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      Oogenesis pattern and type of ovariole of the parasitoid Palmistichus elaeisis (Hymenoptera: Eulophidae)

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          Abstract

          The knowledge on ovigeny in parasitoids is important for basic studies on physiology and applied biological control. The ovigeny pattern and type of ovariole of the parasitoid Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) were studied in newly-emerged females at seven, 14, 24 and 48 h intervals after their emergence from Tenebrio molitor L. pupae (Coleoptera: Tenebrionidae). Females of P. elaeisis presented ovaries composed by four ovarioles of the meroistic polytrophic type. The yolk accumulation and chorionogenesis in P. elaeisis were concluded 24 h after the female emergence. The 48 h-old females show a high quantity of egg ready for oviposition. These findings can help to improve the mass production of P. elaeisis and the augmentative biological control by using this natural enemy.

          Translated abstract

          O conhecimento da ovigenia em parasitóides é importante para estudos básicos em fisiologia e para o controle biológico aplicado. O padrão de ovigenia e OVIGENY OF Palmistichus elaeisis (HYMENOPTERA: EULOPHIDAE) o tipo de ovaríolo do parasitóide Palmistichus elaeisis Delvare & LaSalle (Hymenopera: Eulophidae) foram estudados em fêmeas recém-emergidas e em intervalos de sete, 14, 24 de 48 horas após a emergência em pupas de Tenebrio molitor L. (Coleoptera: Tenebrionidae). Fêmeas de P. elaesis apresentaram o ovário composto por quatro ovaríolos do tipo meroístico politrófico. A deposição de vitelo e corionogênese em P. elaeisis foram concluídas 24 horas após a emergência. Fêmeas com 48 horas de idade apresentam grande quantidade de ovos prontos para a oviposição. Esses resultados podem ajudar a melhoria da produção massal de P. elaeisis e o controle biológico aplicado com esse parasitóide.

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          Fixation of ejaculated spermatozoa for electron microscopy.

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            Life-history strategies in parasitoid wasps: a comparative analysis of 'ovigeny'

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              The insects. Structure and function

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                Author and article information

                Journal
                aabc
                Anais da Academia Brasileira de Ciências
                An. Acad. Bras. Ciênc.
                Academia Brasileira de Ciências (Rio de Janeiro, RJ, Brazil )
                0001-3765
                1678-2690
                September 2012
                : 84
                : 3
                : 767-774
                Affiliations
                [05] Viçosa MG orgnameUniversidade Federal de Viçosa orgdiv1Departamento de Biologia Geral Brasil
                [01] Rolim de Moura RO orgnameUniversidade Federal de Rondônia orgdiv1Departamento de Agronomia Brasil
                [06] Viçosa MG orgnameUniversidade Federal de Viçosa orgdiv1Bioagro Brasil
                [03] Lavras MG orgnameUniversidade Federal de Lavras orgdiv1Departamento de Entomologia Brasil
                [02] Rio Branco AC orgnameUniversidade Federal do Acre orgdiv1Centro de Ciências Biológicas e da Natureza Brasil
                [04] Petrolina PE orgnameEmpresa Brasileira de Pesquisa Agropecuária orgdiv1Embrapa Semiárido Brasil
                Article
                S0001-37652012000300019 S0001-3765(12)08400319
                10.1590/S0001-37652012000300019
                8b3bc9c5-a1c2-4848-9a5a-42984633a892

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 23 August 2010
                : 05 April 2011
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 34, Pages: 8
                Product

                SciELO Brazil

                Categories
                Biological Sciences

                ovigenia,Controle biológico,inimigo natural,morfologia,ovigeny,natural enemies,morphology,Biological control

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