Cell Surfaces in Plant-Microorganism Interactions: I. A Structural Investigation of Cell Wall Hydroxyproline-rich Glycoproteins Which Accumulate in Fungus-infected Plants 1

摘要

Infection of muskmelon Cucumis melo seedlings by the fungus Colletotrichum lagenarium causes a 10-fold increase in the amount of cell wall hydroxyproline-rich glycoprotein. Evidence for this increase was provided by studying two specific markers of this glycoprotein, namely hydroxyproline and glycosylated serine. The lability of the O-glycosidic linkage of wall-bound glycosylated serine in the presence of hydrazine, was used to determine the amount of serine which is glycosylated.