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.
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References
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Vickery, R.S. Peroxidases do not move in phloem. Planta 138, 105–106 (1978). https://doi.org/10.1007/BF00392924
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DOI: https://doi.org/10.1007/BF00392924