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Las celulasas pueden mejorar la síntesis de beta-glucano.
Science (New York, N.Y.)
|February 18, 1977
Resumen
El tratamiento preliminar con celulasas purificadas aumenta significativamente la síntesis de beta-glucano en las plantas de guisante. Esto sugiere que las celulasas actúan como primers, mejorando el alargamiento de la cadena microfibrilar de celulosa para mejorar el desarrollo de la pared celular de la planta.
Área de la Ciencia:
- Bioquímica de las plantas bioquímica de las plantas.
- La biosíntesis de la pared celular.
Sus antecedentes:
- El beta-glucano es un componente crucial de las paredes celulares de las plantas.
- Las microfibras de celulosa proporcionan integridad estructural a los tejidos vegetales.
Objetivo del estudio:
- Para investigar el efecto del tratamiento con celulosa en la síntesis de beta-glucano.
- Explorar el mecanismo por el cual las celulasas influyen en la producción de polisacáridos.
Principales métodos:
- Las rebanadas de tejido del epicotilo del guisante fueron tratadas con celulasas purificadas.
- La síntesis de beta-glucano se cuantificó utilizando uridina difosfoglucosa como sustrato.
Principales resultados:
- El tratamiento con celulosa aumentó la síntesis de beta-glucano de dos a tres veces.
- El efecto se observó después de un tratamiento preliminar a corto plazo.
Conclusiones:
- Las celulasas pueden introducir extremos de cadena en las microfibras de celulosa.
- Estos extremos de la cadena probablemente sirven como primers para el alargamiento de la cadena de beta-glucano.
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