期刊
JOURNAL OF PLANT PHYSIOLOGY
卷 158, 期 1, 页码 121-124出版社
URBAN & FISCHER VERLAG
DOI: 10.1078/0176-1617-00231
关键词
Oryza sativa; chitin oligosaccharide; elicitor; receptor
Presence of a high-affinity binding protein for N-acetylchitooligosaccharide (fragments of chitin) elicitor in the plasma membrane from rice leaf and root cells was shown by affinity labeling experiments with an I-125-labeled N-acetylchitooligosaccharide derivative. Binding studies also showed that binding site in the leaf cells has a high affinity to highly elicitor-active, larger chitin fragments but much lower or no affinity to less elicitor-active or elicitor-inactive oligosaccharides. The amount of the binding protein in the leaf cells was slightly smaller than that in the suspension-cultured cells but much larger compared to that in the root cells. These results indicate the possible- involvement of the elicitor binding protein in the perception of the elicitor signal in intact rice plant.
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