English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/125988
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Non-systemic fungal endophytes in Carex brevicollis may influence the toxicity of the sedge to livestock

AutorCanals, Rosa María; San Emeterio, L.; Sánchez Márquez, M. Salud ; Ruiz de los Mozos, Igor ; Pujol, Pablo; Zabalgogeazcoa, Iñigo
Palabras claveLivestock toxicity
Alkaloid
Brevicolline
Fungal endophyte
Plant-endophyte interaction
Fecha de publicación2014
EditorInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España)
CitaciónSpanish Journal of Agricultural Research 12(3): 623- 632 (2014)
ResumenThe sedge Carex brevicollis is a common component of semi-natural grasslands and forests in temperate mountains of Central and Southern Europe. The consumption of this species causes a severe toxicity to livestock, associated to high plant concentrations of the β-carbolic alkaloid brevicolline. This research was started to ascertain the origin of this toxicity. An exploratory survey of alkaloid content in plants growing in contrasting habitats (grasslands/forests) did not contribute to find a pattern of the variable contents of brevicolline in plants, and led us to address other possibilities, such as a potential role of fungal endophytism. Systemic, vertically-transmitted endophytes producers of herbivore-deterrent alkaloids are known to infect many known forage grasses. We did not detect systemic endophytes in C. brevicollis, but the sedge harboured a rich community of non-systemic fungi. To test experimentally whether non-systemic endophytes influenced the synthesis of the alkaloid, 24 plants were submitted to a fungicide treatment to remove the fungal assemblage, and the offspring ramets were analysed for alkaloid content. Brevicolline was the major β-carbolic alkaloid detected, and the contents were at least five times lower in the new ramets that developed from fungicide-treated plants than in the untreated plants. This result, although not conclusive about the primary source of the alkaloid (a plant or a fungal product) indicates that fungal endophytes may affect the contents of the toxic brevicolline in this sedge.
Versión del editorhttp://dx.doi.org/10.5424/sjar/2014123-5219
URIhttp://hdl.handle.net/10261/125988
DOI10.5424/sjar/2014123-5219
Identificadoresdoi: 10.5424/sjar/2014123-5219
issn: 1695-971X
Aparece en las colecciones: (IDAB) Artículos
(IRNASA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Nonsystemic fungal endophytes_Canals.pdf390,6 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.