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Palynology of Carica and Vasconcellea (Caricaceae) Palinología de Carica y Vasconcellea (Caricaceae)
Sandoval Sierra Claudia Lorena,Caetano Creucí María,Lagos Túlio César,Chávez-Servia José Luis
Acta Agronómica , 2006,
Abstract: Palynology of Carica and Vasconcellea (Caricaceae). The pollen of C. papaya and agreements of Vasconcellea cauli ora, V. cundinamarcensis, V. crassipetala, V. goudotiana, V. x heilbornii var. chrysopetala, V. longi ora and V. sphaerocarpa collected in the Colombian Coffee Growing Zone, using the technique of acetolisis for optic microscopy and the xation procedure with glutaraldehide, dehydration and ionization with gold-palade, for scanning electronic microscopy was described. The pollen grains were characterized using descriptors, which include the characters of taxonomic value for pollen identi cation, genetically determined. The most important are the number, position and character of the aperture (NPC) and exine ornamentation and strati cation. The pollen is of medium size for both genera, tricolporate, zonoaperturate, prolate-spheroid to subprolate, isopolar radial symmetry, tectate, dug, foveolate, with columelas. These characters have demonstrated a great contribution to the taxonomy of Caricaceae because the cluster analysis allowed distinguish very well the two genera. Se describe el polen de C. papaya y accesiones de Vasconcellea cauli ora, V. cundinamarcensis, V. crassipetala, V. goudotiana, V. x heilbornii var. chrysopetala, V. longi ora y V. sphaerocarpa recolectadas en la Zona Cafetera de Colombia, empleando la técnica de acetólisis para microscopía óptica y el procedimiento de jación con glutaraldehído, deshidratación e ionización con oro paladio, para microscopía electrónica de barrido (MEB). Se caracterizaron los granos de polen por medio de una lista de descriptores que incluyeron los caracteres de valor taxonómico para identi cación del polen, genéticamente determinados, siendo los más importantes el número, posición y carácter de la abertura (NPC) y la ornamentación y estrati cación de la exina. Para los dos géneros el polen es mediano, tricolporado, zonoaperturado, prolato–esferoidal a subprolato, de simetría radial isopolar, tectado, cavado, foveolado, con columelas. Estos caracteres han demostrado gran aporte a la taxonomía de Caricaceae, ya que el análisis de agrupamiento permitió diferenciar bien a los dos géneros.
Características Físico-Químicas del Látex de Papayuelo (Vasconcellea cundinamarcensis Badillo, Caricaceae) Physico-Chemical Characteristics of Papayuelo Latex (Vasconcellea Cundinamarcensis Badillo, Caricaceae)  [cached]
Leslie V Vidal,Víctor L Finot,Karina del C Mora,Fernando A Venegas
Información Tecnológica , 2009,
Abstract: Se determinó el rendimiento y la actividad enzimática de la papaína presente en el látex de papayuelo (Vasconcellea cundinamarcensis), cultivado en Cobquecura, VIII región del Bío-Bío, Chile, durante un a o. Entre enero y diciembre, las plantas, frutos y látex, obtenidos de frutos inmaduros, fueron caracterizados con el propósito de conocer el comportamiento del cultivo a través de las estaciones del a o, y comprender las posibles relaciones entre los parámetros estudiados. El dise o experimental fue completamente aleatorio y los datos se procesaron mediante un ANDEVA y prueba de rangos múltiples de Duncan. Se encontró diferencia estadística significativa entre estaciones en cuanto al desarrollo de la planta y sus características. Los mayores rendimientos de látex se obtuvieron en la estación de primavera, mientras que la actividad enzimática se mantuvo constante durante el a o de estudio. A study to determine the yield and enzymatic activity of papain present in the latex obtained from papayuelo fruit (Vasconcellea cundinamarcensis ) cultivated in Cobquecura, VIII Bío-Bío Region in Chile, during one year was done. Between January and December the papayuelo plants, fruits and latex obtained from unripe fruits were characterized. The objective of the study was to know the species behavior through the seasons and the relation between the parameters studied. The experimental design was completely random, and the data were processed through ANOVA and Duncan’s multiple range test. A significant statistical difference in plant growth and plan characteristics between seasons was found. The higher latex yields were obtained in spring, whereas the enzymatic activity was constant through the year.
Características Físico-Químicas del Látex de Papayuelo (Vasconcellea cundinamarcensis Badillo, Caricaceae)
Vidal,Leslie V; Finot,Víctor L; Mora,Karina del C; Venegas,Fernando A;
Información tecnológica , 2009, DOI: 10.4067/S0718-07642009000600012
Abstract: a study to determine the yield and enzymatic activity of papain present in the latex obtained from papayuelo fruit (vasconcellea cundinamarcensis ) cultivated in cobquecura, viii bío-bío region in chile, during one year was done. between january and december the papayuelo plants, fruits and latex obtained from unripe fruits were characterized. the objective of the study was to know the species behavior through the seasons and the relation between the parameters studied. the experimental design was completely random, and the data were processed through anova and duncan?s multiple range test. a significant statistical difference in plant growth and plan characteristics between seasons was found. the higher latex yields were obtained in spring, whereas the enzymatic activity was constant through the year.
áreas potenciales para colectas del Género Vasconcellea Badillo en Venezuela Potential areas for collecting the Vasconcellea Badillo genus in Venezuela
Dilia Rodríguez,Carlos Marín,Hernando Quecan,Rafael Ortiz
Bioagro , 2005,
Abstract: En Venezuela, dentro de la familia Caricaceae, se han reportado las especies silvestres Vasconcellea. cundinamarcensis Badillo, V. cauliflora (Jacq.) A. DC, V. microcarpa subsp microcarpa (Jacq.) A DC. y V. microcarpa subsp pilifera (V. M. Badillo) V. M. Badillo (endémica de los andes en los estados Mérida y Lara). La especie V. cundinamarcensis representa un material promisorio de importancia comercial local en los estados andinos y V. cauliflora está se alada como un material resistente a virus, con gran potencial para usos en mejoramiento. El presente trabajo fue elaborado para determinar las áreas geográficas potenciales para colectas de las especies de este género. Con datos recopilados tanto de herbarios como de nuevos puntos de colectas realizadas en el país se elaboró una base de datos que posteriormente fue analizada utilizando el programa FloraMap v 1.1, 2001. Los resultados permitieron observar que las especies V. cauliflora y V. microcarpa tienen probablemente una amplia distribución en el país, mientras que la especie V. cundinamarcensis estaría limitada a la región alta andina. In Venezuela the following wild species of Caricaceae have been reported: V. cundinamarcensis Badillo, V. cauliflora (Jacq.) A. DC., V. microcarpa subsp microcarpa (Jacq.) A. DC and V. microcarpa subsp pilifera (V.M. Badillo) V.M. Badillo (endemic of the Andean of Mérida and Lara States). V. cundinamarcensis represents a promissory material with local commercial importance in the Andean states while V. cauliflora has been indicated as a resistant to virus material, with great potential for plant breeding. The objective of this paper was to determine potential areas for collects of these species. With information compiled from herbarium and from new collects realized in the country, a database was elaborated, and later they were analyzed using the software FloraMap v. 1.1 2001. The results showed that the species V. cauliflora and V. microcarpa probably have a wide distribution in the country, whereas V. cundinamarcensis would be limited to the high Andean region.
In vitro morphogenic responses of Vasconcellea chilensis Planch. ex A. DC (Caricaceae)  [cached]
Jordan Z. Miguel
Agronomía Colombiana , 2011,
Abstract: Multiple shoot formation was induced in vitro on nodal sections excised from adult “palo gordo” plants of Vasconcellea chilensis ex Carica chilensis, in the presence of relatively high levels of thidiazuron (TDZ), indole-3- acetic acid (IAA) and organic addenda included in the WPM formulation including casein hydrolysate, adenine sulfate and cystein. Multiple shoots appeared simultaneously in strands or clusters on the surface of the explants; usually two or more clusters with new shoots were initiated, all showing synchronous growth. In subculture, in the presence of indole-3-butyric acid (IBA) as single hormone, root formation did not take place; the shoots turned green instead, evidenced elongation and development of new shoots at the base of the explants. Other explants, such as petioles and leaf sections exhibited callus initiation upon the vascular system after 4-5 weeks; however, this tissue turned brown later on and died.
Modelado de la Cinética de Secado de la Papaya Chilena (Vasconcellea pubescens) Modeling of Drying Kinetic of Chilean Papaya (Vasconcellea pubescens)  [cached]
Antonio A Vega,Roberto A Lemus
Información Tecnológica , 2006,
Abstract: Se ha estudiado y modelado la cinética de secado por aire caliente de papaya chilena (Vasconcellea pubescens) a diferentes temperaturas (40, 50, 60, 70 y 80o C) con velocidad de aire de 2.0 ± 0.2 m·s-1. Durante las experiencias se observaron los periodos de inducción, velocidad constante y decreciente. Los modelos matemáticos aplicados fueron el modelo de Newton, Henderson-Pabis y Page. Además se evaluó la calidad de ajuste de estos modelos por medio del coeficiente de regresión lineal, suma de errores cuadrados, raíz media de los errores cuadrados y Chi-cuadrado. Los parámetros cinéticos de cada modelo presentaron la dependencia usual con la temperatura, y fueron evaluadas con la ecuación de Arrhenius. Al comparar los valores experimentales con los calculados, se demostró que el modelo de Page obtuvo la mejor calidad de ajuste en cada curva de secado, representando una excelente herramienta para estimar el tiempo de secado de este producto. The kinetics of hot air drying of chilean papaya (Vasconcellea pubescens) was studied and modeled at different temperatures (40, 50, 60, 70 & 80o C) and air velocity of 2.0 ± 0.2 m·s-1. The induction, constant, and fallingrate periods were observed during the experimentation. The mathematical models of Newton, Henderson-Pabis and Page were applied. Also evaluated were the quality of fit to the models using the coefficient of linear regression, the sum square error, the root mean square error and the Chisquare test. The kinetic parameters of each model showed the usual dependence on temperature, and were evaluated using the Arrhenius equation. In comparing experimental data with calculated values, it was demonstrated that the Page model attained the best fit for every drying curve, representing an excellent tool for the estimation of the drying time of this product.
Susceptibilidad de Vasconcellea cauliflora al virus de la mancha anillada de la lechosa Susceptibility of Vasconcellea cauliflora to Papaya ringspot virus
A Gonzalez,G Trujillo
Revista de la Facultad de Agronomía , 2005,
Abstract: Esta investigación demostró la susceptibilidad de Vasconcellea cauliflora, especie que ha sido considerada como resistente al virus de la mancha anillada de la lechosa (PRSV-P). La transmisión de la enfermedad se logró mediante la inoculación mecánica de una cepa severa del PRSV-P en plantas de 60 días de edad. Estas evidenciaron síntomas de necrosis del cogollo en 8,3% bajo condiciones de invernadero a 25,15oC y 78,68% HR promedio. Bajo condiciones de campo en la Facultad de Agronomía (UCV), Maracay (440 msnm), se contabilizó el 8,6% de plantas inoculadas con síntomas típicos de la enfermedad a los siete días del trasplante. Posteriormente se realizó un ensayo bajo condiciones controladas en cámara de crecimiento. Las plantas inoculadas fueron expuestas a tres tratamientos de temperatura e intensidad lumínica: T1= 29oC y 6300 lux; T2= 27oC y 5500 lux y T3= 25oC y 4200 lux; con fotoperiodo de 16 horas de luz y 75,5% HR promedio. Los resultados demostraron la transmisión del PRSV-P en 82, 86 y 47% respectivamente; la sintomatología viral se corroboró mediante el uso de ELISA. Estos resultados cuestionan el uso de esta especie como fuente de genes de resistencia al PRSV-P en los programas de mejoramiento de lechosa. This work demonstrated the susceptibility of Vasconcellea cauliflora, a species considered as virus resistant to Papaya ringspot virus (PRSV-P). Disease transmission by mechanical inoculation of PRSV-P severe strain on 60 days old plants was corroborated. Under greenhouse conditions with average values of 25.15oC and 78.68% RH, 8.3% of plants inoculated with the severe strain showed apical necrosis. At the Facultad de Agronomía (UCV), Maracay (440 msnm) under field conditions, 8.6% of inoculated plants showed typical symptoms of the disease seven days after beings transplanted. Subsequently, an inoculation test was done in three growth chamber conditions: T1=29oC and 6300 lux; T2= 27oC and 5500 lux and T3= 25oC and 4200 lux; the daily time was fixed at 16 h, and the relative humidity was about 75.5% on average. Systemic symptoms were observed in 82, 86 and 47% of plants in treatments T1, T2 y T3 respectively. These results were consistent with the ELISA test. The susceptibility of V. cauliflora to the local severe strain of PRSV-P was influenced by temperature and light intensity conditions. This questions the role of this species in search for PRSV-P resistance genes in papaya breeding programs.
Susceptibilidad de Vasconcellea cauliflora al virus de la mancha anillada de la lechosa
Gonzalez,A; Trujillo,G;
Revista de la Facultad de Agronomía , 2005,
Abstract: this work demonstrated the susceptibility of vasconcellea cauliflora, a species considered as virus resistant to papaya ringspot virus (prsv-p). disease transmission by mechanical inoculation of prsv-p severe strain on 60 days old plants was corroborated. under greenhouse conditions with average values of 25.15oc and 78.68% rh, 8.3% of plants inoculated with the severe strain showed apical necrosis. at the facultad de agronomía (ucv), maracay (440 msnm) under field conditions, 8.6% of inoculated plants showed typical symptoms of the disease seven days after beings transplanted. subsequently, an inoculation test was done in three growth chamber conditions: t1=29oc and 6300 lux; t2= 27oc and 5500 lux and t3= 25oc and 4200 lux; the daily time was fixed at 16 h, and the relative humidity was about 75.5% on average. systemic symptoms were observed in 82, 86 and 47% of plants in treatments t1, t2 y t3 respectively. these results were consistent with the elisa test. the susceptibility of v. cauliflora to the local severe strain of prsv-p was influenced by temperature and light intensity conditions. this questions the role of this species in search for prsv-p resistance genes in papaya breeding programs.
Estudo morfo-anat?mico de folhas de Jacaratia spinosa (Aubl.) A.DC. (Caricaceae)
Paoli, Adelita A. Sartori;Pagano, Sérgio Nereu;
Acta Botanica Brasilica , 1988, DOI: 10.1590/S0102-33061988000300019
Abstract: morphological and anatomical aspects of leaves of jacaratia spinosa (aubl.) a.dc. (caricaceae) were studied in detail. the leaf blade shows a dorsiventral organization, anomocytic stomata, glands, laticifers of the articulated anastomosed type and a papillary abaxial epidermis. the venation is brochidodromous ending in rings at the leaf margins.
Biologia da poliniza??o de Jacaratia spinosa (AUBL) ADC. (CARICACEAE) em mata residual do sudeste brasileiro
PIRATELLI, A. J.;PI?A-RODRIGUES, F. C. M.;GANDARA, F. B.;SANTOS, E. M. G.;COSTA, L. G. S.;
Revista Brasileira de Biologia , 1998, DOI: 10.1590/S0034-71081998000400015
Abstract: the pollination biology of jacaratia spinosa (aubl) adc. (caricaceae) was studied in mata de santa genebra, campinas municipality, s?o paulo state, brazil (20o54's; 47o05'w). data from floral anthesis, nectar volume and sugar concentration, pollen viability, stigma receptivity, location of scent glands, reproduction systems and main visitors/potential pollinators were obtained. the species is dioicious and the masculine plants flourish for a larger period (52 days) than the feminine ones (22 days). most of the flowers has night anthesis, lasting the masculine ones about 24 hours and the feminine ones, 48 hours. the masculine ones produce on the average, 112,5 ml of nectar and sugar concentration of 13,9%. the feminine ones didn't produce nectar, having been identified mimetism of the masculine ones by the feminine ones. the pollen viability didn't vary along the day (average 97,20%). there was production of fruits for agamospermy and for crossed fecundation. the main observed pollinators was moths, what corroborates with its characteristics of phalenophily syndrome; other insects meantime, as butterflies, also can contribute to its reproduction.
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