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Mostrando ítems 1-20 de 40
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Analysis of the gut bacterial community of wild larvae of Anastrepha fraterculus sp. 1: effect of host fruit, environment, and prominent stable associations of the genera Wolbachia, Tatumella, and Enterobacter
Salgueiro, Julieta; Nussenbaum, Ana Laura; Milla, Fabian Horacio; Asimakis, Elias D.; Goane, Lucía; Ruiz, María Josefina; Bachmann, Guillermo Enrique; Vera, María Teresa; Stathopoulou, Panagiota; Bourtzis, Kostas; Deutscher, Ania T.; Lanzavecchia, Silvia Beatriz; Tsiamis, George; Segura, Diego Fernando (Frontiers Media, 2022-03)The genus Anastrepha (Diptera Tephritidae) includes some of the most important fruit fly pests in the Americas. Here, we studied the gut bacterial community of 3rd instar larvae of Anastrepha fraterculus sp. 1 through Next ... -
Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness
Nussenbaum, Ana Laura; Devescovi, Francisco; Bachmann, Guillermo Enrique; Pacelli, Franco; Garbalena, Micaela Soledad; Segura, Diego Fernando (Wiley, 2024-01)Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) is a generalist larval-prepupal parasitoid of true fruit flies (Diptera: Tephritidae). During host-seeking, females use visual information to locate the ... -
Claves olfativas implicadas en la orientación del parasitoide Diachasmimorpha longicaudata hacia sus hospedadores
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Fernández, Patricia; Segura, Diego Fernando (Sociedad Entomológica del Perú, 2022-11)Objetivos: Evaluar el comportamiento de anemotaxis de Diachasmimorpha longicaudata hacia fuentes con presencia potencial de hospedadores. Identificar compuestos orgánicos volátiles provenientes de dichas fuentes que actúen ... -
Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition
Liendo, María Clara; Parreño, María Alejandra; Cladera, Jorge Luis; Vera, María Teresa; Segura, Diego Fernando (2018-04)1. Unravelling the strength and modes of interspecific interactions between resident and introduced species is necessary in order to understand the basis of their coexistence or the displacement of the former by the ... -
Desarrollo de Herramientas para el manejo integrado de Artrópodos perjudiciales. Resúmenes de actividades
Lopez, Silvia Noemi; Sauka, Diego Hernan; Segura, Diego Fernando; Viscarret, Mariana Mabel (INTA Ediciones, 2019)Uno de los problemas más importantes de la agricultura moderna es la pérdida de rendimiento derivada del ataque de invertebrados perjudiciales. El uso de plaguicidas químicos para enfrentarlos se contrapone a la demanda ... -
Differences in sperm storage and remating propensity between adult females of two morphotypes of the Anastrepha fraterculus (Diptera: Tephritidae) cryptic species complex
Abraham, Solana; Rull Gabayet, Juan Antonio; Mendoza, Mariana; Liendo, María Clara; Devescovi, Francisco; Roriz, Alzira K.P.; Kovaleski, Adalesio; Segura, Diego Fernando; Vera, María Teresa (Cambridge University Press, 2014-06)The South American fruit fly, Anastrepha fraterculus, is a complex of cryptic species composed of at least seven morphotypes. Some of them, such as the Peruvian and Brazilian 1 morphotypes (which include Argentinean ... -
Direct and indirect host-related volatile compounds attract a fruit fly parasitoid, Diachasmimorpha longicaudata
Devescovi, Francisco; Fernández, Patricia; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Segura, Diego Fernando (Wiley, 2024-02)Fruit fly pests (Diptera: Tephritidae) are a serious problem for fruit production and for local and international trade. Biological control is increasingly included as a pest control tool within integrated pest management ... -
Discrimination of infested cotton squares by females of Anthonomus grandis
Nussenbaum, Ana Laura; Devescovi, Francisco; Fogar, Mariela Noemi; Almada, Melina Soledad; Salerno, Juan Carlos; Cladera, Jorge Luis; Lecuona, Roberto Eduardo; Segura, Diego Fernando (2017)The avoidance of infested squares of Gossypium hirsutum as oviposition substrate by females of Anthonomus grandis was studied following two approaches. First, the preference for oviposition in infested versus non-infested ... -
Dynamics of genetic variability in Anastrepha fraterculus (Diptera: Tephritidae) during adaptation to laboratory rearing conditions
Parreño, María Alejandra; Scannapieco, Alejandra Carla; Remis, Maria Isabel; Juri, Marianela Lucía; Vera, María Teresa; Segura, Diego Fernando; Cladera, Jorge Luis; Lanzavecchia, Silvia Beatriz (BioMed Central, 2014)Background: Anastrepha fraterculus is one of the most important fruit fly plagues in the American continent and only chemical control is applied in the field to diminish its population densities. A better understanding ... -
Effect of Fruit Volatiles from Native Host Plants on the Sexual Performance of Anastrepha fraterculus sp. 1 Males
Bachmann, Guillermo Enrique; Belliard, Silvina Ahnahi; Devescovi, Francisco; Nussenbaum, Ana Laura; Fernández, Patricia Carina; Vera, María Teresa; Ruiz, María Josefina; Segura, Diego Fernando (MDPI, 2023-02)Anastrepha fraterculus sp.1 males are sexually stimulated by the aroma of fruit of its native host Psidium guajava (guava). Other hosts, which are exotic to A. fraterculus, do not enhance male sexual behavior. Here we ... -
Effects of superparasitism on immature and adult stages of Diachasmimorpha longicaudata Ashmead (Hymenoptera: Braconidae) reared on Ceratitis capitata Wiedemann (Diptera: Tephritidae)
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Cladera, Jorge Luis; Segura, Diego Fernando (2017)The optimal use of available host by parasitoid insects should be favoured by natural selection. For solitary parasitoids, superparasitism (i.e. the egg-laying of several eggs/host) may represent a detrimental phenomenon ... -
Entomophagous insects : predators and parasitoids that shape insect communities and offer valuable tools for insect pest management
Segura, Diego Fernando; Cingolani, María Fernanda; Wajnberg, Eric; Beukeboom, Leo W. (Wiley, 2024-06)This special issue comprises papers presented at the 7th International Entomophagous Insects Conference (IEIC7), in Buenos Aires, Argentina, in 2023. Entomophagous insects, which prey on or parasitize other insects, play ... -
Evaluating mating compatibility within fruit fly cryptic species complexes and the potential role of sex pheromones in pre-mating isolation
Juárez, María Laura; Devescovi, Francisco; Břízová, Radka; Bachmann, Guillermo Enrique; Segura, Diego Fernando; Kalinová, Blanka; Fernandez, Patricia; Ruiz, María Josefina; Yang, Jianquan; Teal, Peter E. A.; Caceres, Carlos; Vreysen, Marc J. B.; Hendrichs, Jorge; Vera, María Teresa (Pensoft Publishers, 2015-11)The study of sexual behavior and the identification of the signals involved in mate recognition between con-specifics are key components that can shed some light, as part of an integrative taxonomic approach, in delimitating ... -
Evolution of pre‐zygotic and post‐zygotic barriers to gene flow among three cryptic species within the Anastrepha fraterculus complex
Rull Gabayet, Juan Antonio; Abraham, Solana; Kovaleski, Adalesio; Segura, Diego Fernando; Mendoza, Mariana; Liendo, María Clara; Vera, Maria Teresa (Wiley, 2013-09)Tropical tephritids are ideally suited for studies on population divergence and speciation because they include species groups undergoing rapid radiation, in which morphologically cryptic species and sister species are ... -
Fruit infestation patterns by Anastrepha fraterculus and Ceratitis capitata reveal that cross-recognition does not lead to complete avoidance of interspecific competition in nature
Devescovi, Francisco; Liendo, María Clara; Bachmann, Guillermo Enrique; Bouvet, Juan Pedro; Milla, Fabian Horacio; Vera, María Teresa; Cladera, Jorge Luis; Segura, Diego Fernando (Wiley, 2015-08)1. The avoidance of parasitized or infested hosts, which is a common phenomenon in parasitic wasps and phytophagous insects, may act both intra- and interspecifically. Most studies on chemically-mediated avoidance of ... -
Genetics and biology of Anastrepha fraterculus: research supporting the use of the sterile insect technique (SIT) to control this pest in Argentina
Cladera, Jorge Luis; Vilardi, Juan Cesar; Juri, Marianela Lucía; Paulin, Laura Elisa; Giardini, Maria Cecilia; Gómez Cendra, Paula Valeria; Segura, Diego Fernando; Lanzavecchia, Silvia Beatriz (BMC, 2014-12)Two species of true fruit flies (taxonomic family Tephritidae) are considered pests of fruit and vegetable production in Argentina: the cosmopolitan Mediterranean fruit fly (Ceratitis capitata Wiedemann) and the new world ... -
Gut bacteriome analysis of Anastrepha fraterculus sp. 1 during the early steps of laboratory colonization
Salgueiro, Julieta; Pimper, Lidia Elena; Segura, Diego Fernando; Milla, Fabian Horacio; Russo, Romina Maria; Asimakis, Elias D.; Stathopoulou, Panagiota; Bourtzis, Kostas; Cladera, Jorge Luis; Tsiamis, George; Lanzavecchia, Silvia Beatriz (Frontiers Media, 2020-10)Microbial communities associated to insect species are involved in essential biological functions such as host nutrition, reproduction and survivability. Main factors have been described as modulators of gut bacterial ... -
Host discrimination in the fruit fly parasitoid Diachasmimorpha longicaudata : evidence from virgin female behaviour and egg distribution patterns
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Cladera, Jorge Luis; Segura, Diego Fernando (Cambridge University Press, 2021-04)Many parasitoid species discriminate already parasitized hosts, thus avoiding larval competition. However, females incur in superparasitism under certain circumstances. Superparasitism is commonly observed in the artificial ... -
Identificación de claves químicas utilizadas por el parasitoide Diachasmimorpha longicaudata Hymenoptera : Braconidae ) para el encuentro de su hospedador
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Fernández, Patricia; Segura, Diego Fernando (Universidad Nacional de La Plata, 2022-10)Objetivos: Evaluar el comportamiento de anemotaxis de Diachasmimorpha longicaudata hacia fuentes con presencia potencial de hospedadores. Identificar compuestos orgánicos volátiles provenientes de dichas fuentes que actúen ... -
Identification and characterization of soluble binding proteins associated with host foraging in the parasitoid wasp Diachasmimorpha longicaudata
Wulff, Juan Pedro; Segura, Diego Fernando; Devescovi, Francisco; Muntaabski, Irina; Milla, Fabian Horacio; Scannapieco, Alejandra Carla; Cladera, Jorge Luis; Lanzavecchia, Silvia Beatriz (Plos, 2021-06)The communication and reproduction of insects are driven by chemical sensing. During this process, chemical compounds are transported across the sensillum lymph to the sensory neurons assisted by different types of soluble ...