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53 resultados encontrados para: TEMA: Coffea canephora
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I. Introducción
II. Diversity and abundance of parasitoid wasps in robusta coffee crops (Coffea canephora Pierre ex Froehner) depend on both the degree of agricultural management and year season in the South of Chiapas, Mexico
III. Conclusiones
IV. Literatura Citada


2.
- Artículo con arbitraje
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Resumen en: Inglés |
Resumen en inglés

While [CO2] effects on growth and secondary chemistry are well characterized for annual plant species, little is known about perennials. Among perennials, production of Coffea arabica and C. canephora (robusta) have enormous economic importance worldwide. Three Arabica cultivars (Bourbon, Catimor, Typica) and robusta coffee were grown from germination to ca. 12 months at four CO2 concentrations: 300, 400, 500 or 600 ppm. There were significant increases in all leaf area and biomass markers in response to [CO2] with significant [CO2] by taxa differences beginning at 122–124 days after sowing (DAS). At 366–368 DAS, CO2 by cultivar variation in growth and biomass response among Arabica cultivars was not significant; however, significant trends in leaf area, branch number and total above-ground biomass were observed between Arabica and robusta. For caffeine concentration, there were significant differences in [CO2] response between Arabica and robusta. A reduction in caffeine in coffee leaves and seeds might result in decreased ability against deterrence, and consequently, an increase in pest pressure. We suggest that the interspecific differences observed (robusta vs. Arabica) may be due to differences in ploidy level (2n = 22 vs. 2n = 4x = 44). Differential quantitative and qualitative responses during early growth and development of Arabica and robusta may have already occurred with recent [CO2] increases, and such differences may be exacerbated, with production and quality consequences, as [CO2] continues to increase.


3.
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Pest management strategies against the coffee berry borer (Coleoptera: Curculionidae: Scolytinae)
Infante, Francisco ;
Contenido en: Journal of Agricultural and Food Chemistry Vol. 66, no. 21 (May 2018), p. 5275-5280 ISSN: 0021-8561
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Resumen en: Inglés |
Resumen en inglés

Coffee (Coffea arabica and C. canephora) is one of the most widely traded agricultural commodities and the main cash crop in ∼80 tropical countries. Among the factors that limit coffee production, the coffee berry borer, Hypothenemus hampei (Ferrari) has been considered the main insect pest, causing losses of over U.S. $500 million dollars annually. Control of this pest has been hindered by two main factors: the cryptic nature of the insect (i.e., protected inside the coffee berry) and the availability of coffee berries in the field allowing the survival of the pest from one generation to the next. Coffee berry borer control has primarily been based on the use of synthetic insecticides. Management strategies have focused on the use of African parasitoids (Cephalonomia stephanoderis, Prorops nasuta, and Phymastichus coffea), fungal entomopathogens (Beauveria bassiana), and insect traps. These approaches have had mixed results. Recent work on the basic biology of the insect has provided novel insights that might be useful in developing novel pest management strategies. For example, the discovery of symbiotic bacteria responsible for caffeine breakdown as part of the coffee berry borer microbiome opens new possibilities for pest management via the disruption of these bacteria. Some chemicals with repellent propieties have been identified, and these have a high potential for field implementation. Finally, the publication of the CBB genome has provided insights on the biology of the insect that will help us to understand why it has been so successful at exploiting the coffee plant. Here I discuss the tools we now have against the CBB and likely control strategies that may be useful in the near future.


4.
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Short-distance dispersal of Hypothenemus hampei (Ferrari) females (Coleoptera: Curculionidae: Scolytidae) during the coffee tree fruiting period
Román Ruíz, Ariana Karina ; Ribeyre, F. (coaut.) ; Rojas, Julio C. (coaut.) ; Cruz López, Leopoldo Caridad (coaut.) ; Barrera, Juan F. (coaut.) ; Dufour, Bernard Pierre (coaut.) ;
Contenido en: Bulletin of Entomological Research Vol. 108, no. 5, (October 2018), p. 593-601 ISSN: 1475-2670
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Resumen en: Inglés |
Resumen en inglés

The coffee berry borer (CBB), Hypothenemus hampei (Ferrari), is a multivoltine species closely associated with coffee crops worldwide, causing severe damage to the bean. In Mexico, as in all tropical regions, CBB survives during the inter-harvest period in residual berries on the ground or in dry berries remaining on the branches, and then disperses in search of the first suitable berries. In this study, we investigated how CBB dispersed from the first infested nodes during the fruiting period of Coffea canephora Pierre, which provides a favourable trophic level for this insect. Forty-five branches equally distributed in 15 coffee trees, with one infested node and four uninfested nodes, were selected. The branches were subjected to three treatments over nine weeks: 1) glue between nodes with full protection, 2) glue between nodes without protection, and 3) no glue and no protection. In addition, 45 CBB-free branches were selected and subjected to the same three treatments. CBB colonization can occur in three ways: 1) from an infested node to an uninfested node on the same branch, 2) from infested berries to uninfested berries within the nodes, 3) from branches to other branches. We also found that CBB dispersal between nodes of the same branches never occurred by walking but by flying. Thus, in this context of coffee berry development and ripening, and unlike the phenological situation of the inter-harvest period, CBB continuously travels very short distances, thus limiting its control.


5.
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Thrips (Thysanoptera) of coffee flowers
Infante, Francisco ; Ortíz, José A. (coaut.) ; Solis Montero, Lislie (coaut.) ; Mound, Laurence A. (coaut.) (1934-) ; Vega, Fernando E. (coaut.) ;
Contenido en: Annals of the Entomological Society of America Vol. 110, no. 3 (May 2017), p. 329–336 ISSN: 1809-127X
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Resumen en: Inglés |
Resumen en inglés

Thrips (Thysanoptera) are opportunistic insects that exhibit a wide range of life histories. Most species are either fungivorous or phytophagous, while a few are predators. In coffee agroecosystems, the presence of these insects is noticeable, especially when coffee is flowering. The identity of thrips and the role they might be playing on coffee flowers is unknown. We conducted a survey of thrips in 30 commercial coffee plantations of Chiapas, Mexico, with the aim to investigate the species composition of thrips associated with coffee flowers and to determine whether they were carrying coffee pollen on their bodies. Thrips were collected at random in ~1 ha. Coffee branches were shaken against a plastic tray to separate insects from flowers. A total of 42 thrips species in 24 genera and five families were identified. The most common species were Karnyothrips merrilli Watson, Haplothrips gowdeyi (Franklin), Frankliniella difficilis Hood, Frankliniella gardeniae Moulton, Frankliniella insularis (Franklin), Frankliniella invasor Sakimura, Frankliniella parvula Hood, and Frankliniella varipes Moulton. Of these species, Karnyothrips merrilli is considered a predator of thrips and other small arthropods, while the other species are phytophagous. We assumed these thrips might be living on other plants and shift to coffee due to the abundance of pollen and nectar during the flowering season. Using microscopy, we examined the bodies of thrips caught in sticky traps. We found coffee pollen on the bodies of seven thrips species, and discuss the possibility of these thrips serving as coffee pollinators.


6.
- Artículo de divulgación
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Café robusta, ¿héroe o villano?
Barrera, Juan F. ;
Contenido en: ECOfronteras Vol. 20, no. 58 (septiembre/diciembre 2016), p. 14-17 ISSN: 2007-4549
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Resumen en español

Según fuentes históricas, el café arábica ingresó por primera vez a México durante el siglo XVIII procedente de Cuba, isla a la llegó desde las Antillas menores. Provenía de semillas producidas por un cafeto que los holandeses habían obsequiado a Luis XIV, el “rey sol”, en 1714; él ordenó que semillas de esta planta fuesen llevadas a las colonias del reino allende el mar.


7.
- Artículo con arbitraje
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Coffee volatiles induced after mechanical injury and beetle herbivory attract the coffee berry borer and two of its parasitoids
Cruz López, Leopoldo Caridad ; Díaz Díaz, Bernardino (coaut.) ; Rojas, Julio C. (coaut.) ;
Contenido en: Arthropod-Plant Interactions Vol. 10, no. 2 (April 2016), p. 151–159 ISSN: 1872-8847
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Resumen en: Inglés |
Resumen en inglés

The coffee berry borer (CBB), Hypothenemus hampei (Ferrari), is the most important insect pest of coffee worldwide. In this study, we used headspace solid-phase microextraction coupled with gas chromatography–mass spectrometry to sample and identify volatile compounds from Robusta coffee berries, Coffea canephora Pierre ex Froehner, infested with CBB and with mechanical damage. Furthermore, we evaluated the behavioral responses of the CBB and two of its parasitoids, Prorops nasuta Waterstone and Phymastichus coffea LaSalle, to three selected coffee volatile compounds in a Y-tube olfactometer. We found in the effluvia of red coffee berry compounds not previously reported for this coffee species. Our results show that Robusta coffee berries release induced volatiles either by insect herbivory or by mechanical damage. Small amount of butyl acetate, unknown compound 2, a-longipinene, longiborneol and longiborneol acetate are produced only in infested coffee berries fruits. Quantitatively, nine compounds account for the difference between healthy berries, infested, or mechanically damaged berries. Trans -ocimene, 4,8-dimethyl-3,7-nonadien-2-ol, a-copaene and kaurene increased amount levels in infested berries, while amount of methyl salicylate and linalool increased in mechanically damaged coffee berries. The olfactometric bioassays showed that CBB females and its two parasitoids were attracted to methyl salicylate. In addition, H. hampei and P. nasuta were attracted to linalool, and P. nasuta and P. coffea were attracted to trans-ocimene.


8.
- Artículo con arbitraje
Identification and origin of host-associated volatiles attractive to Prorops nasuta, a parasitoid of the coffee berry borer
Román Ruíz, Ariana Karina ; Malo Rivera, Edi Álvaro (coaut.) ; Huerta Palacios, Graciela (coaut.) ; Castillo Vera, Alfredo (coaut.) ; Barrera, Juan F. (coaut.) ; Rojas, Julio C. (coaut.) ;
Contenido en: Arthropod-Plant Interactions Vol. 6, no. 4 (December 2012), p. 611-620 ISSN: 1872-8855
Resumen en: Inglés |
Resumen en inglés

Previous studies have shown that prepupae/pupae and dust/frass from Hypothenemus hampei (Ferrari) reared on coffee berries were attractive to its parasitoid Prorops nasuta Waterston, while the same biological materials obtained from an artificial diet were not. In this study, we identified the volatiles from prepupae/pupae and dust/frass from H. hampei reared on Coffea canephora Pierre ex Froehner berries and artificial diet by gas chromatography coupled with mass spectrometry (GC–MS), evaluated their behavioural activity, and investigated the possible origin of the kairomones in the H. hampei dust/frass attractive to P. nasuta. The GC–MS analysis indicated that 24 peaks were consistently present in the headspace volatiles of dust/frass from H. hampei reared on coffee berries, 18 of these peaks were identified. Nineteen compounds were found in the dust/frass from H. hampei reared on an artificial diet. The compounds 1-octen-3-ol, limonene, n-tridecane, n-tetradecane, longifolene, n-pentadecane and n-heptadecane were common in dust/frass from H. hampei reared on coffee berries and artificial diet. Parasitoids were more attracted to 3-octanone, limonene, longifolene and n-dodecane compared to clean air. In contrast, P. nasuta preferred clean air to n-tetradecane. The rest of the compounds did not influence the behaviour of parasitoids.

Two compounds were released by prepupae/pupae from H. hampei obtained from coffee berries, whereas six compounds were emitted by prepupae/pupae from the artificial diet. The compounds n-hexadecane and n-heptadecane were found in both types of prepupae/pupae. Parasitoids were more attracted to n-hexadecane than to clean air. In contrast, females did not show any preference for n-heptadecane or clean air. Among the compounds identified from dust/frass from H. hampei attractive to P. nasuta, only longifolene was found in the healthy C. canephora berry volatiles. Four species of fungi were isolated from the dust/frass of H. hampei, including Fusarium solani (Mart.) Sacc., Penicillium crustosum Thom, Aspergillus aculeatus lizuka and Mucor sp. Among the compounds identified in the dust/frass from H. hampei attractive to P. nasuta females, only 3-octanone was detected in the volatiles from F. solani and P. crustosum.


9.
Tesis - Maestría
Identificación y fuente de emisión de las kairomonas usadas por Prorops nasuta durante la localización de su huésped / Ariana Karina Román Ruíz
Román Ruíz, Ariana Karina ; Rojas, Julio C. (tutor) ; Malo Rivera, Edi Álvaro (asesor) ; Barrera, Juan F. (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2011
Clasificación: TE/633.73976 / R65
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Índice | Resumen en: Español |
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Prorops nasuta Waterston es atraído a los volátiles provenientes de los desechos alimenticios y fecales (DAF) y estados inmaduros de su huésped Hypothenemus hampei (Ferrari) criados en frutos de café, pero esto no ocurre cuando provienen de huéspedes criados en una dieta artificial. Los volátiles emitidos por los DAF pueden provenir de los frutos de café, de los estados inmaduros de H. hampei o de los microorganismos asociados al complejo café-broca. En el presente estudio se identificó químicamente, se evaluaron los compuestos identificados y se determinó la fuente de emisión de las kairomonas asociadas a los DAF y estados inmaduros usadas por P. nasuta, además se comparó el perfil químico de los DAF y estados inmaduros criados en café y dieta artificial. Los volátiles de los DAF fueron colectados por microextracción en fase sólida (MEFS) e identificados por cromatografía de gases acoplado a espectrometría de masas (CG-EM). En total, 24 picos fueron encontrados consistentemente en los volátiles de los DAF, 18 de estos picos fueron identificados. Se encontró que la 3-octanona, n-dodecano, limoneno y longifoleno fueron atractivos a P.nasuta, y el n-tetradecano fue repelente al mismo. Se determinó que la 3-octanona fue producida por los hongos Fusarium solani (Mart.) Sacc. y Pencillium crustosum Thom, el longifoleno y limoneno por los frutos de café, mientras que el n-dodecano no fue producido ni por el café ni por los hongos. También se encontró que el 1-octen-3-ol, el a-copaeno, el limoneno, y los hidrocarburos de n-C13, n-C14, n-C15 y n-C17 fueron compuestos comunes en DAF provenientes de frutos de café y de dieta artificial.

La concentración de los compuestos fue mayor en los DAF de café, con excepción del 1- octen-3-ol. Los hidrocarburos n-C16 y n-C17 se encontraron en los estados inmaduros de H. hampei criados en frutos de café y en dieta artificial, presentándose mayor concentración en los criados en café. El compuesto n-C16 fue atractivo a los parasitoides cuando fue evaluado en un olfatómetro.

Índice

Índice de Cuadros
Resumen
Introducción
Objetivos
Objetivo general
Objetivos específicos
Materiales y Métodos
Material biológico
Determinación de los microorganismos responsables de la emisión de los “compuestos de interés”
Identificación de los hongos encontrados en los DAF
Colecta de volátiles por microextracción en fase sólida (MEFS)
Identificación química
Identificación química de las kairomonas provenientes de los DAF de broca criada en café
• Preparación de material para la colecta de volátiles por MEFS
• Pruebas comportamentales usando olfatómetro tipo “Y”
Fuente de emisión de las kairomonas de los DAF de la broca criada en café
Preparación de los DAF y estados inmaduros de la broca criada en dieta artificial para colecta de volátiles
Análisis estadístico
Resultados
Identificación química de las kairomonas provenientes de los DAF de broca criada en café
Fuente de emisión de las kairomonas de los DAF de la broca criada en café
Preparación de los DAF y estados inmaduros de la broca criada en dieta artificial para colecta de volátiles
Discusión
Conclusión
Literatura Citada
Anexos


10.
Capítulo de libro - Memoria en extenso sin arbitraje
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Respuesta de Hypothenemus hampei (Coleoptera: Curculionidae) a trampas cebadas con mezclas de metanol-etanol en una plantación de café robusta
Barrera, Juan F. (autor) ; Herrera Múñoz, Joel (autor) ; Valle Mora, Javier Francisco (autor) ; Gómez Ruiz, Jaime (autor) ;
Contenido en: Entomología mexicana 2007, volumen 6 Texcoco, Estado de México, México : Sociedad Mexicana de Entomología : Colegio de Postgraduados, 2007 Vol. 6, no. 1, p. 189-193 ISBN:968-8395-17-X
Bibliotecas: San Cristóbal , Tapachula
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