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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 ... -
Antibiotic treatment reduces fecundity and nutrient content in females of Anastrepha fraterculus (Diptera: Tephritidae) in a diet dependent way
Goane, Lucía; Salgueiro, Julieta; Medina Pereyra, Pilar; Arce, Osvaldo Ernesto Antonio; Ruiz, María Josefina; Nussenbaum, Ana Laura; Segura, Diego Fernando; Vera, María Teresa (Elsevier, 2022-06)Insect microbiota, particularly, gut bacteria has recently gained especial attention in Tephritidae fruit flies, being Enterobacteriaceae the predominant bacterial group. This bacterial group has been postulated to contribute ... -
ARN de interferencia como herramienta para el manejo sustentable del picudo del algodonero en algodón argentino
Turica, Mariana Daniela; Pedarros, Analía Soledad; Salvador, Ricardo; Nussenbaum, Ana Laura; Niz, José María; Berretta, Marcelo Facundo; Gonzalez, Ariela Judith; Hopp, Horacio Esteban; Maskin, Laura; Lewi, Dalia Marcela (REDBIO, 2025-06)Introducción: En el INTA obtuvimos las primeras plantas de algodón transgénico (Gossypium hirsutum) desarrolladas en Argentina. Están diseñadas para producir ARNi para silenciar específicamente la expresión de un gen ... -
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 ... -
Culturable bacteria associated with Anastrepha fraterculus sp. 1 : in search of nitrogen-fixing symbionts with biotechnological potential
Salgueiro, Julieta; Nussenbaum, Ana Laura; Marchesini, María Inés; Garbalena, Micaela Soledad; Brambilla, Silvina Maricel; Belliard, Silvina Ahnahi; Cuadros, Fabián; Núñez, Mauricio; Yáñez, Carolina; Juárez, María Laura; Vera, María Teresa; Lanzavecchia, Silvia Beatriz; Tsiamis, George; Segura, Diego Fernando (Wiley, 2025-02)Anastrepha fraterculus is a significant fruit fly pest in Argentina and other South American countries. Previous studies showed the key role of gut bacteria in the protection and nutrient assimilation of fruit flies, ... -
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 ... -
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 ... -
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 ... -
Innate Host Habitat Preference in the Parasitoid Diachasmimorpha longicaudata: Functional Significance and Modifications through Learning
Segura, Diego Fernando; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Devescovi, Francisco; Bachmann, Guillermo Enrique; Corley, Juan Carlos; Ovruski Alderete, Sergio Marcelo; Cladera, Jorge Luis (2016)Parasitoids searching for polyphagous herbivores can find their hosts in a variety of habitats. Under this scenario, chemical cues from the host habitat (not related to the host) represent poor indicators of host location. ... -
Male sexual enhancement after methoprene treatment in Anastrepha fraterculus (Diptera: Tephritidae) : a sustained response that does not fade away after sexual maturation
Bachmann, Guillermo Enrique; Devescovi, Francisco; Nussenbaum, Ana Laura; Cladera, Jorge Luis; Fernandez, Patricia Carina; Vera, María Teresa; Teal, Peter E.A.; Segura, Diego Fernando (2017)The juvenile hormone (JH) of insects triggers physiological changes related to reproduction in adults of both sexes. Methoprene is a sesquiterpene with some effects that are analogous to those of JH. Treatments with ... -
Mate choice confers direct benefits to females of Anastrepha fraterculus (Diptera: Tephritidae)
Bachmann, Guillermo Enrique; Devescovi, Francisco; Nussenbaum, Ana Laura; Milla, Fabian Horacio; Shelly, Todd E.; Cladera, Jorge Luis; Fernandez, Patricia; Vera, María Teresa; Segura, Diego Fernando (Public Library of Science, 2019-06)Exposure to plant compounds and analogues of juvenile hormone (JH) increase male mating success in several species of tephritid fruit flies. Most of these species exhibit a lek mating system, characterized by active female ... -
Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
Garcia, Carolina Vanesa; Tcach, Mauricio Alfredo; Simonella, Maria Alejandra; Almada, Melina Soledad; González, Julio; Lanzavecchia, Silvia Beatriz; Nussenbaum, Ana Laura (Wiley, 2025-10)The cotton boll weevil (Anthonomus grandis grandis Boheman) (Coleoptera: Curculionidae) is the main pest of the cotton (Gossypium hirsutum Linnaeus) (Malvaceae) crop in South America. First reported in Argentina in 1993, ... -
Parámetros biológicos y poblacionales del picudo del algodonero (Anthonomus grandis) criado en condiciones controladas sobre dieta artificial
Nussenbaum, Ana Laura; Lecuona, Roberto Eduardo (INTA Ediciones, 2015)El picudo del algodonero, Anthonomus grandis, es considerado una de las más importantes plagas que afectan los cultivos de algodón en América. El daño en el algodón se genera cuando los adultos se alimentan y oviponen sobre ... -
Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae
Lopez-Gialdi, Agustín I.; Nussenbaum, Ana Laura; Fernandez, Paula Del Carmen; Segura, Diego Fernando; Fernandez, Patricia Carina; Di Rienzo, Julio; Machado Assefh, Cristina Renata; Álvarez, Adriana E. (Wiley, 2025)BACKGROUND: Foliar senescence is a physiological process involving the degradation of chlorophyll and proteins, with nitrogen compounds, especially amino acids, mobilised to other parts of the plant. This process enriches ... -
Screening de cepas de los Hongos Entomopatogenos Beauveria bassiana y Metarhizium anisopliae, para el control Microbiano de Oebalus poecilus
Rampoldi, Andres; Kruger, Raúl; Posadas, Julieta Beatriz; Nussenbaum, Ana Laura; Lecuona, Roberto Eduardo (Asociación Argentina de Fitopatólogos, 2012)La chinche de la panoja, Oebalus poecilus (Dallas) Stal 1862 (Heteroptera: Pentatomidae), es una plaga que está distribuida en toda la región arrocera de la Argentina. Se alimenta de granos en desarrollo de varias especies ... -
Técnica de sexado de pupas de Anthonomus grandis (Coleoptera: Curculionidae): una forma rápida y fácil de sexar para estudios biológicos
Almada, Melina Soledad; Nussenbaum, Ana Laura (Ediciones INTA, 2020-08)El picudo del algodonero, Anthonomus grandis Boheman (Coleoptera: Curculionidae), es considerado una de las plagas más perjudiciales del cultivo de algodón en América. Muchos estudios requieren la determinación del sexo ...