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Effect of a Non-Localized Infection by Southern Bean Mosaic Virus on a Cell Wall Glycoprotein from Bean Leaves. Warwick C. Kimmins, Professor, Biology Department, Dalhousie University, Halifax, Nova Scotia, Canada; Robert G. Brown, Associate Professor, Biology Department, Dalhousie University, Halifax, Nova Scotia, Canada. Phytopathology 65:1350-1351. Accepted for publication 19 June 1975. DOI: 10.1094/Phyto-65-1350.

A cell-wall-related glycoprotein was extracted from primary leaves of Phaseolus vulgaris L. 'Black Valentine'. The amount of glycoprotein in leaves systemically infected with southern bean mosaic virus (SBMV) was compared with that in abraded leaves and in untreated controls. It was recovered in significantly greater amounts at 24 and 72 hours from the abraded plants, and this response is attributed to wounding. Less glycoprotein was obtained from leaves that were similarly injured during inoculation with SBMV. This suggests that intercellular spread of SBMV was associated with suppression of some aspects of cell wall modification.