ISSN:
1432-2048
Keywords:
Cell-suspension culture
;
Elicitor
;
Glycine (phytoalexin production)
;
Heptaglucan
;
Petroselinum
;
Protoplast
;
Phytoalexin
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Different components of a crude cell-wall preparation from the phytopathogenic fungus, Phytophthora megasperma f. sp. glycinea, act as elicitors of phytoalexin accumulation in parsley (Petroselinum crispum) and soybean (Glycine max). Treatments of cultured parsley cells and protoplasts or soybean cells and cotyledons with proteinase-digested or deglycosylated elicitor preparations identify proteinaceous constituents as active eliciting compounds in parsley, which are inactive in soybean. The proteinase-treated elicitor as well as a defined heptaglucan are active in soybean but do not stimulate phytoalexin synthesis in parsley. Soybean and parsley cells therefore not only perceive different signals from cell walls of Phytophthora megasperma f. sp. glycinea, but are unable to respond to the fungal compounds primarily recognized by the other plant.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00392482
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