Purification and characterization of toxins from wheat isolates of Drechslera tritici-repentis, Bipolaris bicolor, and Bipolaris sorokiniana



Título del documento: Purification and characterization of toxins from wheat isolates of Drechslera tritici-repentis, Bipolaris bicolor, and Bipolaris sorokiniana
Revista: The journal of venomous animals and toxins
Base de datos: PERIÓDICA
Número de sistema: 000298649
ISSN: 0104-7930
Autores: 1
2
Instituciones: 1Instituto Biologico, Centro de Biotecnologia, Sao Paulo. Brasil
2Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, Sao Paulo. Brasil
Año:
Volumen: 5
Número: 2
Paginación: 184-199
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Low molecular weight metabolites produced by Bipolaris bicolor, Bipolaris sorokiniana, and Drechslera tritici-repentis are considered to be toxins that facilitate disease in wheat cultivars. Several such toxins were isolated from these fungi. Electrophoresis demonstrated bands of proteins that reduced shoot inhibition in susceptible plants but not in resistant plants. Chlorophyll content was reduced during the first 10 hours of light in the susceptible plants and after 18 hours in the resistant plants. The enzyme beta-1,3-glucanase increased in the resistant plants after treatment with toxins, but in the susceptible plants this enzyme decreased compared to the control. This suggests that the toxin was a protein and the susceptible plants needed other mechanisms for induced resistance
Disciplinas: Biología,
Agrociencias
Palabras clave: Hongos,
Fitopatología,
Trigo,
Micotoxinas,
Drechslera tritici-repentis,
Bipolaris bicolor,
Bipolaris sorokiniana
Keyword: Biology,
Agricultural sciences,
Fungi,
Phytopathology,
Wheat,
Mycotoxins,
Drechslera tritici-repentis,
Bipolaris bicolor,
Bipolaris sorokiniana
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