title: Callose: Lateral Movement of Assimilates from Phloem.
abstract: Brief heating of cotton petioles increased phloem callose and decreased lateral movement of assimilates containing carbon-14. The heat-induced phloem callose appears to have been responsible for part of this decrease; we conclude, therefore, that lateral movement from sieve tubes was along proto plasmic connections.
authors.forename: D B
authors.initials: DB
authors.lastname: Webster
authors.forename: H H
authors.initials: HH
authors.lastname: Currier