Biochemical factors involved in vetch resistance toOrobanche aegyptiaca

Experiments were performed to elucidate the biochemical nature of the differential response of resistantVicia atropurpureacv. Popany and susceptibleVicia sativacv. Yovel to the parasitic weedOrobanche aegyptiaca. Plant root material was obtained by growing vetch plants in association withOrobanchese...

Full description

Saved in:
Bibliographic Details
Published in:Physiological and molecular plant pathology 1999-03, Vol.54 (3-4), p.87-96
Main Authors: Goldwasser, Y., Hershenhorn, J., Plakhine, D., Kleifeld, Y., Rubin, B.
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Experiments were performed to elucidate the biochemical nature of the differential response of resistantVicia atropurpureacv. Popany and susceptibleVicia sativacv. Yovel to the parasitic weedOrobanche aegyptiaca. Plant root material was obtained by growing vetch plants in association withOrobancheseeds on glass microfibre filter sheets inserted in polyethylene bags replenished by nutrient solution. Higher concentrations of bound phenolics, free phenolics and lignin, and higher activity of peroxidase were observed in cv. Popany roots as a result ofO. aegyptiacainfection than were found in cv. Yovel vetch. No differences in hydroxyproline-rich glycoproteins levels were detected between infected and non-infected roots of either vetch cultivar. These results suggest that the resistant vetch defense mechanism involves elevated induction of the phenylproponoid pathway uponOrobancheinfection, conferring mechanical and chemical barriers confronting the invading parasite.
ISSN:0885-5765
1096-1178
DOI:10.1006/pmpp.1998.0191