Artículos

Artículos Encontrados 17 registros  anterior11 - 17  ir al registro: La búsqueda tardó 0.01 segundos. 
11.
34 p, 168.9 KB Geographical variation in alkaloid production in Conium maculatum populations experiencing differential herbivory by Agonopterix alstroemeriana / Castells, Eva (Universitat Autònoma de Barcelona. Departament de Farmacologia, de Terapèutica i de Toxicologia) ; Berhow, M. A. ; Vaughn, S. F. ; Berenbaum, May
Conium maculatum, a Eurasian weed naturalized in North America, contains high concentrations of piperidine alkaloids, which act as chemical defenses against herbivores. In the United States, C. maculatum was largely free from herbivory until approximately 30 years ago, when it was re-associated via accidental introduction with a monophagous European herbivore, the oecophorid caterpillar Agonopterix alstroemeriana. [...]
2005 - 10.1007/s10886-005-5921-x
Journal of chemical ecology, Vol. 31, Num. 8 (2005) , p. 1693-1709  
12.
9 p, 285.6 KB Laboratory rearing of Agonopterix alstroemeriana, the defoliating poison hemlock (Conium maculatum L.) moth, and effects of piperidine alkaloids on preference and performance / Castells, Eva (Universitat Autònoma de Barcelona. Departament de Farmacologia, de Terapèutica i de Toxicologia) ; Berenbaum, May
Conium maculatum L. (Apiaceae), or poison hemlock, is an invasive plant native to Europe that has become extensively naturalized throughout North America. This species contains piperidine alkaloids, including coniine and -coniceine, that are highly toxic to vertebrates. [...]
2006 - 10.1603/0046-225X-35.3.607
Environmental entomology, Vol. 35, Num. 3 (2006) , p. 607-615  
13.
30 p, 171.5 KB Resistance of the generalist moth Trichoplusia ni (Noctuidae) to a novel chemical defense in the invasive plant Conium maculatum / Castells, Eva (Universitat Autònoma de Barcelona. Departament de Farmacologia, de Terapèutica i de Toxicologia) ; Berenbaum, May
Conium maculatum is an apiaceous species native to Eurasia that is highly toxic to vertebrates due to the presence of piperidine alkaloids, including coniine and γ-coniceine. More than 200 years after invading the United States this species remains mostly free from generalist insect herbivores. [...]
2008 - 10.1007/s00049-007-0388-6
Chemoecology, Vol. 18, Num. 1 (2008) , p. 11-18  
14.
32 p, 155.9 KB Host plant selection by a monophagous herbivore is not mediated by quantitative changes in unique plant chemistry : Agonopterix alstroemeriana and Conium maculatum / Castells, Eva (Universitat Autònoma de Barcelona. Departament de Farmacologia, de Terapèutica i de Toxicologia) ; Berenbaum, May
Host plant selection by ovipositing females is a key process determining the success of phytophagous insects. In oligophagous lepidopterans, host-specific plant secondary chemicals are expected to be dominant factors governing oviposition behavior; distinctive compounds can serve as high-contrast signals that clearly differentiate confamilial hosts from non-hosts increasing the accuracy of host quality evaluation. [...]
2008 - 10.1007/s11829-008-9032-9
Arthropod-Plant Interactions, Vol. 2 (2008) , p. 43-51  
15.
2 p, 109.8 KB Una planta exòtica s'allibera dels herbívors associats en colonitzar nous hàbitats a Catalunya / Castells, Eva (Universitat Autònoma de Barcelona. Departament de Farmacologia, de Terapèutica i de Toxicologia)
Una espècie exòtica es converteix en espècie invasora quan forma poblacions estables que s'expandeixen pel nou territori. Una de les hipòtesis que intenta explicar aquest procés prediu que les plantes exòtiques s'alliberen dels consumidors que tenien associats a l'àrea d'origen. [...]
Una especie exótica se convierte en especie invasora cuando forma poblaciones estables que se expanden por el nuevo territorio. Una de las hipótesis que intenta explicar este proceso predice que las plantas exóticas se liberan de los consumidores que tenían asociados en el área de origen. [...]
An exotic species becomes an invasive one when it forms stable populations that expand on the new territory. One hypothesis attempting to explain this process predicts that exotic plants lose the herbivores associated with their area of origin. [...]

2014
UAB divulga, Abril 2014
3 documentos
16.
8 p, 118.7 KB Carbon-based secondary and structural compounds in Mediterranean shrubs growing near a natural CO2 spring / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Castells, Eva (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Joffre, Richard (Centre d'Ecologie Fonctionnelle et Evolutive) ; Tognetti, Roberto (Università degli Studi del Molize. Dipartimento di Scienze Animali, Vegetali e dell'Ambiente)
We studied carbon-based secondary and structural compounds (CBSSCs) in Myrtus communis, Erica arborea, and Juniperus communis co-occurring in a natural CO2 spring site and in a nearby control site in a Mediterranean environment. [...]
2002 - 10.1046/j.1365-2486.2002.00466.x
Global change biology, Vol. 8, Núm. 3 (March 2002) , p. 281-288  
17.
21 p, 681.5 KB Vers una teoria global de defensa química en plantes : el cas de alcaloides / Castells, Eva (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Els alcaloides són un grup de productes del metabolisme secundari altament divers i distribuït majoritàriament en les angiospermes. En les plantes se'ls atribueix com a principal funció la defensa química contra herbívors i patògens. [...]
Alkaloids are a large and very diverse group of secondary metabolites found principally in angiosperms. They play a defensive role in plants against herbivores and pathogens. Alkaloid-bearing plants are usually short life plants and they are localized preferently in tropical regions. [...]

1997
Orsis, V. 12 (1997) p. 141-161  

Artículos : Encontrados 17 registros   anterior11 - 17  ir al registro:
¿Le interesa recibir alertas sobre nuevos resultados de esta búsqueda?
Defina una alerta personal vía correo electrónico o subscríbase al canal RSS.