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Science. 1965 Dec 17;150(3703):1610-1.

Callose: Lateral Movement of Assimilates from Phloem.


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.

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