Hydroxyproline-Rich Glycoproteins (Hrgps) in Infected Plants : Signaling, Accumulation and Gene Expression
Part of the NATO ASI Series book series (volume 4)
Defense responses are initiated in plants as a result of recognition of self and non -self . Research on cell surfaces in plant-microorganism interactions have shown during the past ten years that the cell wall plays a key role both as a source of signal molecules (Darvill and Albersheim 1984), and as a site of signal-induced defense responses. The accumulation of hydroxyproline-rich glycoproteins (HRGPs), and the enhanced deposition of lignin-like material account for such responses (Bell 1981; Esquerré-Tugayé et al 1979). This paper is concerned with hydroxyproline-rich glycoproteins, under the double point of view of :
summarizing the data in favor of its accumulation as a defense response, and
defining HRGPs at the chemical and molecule levels.
KeywordsSugar Cellulose Codon Lignin Serine
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