Inhibition of bacterial and fungal plant pathogens by thionins of types I and II

Molina Fernández, Antonio; Ahl Goy, Patricia; Fraile Pérez, Aurora; Sánchez-Monge Laguna de Rins, Rosa y García Olmedo, Francisco (1993). Inhibition of bacterial and fungal plant pathogens by thionins of types I and II. "Plant Science", v. 92 (n. 2); pp. 169-177. ISSN 0168-9452. https://doi.org/10.1016/0168-9452(93)90203-C.

Descripción

Título: Inhibition of bacterial and fungal plant pathogens by thionins of types I and II
Autor/es:
  • Molina Fernández, Antonio
  • Ahl Goy, Patricia
  • Fraile Pérez, Aurora
  • Sánchez-Monge Laguna de Rins, Rosa
  • García Olmedo, Francisco
Tipo de Documento: Artículo
Título de Revista/Publicación: Plant Science
Fecha: 1993
Volumen: 92
Materias:
Palabras Clave Informales: Thionins; Plant pathogens; Triticum aestivum; Hordeum vulgare
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Biotecnologia [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Thionins are cysteine-rich, 5 kDa polypeptides which are active against plant pathogens. Thionins of type I, from the endosperms of wheat (Wα1, Wα2, Wβ) and barley (Bα, Bβ), and of type II, from barley (BLa, BLb, BLc), have been purified to apparent homogeneity. For a given pathogen, the effective concentration giving 50% inhibition (EC-50) determined for the different thionins varied over a less than fivefold range. The ranking of the variants according to their activity differed among different pathogens, but certain variants, such as Wα1, Wβ or Bβ, tended to be more active than the others. Strains of some bacterial species, such as Clavibacter michiganensis subsp. sepedonicus or Pseudomonas solanacearum were sensitive in the 2–3 × 10−7M concentration rangem whereas the most sensitive fungal pathogens, such as Rosellinia necatrix, Colletotrichum lagenarium and Fusarium solani, had EC-50 values in the 1−4 × 10−6M range. Thionins, which were not particularly effective in liquid medium against Phytophthora infestans (EC-50=3.9 × 10−5M) were more effective than the fungicide Ridomil on a molar basis in a drop application assay on leaf discs from potato.

Más información

ID de Registro: 6027
Identificador DC: http://oa.upm.es/6027/
Identificador OAI: oai:oa.upm.es:6027
Identificador DOI: 10.1016/0168-9452(93)90203-C
URL Oficial: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TBH-47T2T9C-6&_user=885385&_coverDate=12/31/1993&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1643736380&_rerunOrigin=google&_acct=C000047350&_version=1&_u
Depositado por: Memoria Investigacion
Depositado el: 16 Feb 2011 11:00
Ultima Modificación: 20 Abr 2016 14:40
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