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Morphology and structural changes in flight muscles of Hypothenemus hampei (Coleoptera: curculionidae) females

López Guillén, Guillermo | Valdéz Carrasco, Jorge M [autor/a] | Cruz López, Leopoldo Caridad [autor/a] | Barrera, Juan F [autor/a] | Malo, Edi A [autor/a] | Rojas, Julio C [autor/a].
Tipo de material: Artículo impreso(a) y electrónico Artículo impreso(a) y electrónico Tema(s): Broca del cafeto | Morfología (Biología) | Oviposición | Control biológico de plagasTema(s) en inglés: Coffee berry borer | Morphology | Oviposition | Pest control biologicalDescriptor(es) geográficos: Región Soconusco (Chiapas, México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Environmental Entomology. volumen 40, número 2 (April 2011), páginas 441-448. --ISSN: 0046-225XNúmero de sistema: 50535Resumen:
Inglés

The coffee berry borer, Hypothenemus hampei (Ferrari), is the major pest of coffee (Coffea spp.) worldwide. After adult eclosion, female borers leave the coffee fruit and disperse to colonize and oviposit in new host fruits. During this process, the flight muscles of females play a crucial role. The objectives of this work were to describe the morphology of the flight muscles of H. hampei females, to quantify changes occurring in the flight muscles during colonization in relation to age and oviposition, and to investigate hormonal control of flight muscle degeneration. Microscopic studies showed that H. hampei females have seven kinds of flight muscles: median dorsolongitudinal, oblique dorsolongitudinal, tergosternal, tergo-trochantinal, sterno-basalar, coxo-basalar, and coxo-subalar. Digital imaging of micrographs revealed that the surface area of flight muscles was significantly greater in flying females than in individuals that had oviposited in fruits. Both age and status of oviposition appear to affect the extent of flight muscle degeneration in this beetle species. Topical application of 2 μg of methoprene, a juvenile hormone analog, induced loss of muscle. This suggested that flight muscle degeneration is controlled hormonally in the coffee berry borer

Recurso en línea: https://bioone.org/journals/Environmental-Entomology/volume-40/issue-2/EN10181/Morphology-and-Structural-Changes-in-Flight-Muscles-of-Hypothenemus-hampei/10.1603/EN10181.full
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The coffee berry borer, Hypothenemus hampei (Ferrari), is the major pest of coffee (Coffea spp.) worldwide. After adult eclosion, female borers leave the coffee fruit and disperse to colonize and oviposit in new host fruits. During this process, the flight muscles of females play a crucial role. The objectives of this work were to describe the morphology of the flight muscles of H. hampei females, to quantify changes occurring in the flight muscles during colonization in relation to age and oviposition, and to investigate hormonal control of flight muscle degeneration. Microscopic studies showed that H. hampei females have seven kinds of flight muscles: median dorsolongitudinal, oblique dorsolongitudinal, tergosternal, tergo-trochantinal, sterno-basalar, coxo-basalar, and coxo-subalar. Digital imaging of micrographs revealed that the surface area of flight muscles was significantly greater in flying females than in individuals that had oviposited in fruits. Both age and status of oviposition appear to affect the extent of flight muscle degeneration in this beetle species. Topical application of 2 μg of methoprene, a juvenile hormone analog, induced loss of muscle. This suggested that flight muscle degeneration is controlled hormonally in the coffee berry borer eng

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