Purification and characterization of toxins from wheat isolates of Drechslera tritici-repentis, Bipolaris bicolor, and Bipolaris sorokiniana
J. venom. anim. toxins
;
5(2): 184-99, 1999. ilus, tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-276616
ABSTRACT
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 reduce 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 induce resistance.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Proteínas de Plantas
/
Toxinas Biológicas
/
Triticum
/
Micotoxinas
Idioma:
Inglés
Revista:
J. venom. anim. toxins
Asunto de la revista:
Toxicología
Año:
1999
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS