CONCENTRADOS DE SAPONINA DE CHENOPODIUM QUINOA Y DE CAIPHORA ANDINA: ALTERNATIVAS COMO BIOCONTROLADORES DE HONGOS FITOPATÓGENOS
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Rev. Bol. Quim
Abstract
Se evaluó la actividad biocontroladora de extractos concentrados de Caiphora andina (PA) M-17y el concentrado de saponina asilado de la cáscara de Chenopodium quinoa Wild. (M-16). La disminución de la velocidad de crecimiento del hongo fitopatógeno durante 12 días fue utilizado como parámetro de medición para determinar la actividad biontroladora de los extractos de plantas. El fungicida sintético Sistane a 1mL/L de concentración fue empleado como control positivo. El extracto M-16 presento una inhibición de 42 % sobre Aspergillus flavus. Ulocladium spp. fue inhibido en un 35 % con el extracto M-16 y 36 % con el extracto M-17. Fusarium spp. fue inhibido en un 47 %. Las saponinas, M-16 inhiben se en un 42 % a la cepa Aspergillus flavus a los 4 días iniciales del experimento. Estos resultados muestran un potencial empleo de estas plantas incluyendo las saponinas como agentes controladores de hongos fitopatógenos
The biocontroler activity of the extracts from Caiphora andina (PA) M-17 and a saponin isolated from the skin of Chenopodium quinoa Wild. (M-16) were assessed. The decreasing in the rate of growth of the fungal phytopathogen during 12 days was used as indicator of the biocontroler activity of the plant extract. The biocontroler activity was compared against the synthetic fungicide Sistane used as positive control at 1 mL/L. The M-16 showed an inhibition of 42% of the Aspergillus flavus. When the plant extracts M-16 and M-17 were used against Ulocladium spp an inhibition of 35% and 36% was achieved respectively. Fusarium spp was susceptible in 47%. Aspergillus flavus was inhibited in 42% during 4 days by saponin M-16. Thus, this research shows the potential use of plant extracts including saponins as controler agents of phytopathogenic fungi. Corresponding author: enrique.terrazas@yahoo.com
The biocontroler activity of the extracts from Caiphora andina (PA) M-17 and a saponin isolated from the skin of Chenopodium quinoa Wild. (M-16) were assessed. The decreasing in the rate of growth of the fungal phytopathogen during 12 days was used as indicator of the biocontroler activity of the plant extract. The biocontroler activity was compared against the synthetic fungicide Sistane used as positive control at 1 mL/L. The M-16 showed an inhibition of 42% of the Aspergillus flavus. When the plant extracts M-16 and M-17 were used against Ulocladium spp an inhibition of 35% and 36% was achieved respectively. Fusarium spp was susceptible in 47%. Aspergillus flavus was inhibited in 42% during 4 days by saponin M-16. Thus, this research shows the potential use of plant extracts including saponins as controler agents of phytopathogenic fungi. Corresponding author: enrique.terrazas@yahoo.com
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Vol. 27, No. 1