Soluble, membrane and wall peroxidases, phenylalanine ammonia-lyase, and lignin changes in relation to vitrification of carnation tissues cultured in vitro
[en] Vitrification of carnation tissues by passage from solid to liquid medium was accompanied by decreased lignin content. The higher lignin level of normal tissues corresponded to a higher phenylalanine ammonia-lyase activity. It also paralleled a much higher activity of soluble and wall peroxidases towards syringaldazine. Kinetical analysis of soluble isoperoxidases indicated a two-step control of basic and acidic enzymes with a diminished activity of the latter in glassy plants. Compartment analysis of guaiacol peroxidases showed a different distribution in malformed tissues.
Kevers, Claire ; Université de Liège > Département des sciences de la vie > Département des sciences de la vie
Gaspar, Thomas; Université de Liège - ULiège
Language :
English
Title :
Soluble, membrane and wall peroxidases, phenylalanine ammonia-lyase, and lignin changes in relation to vitrification of carnation tissues cultured in vitro
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