Structure of the host-specific toxins produced by the fungal pathogen Periconia circinata.
AUTOR(ES)
Macko, V
RESUMO
Four metabolites named peritoxins A and B and periconins A and B have been isolated together with the known metabolite circinatin from culture filtrates of the fungal pathogen Periconia circinata. Peritoxins A and B, which correspond to the P. circinata toxins Ia and IIa partially characterized in previous work, are selectively toxic to genotypes of Sorghum bicolor susceptible to the pathogen, whereas periconins A and B are biologically inactive. Combination of instrumental analysis and chemical degradation has led to structural assignments for each of the four compounds; only the configuration at some of the chiral centers remains undefined. Structural comparison suggests a precursor role for circinatin in the formation of the peritoxins and the periconins.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=50174Documentos Relacionados
- Alterations in gene expression in sorghum induced by the host-specific toxin from Periconia circinata
- Effects of Host-Specific Toxins on Electropotentials of Plant Cells 123
- Isolation and Partial Characterization of Four Host-specific Toxins of Helminthosporium maydis (Race T) 1
- Arthropod- and host-specific gene expression by Borrelia burgdorferi.
- Chemical Constitution of the Host-Specific Toxin of Helminthosporium carbonum1
