title: Peroxidases do not move in phloem.
abstract: Phloem exudates from grafts between Queensland Blue pumpkin (Cucurbita maxima Duch.) and Candy Red Hawkesbury watermelon (Citrullus vulgaris Schrad.) were analysed by iso-electric focusing to detect iso-enzymes of peroxidase. These enzymes did not move in intact phloem but, when stems were cut, they surged rapidly through graft unions.
authors.affiliation: School of Botany, University of New South Wales, 2033, Kensington, N.S.W., Australia.
authors.forename: R S
authors.initials: RS
authors.lastname: Vickery