo C. Estudio comparativo de la calidad de la canal y la carne de lechales de raza Churra Tensina y dos tipos ovinos comerciales amparados bajo marcas de calidad. ARCHIVOS DE ZOOTECNIA 2015. [DOI: 10.21071/az.v64i247.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Se estudió la calidad de la canal y la carne de lechales ovinos comerciales de raza Churra Tensina (n= 26) según la época de cría y sacrificio (primavera vs. otoño). Estos corderos se compararon con otros tipos comerciales amparados bajo marcas de calidad reconocidas en el mercado con denominación de Indicación Geográfica Protegida (IGP): Lechazo de Castilla-León (n= 13) y Ternasco de Aragón (n= 13). Todos los corderos fueron criados, seleccionados y sacrificados en condiciones comerciales. Tras el sacrificio, se valoró la calidad de la canal y de la carne en el músculo Longissimus thoracis y lumborum (LTL). Los lechales de Churra Tensina presentaron diferencias según la época de producción, fundamentalmente en las variables relacionadas con la composición tisular de la canal, presentando, los lechales de primavera, un mayor porcentaje de músculo y hueso, y menor de grasa que los de otoño (p≤0,001), así como una mayor proporción de los ácidos grasos C 12:0, CLA, C 20:2 n-3 o C 22:0 (p≤0,001) en la grasa intramuscular. Estas diferencias de composición no se reflejaron en el análisis sensorial, ya sea mediante panel entrenado o consumidores. La carne de los lechales de la raza Churra Tensina presentó una terneza superior (p≤0,001) a la de los productos IGP con los que se comparó, tanto instrumentalmente como sensorialmente (panel entrenado) y una mayor aceptabilidad tanto general, como del sabor y de la terneza (consumidores) (p≤0,001). Los resultados obtenidos reflejarían el potencial de dicha raza para la producción de lechales de calidad, en ambas estaciones del año.
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Olsson SB, Challiss RAJ, Cole M, Gardeniers JGE, Gardner JW, Guerrero A, Hansson BS, Pearce TC. Biosynthetic infochemical communication. BIOINSPIRATION & BIOMIMETICS 2015; 10:043001. [PMID: 26158233 DOI: 10.1088/1748-3190/10/4/043001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
There is an ever-increasing demand for data to be embedded in our environment at ever-decreasing temporal and spatial scales. Whilst current communication and storage technologies generally exploit the electromagnetic properties of media, chemistry offers us a new alternative for nanoscale signaling using molecules as messengers with high information content. Biological systems effectively overcome the challenges of chemical communication using highly specific biosynthetic pathways for signal generation together with specialized protein receptors and nervous systems. Here we consider a new approach for information transmission based upon nature's quintessential example of infochemical communication, the moth pheromone system. To approach the sensitivity, specificity and versatility of infochemical communication seen in nature, we describe an array of biologically-inspired technologies for the production, transmission, detection, and processing of molecular signals. We show how it is possible to implement each step of the moth pheromone pathway for biosynthesis, transmission, receptor protein binding/transduction, and antennal lobe processing of monomolecular and multimolecular signals. For each implemented step, we discuss the value, current limitations, and challenges for the future development and integration of infochemical communication technologies. Together, these building blocks provide a starting point for future technologies that can utilize programmable emission and detection of multimolecular information for a new and robust means of communicating chemical information.
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De La Cruz J, Ruiz-Moreno M, Guerrero A, López-Villodres J, Reyes J, Espartero J, Labajos M, González-Correa J. Role of the catechol group in the antioxidant and neuroprotective effects of virgin olive oil components in rat brain. J Nutr Biochem 2015; 26:549-55. [DOI: 10.1016/j.jnutbio.2014.12.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/20/2014] [Accepted: 12/10/2014] [Indexed: 10/24/2022]
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Carot-Sans G, Muñoz L, Piulachs MD, Guerrero A, Rosell G. Identification and characterization of a fatty acyl reductase from a Spodoptera littoralis female gland involved in pheromone biosynthesis. INSECT MOLECULAR BIOLOGY 2015; 24:82-92. [PMID: 25558806 DOI: 10.1111/imb.12138] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fatty acyl-CoA reductases (FARs), the enzymes that catalyse reduction of a fatty acyl-CoA to the corresponding alcohol in insect pheromone biosynthesis, are postulated to play an important role in determining the proportion of each component in the pheromone blend. For the first time, we have isolated and characterized from the Egyptian cotton leaf worm Spodoptera littoralis (Lepidoptera: Noctuidae) a FAR cDNA (Slit-FAR1), which appeared to be expressed only in the pheromone gland and was undetectable in other female tissues, such as fat body, ovaries, wings, legs or thorax. The encoded protein has been successfully expressed in a recombinant system, and the recombinant enzyme is able to produce the intermediate fatty acid alcohols of the pheromone biosynthesis of S. littoralis from the corresponding acyl-CoA precursors. The kinetic variables Km and Vmax, which have been calculated for each acyl-CoA pheromone precursor, suggest that in S. littoralis pheromone biosynthesis other biosynthetic enzymes (e.g. desaturases, acetyl transferase) should also contribute to the final ratio of components of the pheromone blend. In a phylogenetic analysis, Slit-FAR1 appeared grouped in a cluster of other FARs involved in the pheromone biosynthesis of other insects, with little or non-specificity for the natural pheromone precursors.
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Martínez E, Moreno R, López-Mesonero L, Ruiz M, Vidriales I, Mulero P, Téllez N, Guerrero A, Tellería JJ. EHMTI-0187. A novel ATP1A2 mutation in a case of familial hemiplegic migraine with especially severe attacks. J Headache Pain 2014. [PMCID: PMC4180365 DOI: 10.1186/1129-2377-15-s1-b12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Ruiz M, Pedraza MI, de la Cruz C, Rodríguez C, Hernandez MS, de Lera M, Muñoz I, Moreno R, Barón J, Guerrero A. EHMTI-0334. Chronic migraine in young age: clinical characteristics in a prospective chronic migraine registry. J Headache Pain 2014. [PMCID: PMC4180182 DOI: 10.1186/1129-2377-15-s1-d24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Ruiz M, Barón J, Pedraza MI, Rodriguez C, Guerrero A, Madeleine P, Cuadrado ML, Fernandez-de-las-Peñas C. EHMTI-0243. Pressure pain sensitivity maps of the head are similar in patients with unilateral or bilateral migraine. J Headache Pain 2014. [PMCID: PMC4182190 DOI: 10.1186/1129-2377-15-s1-e12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Zárate-Ramírez L, Romero A, Bengoechea C, Partal P, Guerrero A. Thermo-mechanical and hydrophilic properties of polysaccharide/gluten-based bioplastics. Carbohydr Polym 2014; 112:24-31. [DOI: 10.1016/j.carbpol.2014.05.055] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 04/30/2014] [Accepted: 05/16/2014] [Indexed: 11/24/2022]
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Prat A, Lluch A, Albanell J, Barry WT, Fan C, Chacón JI, Parker JS, Calvo L, Plazaola A, Arcusa A, Seguí-Palmer MA, Burgues O, Ribelles N, Rodriguez-Lescure A, Guerrero A, Ruiz-Borrego M, Munarriz B, López JA, Adamo B, Cheang MCU, Li Y, Hu Z, Gulley ML, Vidal MJ, Pitcher BN, Liu MC, Citron ML, Ellis MJ, Mardis E, Vickery T, Hudis CA, Winer EP, Carey LA, Caballero R, Carrasco E, Martín M, Perou CM, Alba E. Predicting response and survival in chemotherapy-treated triple-negative breast cancer. Br J Cancer 2014; 111:1532-41. [PMID: 25101563 PMCID: PMC4200088 DOI: 10.1038/bjc.2014.444] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 06/26/2014] [Accepted: 07/13/2014] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In this study, we evaluated the ability of gene expression profiles to predict chemotherapy response and survival in triple-negative breast cancer (TNBC). METHODS Gene expression and clinical-pathological data were evaluated in five independent cohorts, including three randomised clinical trials for a total of 1055 patients with TNBC, basal-like disease (BLBC) or both. Previously defined intrinsic molecular subtype and a proliferation signature were determined and tested. Each signature was tested using multivariable logistic regression models (for pCR (pathological complete response)) and Cox models (for survival). Within TNBC, interactions between each signature and the basal-like subtype (vs other subtypes) for predicting either pCR or survival were investigated. RESULTS Within TNBC, all intrinsic subtypes were identified but BLBC predominated (55-81%). Significant associations between genomic signatures and response and survival after chemotherapy were only identified within BLBC and not within TNBC as a whole. In particular, high expression of a previously identified proliferation signature, or low expression of the luminal A signature, was found independently associated with pCR and improved survival following chemotherapy across different cohorts. Significant interaction tests were only obtained between each signature and the BLBC subtype for prediction of chemotherapy response or survival. CONCLUSIONS The proliferation signature predicts response and improved survival after chemotherapy, but only within BLBC. This highlights the clinical implications of TNBC heterogeneity, and suggests that future clinical trials focused on this phenotypic subtype should consider stratifying patients as having BLBC or not.
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Aleixandre-Górriz I, Domínguez-Márquez MV, Martínez-Macías O, Colomina J, Guerrero A. [Prevalence of Staphylococcus aureus carriers of mecA gene susceptible to cefoxitine: OS-MRSA]. REVISTA ESPANOLA DE QUIMIOTERAPIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE QUIMIOTERAPIA 2014; 27:215-216. [PMID: 25229377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Zapatero A, Guerrero A, Maldonado J, Alvarez A, Gonzalez San Segundo C, Cabeza Rodriguez M, Macias V, Pedro-Olive A, Casas F, Boladeras A, Martin de Vidales C, Vazquez de la Torre M, Calvo F. Randomized Phase 3 Trial of Adjuvant Androgen Deprivation in Combination With High-Dose Conformal Radiation Therapy in Intermediate- and High-Risk Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Herrero-Vicent C, Guerrero A, Gavila J, Gozalbo F, Giménez J, Guinot J, Chilet M, Serrano M, Hernández A, Climent M, Porta VG, Ruiz A. A Prognostic Index for Locoregional Recurrence (Lrr) After Neoadjuvant Chemotherapy (Nac). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu328.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Guerrero A, Campo M, Cilla I, Olleta J, Alcalde M, Horcada A, Sañudo C. A Comparison of Laboratory-Based and Home-Based Tests of Consumer Preferences Using Kid and Lamb Meat. J SENS STUD 2014. [DOI: 10.1111/joss.12095] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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López Torrecilla J, Zapatero A, Herruzo I, Calvo FA, Cabeza MA, Palacios A, Guerrero A, Hervás A, Lara P, Ludeña Martínez B, Del Cerro Peñalver E, Nagore G, Sancho G, Mengual JL, Mira M, Mairiño A, Samper P, Pérez S, Castillo I, Martínez Cedrés JC, Ferrer E, Rodriguez S, Maldonado X, Gómez Caamaño A, Ferrer C. Infrastructures, treatment modalities, and workload of radiation oncology departments in Spain with special attention to prostate cancer. Clin Transl Oncol 2014; 16:447-54. [PMID: 24682792 DOI: 10.1007/s12094-013-1121-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 10/08/2013] [Indexed: 11/30/2022]
Abstract
AIM The purpose of the study was to describe infrastructures, treatment modalities, and workload in radiation oncology (RO) in Spain, referred particularly to prostate cancer (PC). METHODS An epidemiologic, cross-sectional study was performed during 2008-2009. A study-specific questionnaire was sent to the 108 RO-registered departments. RESULTS One hundred and two departments answered the survey, and six were contacted by telephone. Centers operated 236 treatment units: 23 (9.7 %) cobalt machines, 37 (15.7 %) mono-energetic linear accelerators, and 176 (74.6 %) multi-energy linear accelerators. Sixty-one (56.4 %) and 33 (30.5 %) departments, respectively, reported intensity-modulated radiation therapy (IMRT) and image-guided RT (IGRT) capabilities; three-dimensional-conformal RT was used in 75.8 % of patients. Virtual simulators were present in 95 departments (88.0 %), 35 use conventional simulators. Fifty-one departments (47.2 %) have brachytherapy units, 38 (35.2 %) perform prostatic implants. Departments saw a mean of 24.9 new patients/week; the number of patients treated annually was 102,054, corresponding to 88.4 % of patients with a RT indication. In 56.5 % of the hospitals, multidisciplinary teams were available to treat PC. CONCLUSIONS Results provide an accurate picture of current situation of RO in Spain, showing a trend toward the progressive introduction of new technologies (IMRT, IGRT, brachytherapy).
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Félix M, Martín-Alfonso J, Romero A, Guerrero A. Development of albumen/soy biobased plastic materials processed by injection molding. J FOOD ENG 2014. [DOI: 10.1016/j.jfoodeng.2013.10.018] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cuevas P, Montoya R, Belles X, Camps F, Coll J, Guerrero A, Riba M. Initial field trials with the synthetic sex pheromone of the processionary mothThaumetopoea pityocampa (Denis and Schiff.). J Chem Ecol 2014; 9:85-93. [PMID: 24408621 DOI: 10.1007/bf00987772] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/1982] [Revised: 04/30/1982] [Indexed: 11/30/2022]
Abstract
Synthetic (Z)-13-hexadecen-11-ynyl acetate has been shown to be highly active in catchingThaumetopoea pityocampa (Denis and Schiff.) males in field trials carried out in different parts of Spain. A variety of formulations containing antioxidants or solid paraffin were tested. Formulations containing 3 and 10% ofE isomer showed a decrease of activity compared with those prepared with pureZ isomer. Dodecyl acetate, also found in the virgin female gland, did not show any synergistic effect when tested in a 9∶1 mixture with the synthetic pheromone. The product exhibited a remarkable persistence of activity under the field conditions even in the absence of stabilizer.
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Zárate-Ramírez L, Romero A, Martínez I, Bengoechea C, Partal P, Guerrero A. Effect of aldehydes on thermomechanical properties of gluten-based bioplastics. FOOD AND BIOPRODUCTS PROCESSING 2014. [DOI: 10.1016/j.fbp.2013.07.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Alastuey I, Pardo J, Guerrero A, Bodi L, Jimenez E, Ariño A, Chiaramello C, Montemuiño S, Aymar N. EP-1829: Impact of different alpha/beta values in biological based DVH. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31947-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Pérez C, Rodríguez MJ, Guerrero A, Margarit C, Martín-Estefanía C, Oteo-Álvaro A, Caballero F. Consenso experto sobre el uso clínico de los tratamientos por vía tópica en el manejo del dolor neuropático periférico. REVISTA DE LA SOCIEDAD ESPAÑOLA DEL DOLOR 2013. [DOI: 10.4321/s1134-80462013000600005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Camps F, Fabriàs G, Gasol V, Guerrero A, Hernández R, Montoya R. Analogs of sex pheromone of processionary moth,Thaumetopoea pityocampa: Synthesis and biological activity. J Chem Ecol 2013; 14:1331-46. [PMID: 24276283 DOI: 10.1007/bf01020138] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/1987] [Accepted: 07/17/1987] [Indexed: 11/27/2022]
Abstract
The synthesis and biological activity of some analogs of (Z)-13-hexadecen-11-ynyl acetate1, the major component of the sex pheromone of the processionary mothThaumetopoea pityocampa is described. The analogs have been formally derived by structural modification of the enyne and acetate functions of the parent compound1. In field tests, trifluoroacetate ester16 and the analog,11, with fluorine substitution at the olefin site, decreased the pheromone action, whereas epoxy derivative,10, from epoxidation of the olefin moiety in1, and propionate ester15 gave synergistic activity. The formate14 had a variable effect according to the composition of the lure. Formal reduction of the enyne to give the acetylene2 was found to retain activity. Alcohols12 and13, resulting from hydrolysis of the enyne1 and acetylene2, respectively, inhibited the action of their parent compounds.
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Riba M, Rosell JA, Eizaguirre M, Canela R, Guerrero A. Identification of a minor component of the sex pheromone ofLeucoptera malifoliella (Lepidoptera, lyonetiidae). J Chem Ecol 2013; 16:1471-83. [PMID: 24263819 DOI: 10.1007/bf01014082] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/1989] [Accepted: 08/14/1989] [Indexed: 11/30/2022]
Abstract
A new minor component in the female volatile extract ofLeucoptera malifoliella (Costa) (Lepidoptera, Lyonetiidae) has been identified as 5,9-dimethyloctadecane (2). The amount detected of the minor compound2 ranged from 4 to 8% in comparison with the major component 5,9-dimethylheptadecane (1). Neither compound has been found in the male volatile extract. The identification has been based on its spectroscopic properties and Chromatographic behavior in comparison with an authentic synthetic sample. The synthesis has been carried out through a short route from 2,6-dimethylcyclohexanone (3). In field tests, compound2 appears to act as a Synergist of the major component1 when mixed with the latter in a 100∶0.1- 5 ratio.
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Quero C, Camps F, Guerrero A. Behavior of processionary males (Thaumetopoea pityocampa) induced by sex pheromone and analogs in a wind tunnel. J Chem Ecol 2013; 21:1957-69. [PMID: 24233899 DOI: 10.1007/bf02033855] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/1995] [Accepted: 07/23/1995] [Indexed: 11/24/2022]
Abstract
The behavioral response of processionary males (Thaumetopoea pityocampa) to the natural pheromone (Z)-13-hexadecen-11-ynyl acetate (1) and structurally related analogs in a wind tunnel is presented. Stereomerically pureZ-1 and a mixture with theE isomer in 80:20 ratio elicited similar attraction responses at 1 µg and higher. The activity was dose-dependent, being optimum at 1 µg with 90% and 80% of males contacting with the source in the presence of theZ-1 andZ/E-1, respectively. 11-Hexadecynyl acetate (2) functioned as a pheromone mimic, being able to induce the complete mate-finding behavioral sequence, although its activity was much lower than that of the pheromone. (Z)-13-Hexadecen-11-ynyl alcohol (3) and, particularly, (Z)-13-hexadecen-11-ynal (4) were potent inhibitors of the upwind flight response in mixtures withZ-1 in 99:1, 95:5, and 91:9 ratios. (Z)-1,1,1-Trifluoro-16-nonadecen-14-yn-2-one (5) also inhibited the response of males to pheromone, particularly in the source contact behavior. Comparison with activity displayed by analogs in field tests is also reported.
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