Your browser doesn't support javascript.
loading
Metabolism, excretion and avoidance of cyanogenic glucosides in insects with different feeding specialisations.
Pentzold, Stefan; Zagrobelny, Mika; Bjarnholt, Nanna; Kroymann, Juergen; Vogel, Heiko; Olsen, Carl Erik; Møller, Birger Lindberg; Bak, Søren.
Afiliación
  • Pentzold S; Plant Biochemistry Laboratory, Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center "Plant Plasticity", University of Copenhagen, Frederiksberg C, Copenhagen, Denmark. Electronic addres
  • Zagrobelny M; Plant Biochemistry Laboratory, Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center "Plant Plasticity", University of Copenhagen, Frederiksberg C, Copenhagen, Denmark. Electronic addres
  • Bjarnholt N; Plant Biochemistry Laboratory, Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center "Plant Plasticity", University of Copenhagen, Frederiksberg C, Copenhagen, Denmark. Electronic addres
  • Kroymann J; Ecologie Systématique Evolution, CNRS/Université Paris-Sud/AgroParisTech, Université Paris-Saclay, 91400, Orsay, France. Electronic address: juergen.kroymann@u-psud.fr.
  • Vogel H; Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany. Electronic address: hvogel@ice.mpg.de.
  • Olsen CE; Plant Biochemistry Laboratory, Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center "Plant Plasticity", University of Copenhagen, Frederiksberg C, Copenhagen, Denmark. Electronic addres
  • Møller BL; Plant Biochemistry Laboratory, Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center "Plant Plasticity", University of Copenhagen, Frederiksberg C, Copenhagen, Denmark; Carlsberg Laborat
  • Bak S; Plant Biochemistry Laboratory, Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Copenhagen, Denmark; VILLUM Research Center "Plant Plasticity", University of Copenhagen, Frederiksberg C, Copenhagen, Denmark. Electronic addres
Insect Biochem Mol Biol ; 66: 119-28, 2015 Nov.
Article en En | MEDLINE | ID: mdl-26483288
Cyanogenic glucosides (CNglcs) are widespread plant defence compounds releasing toxic hydrogen cyanide when hydrolysed by specific ß-glucosidases after plant tissue damage. In contrast to specialist herbivores that have mechanisms to avoid toxicity from CNglcs, it is generally assumed that non-adapted herbivores are negatively affected by CNglcs. Recent evidence, however, implies that the defence potential of CNglcs towards herbivores may not be as effective as previously anticipated. Here, performance, metabolism and excretion products of insects not adapted to CNglcs were analysed, including species with different degrees of dietary specialisation (generalists, specialists) and different feeding modes (leaf-snipping lepidopterans, piercing-sucking aphids). Insects were reared either on cyanogenic or acyanogenic plants or on an artificial cyanogenic diet. Lepidopteran generalists (Spodoptera littoralis, Spodoptera exigua, Mamestra brassicae) were compared to lepidopteran glucosinolate-specialists (Pieris rapae, Pieris brassicae, Plutella xylostella), and a generalist aphid (Myzus persicae) was compared to an aphid glucosinolate-specialist (Lipaphis erysimi). All insects were tolerant to cyanogenic plants; in lepidopterans tolerance was mainly due to excretion of intact CNglcs. The two Pieris species furthermore metabolized aromatic CNglcs to amino acid conjugates (Cys, Gly, Ser) and derivatives of these, which is similar to the metabolism of benzylglucosinolates in these species. Aphid species avoided uptake of CNglcs during feeding. Our results imply that non-adapted insects tolerate plant CNglcs either by keeping them intact for excretion, metabolizing them, or avoiding uptake.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas / Cianuro de Hidrógeno / Herbivoria / Glucósidos / Insectos Límite: Animals Idioma: En Revista: Insect Biochem Mol Biol Asunto de la revista: BIOLOGIA MOLECULAR / BIOQUIMICA Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas / Cianuro de Hidrógeno / Herbivoria / Glucósidos / Insectos Límite: Animals Idioma: En Revista: Insect Biochem Mol Biol Asunto de la revista: BIOLOGIA MOLECULAR / BIOQUIMICA Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido